CN104535808A - Adjustable voltage source test platform - Google Patents

Adjustable voltage source test platform Download PDF

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Publication number
CN104535808A
CN104535808A CN201510003685.XA CN201510003685A CN104535808A CN 104535808 A CN104535808 A CN 104535808A CN 201510003685 A CN201510003685 A CN 201510003685A CN 104535808 A CN104535808 A CN 104535808A
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CN
China
Prior art keywords
contactor
output
control
rectifier
voltage source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510003685.XA
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Chinese (zh)
Inventor
钱毅泽
贾红福
岳健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Tianyuan Science and Creation Wind Power Technology Co Ltd
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Beijing Tianyuan Science and Creation Wind Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Beijing Tianyuan Science and Creation Wind Power Technology Co Ltd filed Critical Beijing Tianyuan Science and Creation Wind Power Technology Co Ltd
Priority to CN201510003685.XA priority Critical patent/CN104535808A/en
Publication of CN104535808A publication Critical patent/CN104535808A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an adjustable voltage source test platform which comprises a voltage regulator, a rectifier, a direct current output port and an alternating current output port. A main output path of the voltage regulator is provided with a main contactor, and then is divided into two branch output paths. The first branch output path is provided with a rectifier control contactor connected with the input end of the rectifier. The output end of the rectifier is connected with the direct current output port. The second branch output branch is provided with an alternating current output control contactor connected with the alternating current output port. The adjustable voltage source test platform integrates the continuously adjustable alternating current voltage source function and the continuously adjustable direct current voltage source function, reduces waveform distortion and improves the adjustment precision, thereby overcoming defects in the prior art.

Description

A kind of variable voltage source test platform
Technical field
The present invention relates to adjustable voltage source domain, particularly relate to a kind of variable voltage source test platform.
Background technology
Existing adjustable voltage source device possesses three-phase alternating voltage and DC voltage adjustable function time different, only can present its a kind of function, and voltage regulation limits and fan-out capability less, functions of the equipments are single, voltage wave shape distortion is serious, degree of regulation is low, only can meet demand routinely, can not meet laboratory singularity demand.
As can be seen here, existing adjustable voltage source device with in use in structure, obviously still has inconvenience and defect, and is urgently further improved.How to found a kind of new variable voltage source testing equipment being integrated with continuously adjustabe alternating-current voltage source and continuously adjustabe direct voltage source function, one of current important research and development problem of real genus.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of variable voltage source test platform, makes its accessible site continuously adjustabe alternating-current voltage source and continuously adjustabe direct voltage source function, and reduces waveform distortion, raising degree of regulation, thus overcomes the deficiencies in the prior art.
For solving the problems of the technologies described above, a kind of variable voltage source test platform of the present invention, comprise pressure regulator, rectifier, DC output end mouth and ac output end mouth, the output main line of described pressure regulator is provided with main contactor, separate two output branch roads afterwards, wherein: first exports branch road is provided with rectifier control contactor, and is connected with the input end of rectifier, and the output terminal of rectifier is connected with DC output end mouth; Second exports branch road is provided with interchange output control contactor, and is connected with ac output end mouth.
As a modification of the present invention, described pressure regulator is electric voltage regulator, comprising: servomotor; In series by the normally closed contact of boosting contactor and up limit switch, control the boosting loop that servomotor forward runs; In series by the normally closed contact of step-down contactor and descending limit switch, control the reduction voltage loop of servomotor inverted running; And have the normally opened contact of the normally opened contact of up limit switch and descending limit switch and connect the limit circuit of formation.
Described boosting loop, reduction voltage loop and limit circuit are respectively equipped with feedback of status lamp.
Described rectifier control contactor exports control contactor and interlocks with exchanging.
Described main contactor is parallel with the precharge branch be made up of pre-charge resistance and pre-charge contactor.
Described main contactor, rectifier control contactor, interchange output control contactor and pre-charge contactor are by master control circuit controls, and described main control circuit comprises: the current supply circuit be made up of power module and power switch; Feed back lamp by main contactor adhesive switch and main contactor adhesive to form, and control the main contactor control loop of main contactor adhesive; Feed back lamp by rectifier gauge tap and rectifier work to form, and control the rectifier control loop of rectifier control contactor adhesive; By interchange output control switch with exchanges output services and feed back lamp and form, and control the ac control circuit of interchange output control contactor adhesive; And be made up of precharge gauge tap and precharge work feedback lamp, and control the precharge control loop of pre-charge contactor adhesive.
Described output main line is connected with reometer and voltage table, and described DC output end mouth is parallel with voltage transmitter, and described voltage transmitter is connected with D.C. voltmeter.
The output terminal of described rectifier is parallel with the discharge paths be made up of discharge resistance and electric discharge contactor, described rectifier control contactor and electric discharge contactor interlocking.
The output terminal of described rectifier is parallel with Support Capacitor, on the output main line of described pressure regulator, and on circuit between rectifier and DC output end mouth, is equipped with fuse.
Described DC output end mouth and ac output end mouth are arranged on eject floor socket, and adopt the waterproof aviation plug Interface design with locking locknut structure.
After adopting such design, the present invention at least has the following advantages:
1, the present invention can realize the adjustable function of the continuous output of 0-690V three-phase alternating voltage and 0-1000V DC voltage;
2, the present invention can ensure that output voltage smoothly rises or declines, and reduces the distortion of voltage waveform;
3, weak control circuit is adopted, safe and reliable, be specially adapted to the maintenance test of new-product development debugging and product;
4, voltage transformation of the present invention adopts electric voltage regulator structure, improves the load fan-out capability of experiment porch, significantly reduces the distortion of voltage waveform, ensures to export the quality of power supply, can realize voltage from zero initial adjustment simultaneously.
Accompanying drawing explanation
Above-mentioned is only the general introduction of technical solution of the present invention, and in order to better understand technological means of the present invention, below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Fig. 1 is the main circuit topology figure of a kind of variable voltage source test platform of the present invention.
Fig. 2 is the main control circuit schematic diagram of a kind of variable voltage source test platform of the present invention.
Fig. 3 is the regulator circuit schematic diagram of a kind of variable voltage source test platform of the present invention.
Embodiment
Refer to shown in Fig. 1, a kind of variable voltage source test platform of the present invention is primarily of pressure regulator 1T1, rectifier 1D1, DC output end mouth X1 and ac output end mouth X2.
Specifically, the output circuit of pressure regulator 1T1 is connected with 1,3,5 contacts of main contactor 1K1 by fuse 1FU1, intelligent digital reometer 1U1 and intelligent digital voltage table 1U2 is connected in series in this output circuit respectively, for the alternating voltage of Real-Time Monitoring output AC electric current and change simultaneously.2,4,6 contacts of main contactor 1K1 connect two output branch roads.
First exports branch road is connected with 1,3,5 contacts of rectifier control contactor 1K3, and 2,4,6 contacts of rectifier control contactor 1K3 are connected with rectifier 1D1, realize direct current output function.
At the output terminal of rectifier 1D1 Support Capacitor 1C1 in parallel, ensure the stability that direct current exports.Also be connected by the contactor 1K5 that discharges with discharge resistance 1R2 at the output terminal of rectifier simultaneously, when quitting work for platform, the electric energy of bus of releasing.
Be connected, for overcurrent protection with DC output end mouth X1 by fuse 1FU2 at the output terminal of rectifier 1D1; Meanwhile on direct current output loop, be parallel with voltage transmitter 1T2, the voltage signal gathering direct current output passes to intelligent digital D.C. voltmeter IU3, for Real-Time Monitoring VD value, plays the effect of high_voltage isolation simultaneously.
Second exports branch road is provided with interchange output control contactor 1K4, and is connected with three-phase alternating current output port X2, realizes exchanging exporting control.
In addition, main contactor 1K1 also can be associated with the precharge branch be made up of pre-charge resistance 1R1 and pre-charge contactor 1K2, exports and exchange output and play precharge effect direct current.
The present invention adopts rectifier control contactor 1K3 to export control contactor 1K4 interlocking design with exchanging, and namely can only use to exchange to export or direct current exports a kind of mode of operation, has single channel output protecting function.And adopt rectifier control contactor 1K3 and electric discharge contactor 1K5 interlocking design, prevent maloperation from causing platform to occur over-current phenomenon avoidance.
Shown in Fig. 2, above-mentioned main contactor IK1, pre-charge contactor 1K2, rectifier control contactor 1K3 and exchange and export control contactor 1K4 by master control circuit controls.
Wherein, the current supply circuit that power module 1T3 and power switch 1F1 is formed, closed 24V power switch 1F1, for contactor, feedback of status lamp and voltage transmitter provide operating voltage.
Switch 1F4 and 1F5 is for selecting output voltage type: select direct current to export then closed rectifier gauge tap 1F4, rectifier control contactor 1K3 adhesive, and now rectifier work feedback lamp 1L3 lights; Select to exchange and export then closed 1F5, exchange and export control contactor 1K4 adhesive, now exchange output services feedback 1L4 and light.
Closed precharge gauge tap 1F3 carries out precharge work afterwards, pre-charge contactor 1K2 adhesive, now precharge work feedback lamp 1L2 lights, observe the reading of the intelligent digital ammeter on operation and display panel, judge rear closed main contactor adhesive switch 1F2 out of question, main contactor 1K1 adhesive, now main contactor adhesive feedback lamp 1L1 lights, and exports control operation complete.
Pressure regulator of the present invention preferably adopts electric voltage regulator, shown in Fig. 3, in process of the test, press boost button 1S1, boosting contactor 1K6 adhesive, servomotor 1M1 forward runs, voltage raises, and now boost feedback lamp 1L6 lamp is lighted, and observes the change in voltage of intelligent digital voltage table 1U2/1U3, if when voltage reaches upper critical, up limit switch 1SQ1 triggers, and 1,2 contacts disconnect, 3,4 closings of contact, boosting rectifier control partial failure, spacing trigger feedback lamp 1L8 lights.
Press step-down button 1S2, step-down contactor 1K7 adhesive, servomotor 1M1 inverted running, voltage reduces, now boost feedback lamp 1L7 lamp is lighted, observe the change in voltage of intelligent digital voltage table 1U2/1U3, if voltage reach lower limit critical time, descending limit switch 1SQ2 triggers, 1,2 contacts disconnect, 3,4 closings of contact, step-down control loop lost efficacy, and spacing trigger feedback lamp 1L8 lights.
Up limit switch 1SQ1 and descending limit switch 1SQ2, is connected in boosting rectifier control loop and step-down control loop respectively, can prevent outrange operation.
Again please refer to shown in Fig. 2, also comprise in main control circuit of the present invention and feed back lamp 1L5 by discharge switch 1F6 with electric discharge and form, for the discharge control loop of controlled discharge contactor 1K5.After direct voltage output terminates, closed bus discharge switch 1F6, electric discharge contactor 1K5 adhesive, now electric discharge feedback lamp 1L5 lights, and observes the change in voltage of intelligent digital voltage table 1U3.
Comprehensive accompanying drawing 1-3, the present invention mainly can be divided into three parts: operation and display unit, actuator unit and voltage transformation module, it exchanges 400V voltage provides four loops to use: one is be connected with pressure regulator 1T1 by cable, for voltage transformation provides foundation; Two is be connected with 24V power module 1T3 by cable, for the relay of main control circuit and status indicator lamp provide operating voltage; Three is for intelligent electric meter provides operating voltage; Four is for servomotor provides operating voltage.
Further, electric current of the present invention, voltage table all adopt 3 half digital display voltage/current tables to carry out measurement and display to voltage and electric current, and the duty of whole platform can show intuitively.DC output end mouth and ac output end mouth can be arranged on eject floor socket, interface can be hidden when platform does not run, and save platform space.And adopting the waterproof aviation plug Interface design with locking locknut structure, when preventing from testing, cable comes off, and avoids electric shock hidden danger.
The above; it is only preferred embodiment of the present invention; not do any pro forma restriction to the present invention, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.

Claims (10)

1. a variable voltage source test platform, it is characterized in that comprising pressure regulator, rectifier, DC output end mouth and ac output end mouth, the output main line of described pressure regulator is provided with main contactor, separates two output branch roads afterwards, wherein:
First exports branch road is provided with rectifier control contactor, and is connected with the input end of rectifier, and the output terminal of rectifier is connected with DC output end mouth;
Second exports branch road is provided with interchange output control contactor, and is connected with ac output end mouth.
2. a kind of variable voltage source test platform according to claim 1, is characterized in that described pressure regulator is electric voltage regulator, comprising:
Servomotor;
In series by the normally closed contact of boosting contactor and up limit switch, control the boosting loop that servomotor forward runs;
In series by the normally closed contact of step-down contactor and descending limit switch, control the reduction voltage loop of servomotor inverted running; And
There is the normally opened contact of the normally opened contact of up limit switch and descending limit switch and connect the limit circuit of formation.
3. a kind of variable voltage source test platform according to claim 2, is characterized in that described boosting loop, reduction voltage loop and limit circuit are respectively equipped with feedback of status lamp.
4. a kind of variable voltage source test platform according to claim 1, is characterized in that described rectifier control contactor exports control contactor and interlocks with exchanging.
5. a kind of variable voltage source test platform according to claim 1, is characterized in that described main contactor is parallel with the precharge branch be made up of pre-charge resistance and pre-charge contactor.
6. a kind of variable voltage source test platform according to claim 5, it is characterized in that described main contactor, rectifier control contactor, interchange output control contactor and pre-charge contactor are by master control circuit controls, described main control circuit comprises:
The current supply circuit be made up of power module and power switch;
Feed back lamp by main contactor adhesive switch and main contactor adhesive to form, and control the main contactor control loop of main contactor adhesive;
Feed back lamp by rectifier gauge tap and rectifier work to form, and control the rectifier control loop of rectifier control contactor adhesive;
By interchange output control switch with exchanges output services and feed back lamp and form, and control the ac control circuit of interchange output control contactor adhesive; And
Feed back lamp by precharge gauge tap and precharge work to form, and control the precharge control loop of pre-charge contactor adhesive.
7. a kind of variable voltage source test platform according to claim 1, it is characterized in that described output main line is connected with reometer and voltage table, described DC output end mouth is parallel with voltage transmitter, and described voltage transmitter is connected with D.C. voltmeter.
8. a kind of variable voltage source test platform according to claim 1, is characterized in that the output terminal of described rectifier is parallel with the discharge paths be made up of discharge resistance and electric discharge contactor, described rectifier control contactor and electric discharge contactor interlocking.
9. a kind of variable voltage source test platform according to claim 1, it is characterized in that the output terminal of described rectifier is parallel with Support Capacitor, on the output main line of described pressure regulator, and on circuit between rectifier and DC output end mouth, be equipped with fuse.
10. a kind of variable voltage source test platform according to claim 1, is characterized in that described DC output end mouth and ac output end mouth are arranged on eject floor socket, and adopts the waterproof aviation plug Interface design with locking locknut structure.
CN201510003685.XA 2015-01-05 2015-01-05 Adjustable voltage source test platform Pending CN104535808A (en)

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Application Number Priority Date Filing Date Title
CN201510003685.XA CN104535808A (en) 2015-01-05 2015-01-05 Adjustable voltage source test platform

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105424993A (en) * 2015-12-30 2016-03-23 常熟理工学院 LabVIEW-based programmable current source system and method
CN107733208A (en) * 2017-09-05 2018-02-23 上海地铁电子科技有限公司 Integral type programmable power supply for railcar high power contravariant circuit test
CN108345262A (en) * 2017-12-13 2018-07-31 中冶南方(武汉)自动化有限公司 A kind of system and method for electric machine controller test distribution
CN109873558A (en) * 2017-12-04 2019-06-11 中国船舶重工集团海装风电股份有限公司 A kind of precharge of current transformer and heater circuit and its control method
CN110733358A (en) * 2018-07-03 2020-01-31 郑州宇通客车股份有限公司 integrated motor control module and system

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105424993A (en) * 2015-12-30 2016-03-23 常熟理工学院 LabVIEW-based programmable current source system and method
CN107733208A (en) * 2017-09-05 2018-02-23 上海地铁电子科技有限公司 Integral type programmable power supply for railcar high power contravariant circuit test
CN109873558A (en) * 2017-12-04 2019-06-11 中国船舶重工集团海装风电股份有限公司 A kind of precharge of current transformer and heater circuit and its control method
CN109873558B (en) * 2017-12-04 2020-07-14 中国船舶重工集团海装风电股份有限公司 Converter pre-charging and heating circuit and control method thereof
CN108345262A (en) * 2017-12-13 2018-07-31 中冶南方(武汉)自动化有限公司 A kind of system and method for electric machine controller test distribution
CN110733358A (en) * 2018-07-03 2020-01-31 郑州宇通客车股份有限公司 integrated motor control module and system

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Application publication date: 20150422