【摘要】 提出将PWM技术引入整流器的控制之中,在实现能量双向流动的同时,实现网侧电流波形的正弦波控制和单位功率因数运行。同时,采用带有前馈补偿的空间矢量脉宽调制(SVPWM)直接电流控制方法,对三相电压型PWM整流器进行双闭环控制。对整个控制系统进行的实验验证了提出的控制方法和系统参数设计方法的正确性。目前该系统已经用作蓄电池充放电的前端设备。更多还原

【Abstract】 A new control method of rectifier based on Voltage-source PWM Rectifier (VSR) is presented.The rectifier can implement bidirectional power flow,sinusoidal current control and unit power factor control in grid side.The feedforward and decoupling control based on active and reactive current,as a kind of (SVPWM) direct current control strategy was selected.Experiment results of the system also testified that the use of three-phase VSR in battery charger/discharger system is available.Now,the system is already used as fore-end equipment of accumulator cell charge-discharge.更多还原