Notice of RetractionInter-harmonics/sub-harmonics analysis based on odd points interpolation correction

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

Inter-harmonics/sub-harmonics is a kind of harmonics that are not an integer of the fundamental frequency component. The inter-harmonics/sub-harmonics has serious impacts on the design of harmonics compensation equipments and serious damage to the power system as same as the integer harmonics. So it is important to measure them accurately. The Fast-Fourier-Transform (FFT) has been widespread used in electric power harmonic analysis. But the asynchronous sampling will make harmonic analysis incorrect by use this algorithm. This paper will introduce a new method which is presented to reduce the leakage while interpolating. According to the FFT results, the phase angles of adjacent lines of side lodes could be against by phase rotation adjustment. Then use interpolation method to work out the frequency, amplitude and phase. Then removal every component that has being worked out in 100Hz from original sample, one can get the dc voltage directly. At the end of this paper, the data from a wind power station are calculated on Matrix Laboratory (Matlab).The results prove this method has a desirable accuracy.