scholarly journals Partitioning approach for large wind farms: Active power control for optimizing power reserve

2018 ◽  
Author(s):  
Sara Siniscalchi-Minna ◽  
Carlos Ocampo-Martinez ◽  
Fernando D. Bianchi ◽  
Mikel De-Prada-Gil ◽  
Bart De-Schutter
Keyword(s):  
Power Control ◽  
Wind Farms ◽  
Active Power ◽  
Active Power Control ◽  
Large Wind

Comparison of two control strategies for VSC-MTDC with wind farm

2021 ◽  
Vol 14 ◽  
Author(s):  
Congshan Li ◽  
Pu Zhong ◽  
Ping He ◽  
Yan Liu ◽  
Yan Fang ◽  
...  
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Voltage Stability ◽  
Wind Farm ◽  
Control Strategies ◽  
Wind Farms ◽  
Active Power ◽  
Stable Operation ◽  
Active Power Control ◽  
Dc Voltage

: Two VSC-MTDC control strategies with different combinations of controllers are proposed to eliminate transient fluctuations in the DC voltage stability, resulting from a power imbalance in a VSC-MTDC connected to wind farms. First, an analysis is performed of a topological model of a VSC converter station and a VSC-MTDC, as well as of a mathematical model of a wind turbine. Then, the principles and characteristics of DC voltage slope control, constant active power control, and inner loop current control used in the VSC-MTDC are introduced. Finally, the PSCAD/EMTDC platform is used to establish an electromagnetic transient model of a wind farm connected to a parallel three-terminal VSC-HVDC. An analysis is performed for three cases of single-phase grounding faults on the rectifier and inverter sides of a converter station and of the withdrawal of the converter station on the rectifier side. Next, the fault response characteristics of VSC-MTDC are compared and analyzed. The simulation results verify the effectiveness of the two control strategies, both of which enable the system to maintain DC voltage stability and active power balance in the event of a fault. Background: The use of a VSC-MTDC to connect wind power to the grid has attracted considerable attention in recent years. A suitable VSC-MTDC control method can enable the stable operation of a power grid. Objective: The study aims to eliminate transient fluctuations in the DC voltage stability resulting from a power imbalance in a VSC-MTDC connected to a wind farm. Method: First, the topological structure and a model of a three-terminal VSC-HVDC system connected to wind farms are studied. Second, an analysis is performed of the outer loop DC voltage slope control, constant active power control and inner loop current control of the converter station of a VSC-MTDC. Two different control strategies are proposed for the parallel three-terminal VSC-HVDC system: the first is DC voltage slope control for the rectifier station and constant active power control for the inverter station, and the second is DC voltage slope control for the inverter station and constant active power for the rectifier station. Finally, a parallel three-terminal VSC-HVDC model is built based on the PSCAD/EMTDC platform and used to verify the accuracy and effectiveness of the proposed control strategy. Results: The results of simulation analysis of the faults on the rectifier and inverter sides of the system show that both strategies can restore the system to the stable operation. The effectiveness of the proposed control strategy is thus verified. Conclusion: The control strategy proposed in this paper provides a technical reference for designing a VSC-MTDC system for wind farms.

scholarly journals Wind tunnel validation of a closed loop active power control for wind farms

2018 ◽  
Vol 1037 ◽  
pp. 032020 ◽  
Author(s):  
V Petrović ◽  
J Schottler ◽  
I Neunaber ◽  
M Hölling ◽  
M Kühn
Keyword(s):  
Wind Tunnel ◽  
Power Control ◽  
Closed Loop ◽  
Wind Farms ◽  
Active Power ◽  
Active Power Control

Active Power Control Strategy with Auxiliary Frequency Regulation Function of Wind Farms

2014 ◽  
Vol 536-537 ◽  
pp. 1257-1260
Author(s):  
Guan Qi Liu ◽  
Li Na Wu
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Power Plants ◽  
Operation Mode ◽  
Wind Farms ◽  
Active Power ◽  
Normal Operation ◽  
Frequency Regulation ◽  
Active Power Control ◽  
System Frequency

The fluctuations and uncertainties of wind power increase the frequency regulation pressure of conventional power plants. This paper introduces an active power control strategy with auxiliary frequency regulation function of wind farms. With this active power control strategy, wind farms can work in normal operation mode or in auxiliary regulation mode. Wind farms in normal operation mode can trace the power command to the utmost extent. When the system frequency drops large, to respond this change, the wind farms can switch to auxiliary regulation mode automatically. Simulation results show that the wind farms can assist the conventional power plants to regulate the system frequency effectively.

scholarly journals Active Power Control for Wind Farms Based on MPC Combined with State Classification

2017 ◽  
Vol 50 (1) ◽  
pp. 2137-2144 ◽  
Author(s):  
Miao Liu ◽  
Jianxiao Zou ◽  
Chao Peng ◽  
Yucen Xie ◽  
Mingwei Li
Keyword(s):  
Power Control ◽  
Wind Farms ◽  
Active Power ◽  
Active Power Control ◽  
State Classification

scholarly journals Active Power Control of Waked Wind Farms: Compensation of Turbine Saturation and Thrust Force Balance

2021 ◽  
Author(s):  
Jean Gonzalez Silva ◽  
Bart Doekemeijer ◽  
Riccardo Ferrari ◽  
Jan-Willem van Wingerden
Keyword(s):  
Power Control ◽  
Thrust Force ◽  
Wind Farms ◽  
Active Power ◽  
Force Balance ◽  
Active Power Control
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