Selective harmonics elimination technique in single phase unipolar H -bridge inverter
Specific odd harmonics can be mitigated by operating the semiconductor switches in H-bridge inverters at optimized switching angles of the PWM signals. These switching angles can be achieved by deriving a set of nonlinear equations using Selective Harmonic Elimination Pulse Width Modulation (SHE-PWM...
| Main Authors: | , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
IEEE
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/53995/ http://irep.iium.edu.my/53995/ http://irep.iium.edu.my/53995/ http://irep.iium.edu.my/53995/13/53995.pdf http://irep.iium.edu.my/53995/19/53995-Selective%20harmonics%20elimination%20technique%20in%20single%20phase%20unipolar%20H%20-bridge%20inverter_SCOPUS.pdf |
| Summary: | Specific odd harmonics can be mitigated by operating the semiconductor switches in H-bridge inverters at optimized switching angles of the PWM signals. These switching angles can be achieved by deriving a set of nonlinear equations using Selective Harmonic Elimination Pulse Width Modulation (SHE-PWM) technique. Modulation index (ma) is a significant parameter used to control the amplitude of the fundamental output voltage of DC-AC inverter. By changing the value of modulation index the Total Harmonics Distortion (THD) also will change. In this paper, the performance of single phase H-bridge inverter using SHE-PWM scheme with varying the modulation
index is evaluated. In order to achieve a minimum THD, a different number of nonlinear equations are used to calculate the switching angles. The performance of a single phase H-bridge inverter is simulated in Matlab-Simulink. |
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