小型开关磁阻风电系统优化仿真研究  

Simulation Study on Small Switched Reluctance Wind-Power Generation System

作　　者：李卫平[1] 彭寒梅[2] 易灵芝[2] 

机构地区：[1]惠州学院电子科学系,广东惠州516001 [2]湘潭大学信息工程学院,湖南湘潭411105

出　　处：《计算机仿真》2012年第2期336-340,357,共6页Computer Simulation

基　　金：国家自然科学基金(50977080);湖南省自然科学基金项目(08JJ6029)

摘　　要：研究风力发电系统优化问题,传统小型风力发电存在发电率低,稳定性差的缺陷。为解决上述问题,提出开关磁阻风力发电系统,开关磁阻发电机发出的直流电不经蓄电池,可直接由增加的两级式逆变器逆变成交流电,以减轻蓄电池的负担,优化发电系统。为简化逆变器的控制,开关磁阻发电机采用电压反馈控制以稳定输出电压,采用开关磁阻发电机非线性数学模型,给出其总体控制框图,分析两级式逆变器主电路拓扑结构及选取重要元件参数,建立由开关磁阻发电机和两级式逆变器组成的子系统模型,仿真结果表明,子系统静动态性能好,得到的交流电质量较好,并验证了方法的可行性,为优化风力发电提供了科学依据。Aiming at the problem of traditional small wind - power generation system, the paper proposed switched reluctance wind - power generation system. DC output voltage of switched reluctance generator was directly inverted into AC by two - stage inverter, which could reduce the burden of the battery and optimize the generation system. In order to simplify the control of the inverter, the voltage feedback control was carried out to stabilize the DC output voltage of switched reluctance generator. The nonlinear mathematics model and the overall control of switched reluctance generator were presented. The main circuit topology of two - stage inverter and the parameters of important devices were presented. The simulation model of subsystem made of switched reluctance generator and two - stage inverter was established. Simulation results show that static and dynamic performances of the subsystem are better, and the quality of AC output is good. It demonstrates the feasibility and easy controllability of the method.

关 键 词：小型风力发电 开关磁阻发电机 两级式逆变器 电压反馈控制 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]