小型风力发电系统最大功率控制扰动法及状态平均建模与分析  

DISTURBANCE INJECTION METHOD OF MAXIMUM POWER CONTROL AND STATE AVERAGING METHOD-BASED MODELING AND ANALYSIS FOR SMALL SCALE WIND POWER GENERATING SYSTEM

作　　者：王生铁[1] 张润和[1] 田立欣[1] 

机构地区：[1]内蒙古工业大学信息工程学院,呼和浩特010062

出　　处：《太阳能学报》2006年第8期828-834,共7页Acta Energiae Solaris Sinica

基　　金：内蒙古自然科学基金项目(200408020807)

摘　　要：为简化结构、降低成本、提高可靠性及实现系统优化运行,提出了包含永磁同步发电机、二极管整流桥及斩波器的小型风力发电系统结构,采用扰动法来实现最大功率控制,利用状态平均法对系统进行建模,导出了相应的静态特性及线性化模型,给出了扰动幅值及频率这两个关键参数的选取原则,通过实验验证了控制策略及分析方法的正确性和可行性。为最大功率控制扰动法在小型风力发电系统中的应用提供了理论依据,具有重要的理论意义及实际应用价值。A new architecture of small scale wind power generation system（SSWPGS）, which contains permanent magnet synchronous generator, rectifying bridge with diodes and chopper, was suggested for simple structure, low cost, high reliability and optimal operation. Disturbance injection method was used to implement the maximum power control. State averaging method was used to model the system, and its static state characteristics and linearization model as well as the choosing principle of two crucial parameters of disturbance magnitude dm and angular frequency co were given. Experiment results show that the maximum power control and theoretical analysis are correct and practical. Results obtained in the paper lay the foundation for the application of disturbance injection method for maximum power control to SSWPGS, and it Ires theoretical significance and practical value in engineering.

关 键 词：风力发电 最大功率控制 扰动法 状态平均建模 斩波器 

分 类 号：TK8[动力工程及工程热物理—流体机械及工程] TP273[自动化与计算机技术—检测技术与自动化装置]