同步发电机励磁系统的建模与控制

分析了同步发电机交流励磁系统中存在的问题,提出应用斩波技术对其进行改造和优化.斩波电路是一个动态的,非线性的电路,利用状态空间平均法和欧拉公式建立了其数学模型,应用工程设计法设计出相应的调节器.依据发电机现场运行机理,组建了闭环自动控制系统,实验结果证明了该方案的可行性.

Modeling and Controlling for Excitation System of Synchronous Generator

The problem of AC-excited system for synchronous generator is analyzed.A new type of reconstruction and opti-mization excitation system based on chopped wave technique is presented.The chopped wave circuit is a nonlinear and time-varying dynamic system,the mathematical models are set up with average state space method and euler formula.The regulator is designed with the engineering design method.According to the operational principle of synchronous generator,the closed loop control system is build.The experiment results verify that this control scheme is feasible.It can present the-oretic direction on the reconstruction and optimization excitation system.