The Research Of Transformer Arcless On Load Voltage Regulating

Voltage is an important indicator of power quality, The loss of voltage result offset of electrical equipment when power system is operating.In the power system load tap commonly used method is using of on-load tap changers to regulate voltage. Low cost of the apparatus of this method, the manufacturing process is simple, but as the size of the power system grid expansion, more complex network structure, the use of mechanical load tap switch has the problems that it can not meet the power requirements of the system progress. When the transformer load tap switch will produce arcing, causing mechanical contacts burned, and the mechanical parts of the switch due to the presence of mechanical transmission, the action will lead to slower response times, high failure rate, maintenance of large, and in tune pressure in the process will be the transition process, which will adversely affect the safe operation of the power grid, these problems can not be solved from nature.On the basis of previous studies, in order to solve the traditional mechanical switch type OLTC approach problems with a proposed anti-parallel thyristor switch replace mechanical switches without arcing contacts without load tap method, The program no contact pressure regulating device essentially eliminate the arc, to build relationships with the regulator regulating winding through the state regulating winding encoded with very little control by a combination of regulating winding thyristor switch out more state regulator, thus reducing the required regulating winding thereby reducing the taps of the transformer. This article analyzes the transition process and the process of the emergence of the regulator proposes a dynamic control load voltage regulation technology.Under the scheme based on MATLAB simulation experiments to verify the correctness of the figures of the program, it can be seen through a digital simulation of the program better solution OLTC transformer winding arc during switching problem through a combination of thyristor switch non-contact control to achieve the purpose of classification, the basic realization of load tap without arcing work.