Study of Control Strategy Based Dual-PWM Converter under Unbalanced Input Voltage Condition

机译：输入电压不平衡条件下基于控制策略的双PWM转换器的研究

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The study of control strategy based dual PWM converter under unbalanced input voltage is mainly discussed in this paper. The operation of dual-PWM converter is analyzed, then the mathematical model of PWM rectifier when the power supply voltage is unbalanced is established, for the problem existing in the negative sequence grid voltage feed-forward control strategy, the closed loop control strategy to suppress negative sequence current is proposed, which can suppress various kinds of disturbances of the system, there isn't completely negative sequence current in the system. The simulation results verify the correctness of the proposed control strategy.

机译：本文主要讨论了在不平衡输入电压下基于控制策略的双PWM变换器的研究。分析了双PWM变换器的工作原理，建立了电源电压不平衡时PWM整流器的数学模型，针对负序电网电压前馈控制策略中存在的问题，采用闭环控制策略来抑制提出了负序电流，它可以抑制系统的各种干扰，系统中不存在完全负序电流。仿真结果验证了所提出控制策略的正确性。

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《International conference on electronic engineering, communication and management;EECM 2011》|2011年|p.267-272|共6页
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Haijun Tao; Di Hu;
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中图分类通信;
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dual-PWM converter; unbalanced voltage; positive and negative current;

机译：双PWM转换器电压不平衡正负电流;

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Study of Control Strategy Based Dual-PWM Converter under Unbalanced Input Voltage Condition

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