Design and analysis of a multiple input single output converter to support the development of DC house in Indonesia

摘要

Indonesia has a considerable potential for renewable energy, which is around 168GW. This potential can be utilized to support the government programs as an alternative solution to fulfill the need of electricity, especially in remote areas. One of the problems that arises is that the power generated by renewable energy sources, especially those derived from wind resources and solar radiation, is in the form of DC power while the load supplied is in the form of AC power. The conversion of DC power into AC power will cause power losses so that it will reduce the generator efficiency. One solution related to this problem is to develop DC House, i.e. a residential with DC power loads in it. In its development, a DC House can be supplied by several renewable energy sources, all of which are DC power sources. Then a converter is needed which has several input voltage sources with one output voltage or referred to as the Multiple Input Single Output (MISO) converter. This study simulates a Multiple Input Single Output (MISO) converter, which consists of 3 DC input voltage sources originating from wind power generation, solar cell and battery with one output voltage to supply DC loads. The MISO design and analysis developed emphasizes the regulation of input voltage variations from 3 different sources to produce an output voltage to be supplied to a DC bus.