A Stand-Alone Sine-Wave Inverter with Reduced Switching Loss

Nanda Kishor Panda, Ramprasad Panda, Jagadish Kumar Patra*

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review


Sine pulse width modulation is one technology used mostly in power inverters nowadays to reduce bulky filter requirements and give a pure sinusoidal wave. This paper brings forward a novel stand-alone sine-wave inverter utilizing sine PWM technology in a full-bridge inverter with a modified topology having two additional buck switches connected at the output of a conventional H-bridge topology. This inverter totally deals with six switches from which the two additional switches are the only ones operating at high frequency while the other switches operate at the low (line) frequency. This improves the voltage control and improves the overall efficiency by reducing switching loss. The above topology aims to reduce the switching losses by half as compared to a standard H-bridge hence increasing the efficiency as well as increasing the reliability of the high switching switches as they operate alternatively for only half cycle. The entire idea was simulated and verification of the same was done in laboratory utilizing a prototype model.

Original languageEnglish
Title of host publicationAdvances in Electrical Control and Signal Systems - Select Proceedings of AECSS 2019
EditorsGayadhar Pradhan, Stella Morris, Niranjan Nayak
PublisherSpringer Science+Business Media
Number of pages9
ISBN (Print)9789811552618
Publication statusPublished - 2020
Externally publishedYes
EventInternational Conference on Advances in Electrical Control and Signal Systems, AECSS 2019 - Bhubaneswar, India
Duration: 8 Nov 20199 Nov 2019

Publication series

NameLecture Notes in Electrical Engineering
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


ConferenceInternational Conference on Advances in Electrical Control and Signal Systems, AECSS 2019


  • Buck switch
  • Efficiency
  • H-bridge
  • Reliability
  • Sine PWM
  • Switching loss


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