Návrh napěťového střídače pro trakční pohony

Abstract

This thesis deals with the design of a three-phase voltage inverter. It is divided into five sections, with the first section addressing the theoretical operating principle and describing the individual blocks. The second section addresses the design of the inverter’s power section, with an emphasis on the proper design of the voltage circuit. The following two sections then analyze the circuit design of the transistor drivers, the auxiliary power supply, and the electrical quantity sensors. Separate printed circuit boards were created for these blocks. The final section covers the testing of the device. During testing of the proposed device, vector control of a permanent magnet synchronous motor was performed to verify the correct operation of all device blocks. Subsequently, the device was tested with a purely inductive load.