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基于模糊神经网络的火电厂热控系统故障诊断方法

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火电厂热控系统运行是由众多组件配合实现的,故障诊断难度较大,为此提出基于模糊神经网络的火电厂热控系统故障诊断方法.从火电厂热控系统自身构成和运行属性的角度出发,结合模糊控制与 5 层等价型BP神经网,构建了火电厂热控系统模糊神经网络模型.在模型内进行火电厂热控系统运行状态变量的前向传播和误差的反向传播,实现对火电厂热控系统的故障诊断.测试结果表明,该设计方法对设置的 7 种不同类型火电厂热控系统故障状态均实现了准确诊断.
Fuzzy Neural Network-based Fault Diagnosis for Thermal Control System of Thermal Power Plant Based on Fuzzy Neural Network
The operation of thermal control systems in thermal power plants is achieved through the cooperation of numer-ous components,making fault diagnosis difficult.Therefore,a fuzzy neural network-based fault diagnosis method was proposed.From the perspective of composition and operational attributes of the thermal control system in thermal power plants,a fuzzy neural network model for thermal control system in thermal power plants was constructed by combining fuzzy control with a 5-layer equivalent BP neural network.Forward propagation of operating state variables and back prop-agation of errors were carried out within the model to achieve fault diagnosis.The test results indicate that the designed method has achieved accurate diagnosis of the fault states of seven different types of thermal control systems in thermal power plants.

fuzzy neural networkthermal control system of thermal power plantfault diagnosisfuzzy control5-layer equivalent BP neural networkoperating state variable

杨雄毅、张小亮、高广洲、于昌明

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国能神华九江发电有限责任公司,江西 九江 332504

国能丰城发电有限公司,江西 丰城 331100

秦皇岛华电测控设备有限公司,河北 秦皇岛 066000

模糊神经网络 火电厂热控系统 故障诊断 模糊控制 5层等价型BP神经网 运行状态变量

2024

电工技术
重庆西南信息有限公司(原科技部西南信息中心)

电工技术

影响因子:0.177
ISSN:1002-1388
年,卷(期):2024.(6)
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