Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 56, Issue 11, Pages 4492-4501Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2009.2017820
Keywords
Current harmonic content; grid-connected inverter; linear current regulator; photovoltaic (PV) power system
Categories
Funding
- Spanish Ministry of Science and Technology [ENE2006-15521-C03-01]
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The injection of low-harmonic current to the electrical grid is nowadays regulated by international standards. In order to accomplish these standards, selective harmonic compensation is carried out in grid-connected photovoltaic inverters by means of resonant harmonic compensators. This paper gives a systematic design procedure for selecting the gains and parameters of these harmonic compensators. Other factors considered in the design process include frequency deviation, grid synchronization, and transient response. Both a design example meeting the requirements of grid interconnection and selected experimental results from a digital-signal-processor-based laboratory prototype are also reported.
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