Research on autonomous decentralized control for generation systems including renewable energy

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Renewable energy such as wind power and solar power generates electric power intermittently and therefore requires backup generation or batteries. This research aims to develop the optimal control system for electric power supply including renewable energy based generators. For that purpose, system frequency control which maintains the real power balance between supply and demand was reviewed. The authors proposed a framework for dispersed local generators to contribute toward the frequency control and verified it with computer simulations. System voltage control system to maintain the reactive power balance on each node was also reviewed. The cooperative control method of conventional equipment and up-to-date one was proposed and verified.