航空应用宽变频输入电流型PWM整流器高功率因数运行控制  

High power factor control of wide AC input frequency rangecurrent-source PWM rectifiers for aerospace applications

作　　者：郭强 杨鑫宇 李山 戴云龙 张小成 Guo Qiang;Yang Xinyu;Li Shan;Dai Yunlong;Zhang Xiaocheng(School of Electrical and Electronic Engineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学电气与电子工程学院,重庆400054

出　　处：《仪器仪表学报》2024年第12期85-97,共13页Chinese Journal of Scientific Instrument

基　　金：重庆市自然科学基金(CSTB2022NSCQ-MSX0997)项目资助。

摘　　要：当三相电流型整流器作为航空供电系统有源前端时,因具有宽输入交流频率(最大至800 Hz),引起交流滤波电容无功功率激增进而导致系统功率因数降低。为有效减小滤波电容电流,基于前馈解耦控制策略建立了同步旋转坐标系下数学模型,采用相量法对电容电流进行补偿。此外,为进一步提高功率因数,提出了一种功率因数电流矢量协调控制策略实现对无功电流控制。利用MATLAB对控制环路及参数灵敏度进行分析,给出了控制环路零极点配置和增益设计方案,采用基于模型的开发与自动代码生成实现了软件部分开发的高效性。最后,通过仿真和实验验证了所提方法的正确性和可行性,实验结果表明,在整个极宽输入频率内,网侧电流总谐波畸变率小于5%,系统功率因数始终保持0.99以上。When three-phase current rectifiers are used in the active front-end of the aviation power supply system,the wide input AC frequency(up to 800 Hz)causes a surge of reactive power in the AC filter capacitor,which in turn leads to the reduction of the system power factor.In order to effectively reduce the filter capacitor current,a mathematical model in the synchronous rotating coordinate system is established based on the feed-forward decoupling control strategy,and the capacitor currents is compensated by the phase quantity method.In addition,in order to further improve the power factor,a power factor current vector coordinated control strategy is proposed to realize the control of reactive current,and the control loop and parameter sensitivity are analyzed by using MATLAB,and the zero-pole configuration and gain design scheme of the control loop are given,and the model-based development and automatic code generation are adopted to realize the high efficiency of the software part development.Finally,the proposed control method is verified by simulation and experiment for its correctness and effectiveness,and the experimental results show that the total harmonic distortion rate of the grid-side current is less than 5%and the power factor of the system is always above 0.99 throughout the very wide input frequency.When three-phase current rectifiers are used in the active front end of the aviation power supply system,the wide input AC frequency(up to 800 Hz)causes a surge of reactive power in the AC filter capacitor,which leads to the reduction of the system power factor.To effectively reduce the filter capacitor current,a mathematical model in the synchronous rotating coordinate system is formulated,which is based on the feed-forward decoupling control strategy.The capacitor current is compensated by the phase quantity method.In addition,to further improve the power factor,a power factor current vector coordinated control strategy is proposed to realize the control of reactive current.The control loop and parameter

关 键 词：电流型整流器 航空电源 宽输入频率 无功电流控制 高功率因数 

分 类 号：TM461[电气工程—电器] TH39[机械工程—机械制造及自动化]