摘要
对于转速和负载同时扰动的多相储能发电机励磁控制系统,传统电压反馈控制难以满足直流侧调压要求。为此,设计了一种具有前馈加电压、电流双闭环反馈控制结构的励磁控制系统。该系统在电压闭环与电流闭环控制的基础上,引入了前馈控制环节,给出了推导前馈控制方程以及获取前馈控制参数的方法。实验结果表明:前馈控制在励磁控制过程中起主导作用,有效提高了励磁电流响应速度;电流反馈与电压反馈控制可对前馈控制误差进行补偿,有效提高了直流侧调压精度。
For large inertia generator system subjected to disturbance of speed and load at the same time,traditional voltage feedback control can hardly meet the DC voltage control need.Therefore it is necessary to design a control system characterized by fast and strong excitation.Aiming at the characteristics of energy storage generator,an excitation control system with feed-forward plus voltage and current feedback control structure is designed.On the basis of the voltage close-loop control and current close-loop control,the feed-forward control is introduced.The method of deriving the feed-forward control equation and obtaining the feed-forward control parameters is given.The experimental results show that the feed-forward control plays a leading role in the process of the excitation control,effectively improving the response speed of the excitation current,whereas the voltage and current feedback control compensates the error of feed-forward control and thus improves the control precision of the DC voltage.
作者
刘金利
马伟明
翟小飞
晏明
LIU Jin-li;MA Wei-ming;ZHAI Xiao-fei(National Key Laboratory of Science and Technology on Vessel Integrated Power System,Naval Univ. of Engineering,Wuhan 430033,China)
出处
《海军工程大学学报》
CAS
北大核心
2019年第3期32-38,共7页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(51607186,51407190)
关键词
多相储能发电机
励磁控制系统
脉冲负载
闭环控制
前馈控制
multi-phase energy storage generator
excitation control system
pulse load
closed-loop control
feed-forward control
