Research on Control Strategies of a Stand-alone Photovoltaic System

Authors

  • Qiu Bin Jiangsu Key Laboratory of New Energy Generation and Power Conversion,Nanjing University of Aeronautics and Astronautics Author
  • Ma Yundong Jiangsu Key Laboratory of New Energy Generation and Power Conversion,Nanjing University of Aeronautics and Astronautics Author

DOI:

https://doi.org/10.24084/repqj10.428

Keywords:

AC PV system, MPPT(Maximum Power Point Tracking), Stand-alone mode, Power management

Abstract

In  order  to  assure  that  the  system  can  run  stably  under  different  modes,  energy  storage  equipment—Lead-Acid  battery  is  added  to  the  conventional  two-stage  PV  system.  PV  panels and batteries are parallel connected to the DC-bus through a  unidirectional  Boost  converter  and  a  bidirectional  Buck/Boost  converter respectively. A full bridge inverter is linked to the DC-bus as the second stage of the system which is in charge of DC-AC  power  transforming  for  the  AC  loads.  Control  methods  and  power   management   strategies   of   a   two-stage   stand-alone   photovoltaic   system   are   proposed   in   this   paper.   A   500W   experiment  prototype  is  constructed  to  verify  the  theoretical  analysis   of   the   control   methods   and   power   management   strategies. 

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Published

2024-01-17

Issue

Vol. 10 No. 5 (2012)

Section

Articles