Results 41 to 50 of about 210 (74)

Study of Resistive-Type Superconducting Fault Current Limiters for a Hybrid High Voltage Direct Current System. [PDF]

Materials (Basel), 2018
Chen L, He H, Li G, Chen H, Wang L, Chen X, Tian X, Xu Y, Ren L, Tang Y.   +9 more
europepmc   +1 more source

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VDCOL link optimization of HVDC system based on improved genetic algorithm

2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT), 2022
The fault of the receiving-end AC power grid of the high voltage direct current (HVDC) transmission system may cause the HVDC subsequent commutation failures.
Yongyong Jia, Dajiang Wang, Xinyao Zhu   +2 more
exaly   +3 more sources

Research on Transient Stability Domain Estimation of VDCOL Control of HVDC System Based on Polynomial Lyapunov Function

2023 IEEE 7th Conference on Energy Internet and Energy System Integration (EI2), 2023
In current modern power system, high voltage direct current (HVDC) transmission is crucial, the stable operation of HVDC has become a prerequisite for the power system's stability.
Bingtuan Gao
exaly   +3 more sources

Parameters Optimization of MMC-MTDC Piecewise Variable Rate VDCOL for Power Grid Transient Stability Improvement

2021 International Conference on Power System Technology (POWERCON), 2021
ZhangBei modular multilevel converter based MTDC (MMC-MTDC) project is the first MTDC with 500 kilovolt voltage level in China. In order to solve the possible overcurrent caused by AC fault, piecewise variable rate voltage dependent current order limiter
Huang Xifang, Yuan Zheng, Wang Yu, Zi Peng, Zhu Ling, Liu Fusuo   +5 more
exaly   +3 more sources

An Interactive Control Strategy of STATCOM and VDCOL for Suppressing Weak Receiving Commutation Failure of HVDC

2021 IEEE 4th International Electrical and Energy Conference (CIEEC), 2021
In order to reduce the probability of commutation failure in HVDC weak receiving system, and improve the recovery characteristics of the DC system after a fault, an interactive control strategy of STATCOM and VDCOL (Voltage Dependent Current Order Limiter) was proposed.
Chao Xing, Xinze Xi, Xin He, Zhi Xu, Shengnan Li, Chuan Xiang   +5 more
exaly   +3 more sources

VDCOL parameters setting influenced by reactive power characteristics of HVDC system

2016 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE), 2016
Voltage dependent current order limiter (VDCOL) can limit the HVDC current in low voltage and reduce the reactive power requirement, which helps power system quickly restore stability. Thus, the reasonable setting of VDCOL control parameters is vital to improve the recovery characteristics of system.
Chuang Fu
exaly   +4 more sources

The Influence of VDCOL Parameters on the Recovery Characteristic after Commutation Failures of HVDC Links Fed into Weak AC Systems

2022 4th International Conference on Power and Energy Technology (ICPET), 2022
The faults occurred in the receiving terminal AC system of an HVDC transmission link may cause commutation failures of the inverters. When the receiving AC system is weak, the AC/DC system may be difficult to restore to a stable operation state due to ...
Jiale Hong, Liang Qin
exaly   +3 more sources

A VDCOL Improvement Strategy for CLCC with Improved Inputs

2024 The 9th International Conference on Power and Renewable Energy (ICPRE)
The high voltage direct current (HVDC) transmission technology based on controllable line commutated converter (CLCC) avoids the problem of conventional DC phase commutation failure and provides a brand new way for HVDC transmission to the grid.
Dezhen Zhang, Yuyao Feng, Xuejun Xiong   +2 more
exaly   +3 more sources

Research on HVDC system parameter domain based on VDCOL dynamic characteristic optimization

2024 4th International Conference on Electrical Engineering and Control Science (IC2ECS)
During commutation failure(CF), the transient reactive power characteristics of the HVDC system are closely related to the Voltage Dependent Current Order Limiter (VDCOL) control parameters.
Tianshu Wang, Feifan Wang, Xin Qian, Tong Wang   +3 more
exaly   +3 more sources

Mitigating Commutation Failures in High-Voltage DC Transmission Systems with a Logistic Function-Based AC/DC-VDCOL Switchover Control

2023 International Conference on Power System Technology (PowerCon), 2023
This research aims to enhance the stability and reliability of high-voltage DC transmission systems. An analysis of the control effects of two input methods (AC voltage and DC voltage) in the VDCOL module was conducted, and an improved logistic function ...
Shuqing Zhang, Xianfa Hu
exaly   +3 more sources