一种基于模糊监督协调控制的保护装置测试方法

摘要

机车保护装置种类繁多,测试时需要提供各种波形的大电流,且要求电流具有特定的脉动,现有的测试设备已难以满足测试与故障诊断要求.针对测试对象多样、时变,常规控制方法难以实现的状况,提出基于模糊监督协调控制的系统控制策略.设计自适应PID相位控制器对恒流或曲线模式下的相位进行控制,配合神经网络控制器在线学习,实现准确快速的控制.测试系统的实际投入使用与专家技术鉴定表明,该方法有效地提高了测试效率与准确性.%There are various kinds of protection devices in electric locomotive,and a wide range of high-current waveform with small ripple and fluctuation which is needed when testing.Existing test equipments are difficult to meet the requirements of testing and fault diagnosis.For the testing plants are varied,time-varying,and conventional control methods are hard to be realized,this paper presented a control strategy based on fuzzy supervisory coordination control.It designed adaptive PID phase controller in the mode of fluctuate current or constant-current,and online learning of the parameters by network controller to achieve fast and accurate control.The actual use of the test system with expert technical evaluation verifies its efficiency and accuracy.