模糊电力系统稳定器的设计与实现

Design and implementation of fuzzy power system stabilizer

针对模糊控制系统具有多参数和非线性的特点,给出了一种基于Matlab的模糊电力系统稳定器快速设计开发方法,以克服传统的设计方法所具有的实现复杂且开发周期长等不足。简要介绍了如何由模糊逻辑工具箱和集成仿真环境Simulink来建立整个系统的仿真模型,由Real-TimeWorkshop将已取得满意仿真效果的模型转换为应用程序,然后将其下载到目标环境中运行,在线调整参数以达到最佳控制效果,从而实现快速原型开发,即可应用于实际系统。仿真结果表明所设计的模糊电力系统稳定器比传统的电力系统稳定器能更有效地抑制系统低频振荡。

As fuzzy control system has the features of multi-parameter and non-linearity,a method for fast developing fuzzy power system stabilizer based on Matlab is presented.It avoids the shortcomings of long development period and complex implementation in conventional design methods.The simula tion model of the whole system is established using Fuzzy Logic Toolbox and Simulink.Real-Time Workshop is applied to convert the satisfied simulation model into application routines,which is then downloaded to object hardware to online adjust the parameters for optimal control effective-ness.The fast-developed prototype can be applied in real system.The simulation results indicate that the designed fuzzy power system stabilizer is better than the conventional fuzzy power system stabilizer in suppressing the low-frequency system swing.