基于模糊PID控制的稀土永磁发电机的小值振荡研究

Research on Small Oscillation of Rare-earth Permanent Generators Based on Fuzzy-PID

稀土永磁发电机在实际运行时,由于不利因素的影响,会发生振荡现象。发电机振荡对其本身及用电系统极为不利。严重时造成电器及设备等损坏,会使用户不能进行正常工作。发电机振荡问题是很复杂的,这里只针对同步发电机稳态小振荡进行分析。基于模糊PID控制器对稳态小振荡进行控制。介绍了小值振荡的分析,模糊PID控制器的原理与作用。仿真研究结果表明模糊PID控制器较常规PID控制器对于消除小值振荡有更好的效果。

When rare-earth permanent generators operate, it might occur oscillation phenomena because of the influence of unfavorable factors. Generator oscillation is extremely adverse for itself and power system. Seriously ,users can＇t work normally, electrical and equipment damage. Generator oscillation problem is very complex. Here, we only analyze steady-state small oscillation of synchronous generators. Controlling steady-state small oscillation based on fuzzy PID controller. Analysis of steady-state small oscillation is introduced, as well as principle and functions of fuzzy PID controller. The simulation research is carried out, fuzzy PID controller to eliminate small oscillation is better than general PID controller.