Stacked voltage source inverter with separate DC sources

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United States of America Patent

PATENT NO 9998033
SERIAL NO

14668962

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Abstract

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A stacked voltage source inverter having separate DC sources is described herein. This inverter is applicable to low or medium voltage, low to medium power applications such as photovoltaic utility interface systems, battery storage application such as peak shaving with renewables, motor drive applications and for electric vehicle drive systems. The stacked inverter consists of at least one phase wherein each phase has a plurality of low voltage full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with fast switching and small low pass AC output filter. A system controller controls operating parameters for each inverter. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

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Patent Owner(s)

  • EMPOWER MICRO SYSTEMS INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ilic, Milan San Jose, US 33 612
Nuotio, Mika San Jose, US 12 187

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