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Power take-off vehicle-mounted power supply system realized by direct-current voltage sampling circuit

A sampling circuit and DC voltage technology, applied in the direction of measuring current/voltage, measuring only voltage, measuring electrical variables, etc., can solve the problems of complex installation, insufficient flexibility of road pipelines, large volume and weight, etc., and achieve reduced jitter and fast time , the effect of optimal control parameters

Active Publication Date: 2021-03-09
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of this technology is that the volume and weight are large, the road pipeline is not flexible enough, and the installation is complicated

Method used

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  • Power take-off vehicle-mounted power supply system realized by direct-current voltage sampling circuit
  • Power take-off vehicle-mounted power supply system realized by direct-current voltage sampling circuit
  • Power take-off vehicle-mounted power supply system realized by direct-current voltage sampling circuit

Examples

Experimental program
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Effect test

Embodiment

[0056]The vehicle power controller uses TI's DSP chip TMS320F28335 that controls all switch logic and PWM output, including the PWM output of the excitation power source. The preamplifier is a rectifier and exciting power supply. It controls the end voltage and uncontrollable generator; the post is inverter, and the DC voltage reverse becomes 380V three-phase AC output to the load. The DC input of the excitation power supply is provided by a generator coaxial generator. After a regulated power supply is stabilized at 80V, then the exciting bridge circuit is subjected to the controlled excitation current to provide the generator excitation circuit, so that the generator output is output. The voltage is stable in 430V. This has a 50V adjustment space.

[0057]The generator can be added to 500 and the high speed 3000 can be added to the corresponding excitation current, and the terminal voltage of 430 V is output. The exciting system in the generator is substantially linear relationship, ...

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Abstract

The invention discloses a power take-off vehicle-mounted power supply system realized by a direct-current voltage sampling circuit. The power take-off vehicle-mounted power supply system comprises a rectifier diode, a direct-current capacitor, an inverter circuit, a controller, an excitation power supply and a small-capacity direct-current sampling circuit, wherein the rectifier diode receives alternating current generated by the generator, rectifies the alternating current into pulsating direct current and outputs the pulsating direct current to the direct current capacitor; the direct-current capacitor is used for filtering the received pulsating direct current to obtain straight direct current and outputting the straight direct current to the inverter circuit; the inverter circuit is used for inverting the straight direct current into stable alternating current under the control of the controller so as to be used by an external load; and the small-capacity direct-current sampling circuit collects the voltage of alternating current generated by the generator in real time and converts the voltage into sampling direct current. According to the invention, the light load stability and the feedback rapidity are improved.

Description

Technical field[0001]The present invention belongs to the field of in-vehicle power supply, and more particularly to a power supply vehicle power supply system implemented by a DC voltage sampling circuit.Background technique[0002]The in-vehicle power supply is a typical military and civilian combination of products. On missile launcher and large engineering machine, even on civil trucks, there is a high-power 380V three-phase load, which requires high-power 380V three-phase power supply. Increasing a diesel power in the automobile leads to increased cost, complicated, and is already an outdated solution. The more reasonable way is to connect the generator directly to the automotive engine, but in this way, a new problem is produced. During the speed of the engine, the speed is rapidly changed, and the range is still very wide, there is several different gaps. The output voltage and frequency of the generator will be several times, which is unacceptable to the electrical appliance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/30G01R19/00
CPCH02P9/30G01R19/0084
Inventor 何超王潞钢姜涛
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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