A novel technique for real time implementation of SHE PWM in single phase matrix converter

Abstract

Original scientific paper In this paper, a real time implementation of selective harmonic elimination pulse width modulation (SHEPWM) using a new technique known as Linearization Method for single phase Matrix converter (SPMC) is designed and discussed. SHEPWM for SPMC is designed using Real coded genetic algorithm (RGA), particle swarm optimization (PSO) and firefly algorithm (FFA). From the switching angle trajectory of these techniques, the trajectory of LM is designed. In the proposed technique, the optimum switching angles are obtained using simple mathematical calculations. A MATLAB simulation was carried out and FFT analysis of the simulated output voltage waveform confirms the effectiveness of the proposed method. An experimental setup was also developed and the switching angles and firing pulses are generated using Field Programmable Gate Array processor. The proposed method proves that it is much applicable in the industrial applications by virtue of its suitability in real time applications. Keywords: Particle Swarm Optimization; Real Coded Genetic Algorithm; Selective Harmonic Elimination Pulse Width Modulation; Single Phase Matrix Converter Nova metoda za implementaciju SHE PWM u stvarnom vremenu za jednofazni matrični pretvaračIzvorni znanstveni članak Predmet ovoga rada je dizajniranje i rasprava o implementaciji SHEPWM (Selective Harmonic Elimination Pulse Width Modulation) u stvarnom vremenu uz primjenu nove metode poznate kao Metoda linearizacije za jednofazni matrični pretvarač (Single Phase Matrix Converter -SPMC). SHEPWM za SPMC dizajniran je primjenom Real coded genetic algoritma (RGA), optimizacije roja čestica (PSO) i firefly algoritma (FFA). Iz putanje prespojnog kuta tih tehnika, dizajnira se LM putanja. U predloženoj metodi, optimalni prespojni kutovi se dobivaju jednostavnim matematičkim izračunima. Provedena je MATLAB simulacija i FFT analiza simuliranog valovitog gibanja izlaznog napona potvrđuje učinkovitost predložene metode. Razvijen je i eksperimentalni postav a prespojni kutovi i impulsi paljenja razvijeni su pomoću Field Programmable Gate Array procesora. Predložena metoda dokazuje da se može uvelike rabiti u industrijskim primjenama zbog njene prikladnosti za primjene u stvarnom vremenu.