Elektrikli araçlar için aktif ve pasif batarya kontrolü

Battery technology is developing every day and usage rate is increasing day by day. Particularly with the spread of electric vehicles, battery usage will also increase. In this way, the work done in the battery field will become more important. Generally, battery-based systems consist of many battery cells. In systems consisting of several battery cells, it is important to ensure that the batteries can be charged and discharged in the same amount, in terms of the effective use of the total energy and the prolongation of the battery life. This system is called battery management system. Two different battery management systems based on passive and active methods have been designed and implemented for use in electric vehicles in the proposed thesis. The first of these battery management systems includes both active and passive balancing, and the second includes only passive balancing. Resistance based passive control method was used in both battery management systems. metal oxide semiconductor field effect transistor switching elements have been used as a load instead of resistance. For this purpose, an original digital analog converter circuit was designed and used in passive balancing systems. In the first battery management system, active balancing method was applied in addition to passive balancing method. A circuit topology was designed in which both control methods could be applied. The application for two methods was successfully performed. A circuit design in which active and passive balancing methods can be applied in the same circuit topology was made for the first time in the literature. In this respect, a new circuit topology has been introduced to the literature. The applicability of these methods has been tested with two different experimental systems. The successful operation of these systems has been proved by the obtained experimental results.