DC bus voltage regulation using photovoltaic module: A non-iterative method

Alireza Askarian, Mayank Baranwal, Srinivasa Salapaka

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


Uncertainties in load power demand and unpredictabilities associated with renewable energy sources pose challenges to current microgrids. The situation worsens when the maximum power generated by a Photovoltaic (PV) module exceeds the power demanded by the load. The excess power increases the voltage at the point of common coupling (PCC). This paper addresses the issue of DC-link voltage regulation using a standalone PV module for the scenario when PV output at maximum power point (MPP) exceeds load demands. In particular, the time-scale separation between the fast PV dynamics and the slow variations in weather (temperature and irradiance) conditions is exploited to devise a novel non-iterative control strategy with fast closed-loop dynamics. A disturbance-rejection based robust control framework is employed and the closed-loop voltage regulation and load disturbance rejection performances are compared for the constant current and the constant voltage modes of operation of a PV module. Simulation case studies are presented which examine effectiveness and robustness of controllers for voltage regulation at the PCC.

Original languageEnglish (US)
Title of host publication2017 American Control Conference, ACC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781509059928
StatePublished - Jun 29 2017
Event2017 American Control Conference, ACC 2017 - Seattle, United States
Duration: May 24 2017May 26 2017

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Other2017 American Control Conference, ACC 2017
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'DC bus voltage regulation using photovoltaic module: A non-iterative method'. Together they form a unique fingerprint.

Cite this