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换流站交流滤波器用以滤除换流器产生的谐波,并补偿换流器运行中吸收的无功功率。为了保护交流滤波器中的电抗器和电阻器设备,需要配置适当的避雷器。根据工程规范书要求,用最恶劣的运行条件计算了±660kV宁东-山东直流输电工程交流滤波器电容、电抗、电阻等元件和避雷器的暂态电压、电流情况,确定了避雷器的配置参数及各元件设备的绝缘水平。结果表明:通过合理的配置避雷器,可以将大部分元件端子的操作冲击耐受水平限制在350kV以下,能够有效地降低工程造价。提供的数据为±660kV宁东-山东直流输电工程交流滤波器设备的设计和制造提供了重要的依据。
Converter AC filter to filter out the harmonics generated by the converter, and compensate for inverter operation of reactive power absorbed. In order to protect the reactor and resistor devices in the AC filter, an appropriate lightning arrester needs to be configured. According to the requirements of the project specification, the transient voltage and current of AC filter capacitor, reactance, resistance and other components and arrester of ± 660kV Ningdong-Shandong direct transmission project were calculated with the worst operating conditions and the configuration parameters of arrester and The insulation level of each component equipment. The results show that the reasonable operation surge arrester can limit the operational impact tolerance of most component terminals below 350 kV, which can effectively reduce the construction cost. The data provided is ± 660kV Ning Dong - Shandong HVDC transmission filter design and manufacture of equipment provided an important basis.