状态相关Riccati法和低通滤波器的励磁控制器设计  

Design of Excitation Controller Based on SERE and Low-pass Filter

作　　者：于紫南[1] 薛文博 费玉琢 文静[3] 

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012 [2]辽宁大唐国际庄河核电有限责任公司,辽宁庄河116400 [3]吉林省电力有限公司培训中心,吉林长春130000

出　　处：《水电能源科学》2012年第6期191-193,186,共4页Water Resources and Power

摘　　要：针对原有控制器无法实时反映系统状态变化的情况,根据单机无穷大系统模型推导了以机端电压、转速和电磁功率偏差为状态变量的线性时变模型,建立了含有状态量的线性相关Riccati方程,通过判定、求解得到对应的时变最优解,为保证全局的稳定性,加入低通滤波器滤除部分奇异解,在Matlab\Simulink中搭建了单机无穷大系统,仿真结果验证了该方法的有效性。The original controller can not reflect the real-time state change of the system.According to the model of single machine infinite bus system,the linear time-varying model is deduced by taking terminal voltage,rotational speed and electromagnetic power deviation as state variables.The linear state-dependent Riccati equation is established.The corresponding time-varying optimal solutions are obtained by judging the system and solving the model.For ensuring the global stability,low-pass filter is added to filter out the singular solutions.Finally,the single machine infinite bus system is established on the Matlab／／Simulink platform.The simulation results verify the effectiveness of the proposed method.

关 键 词：线性时变模型 状态相关Riccati方程 低通滤波器 单机无穷大系统 

分 类 号：TM751[电气工程—电力系统及自动化]