1000 kV特高压变压器调压原理及其仿真分析

Regulation-compensation Principle and Simulation Analysis in 1000 kV UHV Transformer

1000 kV特高压南阳站是我国特高压交流示范工程,特高压变压器是特高压变电站内的重要设备。变电站内2台不同厂家生产的变压器分别采用完全补偿和非完全补偿的调压方式。文中介绍了2台不同原理变压器的绕组连接方式及调压原理,分别建立了调压补偿原理的Simulink仿真模型,并通过变压器电压仿真数据证实了仿真模型的正确性,最后对2台主变的中低压侧电压进行了对比分析,并根据对比结果针对特高压电网建设提出建议,以期为后期特高压建设提供参考。

1000 kV UHV Nanyang substation is a UHV AC demonstration substation engineering project in our country. The UHV transformer is an important equipment in the substation. There are two transformers, which were produced by different companies, using fully compensated and non-fully compensated regulation-compensation principle. The winding connection method and regulation-compensation principle of the two transformers are introduced. The Simulink simulation models of the two transformers are established. The simulation data of the voltage of the transformer confirms the correctness of the simulation model. Finally, some suggestions on the construction of UHV are put forward according to the comparison results, which provide reference for the construction of UHV at later stage.