Implementation Hardware of single phase H-Bridge Inverter with Selective Harmonic Elimination Pulse Width Modulation Technique
Arati Gokul Anandkar1, K.S. Gadgil2
1Miss. Arati Gokul Anandkar, Student of Department of Electrical Engineering, AISSMS IOIT , Pune, India.
2Mrs. K.S. Gadgil, Assistant Professor, Department of Electrical Engineering, AISSMS IOIT , Pune, India.
Manuscript received on 20 August 2019. | Revised Manuscript received on 03 September 2019. | Manuscript published on 30 September 2019. | PP: 1089-1092 | Volume-8 Issue-11, September 2019. | Retrieval Number: J11770881019/2019©BEIESP | DOI: 10.35940/ijitee.J1177.0981119
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Abstract: Recently the use of high power Voltage Source Inverter is increased but the problem of harmonic and switching losses in inverter are also increased because of the use of power electronic switches, which are used for fast and efficient operation. In this paper, for eliminating the harmonics presented in H Bridge inverter during switching operation of the power electronic switches the Selective Harmonic Elimination Pulse Width Modulation (SHEPWM) Technique is used. For H-Bridge operation specific switching angles are calculated by solving nonlinear equation using Newton Raphson method. The result of H-bridge single phase inverter are implemented on hardware with and without SHEPWM technique for eliminated specific 3 rd,5th,7th,9th,11th,13th voltage harmonics are obtained. Comparison of harmonic analysis of H bridge inverter with and without SHEPWM technique is done. In this paper Modulation index (m) is varied to control output voltage amplitude and the results are observed for maximum modulation index.
Keywords: H-bridge Inverter, Selective Harmonic Elimination (SHE), Pulse width modulation (PWM), Voltage harmonics
Scope of the Article: Frequency Selective Surface