Abstract
An island generally has a separate electrical power system from power plant center. The power system of an island has its own generating system with limited power capacity. Such a case occurred on the Selayar Island of South Sulawesi. Selayar island has 11 diesel generators that act as the main electric power supply. The total capacity of such generators is 13.17 MW. Selayar island is a tourism destination by local and foreign tourists. The large number of tourists visiting the island of Selayar has caused increase of the electricity load. The increase in electrical loads makes the generator unable to meet the needs of electrical power, especially during peak load conditions. The lack of power resulted in undervoltage on the bus. One solution to overcome the problem is interconnect photovoltaic to the electric power system. It is necessary to be careful to choose placement the photovoltaic interconnection because if it is misplaced it can cause overvoltage on the bus. Therefore, this paper aims to analyze of new power flow after being interconnected with photovoltaic. In the method, several photovoltaic placement scenarios are made so that the power flow becomes better than the conditions before the photovoltaic interconnected. In addition, so that there are no disturbances such as overvoltage or undervoltage. An indicator of the success of this study when the voltage is at the safe margin of operation and all loads get a sufficient supply of power.
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