A novel optimization harmonic elimination technique for cascaded multilevel inverter
The main goal of utilizing Selective Harmonic Elimination (SHE) techniques in Multilevel Inverters (MLI) is to produce a high-quality output voltage signal with a minimum Total Harmonic Distortion (THD). By calculating N switching angles, SHE technique can eliminate (N-1) low order odd harmonics of...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Institute of Advanced Engineering and Science
2019
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/72275/ http://irep.iium.edu.my/72275/ http://irep.iium.edu.my/72275/ http://irep.iium.edu.my/72275/7/72275%20A%20novel%20optimization%20harmonic%20elimination%20technique%20for%20cascaded%20multilevel%20inverter.pdf http://irep.iium.edu.my/72275/13/72275_A%20novel%20optimization%20harmonic%20elimination%20technique%20for%20cascaded%20multilevel%20inverter_Scopus.pdf |
| Summary: | The main goal of utilizing Selective Harmonic Elimination (SHE) techniques in Multilevel Inverters (MLI) is to produce a high-quality output voltage signal with a minimum Total Harmonic Distortion (THD). By calculating N switching angles, SHE technique can eliminate (N-1) low order odd harmonics of the output voltage waveform. To optimized and obtained these switching angles, N of nonlinear equations should be solved using a numerical method. Modulation index (m) and duty cycle play a big role in selective harmonic elimination technique to obtain a minimum harmonic distortion and desired fundamental component voltage. In this paper, a novel Optimization Harmonic Elimination Technique (OHET) based on SHE scheme is proposed to re-mitigate Total Harmonic Distortion. The performance of seven-level H-bridge cascade inverter is evaluated using PSIM and validated experimentally by developing a purposely built microcontroller-based printed circuit board. |
|---|