Bidirectional battery charger for electric vehicles

Because of deplation of fossil sources and its detriment to nature, proportion of usage of renewable energy sources at production energy is increasing fastly. Power elektronik has fundamental position at renewable energy sources produsing, using and storing. In the transportation sector, the use of elektric vehicles as an alternative to fossil based vehicles has been taken an option by researches and it has become possible to make more efficient elektrik vehicles with the developing technology. The different modes of use of electric vehicle technology have emerged along with the developments that have been experienced. Charging the batteries of electric vehicles (G2V-Grid to Vehicle), power supply to the network from electric vehicles (V2G), the use of electric vehicles to correct fluctuations and harmonics in the network (V4G), charging the electric vehicle over the house (H2V), use of electric vehicles as uninterruptible power supply (UPS) against mains interruption and home electric power supply from electric vehicle (V2H) situations are confused as the form of use of electric vehicles. One of the biggest problems in electric vehicles is the storage of electric energy. With the improvements in battery technology and increased efficiency in power electronics, the storage of electrical energy is a problem. The types of AD-DC inverter and DC-DC converter that are used to convert the AC voltage to the DC batteries charge voltage are mentioned in this thesis. Direct charging of electric vehicles batteries via mains (G2V), charging the battery over the house (H2V), powering home via electric vehicle (V2H) and in addition to operating the electric motor, the battery charger being used as an uninterruptible power supply (UPS) against electrical interruptions while charging modes have been studied in detail. In the thesis study, literature review is given in section 1 and in section 2, information on the development and types of electric vehicle technology up to the day is given. In section 3, information on power electronics circuit components and battery technology is given. In section 4, AC-DC inverter types, DC-DC converter types and their control methods are examined. In section 5, Direct charging of electric vehicles batteries via mains (G2V), charging the battery over the house (H2V), powering home via electric vehicle (V2H) and in addition to operating the electric motor, the battery charger being used as an uninterruptible power supply (UPS) against electrical interruptions while charging modes and their simulation results are given. The results of the study in section 6 are given.