【摘要】 将概率神经网络引入到电力变压器的故障诊断中,并提出了利用模糊数学的知识对神经网络输入进行预处理的方法。采用改良的三比值方法来实现故障诊断,建立了基于模糊输入的神经网络故障诊断模型。通过对神经网络模型的实例训练及仿真,证明了此方法有较好的收敛性,提高了故障诊断的有效性和准确性。更多还原

【Abstract】 Probabilistic Neural Network is used in fault diagnosis of power transformer. A method using fuzzy math theory to deal with the data of the neural network input is proposed.Fault diagnosis of power transformer based on improved three ratio method is realized. And a fault diagnosis model of neural network based on fuzzy input is constituted. The simulation diagnosis demonstrates the effectiveness, astringency and veracity of the proposed algorithm.更多还原