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.
出处
《水电能源科学》
北大核心
2012年第6期191-193,186,共4页
Water Resources and Power
