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http://dx.doi.org/10.6113/TKPE.2010.15.4.266

Study on the Harmonic Extraction Technique of the Power Conditioning System using High Performance DSP Controller  

Lee, Jeong-Eun (충주대 전기공학과)
Min, Jun-Ki ((주)다쓰테크 기술연구소)
Kim, Il-Song (충주대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.15, no.4, 2010 , pp. 266-273 More about this Journal
Abstract
The main function of the power conditioning system (PCS) is grid-connection with renewable system. The level of total harmonic distortion(THD) caused by the PCS should be maintained less than 5% according to the IEEE-1547 regulation. The THD is measured by the dedicated instrument, not by the PCS in the domestic products. There should be the necessity for harmonic measurement by the PCS in order to cope with degradation or fault condition. In this paper, the real-time harmonic measurement technique using highperformance DSP controller is presented. The proto-system is manufactured using 32-bit floating DSP processor and tested with 256-point DFT(Discrete Fourier Transform) algorithm. The test result shows that the harmonic calculation time is less than 1 [ms]. It can be used as a auxiliary method for predicting the fault in the PCS system.
Keywords
Harmonic extraction; PCS; DFT; THD; DSP;
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