摘要
研究配电静止同步补偿器(D-STATCOM)用于补偿电压的模糊自适应PI控制策略。分析了d-q坐标系中D-STATCOM数学模型的特点,指出传统的PI控制很难满足D-STATCOM控制系统的要求。对传统的电压外环/电流内环双闭环控制策略进行了剖析。针对该控制策略中PI调节器参数难以整定且控制器缺乏自适应性的不足,本文引入了基于瞬时功率平衡的直接电压控制策略和模糊自适应PI控制策略。仿真和实验结果表明,本文提出的控制策略算法简单、性能优良、实用性强,满足D-STATCOM电压控制要求,具有较强的工程应用前景。
The voltage control strategy of distribution static synchronous compensator （D-STATCOM） based on Fuzzy-PI Controller is presented in this paper. The characteristics of mathematic model of D-STATCOM is investigated.The paper points out that the traditional PI control can not fit for the control system of D-STATCOM. In the traditional cascade control strategy it is very difficulty to tuning the PI regulator parameter and it has not the adaptive performance. In order to improve the control performance of D-STATCOM control system, the direct voltage control strategy based on the balance of instantaneous power combined with PI control method based on self-tuning parameter is proposed. The simplicity, excellent performance and practiclity are verified by experimental results.
出处
《电工技术学报》
EI
CSCD
北大核心
2008年第2期120-126,共7页
Transactions of China Electrotechnical Society
基金
湖南省教育厅资助科研项目(07B068)
关键词
配电静止同步补偿器
电压调节
模糊自适应PI控制
瞬时功率理论
Distribution static synchronous compensator, voltage regulation, fuzzy adaptive PI control, instantaneous power theory
