<![CDATA[. Renewable energy has become an alternative solution to the dependence on fossil fuels, which produce pollution and cause environmental damage. Solar Power Plants (SPP) are a type of power plant that has been widely developed, based on solar cells arranged into solar panels with various configurations for their utilization. SPPs require an inverter in their system, making the inverter's role crucial as a link between the DC power source and the AC electrical load. The inverters implemented in SPP systems are very diverse, for example, the very conventional push-pull inverter. The implementation then evolved using a quasi-sinusoidal inverter with an H-bridge topology with three arms. Meanwhile, inverters better known for their superior performance are H-bridge inverters with bipolar and unipolar switching control. The control methods for these two inverters are based on Sinusoidal Pulse Width Modulation (SPWM) with different configurations. Inverters implemented in a solar power generation system must meet specific criteria and standards. Therefore, the Single-Phase Three-Arm Inverter controlled by an Arduino Mega 2560 is a solution for SPPs. With a three-arm H-bridge topology, this inverter is an improvement over the conventional H-bridge inverter. The additional arm minimizes distortion/disturbance in the current and increases the power conversion capacity of the inverter. With the increase in the number of semiconductor components, the stress and heat load on each component will be more evenly distributed. The minimum system of the Arduino Mega 2560 can control this inverter and reduces the cost of its implementation. The output waveform of this inverter has minimal disturbance and can convert high power. The output voltage of this inverter can meet the standards of PT PLN (the Indonesian state electricity company) and has been tested under resistive and inductive loads]]>
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