DC/AC power converter for home scale electricity systems powered by renewable energy

Faizal Arya Samman, Arie Azhari
2016 2016 International Conference on Smart Green Technology in Electrical and Information Systems (ICSGTEIS)  
This paper presents the design of a single phase DC/AC Converter or Inverter for home scale electricity systems powered by renewable energy such as photovoltaic system. The power converter is controlled using a microcontroller. The inverter system is firstly modeled and simulated using SPICE, before we design it. A control software, implementing Sinusoidal Pulse-Width Modulation (SPWM) signal generator, is embedded into the microcontroller. The SPWM signal is implemented with a simple on/off
more » ... activation based on a scheduled-time. The time schedule is obtained from simulation. This approach results in a simpler program compared to another approach, where sawtooth and sinusoidal signal are compared to obtain the required SPWM signal. The inverter is tested for different load conditions. Using a few load configuration, the THD varies between 1% to 13% depending on the load types and the resistive values on the loads. The inverter output voltage amplitude is also measured, and it changes due to the load changes. (Abstract)
doi:10.1109/icsgteis.2016.7885782 fatcat:5nv74carq5aflkqe6gsafg473e