Simulation And Analysis Of Generator Excitation System For Three Gorges Power Plant

Power system is one of the most important industries of the modern society, and improving the power system's stability has the great meaning to the whole country's economics. As one of the most effective and economic methods, the excitation system's control of the large turbine can greatly improve the power systems'stability and dynamic performance. The simulation research of the excitation system has the important practicality. This text starts from excitation's control means, provides an adaptive dispersive controller which adopts adaptive control technology and recursive design means. And then, does simulation tests based on Three Gorges Hydropower Plant's excitation system, these tests prove that this control strategy has better compositive dynamic performance and damp characteristic. In the end, during excitation control device's realization, it has digital characteristic, this text validates this control strategy's correctness and validity in practical application. Thus, this text makes a beneficial attempt to provide a newfashioned control strategy for large-scale generator to improve system's stability.