Near-optimal, dynamic module reconfiguration in a photovoltaic system to combat partial shading effects

Xue Lin, Yanzhi Wang, Siyu Yue, Donghwa Shin, Naehyuck Chang, Massoud Pedram

Research output: Chapter in Book/Entry/PoemConference contribution

39 Scopus citations


Partial shading is a serious obstacle to effective utilization of photovoltaic (PV) systems since it can result in significant output power degradation for the system. A PV system is organized as a series connection of PV modules, each module comprising of a number of series-parallel connected cells. This paper presents modified PV cell structures with integrated switches, imbalanced cell connection topologies for PV modules, and a dynamic programming algorithm to produce near-optimal reconfigurations of each PV module with the goal of maximizing the system output power level under any partial shading patterns. Through simulations, we have demonstrated up to a factor of 2.3X improvement in the output power level of a PV system comprised of 3 PV modules with 60 PV cells per module.

Original languageEnglish (US)
Title of host publicationProceedings of the 49th Annual Design Automation Conference, DAC '12
Number of pages6
StatePublished - 2012
Externally publishedYes
Event49th Annual Design Automation Conference, DAC '12 - San Francisco, CA, United States
Duration: Jun 3 2012Jun 7 2012

Publication series

NameProceedings - Design Automation Conference
ISSN (Print)0738-100X


Other49th Annual Design Automation Conference, DAC '12
Country/TerritoryUnited States
CitySan Francisco, CA


  • dynamic programming
  • partial shading
  • photovoltaic module reconfiguration
  • photovoltaic system

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Modeling and Simulation


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