高压电器2017，Vol.53Issue(11)：57-62,6.DOI:10.13296/j.1001-1609.hva.2017.11.010
一种降低换相失败概率的变论域模糊控制方法
Variable Universe Fuzzy Control Method for Reducing Commutation Failure Probability
摘要
Abstract
To reduce the probability of commutation failure for DC systems,the key factors to promote the commutation process are obtained by analyzing the mechanism of commutation failure so as to prevent the commutation failure by means of fuzzy control.For improving the accuracy of fuzzy controller and balancing the number of control rules and the accuracy,a variable universe fuzzy control method based on characteristic vectors of phase plane is proposed.This method can alter the universe dynamically and revise the control rules to improve control accuracy and convergence.It measures the change of voltage dynamically,increases the firing angle and decreases the commutation area to inhibit commutation failure when a fault occurs.Simulation based on the standard CIGRE HVDC model verifies the sensitivity and correctness of the proposed variable universe fuzzy control method,and indicates that this method can reduce commutation failure probability.关键词
换相失败/预防控制/变论域模糊控制/特征向量Key words
commutation failure/predictive control/variable universe fuzzy control/characteristic vector引用本文复制引用
胡松伶,王渝红,刘霄涵,李兴源..一种降低换相失败概率的变论域模糊控制方法[J].高压电器,2017,53(11):57-62,6.基金项目
国家自然科学基金重点资助项目(51037003).Project Supported by National Natural Science Foundation of China(51037003). （51037003）
