Study on unified control of grid-connected generation and harmonic compensation in dual-stage high-capacity PV system

  • Jing Li
  • , Fang Zhuo
  • , Jinjun Liu
  • , Xianwei Wang
  • , Bo Wen
  • , Lin Wang
  • , Song Ni

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

In this paper, a novel high-capacity grid-connected photovoltaic (PV) system based on Boost converter + dual-level four-leg inverter is proposed, which can perform both grid-connected system and active power filter (APF). Comparing with single-stage three-phase three-wire PV system, the proposed system not only allows a wide range of input voltage, but also can compensate unbalance loads current. This paper explains the control principle of unified control strategy of combination of PV grid-connected injection and active power filtering in detail. And the key of unified control is the current reference generation. Simulation results on MATLAB/Simulink are presented to demonstrate practicability of the unified control strategy. Applying proposed topology and control method to a 100kVA grid-connected PV system based on FPGA+DSP controller, the experimental results are given to verify correctness of the whole system and unified control strategy.

Original languageEnglish
Title of host publication2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Pages3336-3342
Number of pages7
DOIs
StatePublished - 2009
Event2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 - San Jose, CA, United States
Duration: 20 Sep 200924 Sep 2009

Publication series

Name2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009

Conference

Conference2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Country/TerritoryUnited States
CitySan Jose, CA
Period20/09/0924/09/09

Keywords

  • Active power filter
  • Dual-level
  • Four-leg
  • PV grid-connected injection
  • Two-stage

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