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The implementation of SHE control technique for the SST with CHB seven-level waveform on the solar farm applications
Author(s)
Date Issued
March 1, 2019
Type
Conference Paper
Abstract
This proposed paper presents the use of selective harmonic elimination (SHE) technology to control the cascaded H-Bridge Multi-level Inverter (CHBMI) for power transferring over the high frequency transformer (HFT), which is a part of the SST for applying to a solar farm. Apparently, the converter is using the seven-level CHBMI and the SHE technique to get rid of the 5th harmonic and 7th harmonic to find a set of angles θ1, θ2 and 63 with the lowest 3rd harmonic. The calculated angles are used in each modules. Obviously, the simulation has shown that, at ma=2.43, θ1=11.6782°, θ2=26.8870° and θ3=56.0271°. The total harmonic distortion (% THDv) will be lowest at 9.35%. According to the experimentation, the SHE technique with low % THDv can reduce the power loss at HFT compared to the square wave transmission technique which the % THDv is high.
Citation
Ieecon 2019 7th International Electrical Engineering Congress Proceedings, 2019