Design and Implementation of a Single-Phase Low-Frequency Pure Sine Wave Inverter Using the EGS002 Module

The study aims to design and implement a series of low-frequency single-phase inverters that produce pure sinus waves using the EGS002 module. The system uses a 12V DC voltage supply and implements an H-Bridge topology with parallel MOSFETs to reduce heat. To maintain the components and the life of the grid, low voltage restriction is carried out using the LVD grid set at the voltage limit of 10.26 volts. Testing is performed using resistive and inductive loads that represent household appliances. The test results showed that the inverter produced an average power factor of 0.64 with a calculation of 0.67 and an error of 6% out of 10 experiments with a resistive load. For inductive loads, the inverter generates an average power factor of 0.89 and 0.91, with an error of 3% in 6 trials. This series of inverters produces pure sinus waves with little distortion and a low frequency of 50 Hz, similar to the frequencies generated by PLN power sources. This inverter can handle loads of up to 500 watts with the appropriate battery capacity.