Microcontroller Based SPWM Single-Phase Inverter For Wind Power Application
Journal: International Journal of Scientific & Technology Research (Vol.6, No. 4)Publication Date: 2017-04-15
Authors : Khin Ohmar Lin; Hla Myo Tun; Zaw Min Naing; Win Khine Moe;
Page : 189-192
Keywords : Microcontroller; SPWM; single-phase inverter; wind-power generator; PIC16F877A;
Abstract
In this paper microcontroller based sinusoidal pulse width modulation SPWM single-phase inverter is emphasized to constant frequency conversion scheme for wind power application. The wind-power generator output voltage and frequency are fluctuated due to the variation of wind velocity. Therefore the AC output voltage of wind-generator is converted into DC voltage by using rectifier circuit and this DC voltage is converted back to AC voltage by using inverter circuit. SPWM technique is used in inverter to get nearly sine wave and reduce harmonic content. The rating of inverter is 500W single-phase 220V 50 Hz. The required SPWM timing pulses for the inverter are generated from the PIC16F877A microcontroller. Circuit simulation was done by using Proteus 7 Professional and MATLABR 2008 software. The software for microcontroller is implemented by using MPASM assembler.
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Last modified: 2017-06-11 23:00:38