Decentralised control of parallel inverters in an AC microgrid using downstream current as an implicit communication method

摘要: Traditional droop control in AC microgrids relies on telecommunication between a central controller and distributed generators for frequency voltage restoration. This makes optimal operation of the microgrid vulnerable to single point failure i.e. controller. The aim this paper is pro­pose decentralised strategy that supplies load with its demanded current agreed equitable fashion, based local information only using no telecommunications. Fundamental proposed concept parallel arrangement loads. In locally measured downstream used derive reference primary-level loop each generator. Use as an implicit communication method facilitates stable elimination undesired circulating currents. validates developed via detailed simulations under range realistic scenarios.