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Study and Control of Three-Phase PWM Rectifier Based on Dual Single-Input Single-Output Model

机译:基于双单输入单输出模型的三相PWM整流器的研究与控制

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摘要

A novel dual single-input single-output (DSISO) model for a three-phase two-level PWM rectifier is proposed, in order to simplify the complicated structure of multiple input variables and multiple control objectives. In the proposed model, the three-phase PWM rectifier is equivalent to two single-phase PWM rectifiers in the $alpha-beta$ stationary reference frame, which is easier to analyze than a three-phase PWM rectifier. Based on the DSISO model, the small-signal model is derived, the control-to-output transfer function is deduced, and the design principle of the voltage controller is given. The control strategy is analyzed to determine switching control signals in a switching period. Experimental results confirm the validity of the DSISO model and the feasibility of the control strategy based on DSISO model.
机译:提出了一种新颖的三相两电平PWM整流器双单输入单输出(DSISO)模型,以简化多输入变量和多控制目标的复杂结构。在提出的模型中,三相PWM整流器等效于$ alpha-beta $固定参考系中的两个单相PWM整流器,比三相PWM整流器更易于分析。基于DSISO模型,推导了小信号模型,推导了控制到输出的传递函数,并给出了电压控制器的设计原理。分析控制策略以确定在切换周期中的切换控制信号。实验结果证实了DSISO模型的有效性和基于DSISO模型的控制策略的可行性。

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