静态混成自动电压控制的研究

Static hybrid automatic voltage control systems

将混成控制系统理念引入电力系统的静态电压控制,提出了静态混成自动电压控制系统.首先,建立了分层分级的静态电压控制系统模型并设计了系统运行流程.其次,定义了安全性事件和经济性事件的发生机制,利用离散事件驱动高层控制,形成的控制目标再下发至各对应的控制模块,从而实现复合指标控制,该系统降低了优化问题求解难度,提高了运算效率,具有较高的可实现性.而且,该控制系统充分适应电力系统连续-离散相耦合的特点,协调各种电压控制设备.计算机仿真研究表明,该控制系统可以提高电网的电压安全性和电压质量,合理分配无功,同时减少网络损耗.

The concept of Hybrid Power Control System is introduced to the power systems＇ voltage control, and the static hybrid automatic voltage control（HAVC） system is established in the paper. Firstly, a new hybrid hierarchical voltage control system model based on the hybrid theory is proposed, and the operating process is designed. Secondly, the stability event and the economic event are defined to drive the system, through which one can achieve the synthetic objects of safety, stability and economy. Moreover, the system provides a much easier access to achieve optimal automatic voltage control, which is highly feasible in practice. The system＇s controlled targets, which are driven and decoupled by discrete events, are dispatched to different modules of sub-layer, so that the calculations become more efficient with higher realizability. Finally, computer simulation results are given to show the validity of the system and the designed approaches.