Commissioning of UHV SCSR Control Strategy

The 1000kV line stepped controllable shunt reactor was the first application of the UHV project, installed on the Zhangjiakou side of the Jiading line I of the Zhangbei-Xiongan project. The control strategy of SCSR was divided into three layers, namely the inner layer, the outer layer and the outermost layer. It was a difficult problem to implement the strategy in the system debugging to verify whether the controllable high-resistance can act accurately under this strategy. This paper expounds the principle of the three-layer control strategy of SCSR, performs calculations under system debugging conditions, and obtains the verification method during system commissioning, and the debugging is successfully carried out. This article finally got that the verification method described can verify the three-layer control strategy, and the controllable high-resistance action is correct. The commission provides a guarantee for the safe operation of the project.