摘要
针对不对称半桥功率变换器的主开关器件较多的缺点,提出开关磁阻发电机(SRG)他励模式下的简易功率变换器控制。给出并分析简易功率变换器的主电路结构,建立相应的SRG他励发电数学模型,分析能量转换和发电效率,与不对称半桥功率变换器相比,其每相只需一个主开关器件,降低了成本,能在SRG停转时对负载供电,且在一定条件下能提高发电效率。对基于简易功率变换器的SRG他励发电系统进行了仿真和实验,仿真和实验结果表明系统能够稳定运行,发电质量好,验证了该方法的可行性和简单性,具有一定工程应用价值。
Aiming at the problem of asymmetric half-bridge power converter＇ s more main switching devices, the simple power converter control of independent-excited switched reluctance generators was proposed. The main circuit of simple power converter was presented and analyzed. The mathematical model of independent-excited switched reluctance generators was established, and energy conversion and generating efficiency were analyzed. Compared with asymmetric half-bridge power converter, simple power converter with on master switch for each phase could reduce the cost, and feed the load when SRG is not working. Furthermore, the generating efficiency could be improved under certain conditions. The simulation and experiment were implemented for switched reluctance generating system based on simple power converter. The simulation and experiment results show that the system can work stably, and generating quality is good. The feasibility and simplicity of the method proposed are approved. It is worth to promote the method in engineering application.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2012年第8期1334-1341,共8页
Acta Energiae Solaris Sinica
基金
湖南省教育厅项目(11C1201)
湖南省自科联合基金重点项目(11JJ8004)
关键词
开关磁阻发电机
不对称半桥功率变换器
简易功率变换器
他励
发电效率
switched reluctance generators
asymmetric half-bridge power converter
simple power converter
independent-excitation
generating efficiency
