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Ultra-high-speed generator rectifier based on automatic energy consumption matching

A generator and rectifier technology, applied in electrical components, output power conversion devices, DC power input to DC power output and other directions, can solve problems such as energy mismatch, to ensure stable power supply, realize speed limit, and ensure safety Smooth running effect

Active Publication Date: 2015-04-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention aims to solve the problem of energy mismatch between the independent power supply system for power generation and the load when the existing generator outputs a constant voltage to supply power to the load through a power converter. The invention provides an ultra-high-speed generator based on automatic energy consumption matching rectifier

Method used

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  • Ultra-high-speed generator rectifier based on automatic energy consumption matching
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  • Ultra-high-speed generator rectifier based on automatic energy consumption matching

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specific Embodiment approach 1

[0050] Specific implementation mode one: see figure 2 Describe this embodiment, a kind of ultra-high-speed generator rectifier based on automatic energy consumption matching described in this embodiment, it is the generator rectifier of series energy consumption matching, it includes three-phase rectifier bridge 1, buck step-down power conversion Device 2, energy consumption matching circuit 3, drive circuit 4, controller 5 and capacitor C on the 1st 1 ;

[0051] Buck step-down power converter 2 includes No. 1 power switch tube Q1, No. 2 power switch tube Q2, inductor L and No. 2 capacitor C 2 ;

[0052] The energy consumption matching circuit 3 includes a No. 3 power switch tube Q3 and a resistor R,

[0053] The three-phase current input terminal of the three-phase rectifier bridge 1 is used to connect with the three-phase current output terminal of the ultra-high-speed generator,

[0054] The output terminal of the positive power supply of the three-phase rectifier brid...

specific Embodiment approach 2

[0073] Embodiment 2: The difference between this embodiment and the ultra-high-speed generator rectifier based on automatic energy consumption matching described in Embodiment 1 is that the controller 5 includes a bus voltage sampling module 5-1 and a processing module 5-2 , energy consumption matching control module 5-3, output voltage sampling module 5-4, pulse width modulation module pulse width modulation module 5-5 and output constant voltage closed-loop control module 5-6;

[0074] The bus voltage signal input terminal of the bus voltage sampling module 5-1 is used as the bus voltage signal input terminal of the controller 5,

[0075] The bus voltage signal output terminal of the bus voltage sampling module 5-1 is connected to the voltage signal input terminal of the processing module 5-2, and the data signal output terminal of the processing module 5-2 matches the data signal input terminal of the energy consumption control module 5-3 connect,

[0076] The control sign...

specific Embodiment approach 3

[0080]Embodiment 3: The difference between this embodiment and the ultra-high-speed generator rectifier based on automatic energy consumption matching described in Embodiment 1 is that the processing module 5-2 is implemented by chip XC822, and the pulse width modulation module The pulse width modulation module 5-5 is realized by chip TL494.

[0081] The control part of the control system of the present invention adopts the TL494 control chip to carry out constant voltage output control and the energy consumption matching circuit controller is realized by the single-chip microcomputer XC822 of Infineon Company. The present invention uses the AD sampling function of the single-chip microcomputer to sample the bus voltage, and generates PWM through the algorithm The wave controls the energy consumption matching switch.

[0082] Its control flow chart is for example Figure 10 As shown, the AD module of the single-chip microcomputer samples the DC bus voltage, and uses the media...

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Abstract

The invention provides an ultra-high-speed generator rectifier based on automatic energy consumption matching, and belongs to the field of power electronic converters. The problem of energy mismatch between a generating independent power system and a load when the existing generator outputs constant voltage to supply power for the load through an electric energy converter is solved. The ultra-high-speed generator rectifier comprises a three-phase rectifier bridge, a buck voltage-reduction power converter, an energy consumption matching circuit, a driving circuit, a controller and a first capacitor C1, wherein the buck voltage-reduction power converter comprises a first power switch tube, a second power switch tube, an inductor and a second capacitor C2; the energy consumption matching circuit comprises a third power switch tube and a resistor R; a three-phase current inputting end of a three-phase rectifier bridge is connected with a three-phase current outputting end of an ultra-high-speed generator; and an anode power outputting end of the three-phase rectifier bridge is simultaneously connected with one end of the first capacitor C1, a bus voltage signal inputting end of the controller, an anode power inputting end of the first power switch tube and a positive pole power inputting end of the third power switch tube. The ultra-high-speed generator rectifier based on automatic energy consumption matching is mainly used in the field of generator commutation.

Description

technical field [0001] The invention belongs to the field of power electronic converters. Background technique [0002] For a long time, the emergency auxiliary power system of the aircraft including the multi-electric aircraft is usually provided by the on-board battery pack. In order to effectively reduce the weight of aircraft and achieve high specific power, multi-electric and all-electric aircraft that replace hydraulic, pneumatic, and mechanical systems with electric systems have become a new development direction in the contemporary era. In the course of the research, domestic and foreign have launched independent power supply systems for aircraft with ultra-high-speed generators as the core, and studied the feasibility of using high-energy gas brought by the flight process or gas tail flames to generate electricity. Through this high-speed airflow, the motor rotates to do work, which drives the rotor of the coaxial permanent magnet generator to rotate, and the stato...

Claims

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Application Information

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IPC IPC(8): H02M7/217
CPCH02M3/1563H02M7/217H02M3/1566
Inventor 张相军徐殿国李庚尧刘汉奎王懿杰
Owner HARBIN INST OF TECH
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