Two-Level Voltage Inverter: Parametric Synthesis of Filter and Controllers

The article is devoted to the synthesis of the parameters of a 115 V/400 Hz AC generation system based on a two-level three-phase voltage inverter with an output LC filter, a four-wire load connection and a two-loops automatic control system. Based on the analysis of electromagnetic processes in the circuit and mathematical modeling the procedure of selecting the parameters of an L-shaped LC filter is considered. The synthesis of controllers is described using the method of formation of multi-time-scale processes in the control system. Proportional-integral controllers are used to control inverter output current and load voltage. The analysis of the processes in system was carried out for different parameters of the controllers. The synthesis of the parameters of the generation system was carried out in accordance with the requirements of GOST R54073-2017. Compliance of the obtained results with the specified requirements for the quality of the output voltage is confirmed by simulation modeling in the Matlab/Simulink environment.