Simulated annealing particle swarm algorithm-based MOA aging online monitoring method

An aging situation of an MOA is represented by utilizing change of electrical parameters in an MOA aging process; the change situations of the parameters are obtained by using a simple method; and themethod can overcome the influence of external environment factors and power network factors. The method has the beneficial effects that a resistive current component in a total leakage current does not need to be extracted; the temperature of the MOA does not need to be monitored; a leakage current of the MOA only needs to be collected; and the parameters capable of reflecting the aging situationof the MOA are solved by utilizing an SA-PSO algorithm. The method has the characteristics of simplicity, easy realization, high monitoring precision and the like, and can bring huge social and economic benefits. 本发明利用MOA老化过程中电气参数的变化来表征其老化情况，并且使用简单的方法获得这些参数的变化情况，且该方法能够克服外部环境因素及电网因素带来的影响。有益效果：该方法既不需要提取总泄漏电流中的阻性电流成分，也不需要监测MOA的温度，只需要采集MOA的泄漏电流，利用SA-PSO算法求解能够反映MOA老化情况的参数即可。该方法具有简单易实现，监测精度高等特点，能够带来巨大的社会和经济效益。