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| 电力系统非线性PID励磁控制器 | |
| 引用本文： | 李崇坚,郭国晓,高龙,李发海. 电力系统非线性PID励磁控制器[J]. 清华大学学报(自然科学版), 2000, 40(3): 48-51 |
| 作者姓名： | 李崇坚 郭国晓 高龙 李发海 |
| 作者单位： | 1. 冶金工业部自动化研究院,北京,100071 2. 清华大学,自动化系,北京,100084 3. 清华大学,电机工程与应用电子技术系,北京,100084 |
| 摘 要： | 为提高输电系统稳定性 ,克服窝电现象 ,提出一种基于非线性跟踪微分器 ( NTD)的电力系统非线性比例 -积分-微分 ( PID)励磁控制器。讨论了控制器的结构方案和参数选择 ,并作了数字仿真分析。通过动态模拟实验 (物理实验 )对所提方案和已有的线性方案作了对比研究。结果表明新方案的阻尼力强 ,鲁棒性突出。尤其是当系统稳定性敏感参数 (线路电抗 XL)在由标称值增大至 4 0 0 %的范围内摄动下 ,系统的稳定性及过渡过程波形基本不变 ,这是一般方案难以达到的。 |
| 关 键 词： | 电力系统 非线性控制 稳定性 非线性跟踪微分器(NTD) 参数摄动 鲁棒性 |
| 修稿时间： | 1999-01-27 |
Nonlinear PID exciting controller for power systems |
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| LI Chongjian,GUO Guoxiao,GAO Long,LI Fahai. Nonlinear PID exciting controller for power systems[J]. Journal of Tsinghua University(Science and Technology), 2000, 40(3): 48-51 | |
| Authors: | LI Chongjian GUO Guoxiao GAO Long LI Fahai |
| Abstract: | Nonlinear PID exciting controller for power systems was proposed to improve power system stability and to overcome poor power transmission ability. The controller design was based on the nonlinear tracking differentiator (NTD). The controller structure and parameters selection were discussed and a digital simulation analysis of the system was given. The proposed controllers were compared experimentally with existing linear exciters. The physical experiment results show that the new controllers have good damping and satisfied robustness. Especially the system transient performance remained unchanged during a large perturbation of the stability sensitive parameter (the line reactance X L ) from the rated value X L0 to 400% X L0 , which it is impossible for ordinary exciters. |
| Keywords: | power system nonlinear control stability nonlinear tracking differentiator (NTD) parameter perturbation robustness |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |