New DC Voltage Balancing Technique for High Power Multilevel Converter

E Surya Narayana, G Venkateswara Rao

Abstract


In this venture, a dedicated pulse width modulation (PWM) procedure particularly intended for single-stage (or four wire three-stage) multilevel Cascaded H-Bridge Converters is displayed. The point of the proposed method is to limit the DC-Link voltage unbalance, autonomously from the adequacy nof the DC-Link voltage reference, and remunerate the exchanging gadget voltage drops and on-state resistances. Such remuneration can be utilized to accomplish an expansion in the waveform nature of the converter. This is especially valuable in high-control low supply voltage applications where a low exchanging recurrence is utilized. The DC-Link voltage adjusting capacity of the strategy expels the prerequisite for extra control circles to effectively adjust the DC-Link voltage on every H-Bridge, streamlining the control structure. In this venture fluffy controller is utilized to decrease the aggregate consonant twisting. The proposed balance procedure has been approved using reproduction comes about.


References


Luca Tarisciotti, Member, IEEE, Pericle Zanchetta, Member, IEEE, Alan Watson, Member, IEEE,” Active DC Voltage Balancing PWM Technique for High-Power Cascaded Multilevel Converters”. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 61, NO. 11, NOVEMBER 2014

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