Multi level inverters have developed as an essential converter in high power medium voltage converters and it has tremendous contribution in renewable energy field. In an attempt to report the recent advances and trends in power electronics technology, this paper presents a review of various multi level converters which are extensively used in industrial applications. The paper focuses to summarize the technological advancements in neutral clamped, cascaded H bridge topologies and flying capacitor. The paper also summarizes about various modulation techniques like fundamental modulation, carrier based PWM techniques, selective harmonic elimination technique etc.
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Chithra M Chithra M (2020) studied this question.
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