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Decoupled Active and Reactive Power Control of Cascaded H-Bridge PV Inverter for Grid-Connected Applications

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 435)

Abstract

In a conventional solar power plant, DC input voltage to the inverter is fed from the multiple solar panels with series parallel combination. So the maximum power point tracking (MPPT) is possible only on the series parallel combination of all the arrays together, which is not so efficient. Independent maximum power point tracking (MPPT) is needed to improve the system efficiency. Independent control of the voltage is possible through the cascaded inverters. Hence, independent MPPT control can be obtained by using cascaded H-Bridge-based inverters for PV applications. In this paper, decoupled control of active and reactive powers for a CHB inverter in PV applications is explained and the simulation results are presented. System operation with equal and unequal irradiances on PV arrays is also explained.

Keywords

Multilevel inverter Cascaded H-bridge Maximum power point tracking Photovoltaic, power control 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.School of Electrical EngineeringVellore Institute of Technology (VIT) UniversityVelloreIndia
  2. 2.Department of Electrical and Electronics EngineeringUniversity of JohannesburgAuckland, JohannesburgSouth Africa
  3. 3.Research and Development, Power Electronics DivisionOhm TechnologiesChennaiIndia

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