Design & Real-Time Field Implementation of Micro-Inverter for Rural Applications

Anuradha Tomar, Phuong H. Nguyen, Sukumar Mishra

Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

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Need for comprehensive development of photovoltaic (PV) based micro-inverter interface for various rural applications is observed. This paper demonstrates the design, development, and real-time field experimentation of an energy-efficient, PV based single-phase micro-inverter for rural/remote applications. The proposed dual-stage single-phase inverter takes the advantage of interleaved DC/DC boost converter for cancellation of 180 ο phase-shifted harmonics and application of voltage doubler circuit results in a reduction of the transformer turns ratio with low flux leakage and thus endeavoring for better conversion efficiency at a reduced size of magnetics. Further, high-frequency switching at the first leg and low switching frequency at another leg of the full-bridge converter ensures lower switching losses at light load conditions. Experimental results are carried out at field location (latitude: 26.431°, longitude: 74.707°) in Rajasthan, India. The interleaved boost DC/DC converter efficiency is found approximately 91.73% at full load and 77.74% at 10% load. Micro-inverter overall efficiency is observed in between 57.34% to 91.6%.
Original languageEnglish
Title of host publication2020 IEEE 17th India Council International Conference, INDICON 2020
PublisherInstitute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)978-1-7281-6916-3
Publication statusPublished - 5 Feb 2021
Event2020 IEEE 17th India Council International Conference (INDICON) - Delhi, India
Duration: 11 Dec 202013 Dec 2020


Conference2020 IEEE 17th India Council International Conference (INDICON)


  • Interleaved DC-DC converter
  • Photovoltaic (PV)
  • micro-inverter
  • rural electrification


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