Novel Reduced Switch Multilevel Inverter Suitable for Photovoltaic Application with Selective Harmonic Elimination Control

2018 ◽  
Author(s):  
Prabhat Ranjan Bana ◽  
Kaibalya Prasad Panda ◽  
Gayadhar Panda
Keyword(s):  
Multilevel Inverter ◽  
Photovoltaic Application ◽  
Harmonic Elimination ◽  
Selective Harmonic Elimination

FPGA Based Selective Harmonic Elimination Technique for Multilevel Inverter

2018 ◽  
Vol 9 (1) ◽  
pp. 166 ◽  
Author(s):  
T. Porselvi ◽  
K. Deepa ◽  
R. Muthu
Keyword(s):  
Power Generation ◽  
Lower Order ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
New Technique ◽  
Harmonic Elimination ◽  
Selective Harmonic Elimination ◽  
Medium Range ◽  
Field Programmable ◽  
A New Technique

Harmonic elimination at the fundamental frequency is very much appropriate for high and medium range of power generation and applications. This paper considers a new technique for selective harmonic elimination (SHE), in which the total harmonic distortion (THD) is minimized when compared with that of the conventional one. With this technique, the harmonics at lower order are eliminated, which are more predominant than the higher ones.Cascaded H-Bridge inverter fed by a single DC is considered which is simulated with the switching angles generated by both the conventional method of SHE and the new method of SHE. The simulated results of the load voltage and the waveforms of the harmonic analysis are shown. The THD values are compared for the two techniques.  The experimental results are also shown for the new technique. The switching angles are generated with the help of field programmable gated array (FPGA) in the hardware. The value of experimental THD of voltage is compared with that of simulated THD and the comparison prove that the results are satisfactory.

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