基于电容储能反馈的单相PWM整流器的研究  

Control Strategy for Single-phase PWM Rectifier Based on Feedback of Capacitor Storage

作　　者：吴志清[1] 赵德勇[1] 胡杨[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《电力电子技术》2015年第3期16-17,21,共3页Power Electronics

摘　　要：介绍了单相脉宽调制(PWM)整流器数学模型,分析了功率传递关系。提出一种以直流侧电容储能为外环的反馈控制策略,内环电流采用滞环控制。为减小负载扰动对系统的影响,引入负载功率前馈算法。实验比较了传统电压电流双闭环控制和所提控制策略,结果表明,所提策略能满足系统的控制要求,且动态特性更好。The single-phase pulse width modulation （PWM） rectifier power flow is analyzed.A control strategy based on feedback to the DC capacitor energy storage as outter loop is proposed, inner loop uses hysteresis current control, im- prove system responsiveness.In order to reduce the impact of load disturbance,load power feedforward algorithm is introduced.Experiments compare the performance of both traditional and the proposed control strategy.The results show that the proposed control strategy can meet the control requirements of the svstem and has batter dynamic characteristics.

关 键 词：整流器 储能反馈 内环 外环 

分 类 号：TM461[电气工程—电器]