Overall-wind-speed Dynamic Sliding Mode Power Control for Direct-driven PMSG-based Wind Energy Generation System

Authors

Aihua Wu, 1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China;;2. School of Mechanical Engineering, Nantong University, Nantong 226019, China;
Buhui Zhao, 1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China;;
Jingfeng Mao, 2. School of Mechanical Engineering, Nantong University, Nantong 226019, China;

Abstract

Abstract: A novel dynamic sliding mode control (DSMC) strategy for direct-driven PMSG system was proposed to improve wind energy generation efficiency in overall-wind-speed operating condition. Based on the multi-stage working characteristics, optimum torque control method was adopted to implement the MPPT task when wind speed was under the rating value, and power control method was adopted to implement the constant power generation task when wind speed was above the rating value. The controller was designed by the sliding mode reaching law method of power exponent function. Due to the switch function amplitude feedback, the switch gain was granted the capability of automatic adjust with tracking error. The tracking response time was shorten while the overshoot was effectively suppressed. The DSMC law involved a first-order integral process of the control input signal, which could make the actual PMSG control current continuously and smoothly. The integral process contributed greatly to weaken chattering. Simulation results demonstrate the effectiveness of the proposed DSMC strategy.

Recommended Citation

Wu, Aihua; Zhao, Buhui; and Mao, Jingfeng (2020) "Overall-wind-speed Dynamic Sliding Mode Power Control for Direct-driven PMSG-based Wind Energy Generation System," Journal of System Simulation: Vol. 28: Iss. 1, Article 14.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss1/14

First Page

99

Revised Date

2015-01-14

DOI Link

https://doi.org/

Last Page

105

CLC

TM614;TP273

Recommended Citation

Wu Aihua, Zhao Buhui, Mao Jingfeng. Overall-wind-speed Dynamic Sliding Mode Power Control for Direct-driven PMSG-based Wind Energy Generation System[J]. Journal of System Simulation, 2016, 28(1): 99-105.