无轴承开关磁阻全周期发电机输出功率的建模与优化控制  

Modeling and Optimal Control of the Output Power of Full-Period Bearingless Switched Reluctance Generator

作　　者：庄铮[1] 邓智泉[1] 曹鑫[1] 赵丽丹[1] 

机构地区：[1]南京航空航天大学自动化学院电气工程系,南京210016

出　　处：《电工技术学报》2012年第7期41-48,共8页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(50877036);国家自然科学基金青年科学基金(51107056);高等学校博士学科点专项科研基金(20060287010);航空基础科学基金(05F52040)资助项目

摘　　要：针对12/8极无轴承开关磁阻全周期发电机(FPBSRG),从两套绕组的电压方程出发,推导了发电电流的分段解析式,基于此建立了发电机在励磁区间的输出功率的数学模型,并分析不同励磁区域对输出功率的影响;基于不同的励磁条件,分析了励磁区间对发电机续流阶段输出功率的影响;提出了励磁区间的优化方法,以实现FPBSRG输出功率的优化控制。试验结果表明了理论分析的正确性。Based on a 12/8 full-period bearingless switched reluctance generator （FPBSRG）, the expression of the generating current is derived under different excitation regions according to the equations of the two windings. Accordingly, the mathematical model of the output power is built in the excitation region. Then, the influences of the excitation region on the output power in the excitation period and freewheeling period are analyzed. Finally, the method of selecting the optimized excitation region is proposed. In the guide of the theory, a series of experiments are carried out. The results show that the proposed method is effective when the generator＇s shaft is levitated.

关 键 词：无轴承开关磁阻发电机 全周期 开关角 输出功率 

分 类 号：TM301[电气工程—电机]