scholarly journals A VSG-Based Coordinated DC Voltage Control for VSC-HVDC to Participate in Frequency Regulation

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2712
Author(s):  
Tianwen Zheng ◽  
Laijun Chen ◽  
Yan Guo ◽  
Wei Wei ◽  
Bo Zhou ◽  
...  
Keyword(s):  
Control Strategy ◽  
Short Circuit ◽  
Voltage Control ◽  
Synchronous Generator ◽  
Rate Of Change ◽  
Frequency Regulation ◽  
Voltage Control Strategy ◽  
Dc Voltage ◽  
Tuning Method ◽  
Dc Voltage Control

In this paper, a coordinated DC voltage control strategy is proposed based on the VSG (virtual synchronous generator) method for the VSC-HVDC transmission system to participate in the frequency regulation of the connected weak grid. The voltage and power control capability of the VSC-HVDC is explored to attenuate the rate of change of frequency and to diminish the deviation of frequency. This is realized by the coordinated control of DC voltages at both the sending and the receiving ends with the VSG method. A small-signal model is established to investigate the dynamics of the control system. A tuning method for the selection of control parameters is also discussed in detail. The validity and superiority of the proposed control strategy are tested in the scenarios of sudden load changes and short circuit faults.

DC voltage control strategy of chain star STATCOM with second‐order harmonic suppression

2016 ◽  
Vol 9 (14) ◽  
pp. 2645-2653 ◽  
Author(s):  
Yingjie Wang ◽  
Yushuo Chai ◽  
Jianbo Tang ◽  
Xibo Yuan ◽  
Chenyang Xia
Keyword(s):  
Control Strategy ◽  
Voltage Control ◽  
Second Order ◽  
Harmonic Suppression ◽  
Voltage Control Strategy ◽  
Dc Voltage ◽  
Dc Voltage Control

DC voltage control strategy for a five-level converter

2000 ◽  
Vol 15 (3) ◽  
pp. 508-515 ◽  
Author(s):  
T. Ishida ◽  
K. Matsuse ◽  
K. Sugita ◽  
Lipei Huang ◽  
K. Sasagawa
Keyword(s):  
Control Strategy ◽  
Voltage Control ◽  
Voltage Control Strategy ◽  
Dc Voltage ◽  
Dc Voltage Control ◽  
Level Converter

scholarly journals Application of Multipoint DC Voltage Control in VSC-MTDC System

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Yang Xi ◽  
Ai Qian ◽  
Huang Jiantao ◽  
An Yiran
Keyword(s):  
Control Strategy ◽  
Wind Farm ◽  
Power Transmission ◽  
Voltage Control ◽  
Stability Control ◽  
Control Mode ◽  
Voltage Source ◽  
Voltage Control Strategy ◽  
Dc Voltage ◽  
Dc Voltage Control

The voltage-source-converter- (VSC-) based multiterminal VSC-HVDC power transmission system (VSC-MTDC) is an ideal approach to connect wind farm with power grid. Analyzing the characteristics of doubly fed induction generators as well as the basic principle and the control strategy of VSC-MTDC, a multiterminal DC voltage control strategy suitable for wind farm connected with VSC-MTDC is proposed. By use of PSCAD/EMTDC, the proposed control strategy is simulated, and simulation results show that using the proposed control strategy the conversion between constant power control mode and constant DC voltage control mode can be automatically implemented; thus the DC voltage stability control and reliable power output of wind farm can be ensured after the fault-caused outage of converter station controlled by constant DC voltage and under other faults. The simulation result shows that the model can fulfill multiterminal power transmission and fast response control.

scholarly journals Output DC Voltage Control Strategy for Switched Reluctance Generator

2012 ◽  
pp. 457-462
Author(s):  
G.P. Viajante ◽  
D.A. Andrade ◽  
A. W. F. V. Silveira ◽  
M.A.A. Freitas ◽  
L.C. Gomes ◽  
...  
Keyword(s):  
Control Strategy ◽  
Voltage Control ◽  
Voltage Control Strategy ◽  
Switched Reluctance ◽  
Dc Voltage ◽  
Dc Voltage Control
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