开关磁阻发电系统非线性建模及故障仿真研究

在开关磁阻电机非线性电感模型的基础之上,利用Matlab中的电力系统工具箱(PSB)建立了一个四相8/6极开关磁阻发电系统(SRG)完整的非线性模型,仿真结果验证了该模型的适用性.通过对模型施加不同的故障条件,仿真了系统在电枢绕组故障,功率变换器故障以及负载短路故障等多种故障情况下的电压,电流输出波形,并与相关文献的分析结果进行了横向比较.仿真结果表明,开关磁阻发电系统具有较高的容错能力.所提出的故障建模方法及仿真结果对开关磁阻发电系统的故障诊断及容错研究有一定的参考价值.

Study on Nonlinear Modeling and Fault Simulation of Switched Reluctance Generator System

According to the nonlinear inductance model of switched reluctance machine (SRM), a complete nonlinear simulation model of a four phase 8/6 poles switched reluctance generator (SRG) system was built using Matlab/Simulink/PSB toolbox, and the simulation results validate the applicability of the model. On the basis of this model, several fault conditions such as phase windings fault, converter switch fault, load fault, prime motor fault and so on were simulated; the simulation results including output voltage and phase current were presented and compared with the analytic results in correlative literatures. The simulation results indicate that the SRG system has better fault-tolerant capability. The modeling method and simulation results of fault have certain reference value to fault diagnosis and fault-tolerant research of switched reluctance generator systems.