A Coordinated Control And Optimization Method For AGC Of Regional Power System

The purpose of this paper is to solve the load frequency control problem of regional power grid and the coordination optimization method. By using disturbance rejection controller on the system frequency control, then put forward two quadratic performance index of feedback parameters on the non-linear active disturbance rejection controller based on optimize the real-time tuning. Combined with the actual situation of power grid has many kinds of energy, on hydropower and thermal power to save energy as the targets of coordinated control.The main content of this paper is the first step according to the frequency character of the power system analysis. In the experience of previous studies on the basis of summarizing problems on current load frequency control The ADRC is selected in this paper, the history of the development of control theory ADRC developed from the classic PID controller. Thus ADRC controller has the advantages of PID controller. At the same time, to avoid the unreasonable calculation error of the PID controller in the development process. Like parameter tuning difficulty and so on. In the ADRC frequency control model is in power system. The idea is verified by simulation examples, ADRC and classical PID controller in the same control conditions. Showing no overshoot, steady-state error is small, short response time and strong adaptability of excellent performance parameters. Adding two quadratic performance index output relative to un-optimized has significantly reduced, to achieve the optimal control and energy saving for the purpose of load frequency.In order to improve the utilization rate of the objective of the electric power industry energy, starting from the actual situation of power grid. This paper studied by reducing the amount of primary energy use to improve the contradicting between energy supply and demand in China, to realization of economic operation of LFC system. Clean energy mainly hydroelectric energy through the study of control system of the two generation of energy. Give full play to complementary advantages and energy to achieve the effective use of the sources of energy. The total hydropower minimum water consumption and power consumption minimization as the objective function. Complete coordinated optimization control for LFC combined with a series of constraints.LFC based on ADRC around the economic operation of the power system optimization. So this research can not only to control the frequency of power system can solve the power allocation problem under the multi-energy unite.