Turkish Journal of Electrical Engineering and Computer Sciences
Abstract
This paper proposes an optimized synchronous PWM method for harmonic elimination in a quasi square wave inverter. The synchronized PWM method enables online harmonic computation and PWM pulse generation in a multitasking digital controller to eliminate lower order harmonics. The multitasking digital controller reduces the look-up table requirement and helps in realizing efficient implementation to eliminate dominant harmonics. This method offers a simple scalable solution for combined fifth and seventh harmonic elimination using two low-cost eight-bit PIC microcontrollers (PIC18F4550, PIC18F452). Experimental results are demonstrated for a single-phase three-level inverter. The proposed method achieves 90$\% $ reduction of fifth and seventh harmonic components from a quasi square wave inverter output.
DOI
10.3906/elk-1806-153
Keywords
Pulse width modulation, synchronized architecture, harmonic elimination, fast Fourier transform
First Page
4456
Last Page
4471
Recommended Citation
GOPINATH, V, NAIR, M, BISWAS, J, & BARAI, M (2019). An optimized harmonic elimination method based on synchronized microcontroller architecture. Turkish Journal of Electrical Engineering and Computer Sciences 27 (6): 4456-4471. https://doi.org/10.3906/elk-1806-153
Included in
Computer Engineering Commons, Computer Sciences Commons, Electrical and Computer Engineering Commons
