Small But Strong Outstanding University

Professor’s Profile

Chang Choong-koo

  • Major : Electric Power System Design and Analysis
  • Professor Professor/Advisor of Student Coundseling
  • Office : Room 420 Main Bldg
  • Phone : +82-52-712-7303
  • Email : ckchang@kings.ac.kr

Educational Background

Ph.D., Electrical Engineering, Myongji University (2001.8) 
M.S., Electrical Engineering, Inha University (1990.8)
B.S., Electrical Engineering, Inha University (1985.2)

Professional Experience

Dean of Academic Affairs, KINGS (2016.10.4~2018.5.4)
Head of NPP Engineering Department, KINGS (2016.1~6.30 & 2017.11.2~2018.5.4)
Executive Managing Director, Sangjin Engineering Co., Ltd. (2001.2~2013.2) 
Manager (Senior II), Samsung Electronics Co., Ltd. and Samsung SDS (1993.2~1998.9)
Senior Manager, Korea Power Engineering Company Co., Ltd. (1985.3~1993.2)

Research

Design and Analysis of Electric Power Systems for Nuclear Power Plants

In relation with the design and analysis of electric power systems for nuclear power plants this lab study on the optimization of electric power systems.

Study area covers :

- Requirements analysis and review for electrical system design
- Basic design snd trade-off analysis
- Selection and sizing of major electrical equipment 
- Network analysis including short circuit and load flow simulation

 

[Related Publication]
1. Choong-koo Chang(2015-11-20), Optimal Neutral Ground Resistor Rating of The Medium Voltage Systems in Power Generating Stations ,Journal of International Council on Electrical Engineering
2. Sang-Hyun Lee and Choong-koo Chang(2017-01-02), Separation of Transformers for Class 1E Systems in Nuclear Power Plants, Hindawi Publishing Corporation 

3. Exavier Zakaria Barie and Choong-koo Chang(2018-10-15), Application of variable frequency drive on the condensated pump motors of APR 1400 nuclear power plants for energy saving, , Journal of International Council on Electrical Engineering

 

Protection and Relaying System for Nuclear Power Plants

Protective relaying is an integral part of any electrical power system. Protective relays work in concert with sensing and control devices to accomplish this function. In this lab perform the research as follows :


- Analyze and define design requirements for electrical protection systems
- Design of the protection scheme for the different fault types
- Define protective relay setting criteria and perform coordination calculations
- Implementation of IEC 61850 standard protocol and non-conventional CTs 


[Related Publication]
1. Choong-koo Chang(2015-08-17), Application of Low Voltage High Resistance Grounding In Nuclear Power Plants, Nuclear Engineering and Technology 
2. Improving Motor Protection Using Thermal Model, The Transactions of the Korean Institute of Electrical Engineers Vol. 62, No. 2.

3. Moustafa Abdelrahman Moustafa and Choong-koo Chang (2020-01-30), Cascading failure Prevention in Electrical Power Protection System of Nuclear Power Plant using IEC61850 , The Transactions of the Korean Institute of Electrical Engineers

Plant Support Engineering for Nuclear Power Plants

The plant supporting engineering offers products and services focused on near-term practical solutions to the diverse challenges faced by nuclear industry engineering organizations in today’s increasingly competitive environment. Research topics are as follows:


- ICT based configuration management 
- Class 1E qualification and commercial grade item dedication
- Improving vulnerabilities of electrical system design 
- Prevention of counterfit and fraudulent item


[Related Publication]
1. Choong-koo Chang(2015-07-31), NEQM (NFC Based Equipment Qualification Mangement) System, Journal of Energy and Power Engineering/ David publishing company.9 (2015) 622-631 
2. Choong-koo Chang(2015-12-2), Systems Engineer Program for Practical Nuclear Power Plant Education, Journal of the Korea Society of Systems Engineering 

Power Quality Problems and Mitigation Techniques

Due to the increase use of power electronic converters, the quality of power in distribution networks is deteriorating. This is causing a number of problems such as increased losses, poor utilization of distribution systems, mal-operation of sensitive equipment, and protective devices. In this regard, perform the study in the following topics:


- Harmonics analysis
- Arc flash analysis
- Static var compensation
- Dynamic voltage compensator


[Related Publication]
1. Choong-koo Chang(2017-02-00), Analysis of Open-Phase Conditions in Korean Standard Nuclear Power Plants and Fault Detection Scheme, Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
2. Choong-koo Chang(2018-09-01), Mitigation of High Energy Arcing Faults(HEAF) in the Medium Voltage SWGR of Nuclear power Plant, Nuclear Engineering and Technology

Emergency Power Systems for Nucler Power Plants

The purpose of the EPS is to provide the plant with the necessary power in all relevant conditions within the design basis so that the plant can be maintained in a safe state after postulated initiating events.  In this regard, research topics are as follows:


- Design basis for emergency power systems
- Recommendations on the design of systems and features
- Coping with extended loss of AC power (ELAP)
- Lagrge scale battery energy storage system to cope with ELAP


[Related Publication]
1. Hamdy Samier Hamdy Abdelbadea and Choong-koo Chang(2017-01-31), Extended Battery to Cope with ELAP for APR1400, Journal of Energy and Power Engineering 11 (2017) 56-62
2. Choong-koo Chang(2015-12-9), A new MV Bus Transfer Scheme for Nuclear Power Plants, EPJ Nuclear Sci. Technol./EDP Sciences 
3. Choong-koo Chang and Mummuni Sulley(2018-11-01), Sizing of  Lithium-ion Stationary Battery Capacity and Dimension for Nuclear Power Plants, Journal of Electrical Engineering & Technology
4. Choong-koo Chang(2019-08-03), Factors Affecting Capacity Design of Lithium‐Ion Stationary Batteries, MDPI Batteries

ICT For Electric Power Systems

In last years, an increasing incorporation of Information and Communication Technologies (ICT) into the power systems has been evident. ICT have enabled improvement of the control of the power systems and by consequence; the reliability and the flexibility of these systems. The followings are scope of research in this lab:


- Coordination between Micro Grid and large scale generating station
- Intelligent power distribution system for auxiliary power systems
- IoT based electric power distribution systems

 

[Related Publication]
1. Chang Choong-koo(2001.07) Multi-Agent System having Adaptive Overcurrent Protection Function for Power Distribution system, The Korean Institute of Electrical Engineers
2. Choong-koo Chang(2013-10-31 to 2013-11-2), NFC Based Life Cycle Management System for Electrical Plant, Korean Institute of Electrical Engineers Fall Conference
3.  Ahmed Mohamed Elmashtoly and Choong-koo Chang(2020-02-10), Prognostics Health Management System for Power Transformer with IEC61850 and Internet of Things, Journal of Electrical Engineering & Technology
4. Choong-koo Chang(2020-05-26), Blockchain Aided Plant Management System for Nuclear Power Plants, MDPI Inforamtion

Energy New Business

Increasement of distributed energy resources in the electric power grid lead to various new businesses. For example, an ancillary service is anything that supports the transmission of electricity from its generation site to the customer. These services may include load regulation, spinning reserve, non-spinning reserve, replacement reserve and voltage support. Implementation of ICT also make evolution in the electricity market. In this lab the follwing issues will be tackled:


- Ancillary services for future power grid
- Fuel cell as an emergency power source
- Fuel cell based microgrid in NPP neighbor
- Load following of NPP in high variable energy grid

 

[Related Publication]
1. Choong-koo Chang (2017-07-12 to 2017-07-14), Voltage Support by Static Var Compensator in Nuclear Power Plants, Korean Institute of Electrical Engineers Summer Conference Proceeding

Lab Members

  • 2023 Graduates
    2023 Graduates
  • 2022 Graduates
    2022 Graduates
  • 2021 Graduates
    2021 Graduates
  • 2020 Graduates
  • 2019 Graduates
  • 2018 Graduates
  • 2017 Graduates
  • 2016 Graduates
  • 2015 Graduates

Radioactive Waste and Spent Fuel Management

Introduction To the Courses

Electric Power Systems for Power Generating Stations

Introduction

This is a course on the foundation of electric power engineering employed in the design, operation and maintenance of power generating stations. This course deals with the basic essentials of power system operation and analysis to students in the first year of master's degree courses. The emphasis is on the consideration of the system as a whole rather than on the engineering details of its constituents, and the treatment presented is aimed at practical conditions and situations rather than theoretical nicety.

Course Objectives
  • This course deals with electric power system engineering starting from the general approach such as principles of operation, technical specifications, and safety requirements. Details for the design and operational restrictions of the major electrical system equipment are also dealt with.
Student Outcomes
  • 1) Learn the basics of electric power production systems of modern power systems and alternative power systems.
    2) Learn the basics of system analysis, including the establishment of equivalent circuits of the components and the performance of components which form the main system.
    3) Learn operation, the manner in which the system is operated and controlled to give secure and economic power supplies.
    4) Learn analysis, the calculation of voltage, power, and reactive power in the system under normal and abnormal conditions. 
    5) Learn limitations of transmittable power owing to the stability of the synchronous machine, voltage stability of loads, and the temperature rises of plant.
  •  

NPP Electric Power Systems Design and Analysis

Introduction

This course is for those interested in electrical systems for Nuclear Power Plants. Electric power systems that supply power to systems vital to safety are essential to the safety of (and essential for the safety of) Nuclear Power Plants. These systems include  both the on-site and offsite power supply systems. The on-site and offsite systems work together to provide the necessary power, in all plant conditions, so that the plant can be maintained in a safe state. Offsite power systems are not plant equipment. They are, nevertheless, essential to the safety of a nuclear power plant and have a significant role in the defence-in-depth concept. This course deals with the analysis of electric power systems in nuclear power plants. The basics of electrical system design, short circuit fault analysis, load flow simulation, and motor starting simulation are major topics of this course.

Course Objectives
  • To gain knowledge in design, operation, maintenance, modification, assessment and licencing of electrical systems for nuclear power plants.
Student Outcomes
  • After finish (At the end of) this course, the particpants can perform the following design and analysis works: 
    1) Planning of Electical Distribution System
    2) Requirements Analysis for Plant Startup/Shutdown
    3) Basic Design Consideration Settlement
    4) Major Equipment Selection and Sizing
    5) Fault Analysis and Simulation 
    6) Electrical Analysis by Computer Program
    7) Short Circuit Fault Analysis
    8) Load Flow Analysis
    9) Motor Starting Simulation

 

Design Engineering of Nuclear Processes and Electrical Systems

Introduction

Technology expert program focuses on obtaining integral capability in holistic areas of design,construction,operation and maintenance of Nuclear Power Plant(NPP) systems and discipline engineering interfaces using reverse engineering and re-engineering methods.
The course consists of 2 modules over the whole year. 

Module 1 covers optimization of electric power systems for nuclear power plants

Module 2 covers design verification of electric power systems for nuclear processes

Course Objectives
  • This is a project based course for the study of nuclear power plant’s electric power system design. The students will learn the technical domain knowledge for electric power system and the practical knowledge and know-how required for the design of electric power system for Nuclear Power Plants (NPPs). The project is divided into two modules; requirements review and basic design of electric power systems, and design optimization and verification. This project course is conducted by systems engineering approach.
Student Outcomes
  • Participants are expected to conduct the following roles and responsibilities after finishing this course:
    I. Technical Management Process and Methods
     1) Technical planning,control and integration
     2) System technical process management 
     3) Technical risk management
    II. System Technical  Processes
     1) Stakeholders requirements definition
     2) System requirements analysis and definition
     3) Functional analysis and architecture design
     4) System synthesis and detail design
     5) Test, integration, verification and validation
     6) Transition,operation,support and maintenence

 

NPP Electrical Systems with AI and IoT

Introduction

This is a project based course for the study of nuclear power plant’s electric power system design. The students will learn the technical domain knowledge for electric power system and the practical knowledge and know-how required for the design and operation of electric power system for nuclear power plants (NPPs). A project based research and study is conducted on how to improve the performance and safety of the auxiliary power systems for nuclear power plant using AI and IoT technologies.

Course Objectives
  • The students will learn the art and science in the application of protective relays in electric power systems of nuclear power plants. This includes applications for generators, transformers, buses, motors and lines. Existing power distribution technology has a lot of issues in terms of designing and installing field wiring, and the number of protective relays required for protection. The main objective is to improve the reliability of electrical protection system by implementation of AI and IoT technology.
Student Outcomes
  • I. NPP Electrical Protection and Relaying System Design        
    "1) Analyze and define design requirements for electrical protection systems
    2) Describe the fundamentals of electrical power protection
    3) Identify and rectify the different fault types
    4) Perform relay coordination calculations with ETAP
    5) Write relay coordination and setting calculation report
    6) Develop an intelligent protection and control system for NPPs"        
            
    II. Design of Advanced Electrical Protection System by AI and IoT         
    "1) Upgrade legacy communication system infrastructure
    2) Build the IEC61850 data model
    3) Design innovative substation control system with IEC61850
    4) Implement prognostics health monitoring technologies into protection systems
    5) Implement IoT technologies into electrical protection systems
    6) Fuzzy logic controller and autonomous overcurrent relay coordination"

Publications, Projects and Awards

2021

[21] Thomas and Choong-koo Chang (2021-02-21,) Analysis of Switching Surge and Ground fault Relay Malfunction on Medium Voltage Switchgear, The Transactions of the Korean Institute of Electrical Engineers

2020

[20] Samwel Opana and Choong0koo Chan (2020-10-6), Mitigation of Current Transformer Saturation on Medium Voltage Switchgears in APR1400 of Nuclear Power Plants,  Institute of Electrical Engineers of Japan (IEEJ)

[19]Moustafa Abdelrahman Moustafa and Choong-koo Chang (2020-06-07), Preventing Cascading Failure in NPP’s Electrical Protection Power System, Nuclear Engineering and Technology

[18]Choong-koo Chang(2020-05-26), Blockchain Aided Plant Management System for Nuclear Power Plants, MDPI Inforamtion

[17]Ahmed Mohamed Elmashtoly and Choong-koo Chang(2020-02-10), Prognostics Health Management System for Power Transformer with IEC61850 and Internet of Things, Journal of Electrical Engineering & Technology

[16]Moustafa Abdelrahman Moustafa and Choong-koo Chang (2020-01-30), Cascading failure Prevention in Electrical Power Protection System of Nuclear Power Plant using IEC61850 , The Transactions of the Korean Institute of Electrical Engineers

 

2019

[15]Choong-koo Chang(2019-08-03), Factors Affecting Capacity Design of Lithium‐Ion Stationary Batteries, MDPI Batteries

[14]John Kweku Avor and Choong-koo Chang(2019-01-16), Reliability Anaysis of Application of Variable Frequency Drive on Condensate Pump in Nuclar Power Plant, Jouranl of International Council on Electrical Engineering

2018

[13]Choong-koo Chang and Mummuni Sulley(2018-11-01), Sizing of Lithium-ion Stationary Battery Capacity and Dimension for Nuclear Power Plants, Journal of Electrical Engineering & Technology
[12]Exavier Zakaria Barie and Choong-koo Chang(2018-10-15), Application of Variable Frequency Drive on the Condensated Pump Motors of APR 1400 Nuclear Power Plants for Energy Saving, Journal of International Council on Electrical Engineering
[11]Choong-koo Chang(2018-09-01), Mitigation of High Energy Arcing Faults(HEAF) in the Medium Voltage SWGR of Nuclear Power Plant, Nuclear Engineering and Technology

 

2017

[10]Dumam R. Jackson and Choong-koo Chang(2017-10-31), Solutions to Consider in Current Transformer Selection for APR1400 Nuclear Power Plant, Journal of Energy and Power Engineering

[09]Choong-koo Chang(2017-02-01), Analysis of Open-Phase Conditions in Korean Standard Nuclear Power Plants and Fault Detection Scheme, Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 

[08]Hamdy Samier Hamdy Abdelbadea and Choong-koo Chang(2017-01-31), Extended Battery to Cope with ELAP for APR1400, Journal of Energy and Power Engineering 11 (2017) 56-62

[07]Sang-Hyun Lee and Choong-koo Chang(2017-01-02), Separation of Transformers for Class 1E Systems in Nuclear Power Plants, Hindawi Publishing Corporation 

 

2015

[06]Choong-koo Chang(2015-12-9), A new MV Bus Transfer Scheme for Nuclear Power Plants, EPJ Nuclear Sci. Technol. EDP Sciences

[05]Choong-koo Chang(2015-12-2), Systems Engineer Program for Practical Nuclear Power Plant,Journal of the Korea Society of Systems Engineering 

[04]Choong-koo Chang(2015-11-20), Optimal Neutral Ground Resistor Rating of The Medium Voltage Systems in Power Generating Stations,Journal of International Council on Electrical Engineering

[03]Choong-koo Chang(2015-08-17), Application of Low Voltage High Resistance Grounding In Nuclear Power Plants,Nuclear Engineering and Technology 

[02]Choong-koo Chang(2015-07-31), NEQM (NFC Based Equipment Qualification Management) System, Journal of Energy and Power Engineering/ David publishing company.9 (2015) 622-631

[01]Choong-koo Chang(2015-03-01), Improving Motor Protection Using Thermal Model,The Transactions of the Korean Institute of Electrical Engineers Vol. 62, No. 2.

 

Conference Paper

[1] Choong-koo Chang(2012-11-16 to 2012-11-17), Study on the Earth Fault Protection for Low Voltage Circuit, Korean Institute of Electrical Engineers Fall Conference(Electrical Facility Work Group)     
[2] Choong-koo Chang(2013-10-31 to 2013-11-2), NFC Based Life Cycle Management System for Electrical Plant, Korean Institute of Electrical Engineers Fall Conference(Electrical Facility Work Group)     
[3] Choong-koo Chang(2013-10-24 to 2013-10-25), NFC based Inspection and Qualification Management (NIQM) System Preventing Counterfeit and Fraudulent Item , Transactions of the Korean Nuclear Society Autumn Meeting Gyeongju, Korea     
[4] Choong-koo Chang(2014-11-06 to 2014-11-08), Application of MV Bus Transfer Scheme in Generating Stations, Korean Institute of Electrical Engineers Autumn Conference Proceeding, Electrical Facility Work Group     
[5] Choong-koo Chang(2014-07-16 to 2014-07-18), Application of a Thermal Model for Medium Voltage Motor Protection,Korean Institute of Electrical Engineers Summer Conference Proceeding     
[6] Kim young-joo & Choong-koo Chang (2014-10-30 to 2014-10-31), Preparatory Work for a Scenario-Based Electricity Expansion Plan for North Korea after Hypothetical Reunification using WASP-IV,Transactions of the Korean Nuclear Society Autumn Meeting Gyeongju, Korea     
[7] Choong-koo Chang& kyoung jun Lee(2014-08-24 to 2014-08-28), NFC Based Equipment Qualification Management (NEQM) System preventing counterfeit and fraudulent item, The 19th Pacific Basin Nuclear Conference (PBNC 2014).     
[8] Choong-koo Chang(2014-10-26 to 2014-10-30), Improving Motor Protection Using Thermal Model, Conference of Electric Power Supply Industry (CEPSI 2014), Jeju     
[9] Choong-koo Chang(2014-06-15 to 2014-06-18), Optimal NGR (Neutral Ground Resistor) Rating of the Medium Voltage Systems in Power Generating Stations,The International Conference on Electrical Engineering (ICEE 2014), Jeju     
[10] Choong-koo Chang & Jae-cheon Jung, Aminata DIA(2015-10-13 to 2015-10-15), Systems Engineers Program (SEP) for Practical Nuclear Power Plant Engineering Education, 9th Asia-Pacific Conference on Systems Engineering (APCOSEC 2015) Seoul     
[11] Choong-koo Chang &  Aminata DIA(2015-10-13 to 2015-10-15), System Engineering Approach in the design of Electrical Auxiliary power system of Nuclear power plant, 9th Asia-Pacific Conference on Systems Engineering (APCOSEC 2015) Seoul     
[12] Choong-koo Chang(2015-05-03 to 2015-05-06), A New MV Bus Transfer Scheme for Nuclear Power Plants, Proceedings of ICAPP 2015 - Nice, Franc     
[13] Choong-koo Chang(2015-11-05 to 2015-11-07), Analysis of Open Phase Faults in Nuclear Power Plants and Countermeasures, Korean Institute of Electrical Engineers Fall Conference Proceeding, Electrical Facility Work Group     
[14] Choong-koo Chang(2015-07-15 to 2015-07-17), Systems Engineering Approach to Design of Electric Power Systems for Nuclear Power Plants, Korean Institute of Electrical Engineers Summer Conference Proceeding.     
[15] Choong-koo Chang(2015-11-06 ), The Short Circuit Fault Protection Coordination between Main and Secondary MV Switchboards in Plants, The Korean Institute of Illumination and Electrical Installation Engineers, Autumn Annual Conference & General Meeting 2015,     
[16] Choong-koo Chang & Mostafa Ahmed Fouad Hassan(2015-10-28 to 2015-10-30), Analysis for the Effects of Grid Voltage Degradation on APR1400 Operation, Transactions of the Korean Nuclear Society Autumn Meeting Gyeongju, Korea     
[17] Choong-koo Chang (2016-08-30 to 2016-09-02), Improvement of the Ground Fault Protection for the Preferred Power Supply Line of Nuclear Power Plants, 2016 Korea Electric Power Industry Code Conference, Presentation     
[18] Choong-koo Chang (2016-11-05 to 2016-11-07), Sizing of Lithium-ion Battery for Medium Voltage UPS, Korean Institute of Electrical Engineers Fall Conference Proceeding, Electrical System Work Group     
[19] Choong-koo Chang (2016-07-13 to 2016-07-15), Extension of Battery Backup Time to Cope with Extended Station Blackout(SBO), Korean Institute of Electrical Engineers Summer Conference Proceeding     
[20] Choong-koo Chang (2016-04-17 to 2016-04-21), Open-Phase Faults Studies on The Standard Nuclear Power Plants, International Congress on Advances in Nuclear Power Plants (ICAPP 2016), San Fransico     
[21] Choong-koo Chang (2017-07-12 to 2017-07-14),Voltage Support by Static Var Compensator in Nuclear Power Plants,Korean Institute of Electrical Engineers Summer Conference Proceeding     
[22] Choong-koo Chang (2017-04-24 to 2017-04-28), Lithium-Ion Backup Batteries for Coping Extended Loss of AC Power (ELAP),Proceedings of International Conference on Advanced Power Plants 2017, Fukui and Kyoto (Japan)     
[23] Choong-koo Chang & Exavier Zakaria Barie (2017-04-24 to 2017-04-28), Sizing of Lithium- ion Stationary Batteries for Nuclear Power Plant Use,Proceedings of International Conference on Advanced Power Plants 2017, Fukui and Kyoto (Japan)     
[24] Choong-koo Chang (2017-05-18 to 2017-05-19), CT Selection for the Medium Voltage Switchgears in Nuclear Power Plants,Transactions of the Korean Nuclear Society Spring Meeting Jeju,Korea.     
[25] Choong-koo Chang (2017-10-18 ), Mitigation of High Energy Arcing Faults (HEAF) in the Medium Voltage SWGR of Nuclear Power Plants, Advanced Power System Automation and Protection(APAP2017) Jeju     
[26] Choong-koo Chang (2017-10-26 ), Limiting Arc Exposure in the 480V Systems of Nuclear Power Plants,Transactions of the Korean Nuclear Society Autumn Meeting Gyeongju, Korea     
[27] Choong-koo Chang (2017-11-02 to 2017-11-04), Saturation Tolerance for the Protection and Measuring Common CT, Korean Institute of Electrical Engineers Fall Conference Proceeding, Electrical System Work Group     
[28] "Choong-koo Chang (2018-04-08 to 2017-04-11), Design Vulnerability of The Ground Fault Protection System For The Preferred Power Supply of NPPs, Proceedings of ICAPP 2018, Charlotte
 –Charlotte (USA)"     
[29] "Choong-koo Chang (2018-05-28 to 2018-05-31), Project Base Team Teaching and Team Learning in Practical Nuclear Power Plant Engineering Education, KINGS Specialization Program, International Conference on Human Resource Development for Nuclear Power Programmes: Meeting Challenges to Ensure the Future Nuclear Workforce Capability (Gyeongju, Republic of Korea)
 –Charlotte (USA)"     
[30] Choong-koo Chang (2018-06-24 to 2018-06-28 ), IEC 61850 Based Electrical Protection and Control System for Nuclear Power Plants, 24th International Conference on Electrical Engineering, Seoul     
[31] John K.Avor & Choong-koo Chang  (2018-06-24 to 2018-06-28 ), Reliability and Economic Analysis of Application of Variable Frequency Drive on Condensate Pump in Nuclear Power plant, 24th International Conference on Electrical Engineering, Seoul
[32] Young-shin Kong & Choong-koo Cahng(2018-07-11 to 2018-07-13), Application of IEC61850 on the Electric Power System of Nuclear Power Plant, 2018 Korea Institute of Electrical Engineers Summer Conference Proceeding, PeyongChang
[33] Samwel Opana, Choong-koo Chang and John Leweku Avor (2018-10-7~10), Hign Acuracy and Saturation Free Current Transformers for Medium Voltage Networks of Nuclear Power Plant, ICEMS Conference 2018_Jeju
[34] Choong-koo Chang, Samwel Opana (2018-10-25~25), IEC 61850 Compatible Electronic CTs for MV Networks in Nuclear Power Plants, Korea Nuclear Society Autumn Meeting, Yeosu
[35] Choong-koo Chang (2018-11-01~02), Cascading Failure in Medium Voltage network of a NPP and Counter Measures, KIEE Fall Conference 2018_Gwang-ju
[36] Choong-koo Chang (2019-04-25~27), Power Generating Station Auxiliary Power System Protection with IEC 61850 and Iot Technology, KIEE Spring Conference 2019_Jeju 
[37] Choong-koo Chang (2019-05-22~24),Blockchain for Configuration Management in Nuclear Power Plants, KNS Spring Conference 2019_Jeju 
[38] Choong-koo Chang (2019-07-02~06), Nuclear Power Plant Maintenance System with Blockchain based Event and Failure Reporting Functions, ICEE 2019 Conference _Hon Kong
[39] June Adhiambo Omole and Choong-koo Chang (2019-07-10~12), Factors Affecting the Sizing of Lithium-Ion Stationary Battery, KIEE Summer Conference 2019_Kosung
[40] Ko Jae-pil and Choong-koo Chang (2019-07-10~12), Assessment of Voltage Levels for Internationalization of APR 1400 NPP, KIEE Summer Conference 2019_Kosung
[41] Choong-koo Chang and Ogunola Rasheed Adeola (2020-07-08~10), Study on the Fuel Cell as an Standby AC Power Source of Nuclear Power Plants, KNS 2020 Spring Conference_Online
[42] Choong-koo Chang  and Thomas Tsuma Kalenga (2020-07-15~17), Countermeasures against Surge Absorber Failure and Ground Fault Relay Mafunction, KIEE Summer Conference_Busan
[43] Ogunola Rasheed Adeola and Choong-koo Chang (2020-07-15~17), Effect of Grid Voltage Degradation on the Generator Output Voltage of a Nuclear Power Plant in Nigeria, KIEE Summer Conference_Busan
[44] "Choong-koo Chang and Eratus Mwongela Musyoka (2020-10-22~24), Artificial Neural Network Based Approach for Compensation of Current Transformer Saturation Error Current Transformer Saturation Error, KIEE Autumn Conference_Jeju "
[45] Choong-koo Chang and Oladimeji Idris Adenji (2020-11-24~27), Autonomous Overcurrent Relay Protection Coordination by AI Technology,ICEMS2020 Conference_Online
[46] Choong-koo Chang and Eratus Mwongela Musyoka (2021-04-22~24), Online Monitoring of Surge Arresters  in the  MV Switchgear of Nucelar Power Plants, IEE Spring Conference_Jeju (and Onlie)
[47] Choong-koo Chang, Erastus Mwongela Musyoka and Jae-cheon Jung (2021-05-12~14), Design of Electrical Traing Facility for Human Perfomance Optimization, KNS Spring Conference_Online

 

 

Books

[1] Choong-koo Chang & Aminata (2016-Jan), Systems Engineering approach to NPP design, KINGS     
[2] Choong-koo Chang  (2016-Jan), Assessment of Alternatives to Batteries for Nuclear Power Plants, KINGS     
[3] Choong-koo Chang (2014-March), Application of Digital Protective Relays for Medium Voltage Motors in Nuclear Power Plants, KINGS     
 Choong-koo Chang and Co-authors (2013-Aug), Happy Telling, Storybook of Coaches (Vol.I&II), Moca Book     
 Choong-koo Chang and Co-authors (2009-April), Installation and Management of Disaster Protection System for Road Tunnel, Ministry of Land, Transfortation and Maritime Affairs    

Projects

Particpated in the following projects and performed electrical systems design as a project manager or system engineer:

2012

[24]Chang Chong-koo (2012.11-2013.2), Jamaica Independent Power plant design, Jamaica  

[23]Chang Chong-koo (2012.4-2013.2),Barakah Nuclear power plant detail design, KEPCO E&C 

2011

[22]Chang Chong-koo (2011.10-2013.2),Emal phase 2 combined cycle power plant detail design, Samsung E&C

[21]Chang Chong-koo (2011.1-2013.2), Yanbu 2 power and water project detail design, Han Wha E&C

[20]Chang Chong-koo (2011.9-2013.2), Oman Sur Independent Power Plant Detail Design, Dae Woo E&C

[19]Chang Chong-koo (2011.2-2013.2), Donghae Biomass Power Generation Plant Basic& Detail Design, POSCO E&C

2010

[18]Chang Chong-koo (2010.12-2011.9), Gyeongin Canal Basic Design Project, Saman Engineering

[17]Chang Chong-koo (2010.12-2011.9), Samsung Electronics Semiconductor Plant, S1-B Project , Consulting, Samsung Electronics

[16]Chang Chong-koo (2010.4-2010.12), Samsung Electronics Semiconductor Plant, M2-Fab Project, Consulting, Samsung Electronics

2009

[15]Chang Chong-koo  (2009.12-2013.2), Lotte Center Hanoi Construction, Consulting, Lotte E&C

[14]Chang Chong-koo (2009.11-2010.12),Turkey Eurasia Tunnel Basic Design, Consulting, SK E&C

[13]Chang Chong-koo (2009.7-2010.2), Four Major River Project Small Hydropower Plant Basic & Detail Design, Dae Woo E&C, Samsung Heavy Industries 

2008

[12]Chang Chong-koo (2008.11-2013.2), Lotte World Tower(123F) Construction Project, Electrical System Design Consulting, Lotte E&C

[11]Chang Chong-koo (2008.5-2009.12), Al Jalamid Power Plant & Main Substation Detail Design, Hyundai E&C

[10]Chang Chong-koo (2008.5-2010.3), NIPP Simple Cycle Power Plant Detail Design, Hyundai Engineering

[09]Chang Chong-koo (2008.5-2010.10), Asan Incinerator Plant Basic and Detail Design, Samsung E&C

[08]Chang Chong-koo (2008.2-2013.3), Busan RDF Power Plant Basic and Detail Design, POSCO E&C

[07]Chang Chong-koo (2008.11-2008.12), Design of Electrical System, for US Army Base II, SK E&C 

2003

[06]Chang Chong-koo (2003.4-2009.10), Sihwa Tidal Power Plant Basic and Detail Design, Dae Woo E&C

2002

[05]Chang Chong-koo (2002.1-2003.12), Hanul NPP Unit 5&6 Auxiliary Power System Design Project, Manpower Management, KEPCO E&C

~2000
[04]Chang Chong-koo (1992.8-1993.2), Hanul NPP Unit 3&4 Auxiliary Power System Design, KEPCO

[03]Chang Chong-koo (1988.7-1993.2), Hanbit NPP Unit 3&4 Auxiliary Power System Design, KEPCO 

[02]Chang Chong-koo (1986.8-1988.6), Hanbit NPP Unit 3&4 and UCN 1&2 Security System Design, KEPCO

[01]Chang Chong-koo, (1985.3-1985.11), Hanul NPP Unit 1&2 Auxiliary Building Design, KEPCO

 

Galleries

Visiting of Alumni Mr. Raouf, Egypt(2018.7.3)
  • 2019 test2
Visiting Hyundai Electric, Ulsan(2018.7.20)
  • 2019 test2
Special Lecture by Prof. Han Ki-in(2018.6.19)
  • 2019 test2
Meeting with Alumni, Barakha, UAE(2017.9.11)
  • 2019 test2
ICAPP 2017, Kyoto, Japan(2017.4.26)
  • 2019 test2
Commencement Ceremony(2017.1.20)
  • 2019 test2
Special Lecture, Dr. Kim Il-dong(2016.7.8)
  • 2019 test2
Busan City Tour(2016.10.22)
  • 2019 test2
KINGS Festival(2016.10.20)
  • 2019 test2
Visiting KEPCO E&C, Gimcheon(2015.10.29)
  • 2019 test2
Visiting Hyosung Hevy Industries, Changwon(2015.7.15)
  • 2019 test2
Visiting KINS, Daejeon(2015.5.13)
  • 2019 test2
Visiting YPP Technology(2014.06.05)
  • 2019 test2
Visiting KPX, Seoul(2014.4.29)
  • 2019 test2
Visiting Shin Kori 3 Site(2014.4.15)
  • 2019 test2
Visiting KEEI, Seoul(2013.8.16)
  • 2019 test2
Home Stay in Prof. Chang's Home(2013.8.12)
  • 2019 test2
Visiting KEPCO E&C, Bundang(2013.08.12)
  • 2019 test2