摘要
为研究十二相整流同步发电机在整流元件故障工况下的运行性能,针对不可控整流桥提出了适用于故障情况的二极管通断判别方法。基于电路拓扑理论建立了十二相整流同步发电机系统模型,对单个二极管开路的故障工况进行分析,表明单个二极管开路对直流侧供电品质产生影响,并能得出直流电压与负载大小的数值关系。通过样机仿真结果与试验结果的对比分析,证明了所提分析方法的有效性,为判断多相整流同步发电机二极管开路故障时容错运行的可行性提供理论依据与实用措施。
To study the fault operation performance of a 12-phase synchronous generator system with the rectifier load,a method of identifying on-off condition of diodes in fault state is proposed by considering the uncontrolled rectifier bridge, and a model for a 12-phase synchronous generator-rectifier-load system is established based on the circuit topology theory. The influence of the single-diode-open fault on DC power supply quality is discussed byfault-operation analysis,from which the numerical relation between the DC voltage and the load is obtained. The presented method is verified to be valid by comparing the simulation results with the experiment resultsfor a model machine,which provides theoretic foundation and effective measures for analyzing fault-tolerant feasibility of multi-phase rectifier generators under diode-open fault condition.
出处
《电工技术学报》
EI
CSCD
北大核心
2017年第3期157-163,共7页
Transactions of China Electrotechnical Society
基金
国家自然科学基金面上项目(51377086
51677092)
国家自然科学基金青年基金项目(51407192)资助
