直驱永磁同步风力发电系统并网运行控制策略研究  

Research on the grid-connected operation control strategy of direct-drive permanent magnet synchronous wind power system

作　　者：孟鹂 Meng Li(Xi’an University,Xi’an 710065,China)

机构地区：[1]西安文理学院,西安710065

出　　处：《国外电子测量技术》2020年第9期25-30,共6页Foreign Electronic Measurement Technology

基　　金：西安市科技计划(2019KJWL27);陕西省教育厅专项科研计划(19JK0744)项目资助。

摘　　要：随着全球范围内能源危机的日益严峻,世界主要国家已经将能源的获取方式从传统的化石型能源向新能源方式进行转变,风能是一种储量巨大的清洁环保型能源,并且具有无限再生性。在风力发电系统中,直驱永磁同步电机是重要组成部分,具有结构简单、可靠性高、控制策略成熟等优点。基于直驱永磁同步电机,对其数学模型进行了推导;对发电机侧和电网侧的变流器进行了控制策略的研究。基于数学模型和控制策略在MATLAB\Simulink环境下搭建了仿真模型。经过仿真验证,该控制策略能够实现对发电机输出有功功率的精准控制,对并网侧有功功率和无功功率的解耦调节,以及直流母线侧的稳定控制,其控制策略与传统的控制策略相比鲁棒性更优,动态响应调节速度更快。With the growing global energy crisis,the world′s major countries have transformed energy access from traditional fossil energy to new energy,wind energy is a huge reserve of clean and environmentally friendly energy,and has unlimited regenerative properties.In wind power systems,direct-drive permanent magnet synchronous motors are an important component,with advantages such as simple structure,high reliability and mature control strategies.In this paper,the mathematical model is derived based on a direct-drive permanent magnet synchronous motor;the control strategy for the generator-side and grid-side converters is investigated.Simulation models based on mathematical models and control strategies are built in MATLAB\Simulink environment.After simulation,the control strategy can achieve accurate control of active power output,decoupling of active power and reactive power on the grid side,and stable control on the DC bus side,with better robustness and faster dynamic response adjustment than the traditional control strategy.

关 键 词：永磁同步 风力发电 并网 

分 类 号：TM76[电气工程—电力系统及自动化]