Explanipedia

Analysis and Enhancement of HQT and ENTSO-E Synthetic Inertia Criteria Using the Unison U151 Wind Turbine Open

Yong Cheol Kang, Kicheol Kang, Young‐Sun Lee, Kyu‐Ho Kim · 2025

Synthetic inertia (SI) enables wind turbine generators (WTGs) to support frequency stability by releasing stored kinetic energy during disturbances. Existing grid-code requirements, such as those of Hydro-Québec TransÉnergie (HQT) and ENTS…

Artificial Intelligence Based Electricity Payment Reminder and Control System and Method Open

Juan Kong, Yangmin Li, Zhaoguo He, Yong Cheol Kang · 2025

The traditional electricity payment reminder adopts the “manual+SMS” method, and the reminder staff cannot optimize the reminder strategy according to the customer’s service needs and payment habits, and can only passively execute the trad…

Intelligent Layout and Routing of Power Electronic Converters: A Technical Review and Cutting-Edge Exploration Open

Yi Shang, Yu Chen, Hanwen Chen, Zhisen Zhu, Yong Cheol Kang · 2025

Power electronic converters are key components in modern power systems. Due to the special characteristics such as processing power flow and operating in switching mode, the layout and routing of power electronic converters are still mainl…

First-principles study of sodium adsorption on defective graphene under propylene carbonate electrolyte conditions Open

Chol Ryu, Song-Bom Rim, Yong Cheol Kang, Chol‐Jun Yu · 2023

First-principles simulations of Na cluster adsorption on defective graphene sheets under propylene carbonate conditions have been performed within joint density functional theory for revealing the mechanism of hard carbon for sodium-ion ba…

Autonomous Frequency Regulation Using Battery Energy Storage Systems of EV Charging Station Open

Changwoo Yoon, Ngoc-Duc Nguyen, Yong Cheol Kang, Young Il Lee · 2023

Increasing penetration of replenished renewable energy sources (RES) to the power grid is inevitable and brings stability challenges to traditional electric power systems (EPS). One of them is the frequency fluctuation due to the high part…

Development of a Digital Healthcare Management System for Lower-Extremity Amputees: A Pilot Study Open

Jin Hong Kim, Yu Ri Kim, Mi Hyang Han, Jee‐Young Lee, Ji Sung Kim , et al. · 2022

The research, which was designed as a “pre- and post-single group” study, included patients with lower-limb amputation and aimed to evaluate the effectiveness of self-directed physical-strength training and cardiovascular exercise using a …

A Stress-Relieved Method Based on Bottom Pattern Design Considering Thermal and Mechanical Behavior of DBC Substrate Open

Chi Zhang, Cai Chen, Yi Zhang, Yiyang Yan, Yong Cheol Kang · 2022

Currently, stress analysis on direct bonded copper (DBC) is mainly based on a model with symmetrical top and bottom copper layers. These analyses provide thermal-mechanical stress-relieving methods at the outer edge of the copper-ceramic i…

Autonomous Frequency Regulation of a Grid-Following Converter Powered by Battery Energy Storage System Open

Changwoo Yoon, Young-Il Lee, Yong Cheol Kang · 2022

This paper deals with an Autonomous Frequency Regulation (AFR) of a grid-following (GFL) converter powered by a Battery Energy Storage System(BESS). It deals with the frequency stabilization function of a small-sized BESS system that will …

Transient Stability Analysis of Grid-Connected Converter Driven by Imbalance Power under Non-Severe Remote Voltage Sag Open

Xuli Quan, Xinchun Lin, Yun Zheng, Yong Cheol Kang · 2021

In the transient process of the grid-connected converter (GCC), the existing research mainly focuses on the impact of the control loops. Little attention is paid to the transient stability issues driven by the imbalance between the input p…

Study on Stability Control Strategy Based on Island Micro-Grid of Small Nuclear Power Plants Open

Bo Jiang, Zhong Zhang, Xintao Xie, Yong Cheol Kang · 2020

For the island microgrid with limited load capacity, especially after the nuclear power generator set is connected, it is very important to control the grid safely and stably. This paper is aimed at the island micro-grid after the nuclear …

Frequency Stability Support of a DFIG to Improve the Settling Frequency Open

Jae Ik Yoo, Yong Cheol Kang, Eduard Muljadi, Kyu‐Ho Kim, Jung-Wook Park · 2020

To ensure the frequency stability of a power grid, the settling frequency following a frequency event should be stabilized within the maximum steady-state frequency deviation (SSFD) band. If the frequency is stabilized at a value beyond th…

Issue Information Open

Nima Amjady, B. Chitti Babu, Tomislav Capuder, Erik Delarue, Suryanarayana Doolla , et al. · 2018

Issue Information Open

Nima Amjady, Tomislav Capuder, Erik Delarue, Suryanarayana Doolla, José António , et al. · 2018

Design, Evaluation and Implementation of an Islanding Detection Method for a Micro-grid Open

Taiying Zheng, Huan Yang, Rongxiang Zhao, Yong Cheol Kang, Vladimir Terzija · 2018

Correct and fast detection of a micro-grid (MG) islanding is essential to the MG since operation, control, and protection of the MG depend on its operating mode i.e., an interconnected mode or islanding mode. This study describes the desig…

Issue Information Open

Nima Amjady, Tomislav Capuder, Erik Delarue, Suryanarayana Doolla, José António , et al. · 2018

Adaptive Gain-based Stable Power Smoothing of a DFIG Open

Eduard Muljadi, Hyewon Lee, Min Hwang, Jinsik Lee, Hong Ju Jung , et al. · 2017

In a power system that has a high wind penetration, the output power fluctuation of a large-scale wind turbine generator (WTG) caused by the varying wind speed increases the maximum frequency deviation, which is an important metric to asse…

Issue Information Open

Badrul Chowdhury, Chongqing Kang, Luigi Alberti, Nima Amjady, Tomislav Capuder , et al. · 2017

Issue Information Open

Badrul Chowdhury, Chongqing Kang, Luigi Alberti, Nima Amjady, Tomislav Capuder , et al. · 2017

Impedance-Based Stability Analysis in Grid Interconnection Impact Study Owing to the Increased Adoption of Converter-Interfaced Generators Open

Youngho Cho, Kyeon Hur, Yong Cheol Kang, Eduard Muljadi · 2017

This study investigates the emerging harmonic stability concerns to be addressed by grid planners in generation interconnection studies, owing to the increased adoption of renewable energy resources connected to the grid via power electron…

Flexible IQ–V Scheme of a DFIG for Rapid Voltage Regulation of a Wind Power Plant Open

Jinho Kim, Eduard Muljadi, Jung-Wook Park, Yong Cheol Kang · 2017

This paper proposes a flexible reactive current-to-voltage (I_Q-V) scheme of a doubly-fed induction generator (DFIG) for the rapid voltage regulation of a wind power plant (WPP). In the proposed scheme, the WPP controller dispatc…

Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation Open

Hye-Won Lee, Min Hwang, Eduard Muljadi, Poul Ejnar Sørensen, Yong Cheol Kang · 2017

In an electric power grid that has a high penetration level of wind, the power fluctuation of a large-scale wind power plant (WPP) caused by varying wind speeds deteriorates the system frequency regulation. This paper proposes a power-smoo…

Assessment of system frequency support effect of PMSG-WTG using torque-limit-based inertial control Open

Xiao Wang, Wenzhong Gao, Jianhui Wang, Ziping Wu, Weihang Yan , et al. · 2016

To release the 'hidden inertia' of variable-speed wind turbines for temporary frequency support, a method of torque-limit-based inertial control is proposed in this paper. This method aims to improve the frequency support capability consid…

A Framework to Analyze the Stochastic Harmonics and Resonance of Wind Energy Grid Interconnection Open

Youngho Cho, Choongman Lee, Kyeon Hur, Yong Cheol Kang, Eduard Muljadi , et al. · 2016

This paper addresses a modeling and analysis methodology for investigating the stochastic harmonics and resonance concerns of wind power plants (WPPs). Wideband harmonics from modern wind turbines (WTs) are observed to be stochastic, assoc…

Frequency support of PMSG-WTG based on improved inertial control Open

Ziping Wu, X. Wang, Wei Gao, Moses Kang, Min Hwang , et al. · 2016

With increasing integrations of large-scale systems based on permanent magnet synchronous generator wind turbine generators (PMSG-WTGs), the overall inertial response of a power system will tend to deteriorate as a result of the decoupling…

Improved inertial control for permanent magnet synchronous generator wind turbine generators Open

Ziping Wu, Wenzhong Gao, Xiao Wang, Moses Kang, Min Hwang , et al. · 2016

With increasing integrations of large‐scale systems based on permanent magnet synchronous generator wind turbine generators (PMSG‐WTGs), the overall inertial response of a power system will tend to deteriorate as a result of the decoupling…

Stable Short-Term Frequency Support Using Adaptive Gains for a DFIG-Based Wind Power Plant Open

Jinsik Lee, Gilsoo Jang, Eduard Muljadi, Frede Blaabjerg, Zhe Chen , et al. · 2016

For the fixed-gain inertial control of wind power plants (WPPs), a large gain setting provides a large contribution to supporting system frequency control, but it may cause over-deceleration for a wind turbine generator that has a small am…

Stepwise inertial control of a wind turbine generator to minimize a second frequency dip Open

Dejian Yang, Jinsik Lee, Yong Cheol Kang · 2016

Wind turbine generators (WTGs) in power systems with high wind penetration levels are encouraged or forced to participate in frequency control. A stepwise inertial control (SIC) scheme instantly increases WTG output to arrest the frequency…

Transient voltage control of a DFIG-based wind power plant for suppressing overvoltage using a reactive current reduction loop Open

Geon Park, Jinho Kim, Yong Cheol Kang · 2016

This paper proposes a transient voltage control scheme of a doubly fed induction generator (DFIG)-based wind power plant (WPP) using a reactive current reduction loop to suppress the overvoltage at a point of interconnection (POI) and DFIG…

Voltage Control for a Wind Power Plant Based on the Available Reactive Current of a DFIG and Its Impacts on the Point of Interconnection Open

Yasir Usman, Jinho Kim, Eduard Muljadi, Yong Cheol Kang · 2016

Wake effects cause wind turbine generators (WTGs) within a wind power plant (WPP) to produce different levels of active power and subsequent reactive power capabilities. Further, the impedance between a WTG and the point of interconnection…

Coordinated control for low voltage ride-through of a PMSG-based wind power plant Open

Khagendra Bahadur Thapa, Jinho Kim, Yong Cheol Kang · 2016

Wind turbine generators should be kept connected to a power grid, while supporting the voltage recovery in the case of a grid fault to meet low voltage ride-through requirement in some grid codes. This paper proposes a coordinated control …

Yong Cheol Kang YOU? Author Swipe