随着电力数据信息网络的发展,为了提高控制系统的灵活性和可靠性,二级电压实时控制系统的控制信息和数据可以逐步发展到在基于TCP/IP的标准数据网络上传输。基于网络传输的闭环控制系统设计必须考虑信息传输延迟的影响。根据二级电压控制的基本原理,建立了考虑网络传输延迟的二级电压控制模型,设计了基于多步预测和延迟补偿的二级电压控制器,以保证控制系统在网络环境下具有良好的控制性能和稳定性。以新英格兰39节点系统为例进行数字仿真,验证了这种基于网络通信的新型二级电压控制器的性能和效果。 With the development of power data information network, in order to improve the flexibility and reliability of the control system, the control information and data of the two-level voltage real-time control system can be gradually developed to be transmitted on the standard data network based on TCP / IP. The design of closed-loop control system based on network transmission must consider the influence of information transmission delay. According to the basic principle of secondary voltage control, a secondary voltage control model considering network transmission delay is established and a secondary voltage controller based on multi-step prediction and delay compensation is designed to ensure that the control system has good control in the network environment Performance and stability. Taking the New England 39-node system as an example, the performance and effectiveness of this new two-stage voltage controller based on network communication are verified.