The method of outputting a quantized feedback control based on the wide area power system

Wide output power of a quantitative method based on a feedback control system, the following steps: 1) In the wide area measurement system which, by the PMU collection of information is done, PMU fixed sampling period to measure the state quantity of the power system, discrete state-space model to establish a closed-loop system to power T is the sampling period. 2) In a practical system, the entire state of the system is difficult measured. 3) using the Lyapunov stability theory and LMI method of power system stability model was subjected to analysis, so as to satisfy the inequality (15), then authentication controller gain analysis. The present invention can ensure the stability of the power system with a case where the quantizer effectively alleviate the communication network congestion, reducing construction costs over a communication network, while saving the storage space of the data storage center, facilitate expansion of the system, increase economic efficiency.