观测线性化追踪目标励磁控制

LINEARIZATION THROUGH OBSERVATION AND TRACKING OBJECTIVE EXCITATION CONTROL

利用同步相量测量单元（ＰＭＵ）测量电压相位角，通过相位角的在线追踪观测，实现状态方程式的线性化，在这种理论的基础上提出了追踪目标励磁控制（ＴＯＥＣ）。仿真结果表明：在提高系统稳定极限和改善系统动态特性方面ＴＯＥＣ均优于线性最优励磁控制（ＬＯＥＣ），ＴＯＥＣ不仅可以实现电力系统闭环线性化控制。

Principle of tracking objective excitation control(TOEC) based on the theory of Linearization through observation(LTO)is presented in this paper. The simulation results show that TOEC is superior to linear optimal excitation control(LOEC)in both enhancing power system stability and improving power system dynamic quality. Meanwhile TOEC has the ability to force operation state into a desired objective.