Insulation state monitoring method and device for capacitor bank

The invention discloses a capacitor bank insulation state monitoring method and device, and the method comprises the steps: obtaining a circuit structure of a to-be-monitored capacitor bank, carrying out the three-phase circuit modeling according to the circuit structure, generating a capacitor bank...

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Hauptverfasser: SHANG GUODONG, KONG LINGMING
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a capacitor bank insulation state monitoring method and device, and the method comprises the steps: obtaining a circuit structure of a to-be-monitored capacitor bank, carrying out the three-phase circuit modeling according to the circuit structure, generating a capacitor bank model, and carrying out the insulation state simulation through the capacitor bank model, when scheduling data sent by an external terminal is received, determining a corresponding equivalent capacitance multiplying power according to the monitoring current ratio and the scheduling data, and judging whether the insulation state of the capacitor bank to be monitored is abnormal according to the equivalent capacitance multiplying power and a preset state threshold range; therefore, the monitoring cost is effectively reduced on the basis of ensuring the monitoring accuracy of the insulation state. 本发明公开了一种电容器组的绝缘状态监测方法和装置,方法包括通过获取待监测电容器组的电路结构,并按照电路结构进行三相电路建模,生成电容器组模型采用电容器组模型进行绝缘状态模拟,生成监测电流比值当接收到外部终端发送的调度数据时,根据监测电流比值与