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Journal of System Simulation

Abstract

Abstract: Aiming at the problem of frequency fluctuation of wind power generation connected to microgrid, a frequency coordinated control strategy based on model predictive control (MPC) is proposed. In this strategy, the wind turbine and plug-in hybrid electric vehicle (PHEV) are included in the frequency control system. The pitch angle of the fan and the charge and discharge of PHEV are controlled to adjust the grid frequency and supplement the frequency modulation resources of microgrid. WTG pitch angle control system and PHEV power control system are modeled, and their control principles are described. In order to prevent excessive use of PHEV in the process of frequency modulation, the model predictive control (MPC) theory is introduced, and two independent MPC controllers are designed to control the pitch angle and the power output of PHEV respectively. The effectiveness of the proposed strategy is verified on MATLAB / simulink platform. The results show that the proposed strategy can effectively reduce the frequency deviation of microgrid and the amount of PHEV in large microgrid, and has faster response characteristics than the traditional PID control.

First Page

581

Revised Date

2020-08-21

Last Page

590

CLC

TP391

Recommended Citation

Zhang Kunping, Hao Lin. Frequency Coordinated Control Strategy of Microgrid Based on Fuzzy Prediction[J]. Journal of System Simulation, 2021, 33(3): 581-590.

DOI

10.16182/j.issn1004731x.joss.20-0298

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