基于最优变目标策略的励磁系统与SVC协调控制Coordination Control between Generator Excitation and SVC Based on Optimal Variable Aim Strategy
邹强;李兴源;
摘要(Abstract)：
发电机励磁系统以及静止无功补偿器(SVC)对远距离输电系统的稳定性有很大影响。文章基于单机无穷大系统的非线性模型,建立了包括状态变量发电机机端电压在内的状态空间方程,提出了一种最优变目标控制(OVAC)策略,根据励磁系统和SVC不同的控制目标分别采用不同的控制策略,从而协调控制这两种控制器。仿真结果表明,该策略能够有效提高故障时发电机的无功出力,并能提高系统阻尼,抑制振荡,同时改善系统的功角和电压稳定性。
关键词(KeyWords)： 电力系统;励磁系统;电压稳定;静止无功补偿器(SVC);最优变目标控制
基金项目(Foundation): 国家重点基础研究发展计划项目(973项目)(2004CB217907) 国家自然科学基金资助项目(50595412)。~~
作者(Author): 邹强;李兴源;
Email:
DOI: 10.13335/j.1000-3673.pst.2006.10.005
参考文献(References)：
- [1] Prabha Kundur．电力系统稳定与控制[M]．北京:中国电力出版社, 2001．
- [2] 李兴源,段海峰．改善电压稳定性的发电机非线性最优变目标励 磁控制[J]．中国电机工程学报,1998,18(3):208-211． Li Xingyuan , Duan Haifeng . Nonlinear optimal-variable-aim excitation controls of generators for improving voltage stability [J]. Proceedings of the CSEE, 1998, 18(3): 208-211.
- [3] 赵贺．电力电子学在电力系统中的应用——灵活交流输电系统 [M]．北京:中国电力出版社,2001．
- [4] Miller T J E. Reactive power control in electric systems[M]. New York: Wiley, 1982.
- [5] 王杰,阮映琴,傅乐,等．计及动态负荷的电力系统静止无功补 偿器(SVC)与发电机励磁控制[J]．中国电机工程学报,2004,24(6): 24-29． Wang Jie, Ruan Yingqin, Fu Le, et al. The nonlinear control of SVC and excitation of generators in power systems with dynamic loads [J]. Proceedings of the CSEE, 2004, 24(6): 24-29.
- [6] 倪以信,陈寿孙,张宝霖．动态电力系统的理论和分析[M]．北京: 清华大学出版社,2002．
- [7] 任丕德,刘发友,周胜军．动态无功补偿技术的应用现状[J]．电 网技术,2004,28(23):81-83．
- [8] 马幼捷,周雪松,相伟．SVC综合非线性控制器在交直流混合系 统中的应用[J]．中国电机工程学报,2004,24(9):19-23． Ma Youjie, Zhou Xuesong, Xiang Wei. The application of synthetical nonlinear SVC controller in AC/DC system[J]. Proceedings of the CSEE, 2004, 24(9): 19-23.
- [9] 杨晓东,房大中,刘长胜,等．阻尼联络线低频振荡的SVC自适 应模糊控制器研究[J]．中国电机工程学报,2003,23(1):55-59． Yang Xiaodong. Fang Dazhong, Liu Changsheng, et al. An adaptive SVC fuzzy controller for damping tie-link low-frequency oscillation [J]. Proceedings of the CSEE, 2003, 23(1): 55-59.
- [10]苏建设,柯宁,陈陈．提高暂态稳定的励磁与FACTS协调策略设 计[J]．中国电机工程学报,2004,24(9):6-10． Su Jianshe, Ke Ning, Chen Chen. Coordinated design of generator excitation and FACTS for transient stability enhancement [J]. Proceedings of the CSEE, 2004, 24(9): 6-10.
- [11] Barnard R D. An optimal-aim control strategy for nonlinear regulation systems[J]. IEEE Trans on Automatic Control, 1975, 20(2): 200-20.
- [12] Barnard R D. Continuous-time implementation of optimal-aim controls[J]. IEEE Trans on Automatic Control, 1976, 21(3): 432-434.
- [13] Barnard R D. Optimal-aim control strategies applied to large-scale nonlinear regulation and tracking systems[J]. IEEE Trans on Circuits and Systems, 1976, 23(12): 800-806.
- [14]李兴源,刘红超,邱晓燕,等．改善暂态稳定性的HVDC非线性 控制策略[J]．电力系统自动化,2002,26(14):16-19． Li Xingyuan, Liu Hongchao, Qiu Xiaoyan, et al. A nonlinear control strategy of HVDC for improving transient stability of power systems [J]. Automation of Electric Power Systems, 2002, 26(14): 16-19.
- [15]李兴源,刘取,高景德．多机电力系统再同步最优变目标控制[J]．中 国电机工程学报,1994,14(4):33-37． Li Xingyuan. Liu Qu, Gao Jingde. Optimal-variable-aim control of resynchronization in multimachine power systems[J]. Proceedings of the CSEE, 1994, 14(4): 33-37.
- [16]鲜艳霞,李兴源．HVDC与发电机励磁的非线性综合控制策略 [J]．电网技术,2004,28(14):32-35． Xian Yanxia, Li Xingyuan. A comprehensive nonlinear control strategy of HVDC and generator excitation[J] . Power System Technology, 2004, 28(14): 32-35.
- [17]高峰,秦翼鸿,徐国禹．一种实用的Fuzzy自适应励磁控制方法 [J]．电力系统自动化,1994,18(11):27-33． Gao Feng, Qin Yihong, Xu Guoyu. A practical fuzzy adaptive excitation control method[J]. Automation of Electric Power Systems, 1994, 18(11): 27-33.
- [18]于占勋,尹项根,杨德先,等．汽轮发电机组PSS与汽门的智能 变结构控制[J]．中国电机工程学报,1999,19(10):77-80． Yu Zhanxun, Yin Xianggen, Yang Dexian. et al. Intelligence variable structure associated control of PSS and valve for turbo generator unit [J]. Proceedings of the CSEE, 1999, 19(10): 77-80.