基于直接电流控制的PWM整流器功率控制  

Power control of PWM rectifiers using direct current control

作　　者：胡照文[1] 黄生祥[1] 赵薇[1] 周克省[1] 周良玉[1] 

机构地区：[1]中南大学物理科学与技术学院,湖南长沙410075

出　　处：《中南大学学报（自然科学版）》2006年第6期1166-1170,共5页Journal of Central South University:Science and Technology

摘　　要：在以电网电压矢量定向的同步旋转坐标中,通过分析有功功率和无功功率与交流侧电压、电流空间矢量之间的关系,提出基于内环直接电流控制的PWM整流器功率控制方案,根据PWM整流器交流侧电压方程及有功功率传递关系建立PWM整流器功率控制系统数学模型,完成对电流、电压PI调节器参数的整定。仿真结果表明:PWM整流器启动时的直流电压超调量小,响应速度快,具有极佳的动静态性能。Under the source voltage oriented synchronous coordinate, the relations of PWM rectifier active power and reactive power with source voltage and current space vectors were analyzed, and a PWM rectifier power control scheme based on direct current control was proposed. The mathematic model for PWM rectifier power control was established according to the voltage equation and power transmission principle, which was applied to theadjustment of the parameter of both current and voltage PI regulators. The simulation results show that the PWM rectifier has the merits of low overshoot of starting direct voltage, high speed of response and excellent dynamic and static performance.

关 键 词：PWM整流器 功率控制 空间矢量 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]