介绍了二级电压控制的主要原理 ,提出了划分控制区域、选择先导节点和控制发电机的新方法 ;同时设计了一种新的动态二级电压控制器。以 EPRI— 36节点系统为例进行仿真计算 ,结果表明 :在电压失稳的过程中 ,二级电压控制可以从区域电压稳定的角度出发 ,协调本区域内各电压 /无功支持源的无功出力 ,改善区域电压水平和提高系统电压稳定性 The main principle of the secondary voltage control is introduced. A new method of dividing the control area, selecting the leading node and controlling the generator is proposed. At the same time, a new dynamic two-stage voltage controller is designed. Taking the EPRI-36 node system as an example, the simulation results show that in the process of voltage instability, the secondary voltage control can coordinate the voltage reactive / reactive power source reactive power in the region from the perspective of regional voltage stability Efforts to improve regional voltage levels and improve system voltage stability