Distributed generators (DG) brings about great environmental benefits which makes it worth researching. In order to optimize the grid-connected positions and capacities of various types of DG, a multi-objective model is established. The total generation cost of DG, the network loss and static voltage stability indices are synthetized in the model. Additionally, a kind of improved multi-objective free search (IMOFS) optimization method is proposed. This algorithm adaptively adjusts searching radius and step to improve searching efficiency. According to the period of evolution, the previous sear...
