【摘要】 首先介绍了三相电压型脉宽调制(PWM)整流器在d,q坐标系下的数学模型。为提高整流器的控制性能,提出以电容储能为外环控制目标的反馈控制策略。针对3种不同的外环反馈控制方式进行理论分析,设计方法介绍和对比实验。结果表明,能量-电流双闭环在响应的快速性和稳定性上最好。更多还原

【Abstract】 Firstly,the model of the three-phase voltage pulse width modulation(PWM) rectifier mathematical in the d,q coordinate system is introduced.In order to improve the performance of rectifier,the feedback storage of capacitor loop is proposed.Three different outer-loop feedback control modes are analyzed in theory,their design methods are introduced.Comparative experiments are carried out.The results show that the energy-current double closed loop is the best on the stability of the rapid response.更多还原