Low-Voltage Regulation Device Based on IGBT Combination Switches

With the rapid development of the economy in rural areas, the residents of the stable reliability of the power supply has put forward higher requirements, but due to the agricultural network has a long transmission radius, weak network structure and other characteristics, resulting in the existence of serious low voltage problems at the end of the line. This paper synthesizes the advantages and disadvantages of the existing low-voltage management technology, and puts forward a low-voltage management technology scheme based on IGBT combinational switch, which is connected to the end of the 10kV line through two transformers in series and parallel, and utilizes the IGBT combinational switch as a transformer tap casting and cutting device to control the regulation of line voltage. The principle analysis and simulink simulation model verification of the scheme, and through the parameter design to complete the prototype development, and finally the prototype test to verify the correctness and effectiveness of the scheme.