统一潮流控制器的智能解耦与结构设计研究

INTELLIGENT DECOUPLING OF UPFC CONTROLLER AND ITS STRUCTURAL DESIGN

文章在分析统一潮流控制器(UPFC)使用的传统比例-积分(PI)控制器及线性最优控制和智能预估控制方法控制过程本质的基础上,指出使用PI控制UPFC时存在的一些问题,提出一种比例-积分-微分(PID)控制与智能解耦过程相结合的控制器结构,并给出相应的控制策略。在仿真结果的基础上,指出应根据控制过程中的主要目标和次要目标分阶段有针对性地控制系统,达到快速稳定控制系统潮流的目的。

On the basis of analyzing the essence of the traditional PI controller used in UPFC control and that of the linear optimal control and intelligent presstimating control, some problems existing in the UPFC controlled by PI controller are pointed out and a controller structure in which the PID control is combined with intelligent decoupling is proposed and corresponding control strategy is given. Based on the simulation results, it is pointed out that the control of the power system should be performed purposively and by stages according to the primary target and the secondary target to achieve the goal of controlling power flows quickly and steadily.