具有多控制器的电力系统可靠镇定

Reliable stabilization of class of power systems with multiple controllers

研究了具有多控制器的电力系统可靠镇定问题,以保证某个控制器出现故障后系统的稳定性.首先将具有多控制器的系统可靠镇定转化成保证系统联结稳定的重叠分散控制问题,然后利用大系统包含原理和线性矩阵不等式(LMI)算法设计电力系统的多个控制器.把此方法应用到一个电力系统模型中,设计它的两个控制器.对两个控制器同时存在以及任何一个因故障而被切除的情况分别进行了仿真,结果表明了该方法的有效性.

The reliable stabilization problem is discussed for a class of power systems with multiple controllers to guarantee the stability of the system after failures occur in some controllers.First,reliable stabilization of a system using multiple controllers is transformed into an overlapping decentralized control that can guarantees the connective stability of the system.Subsequently,multiple controllers are designed for the power system by means of the inclusion principle and the LMI algorithm.The method is applied to a model of power system where two controllers have been designed.The model is simulated when the two controllers exist simultaneously or one of them is cut off because of failures.The simulation results show effectiveness of the approach.