By Uppuluri Suryavalli, Vaibhav Vivek Deshmukh and V. S. S. Pavan Kumar Hari
Department of Energy Science and Engineering,
Indian Institute of Technology Bombay, Mumbai, India
Abstract - Analytical evaluation of the harmonic spectra pertaining to pulse width modulated (PWM) voltage waveforms, using double Fourier series, is a computationally intensive exercise. This paper presents simple closed-form expressions for the Fourier coefficients of output voltage in a two-level voltage source inverter operated with regular symmetrically-sampled sine-triangle PWM. The proposed approach is based on Fourier theory of jumps and doesn't involve integration. Simulation and experimental results are presented to validate the proposed analytical approach.
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