Inverter Based DGs for Power Quality Enhancement and Protection in Distribution Network

aSanivada Jnardhana Rao, C. Sree Hari Babu


In this paper, a new three-phase wind energy inverter (WEI) with flexible AC transmission system (FACTS) capability is presented. The proposed inverter is placed between the wind turbine and the grid, same as a regular WEI, and is able to regulate reactive power transferred to the grid. The goal of this paper is to introduce new ways to increase the penetration of renewable energy systems into the distribution systems. This will encourage the utilities and customers to act not only as a consumer, but also as a supplier of energy. Moreover, using the new types of converters with FACTS capabilities will significantly reduce the total cost of the renewable energy application. In this paper, modular multilevel converter is used as the desired topology to meet all the requirements of a three-phase system such as efficiency, and total cost of the system. The simulations for an 13-level inverter have been done in MATLAB/Simulink.

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