Results 51 to 60 of about 246 (86)

Limit cycles caused by interactions between HVDC links and non-linear controllers of synchronous generators

open access: yes
Limitadores estáticos ou dinâmicos podem atuar durante perturbações em Sistemas Elétricos de Potência (SEPs). Um equipamento usualmente dotado de limitadores dinâmicos é o elo de transmissão em corrente contínua (ou HVDC, High Voltage Direct Current).
Rios, Manuel Leonardo Sosa
core   +1 more source

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

open access: yesMaterials (Basel), 2018
Chen L   +9 more
europepmc   +1 more source

VDCOL parameters setting influenced by reactive power characteristics of HVDC system

open access: yes2016 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.
Yaoguo Li   +3 more
exaly   +5 more sources

Study on HVDC commutation failure and voltage compensated variable slope VDCOL control

open access: yes2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018
In this paper, through the analysis of HVDC commutation failure mechanism, the influence of commutation voltage reduction on commutation failure is studied. Based on this, a method which can restrain commutation failure and subsequent commutation failure
Sichao Wang
exaly   +4 more sources

Study of An Adaptive Fuzzy VDCOL Control Strategy for Coordinated Recovery of Multi-feed-in HVDC System

open access: yes2010 Asia-Pacific Power and Energy Engineering Conference, 2010
An adaptive fuzzy voltage dependent current order limiter (VDCOL) to enhance the performance of a multi-feed-in HVDC system is proposed in this paper. The adaptive fuzzy VDCOL exports an adaptive current order through fuzzy rules which need one point's voltage of HVDC transmission line and its derivative to time.
Xiaoyan Zhou, Tianqi Liu, Xingyuan Li
exaly   +4 more sources

VDCOL parameters design of multi-infeed HVDC based on a simplified model of DC P-Q coupling recovery

open access: yes2014 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2014
When several high voltage direct current (HVDC) systems simultaneously recover after severe faults, absorbing large amounts of reactive power from the receiving AC systems, presents new challenges for the transient voltage stability of multi-infeed HVDC (MIDC) systems.
Zhaobin Du
exaly   +4 more sources

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.
Xinyao Zhu, Yongyong Jia, Yuqiao Jia
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.
Jiayu Bian
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
Xi-Fang Huang   +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 ...
Chao Xing   +5 more
exaly   +3 more sources

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