A high-power power supply device capable of obtaining a stable output from a variable speed input

Abstract

The invention relates to a high-power power supply device capable of obtaining a stable output from a variable speed input. The generator provides a direct current and is converted into an alternatingcurrent output power supply by an inverter. The inverter comprises an input filter circuit, an IPM power module, an output filter circuit, a sampling signal board and a main control board. The inputfilter circuit filters the direct current supplied by the generator, The IPM power module transforms the DC electric chopping wave into SPWM wave, and outputs the SPWM wave after filtering through theoutput filter circuit. The sampling signal board collects the output voltage amplitude and sends it to the main control board. The main control board adjusts the pulse width of SPWM wave according tothe voltage amplitude, and carries out PID control. The invention transfers the electric power with unstable voltage and frequency from the generator to the conversion power source through the outputcable, and outputs the electric power with stable voltage and frequency after the power source is processed, so as to ensure the reliability and economy of the vehicle-mounted power supply and distribution system.

Description

technical field [0001] The invention relates to a high-power power supply device capable of obtaining stable output from variable speed input, and belongs to the technical field of high-power power supply. Background technique [0002] At present, domestic and foreign military special vehicles mainly use diesel engines. The normal working speed of the engine varies from 650 to 2500 rpm, and the ratio of low speed to high speed speed reaches 1:4. Using a direct drive generator for power supply requires a certain technical approach to achieve stable voltage, frequency and power output. At present, several commonly used on-board power generation technology solutions are as follows: [0003] (1) Mechanical drive parking power generation scheme - the chassis engine directly drives the generator through the power take-off to supply power. This solution is difficult to adjust the speed and difficult to arrange and install. Generally, it is only suitable for parking power generatio...

AI Technical Summary

Problems solved by technology

This solution is difficult to adjust the speed and difficult to arrange and install. Generally, it is only suitable for parking power generation, so that the engine speed is fixed at a certain value, which cannot meet the requirements for driving power generation;

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