CN107493050B - Automatic DC output voltage compensation device for aviation power supply vehicle - Google Patents
Automatic DC output voltage compensation device for aviation power supply vehicle Download PDFInfo
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- CN107493050B CN107493050B CN201710943755.9A CN201710943755A CN107493050B CN 107493050 B CN107493050 B CN 107493050B CN 201710943755 A CN201710943755 A CN 201710943755A CN 107493050 B CN107493050 B CN 107493050B
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- direct current
- output voltage
- power supply
- generator
- automatic
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- 238000006243 chemical reaction Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/44—Control of frequency and voltage in predetermined relation, e.g. constant ratio
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses an automatic DC output voltage compensation device of an aviation power supply vehicle, which comprises a control panel, an engine, a generator, a rectification module and an automatic DC output voltage compensation plate, wherein the control panel, the engine, the generator and the rectification module are sequentially connected, the control panel is connected with the rectification module, and the automatic DC output voltage compensation plate is connected with the generator and the rectification module so as to facilitate the automatic linear compensation of the DC output voltage according to the DC load quantity through the aviation power supply vehicle, and achieve the effects of less used elements, high control precision, simple debugging and good stability.
Description
Technical Field
The invention relates to the technical field of aviation ground equipment, in particular to an automatic DC output voltage compensation device of an aviation power supply vehicle.
Background
The 28V direct current aviation power supply vehicle is obtained by using a three-phase 200V and 400Hz alternating current power supply emitted by an aircraft ground unit to carry out voltage reduction, full-bridge rectification and filtering, and the output voltage of the power supply is about 28.5V when the power supply is in idle load.
When the aviation power supply vehicle is powered by direct current, voltage loss can be generated by the transformer, the rectifier bridge and the power supply cable, so that the output voltage at the tail end of the power supply cable is reduced. When the direct current load capacity is large, the voltage loss is too large, so that the output voltage at the tail end of the power supply cable is reduced too much, and the requirement of the steady-state range of the direct current power supply voltage of the aircraft in 24-29V cannot be met.
The current transformer is arranged at the primary side of the transformer, the alternating current value input by the transformer is measured, the acquired alternating current value is rectified and processed to obtain a compensation signal, the compensation signal is connected into a voltage regulator of a generator to adjust the output voltage of the generator, and the characteristic that the output voltage of the generator rises along with the rising of the direct current load capacity is obtained, so that the direct current output voltage of the power supply vehicle is automatically compensated, and the direct current output voltage of the power supply vehicle is maintained within a required range. This compensation method has the following disadvantages:
firstly, in order to obtain smaller direct-current voltage pulsation, an aviation power supply vehicle adopts a 12-pulse rectification mode, the input alternating-current value of a transformer is not completely proportional to the direct-current load current value, and because of unbalanced three-phase output, rectification and processing circuits are complicated, so that the compensation circuit is difficult to debug and poor in stability.
Secondly, in the starting process of the aircraft engine, the direct current load exceeds the direct current output rated value of the aviation power supply vehicle, the current transformer continuously increases the output quantity, the direct current output voltage is excessively high in compensation, the power supply characteristic is excessively hard, and the service life of the aircraft engine is damaged.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide the direct-current output voltage automatic compensation device which has the advantages of few used elements, high control precision, simple debugging and good stability.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides an aviation supply vehicle direct current output voltage automatic compensating device, includes control panel, engine, generator, rectifier module, direct current output voltage automatic compensating plate, and control panel, engine, generator, rectifier module are connected in order, and control panel is connected with rectifier module, and direct current output voltage automatic compensating plate is connected with generator, rectifier module to do benefit to and carry out the linearity compensation to direct current output voltage is automatic according to direct current load capacity through the aviation supply vehicle, reach that the use component is few, control accuracy is high, the debugging is simple, effect that stability is good.
The automatic DC output voltage compensation board is provided with a potentiometer R1, a potentiometer R2, a DC current shunt interface, a signal conversion circuit, a microprocessor and a PWM output circuit, wherein the potentiometer R1, the potentiometer R2 and the DC current shunt interface are connected with the signal conversion circuit, and the signal conversion circuit and the PWM output circuit are connected with the microprocessor.
The rectification module is internally provided with a direct current shunt for collecting direct current load capacity of the aviation power supply vehicle, the direct current output voltage automatic compensation plate is input through a direct current shunt interface of the direct current output voltage automatic compensation plate, so that the direct current output voltage automatic compensation plate collects the direct current load capacity of the aviation power supply vehicle through the direct current shunt interface, the collected direct current load capacity is subjected to signal conversion through the signal conversion circuit and then is transmitted to the A/D conversion interface of the microprocessor for analog-to-digital conversion, the microprocessor calculates according to the collected direct current load capacity and the compensation slope of the direct current output voltage, the PWM output circuit is driven to generate an adjusting signal, the adjusting signal is output to the generator, and the output voltage of the adjusting generator linearly changes according to the direct current load capacity of the aviation power supply vehicle, so that direct current output voltage compensation is automatically completed.
The operation panel is provided with the start switch and the stop switch, so that the engine operation and the rectifying module work can be started and stopped conveniently through the switches.
Due to the adoption of the structure, the invention has the advantages of few used elements, high control precision, simple debugging and good stability, and the field guarantee capability for aviation power supply vehicle operation and maintenance personnel is greatly improved.
Drawings
Fig. 1 is a block diagram of the system architecture of the present invention.
Fig. 2 is a block diagram of a dc output voltage automatic compensation board according to the present invention.
Reference numerals: the automatic direct-current power supply comprises an operation panel 1, an engine 2, a generator 3, a rectifying module 4, a direct-current output voltage automatic compensation plate 5, a potentiometer R1, a potentiometer R2 12, a direct-current shunt interface 13, a signal conversion circuit 14, a microprocessor 15 and a PWM output circuit 16.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the automatic compensating device for the direct-current output voltage of the aviation power supply vehicle comprises a control panel 1, an engine 2, a generator 3, a rectifying module 4 and an automatic compensating plate 5 for the direct-current output voltage, wherein the control panel 1, the engine 2, the generator 3 and the rectifying module 4 are sequentially connected, the control panel 1 is connected with the rectifying module 4, and the automatic compensating plate 5 for the direct-current output voltage is connected with the generator 3 and the rectifying module 4, so that the automatic linear compensation for the direct-current output voltage is carried out according to the direct-current load capacity through the aviation power supply vehicle, and the effects of fewer using elements, high control precision, simplicity in debugging and good stability are achieved.
As shown in fig. 2, the dc output voltage automatic compensation board 5 is provided with a potentiometer R1, a potentiometer R2 12, a dc current shunt interface 13, a signal conversion circuit 14, a microprocessor 15, and a PWM output circuit 16, wherein the potentiometer R1, the potentiometer R2 12, and the dc current shunt interface 13 are connected with the signal conversion circuit 14, and the signal conversion circuit 14 and the PWM output circuit 16 are connected with the microprocessor 15.
The rectification module 4 is internally provided with a direct current shunt for collecting direct current load capacity of the aviation power supply vehicle, the direct current output voltage automatic compensation plate 5 is input through the direct current shunt interface 13 of the direct current output voltage automatic compensation plate 5, so that the direct current output voltage automatic compensation plate 5 collects the direct current load capacity of the aviation power supply vehicle through the direct current shunt interface 13, the collected direct current load capacity is subjected to signal conversion through the signal conversion circuit 14 and then is transmitted to the A/D conversion interface of the microprocessor 15 for carrying out analog-to-digital conversion, the microprocessor 15 carries out operation according to the collected direct current load capacity and the compensation slope of the direct current output voltage, the PWM output circuit 16 is driven to generate an adjusting signal, the adjusting signal is output to the generator 3, and the output voltage of the adjusting generator is linearly changed according to the direct current load capacity of the aviation power supply vehicle, so that the direct current output voltage compensation is automatically completed.
The operation panel 1 is provided with a start switch and a stop switch, so that the engine 2 can be started and stopped and the rectifying module 4 can work conveniently through the switches.
When the automatic compensation device is operated, a starting switch on the operation panel is clicked, the engine drives the generator to operate, meanwhile, the automatic compensation board for the direct current output voltage is powered on, the microprocessor starts to operate, the automatic compensation board for the direct current output voltage collects the direct current load capacity of the aviation power supply vehicle through the direct current shunt interface, the signal conversion circuit collects the PWM output initial value given by the potentiometer R1 and the compensation slope of the direct current output voltage given by the potentiometer R2 and then uploads the compensation slope to the microprocessor, the microprocessor calculates the compensation slope and sets the initial value, the PWM output circuit is driven to generate an adjusting signal, the signal is output to the generator through the PWM output circuit, the output voltage of the generator is adjusted according to the linear change of the direct current load capacity of the aviation power supply vehicle, and the automatic compensation board for the direct current output voltage automatically completes the direct current output voltage compensation.
Because the direct current output voltage automatic compensation plate directly collects direct current load capacity when the aviation power supply vehicle is in direct current power supply, the problem that the value of the alternating current input by the transformer is not completely proportional to the value of the direct current load current is effectively solved, the output voltage of the generator is linearly improved according to the direct current load capacity, and therefore the direct current output voltage is flexibly and linearly changed along with the direct current load capacity, and the steady-state requirement of aircraft power supply is met. When the direct current load of the aviation power supply vehicle exceeds the rated capacity, the direct current output voltage automatic compensation plate stops voltage compensation, so that the phenomenon that the power supply output characteristic is too hard is avoided, and the service life of an aircraft engine is effectively prolonged.
Claims (1)
1. The utility model provides an aviation power supply car direct current output voltage automatic compensating device, including control panel, engine, generator, rectifier module and direct current output voltage automatic compensating board, control panel, engine, generator and rectifier module are connected in proper order, and control panel is connected with rectifier module, and direct current output voltage automatic compensating board is connected with generator and rectifier module, direct current output voltage automatic compensating board is equipped with potentiometre R1, potentiometre R2, direct current shunt interface, signal conversion circuit, microprocessor and PWM output circuit, potentiometre R1, potentiometre R2 and direct current shunt interface are connected with signal conversion circuit, and signal conversion circuit and PWM output circuit are connected with microprocessor, install the direct current shunt in the rectifier module, carry out signal conversion with the direct current load volume that the direct current shunt interface gathered, then convey microprocessor's AD conversion interface to carry out analog-to-digital conversion, signal conversion circuit gathers the compensation slope of the direct current output voltage that potentiometre R1 given PWM output initial value and potentiometre R2 given, microprocessor carries out the linear regulation signal according to the direct current load volume and the direct current output voltage of the output voltage of the output regulation signal of the output power supply of the linear regulation generator that the microprocessor produced the direct current load volume of the output voltage according to the signal conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710943755.9A CN107493050B (en) | 2017-10-11 | 2017-10-11 | Automatic DC output voltage compensation device for aviation power supply vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710943755.9A CN107493050B (en) | 2017-10-11 | 2017-10-11 | Automatic DC output voltage compensation device for aviation power supply vehicle |
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| Publication Number | Publication Date |
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| CN107493050A CN107493050A (en) | 2017-12-19 |
| CN107493050B true CN107493050B (en) | 2024-01-30 |
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| CN107154761A (en) * | 2017-05-26 | 2017-09-12 | 北京工业大学 | Generator full-controlled rectifier system and control method |
| CN207339706U (en) * | 2017-10-11 | 2018-05-08 | 威海广泰空港设备股份有限公司 | A kind of aircraft power truck DC output voltage autocompensation installation |
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2017
- 2017-10-11 CN CN201710943755.9A patent/CN107493050B/en active Active
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| EP0724321A2 (en) * | 1995-01-25 | 1996-07-31 | Mitsubishi Denki Kabushiki Kaisha | Control apparatus for AC generator of motor vehicle |
| CN2653781Y (en) * | 2003-10-23 | 2004-11-03 | 威海广泰空港设备股份有限公司 | 0-70V starting power for Yun-8 plane |
| CN2896693Y (en) * | 2006-05-12 | 2007-05-02 | 天津市既济电气控制设备有限公司 | Generator end three-phase-voltage monitoring symmetric output transmitter |
| CN101510747A (en) * | 2009-03-27 | 2009-08-19 | 华中科技大学 | Excitation control system architecture and control method for marine diesel brushless double fed shaft generator |
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| CN107493050A (en) | 2017-12-19 |
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