永磁直驱风力发电系统内模解耦控制研究  

Study on the Internal Model Decoupling Control Strategy of Direct-driven Wind Power System

作　　者：李永亮[1] 

机构地区：[1]中国矿业大学信息与电气工程学院

出　　处：《变频器世界》2012年第12期55-57,62,共4页The World of Inverters

摘　　要：针对永磁直驱风力发电系统中传统解耦策略易受系统参数变化的影响、对负载变化的适应能力差和抗干扰能力弱等缺点,本文将内模解耦控制引入双三电平永磁直驱风力发电系统网侧和机侧控制系统,并对机侧内模控制器的设计进行了详细的介绍。仿真实验结果表明电流内环采用内模解耦控制后,可有效抑制干扰及模型失配对输出的影响,克服传统的PI控制不能动态解耦以及对电机参数敏感的问题,并增强对给定信号的跟踪能力。As the traditional decoupling system strategy in three-level permanent magnet direct drive wind power system is vulnerable to system parameter change, insufficient adaptability to load changes, weak anti-interference ability and other defects, in this paper, the internal model decoupling control is utilized in three level of permanent magnet direct driving wind power generation system grid side and machine side control systems and the design of internal model controller of machine side were introduced in detail. The design in this paper overcomes the difficulty that traditional PI control can＇t decouple dynamically and is sensitive to motor parameters. Simulation results show that when stator current takes this internal model decoupling control strategy, influence from interference and model mismatch is efficiently resisted, and tracking ability to given signal is also enhanced.

关 键 词：三电平 永磁直驱 风力发电 内模解耦控制 

分 类 号：TM614[电气工程—电力系统及自动化]