【摘要】 建立了带有TCR的单机无穷大系统的非线性状态方程,用以简化和模拟实际电力系统。在此基础上运用状态反馈精确线性化方法将上述系统精确线性化,并得出了TCR的非线性控制规律。为了验证控制策略的正确性,借助ARENE数字仿真软件予以实现。结果分析表明由于该方法考虑了电力系统的非线性特性,可以动态补偿输电系统中的无功功率并同时起到稳定电压的作用,并且在负载发生变化时仍能保证其有效性。更多还原

【Abstract】 Reactive power compensation in power system is used to compensate reactive power of basic wave. Since both compensation equipment and power system take on nonlinear character, exact linearization via state feedback method is an efficacious way to get good performances in the reactive power compensation. Nonlinear state equation of single machine infinite bus system with TCR is established to simplify and simulate real power system. Based on above method and state equation, nonlinear control strategy of TCR reactive power compensation is presented. To testify validity of control strategy, digital simulation software ARENE is applied. Results analysis show that this control strategy is effective to compensate reactive power and stabilize system voltage. Moreover, considering the nonlinear character of power system, such a control strategy is effective despite the variable system load.更多还原