高电压技术2018，Vol.44Issue(1)：296-303,8.DOI:10.13336/j.1003-6520.hve.20171227036
计及电动汽车增程器效率优化的PWM变换器MFPR控制策略
Efficiency Improvement Control Strategy Based on MFPR Regulator in Range Extender Generation System
摘要
Abstract
The key to control the range extender generation system is to improve efficiency and reduce the emission of the electric vehicle.In this paper,based on the purpose of efficiency optimization,both engine and generator are matched to get a public high-efficiency region,and a multi-point speed switching power following control strategy is presented.Engine speed is operated on the defined points according to required driving power and minimum fuel consumption curve.The engine speed is constant,and then generator torque is regulated on each constant speed points.Engine speed and generator torque are decoupled.To ensure the response characteristics of control system and improve the robusmess,a multi-frequency proportional resonant controller(MFPR) is adopted to eliminate static error of generator output current.The impacts of MFPR controller parameters on system's characteristics and stability are analyzed.A general method for control system parameters design and stability design is proposed by using the control theory criterion.The phase margin of the designed control system is 30°＜γ＜60°,the amplitude margin is h＞6 dB which meet the stability requirements.The simulation and experiment verify that the designed power following control strategy has good dynamic response and stability.关键词
增程式电动汽车/增程器/效率优化/PWM变换器/多比例谐振控制/鲁棒性Key words
extended range electric vehicle/range extender/efficiency optimization/PWM rectifier/multi-frequency proportional resonant controller/robustness引用本文复制引用
王晓远,吕海英,孙强..计及电动汽车增程器效率优化的PWM变换器MFPR控制策略[J].高电压技术,2018,44(1):296-303,8.基金项目
国家高技术研究发展计划(863计划)(2011AA11A239).Project supported by National High-tech Research and Development Proram of China (863 Program) (2011AA11A239). （863计划）
