An optimal active power control method of wind farm using power prediction information

2012 ◽  
Author(s):  
Ning Chen ◽  
Qi Wang ◽  
Yi Tang ◽  
Lingzhi Zhu ◽  
Fubao Wu ◽  
...  
Keyword(s):  
Power Control ◽  
Wind Farm ◽  
Control Method ◽  
Active Power ◽  
Power Prediction ◽  
Active Power Control

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 A constrained model predictive wind farm controller providing active power control: an LES study

2018 ◽  
Vol 1037 ◽  
pp. 032023 ◽  
Author(s):  
Sjoerd Boersma ◽  
Vahab Rostampour ◽  
Bart Doekemeijer ◽  
Will van Geest ◽  
Jan-Willem van Wingerden
Keyword(s):  
Power Control ◽  
Wind Farm ◽  
Active Power ◽  
Active Power Control ◽  
Constrained Model

scholarly journals A non-centralized predictive control strategy for wind farm active power control: A wake-based partitioning approach

2020 ◽  
Vol 150 ◽  
pp. 656-669
Author(s):  
Sara Siniscalchi-Minna ◽  
Fernando D. Bianchi ◽  
Carlos Ocampo-Martinez ◽  
Jose Luis Domínguez-García ◽  
Bart De Schutter
Keyword(s):  
Power Control ◽  
Predictive Control ◽  
Control Strategy ◽  
Wind Farm ◽  
Active Power ◽  
Active Power Control

scholarly journals Adaptive Multi-Model Switching Predictive Active Power Control Scheme for Wind Generator System

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1329 ◽  
Author(s):  
Hongwei Li ◽  
Kaide Ren ◽  
Shuaibing Li ◽  
Haiying Dong
Keyword(s):  
Power Generation ◽  
Model Predictive Control ◽  
Power Control ◽  
Wind Power ◽  
Predictive Control ◽  
Control Method ◽  
Measured Data ◽  
Active Power ◽  
Wind Power Generation ◽  
Active Power Control

To deal with the randomness and uncertainty of the wind power generation process, this paper proposes the use of the clustering method to complement the multi-model predictive control algorithm for active power control. Firstly, the fuzzy clustering algorithm is adopted to classify actual measured data; then, the forgetting factor recursive least square method is used to establish the multi-model of the system as the prediction model. Secondly, the model predictive controller is designed to use the measured wind speed as disturbance, the pitch angle as the control variable, and the active power as the output. Finally, the parameters and measured data of wind generators in operation in Western China are adopted for simulation and verification. Compared to the single model prediction control method, the adaptive multi-model predictive control method can yield a much higher prediction accuracy, which can significantly eliminate the instability in the process of wind power generation.

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