What is the DC boost voltage of the inverter

As obvious from the name, this type of inverter is developed in which the output voltage is greater than the input DC voltage. Boost inverter has a DC-DC boost converter in between DC source and the inverter, which first amplifies the DC voltage level and then feeds it to the inverter.

Thus if an output voltage higher than the input one is needed, a boost dc-dc converter must be used between the dc source and inverters. Depending on power and voltage level involved, this solution can result in high volume, weight, and cost and reduce efficiency.

The full bridgetopology can however be used as a boost inverter that can greater an output ac voltage higher than the input dc voltage. A traditional design methodology is the use of buck inverter. One of the characteristics of the most classical inverter is that it produces an AC output instantaneous voltage always lower than the dc input voltage.

The boost converter will step up the solar panel voltage to the suitable voltage required by electronic equipments. For AC electrical equipments, the system requires an additional AC-DC inverter which converts the constant DC voltage to AC voltage. This system is called dual power processing stage system.

The reason for this starts from the principle of the power inverter. For the DC-DC-BOOST circuit of the string inverter, the DC voltage needs to be boosted and stabilized to a certain value (this is called the DC bus voltage) before it can be converted to AC power. As to the 230V output, its DC bus voltage should be about 360V.

Among various possibilities, the solar cell is an instinct source of energy, which is increasingly being studied, researched and for conversion of electrical energy. In this paper we have studied dc to ac conversion technique using boost inverter with solar energy stored via PV cells in a battery as input.