直驱永磁风力发电机侧最大功率追踪滑模控制研究进展  

Recent Developments in Maximum Power Point Tracking in Direct-Driven Permanent Magnet Synchronous Generator Based on Generator Side of Wind Energy Systems Via Sliding Mode Control

作　　者：林立[1,5,6] 何洋 周建华 万炳呈[3] 陈鸿蔚 LIN Li;HE Yang;ZHOU Jianhua;WAN Bincheng;CHEN Hongwei(Hunan Provincial Key Laboratory of Grids Operation and Control on Multi-Power Sources Area(Shaoyang University), Shaoyang 422000, China;School of Information Engineering, Shaoyang University, Shaoyang 422000,China;Naiwei CNC Technology Co., Ltd. of Hunan Province Hunan, Changsha 410000, China;Xiangtan ElectricalMachinery Group Co. Ltd., Xiangtan 411100, China)

机构地区：[1]多电源地区电网运行与控制湖南省重点实验室(邵阳学院),湖南邵阳422000 [2]邵阳学院信息工程学院,湖南邵阳422000 [3]湖南省耐为数控技术有限公司,长沙410000 [4]湘潭电机集团有限公司,湖南湘潭411100 [5]上海大学 [6]邵阳学院

出　　处：《大电机技术》2019年第3期10-16,共7页Large Electric Machine and Hydraulic Turbine

基　　金：湖南省教育厅计划重点项目(NO.16A191);湖南省科技计划项目(NO.2016TP1023)

摘　　要：本文针对提高直驱永磁风力发电机侧效率及未建模动态性能问题,介绍了直驱永磁风力发电机侧最大功率跟踪滑模控制研究进展。首先,分析线性滑模、一阶线性滑模、积分滑模与终端滑模4类控制策略的原理、存在的问题以及研究现状。其次,针对快速非奇异终端滑模控制的“抖振”及控制精度问题,对现有趋近律方法、观测器方法、模糊方法的消抖原理及效果进行阐述。最后,得出变增益、变速、变指数趋近快速非奇异终端滑模控制是最优的“消抖”策略。通过对非连续项进行连续平滑处理和引入合适的在线自调整因子可有效消除“抖振”,并提高控制精度。对于系统远离平衡点时的情况,仍有待进一步深入研究。Aiming at high performances and unmodeled dynamics of direct-driven permanent magnet synchronous generator wind energy capturing, recent developments in direct-driven permanent magnet synchronous wind generator maximum power point tracking via sliding mode control was researched. Firstly, aim to strategy of direct-driven permanent magnet synchronous wind generator maximum power point tracking via sliding mode control, principle and problem of linear sliding mode, first-order linear sliding mode control, integral sliding mode, terminal sliding mode were analyzed and summarized. Secondly, with chattering problem and control precision of Fast-nonsingular Terminal Sliding Mode Control, principle and performance at eliminating chattering by using current reaching law, observations and fuzzy sliding mode control were analyzed and compared. Finally, propose fast-nonsingular terminal sliding mode control with variable gain variable speed index reaching law is strategy which has best performance, chattering phenomenon can be eliminated by using strategy of making non-continuous continuously and smoothly, control precision can be improved by using appropriate online self-tuning factor, but circumstances which has large system error will become a urgent research problem.

关 键 词：直驱永磁风力发电机组 最大功率跟踪 滑模控制 快速非奇异终端滑模控制 

分 类 号：TM614[电气工程—电力系统及自动化]