CN208443991U - A kind of double pressure power supply pilot systems of direct current - Google Patents

A kind of double pressure power supply pilot systems of direct current Download PDF

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Publication number
CN208443991U
CN208443991U CN201820437176.7U CN201820437176U CN208443991U CN 208443991 U CN208443991 U CN 208443991U CN 201820437176 U CN201820437176 U CN 201820437176U CN 208443991 U CN208443991 U CN 208443991U
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China
Prior art keywords
photoelectric converter
current generator
power transmission
current
connect
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CN201820437176.7U
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Chinese (zh)
Inventor
潘浩
王科
周仿荣
颜冰
王山
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Electric Power Research Institute of Yunnan Power System Ltd
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Electric Power Research Institute of Yunnan Power System Ltd
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Abstract

The application discloses a kind of double pressure power supply pilot systems of direct current, and system includes controller, photoelectric converter, strong current generator adjuster, strong current generator, cable, rectifier, Ripple Suppression device, DC current transformer, high voltage direct current generator and divider;Controller is connect with photoelectric converter;DC current transformer is connect with photoelectric converter;DC power transmission equipment passes through high voltage direct current generator respectively and divider is connect with photoelectric converter;One end of strong current generator adjuster is connect with photoelectric converter, and the other end is connect with strong current generator;Cable passes through the cavity inside of strong current generator;The both ends of the input terminal connecting cable of rectifier, Ripple Suppression device is in parallel with rectifier, and DC power transmission equipment is in parallel with rectifier.The application is that DC power transmission equipment provides the examination of DC voltage and DC current simultaneously, the conductive environment of actual motion is provided for it, to more stringent by the requirement of apparatus for checking.

Description

A kind of double pressure power supply pilot systems of direct current
Technical field
This application involves electrical test technical field, in particular to the double pressure power supply pilot systems of a kind of direct current.
Background technique
In recent years, the problem of DC transmission engineering puts into operation successively, is unevenly distributed weighing apparatus for country's energy provides solution route.For The normal operation for ensuring DC power transmission equipment can all carry out respectively DC voltage and straight before factory to DC power transmission equipment The examination of galvanic electricity stream.The insulation performance for applying the main apparatus for checking of DC voltage to DC power transmission equipment, to guarantee its fortune Do not puncture when row.The material property for applying the main apparatus for checking of DC current to DC equipment, when guaranteeing its operation It will not break down because of overheat.
It presently, is all using application DC voltage and DC current respectively, respectively to the experiment examination of DC equipment The insulation performance and quality of materials of apparatus for checking.However, may be deposited between electric current and voltage in the conductive environment of actual motion It is influencing each other, actual conductive environment can not be simulated by applying DC voltage and DC current respectively.
Utility model content
The application's is designed to provide a kind of double pressure power supply pilot systems of direct current, can not to solve existing testing equipment The drawbacks of carrying out DC voltage and DC current examination simultaneously to DC equipment simultaneously.
According to an embodiment of the present application, a kind of double pressure power supply pilot systems of direct current are provided, for testing the defeated change of direct current The insulation performance and quality of materials of electric equipment, including controller, photoelectric converter, strong current generator adjuster, high current Generator, cable, rectifier, Ripple Suppression device, DC current transformer, high voltage direct current generator and divider;
The controller is connect with the photoelectric converter;
The DC current transformer is connect with the photoelectric converter, and the DC current transformer is sheathed on described straight Flow power transmission and transforming equipment;
The DC power transmission equipment is connect by the high voltage direct current generator with the photoelectric converter;
The DC power transmission equipment is connect by the divider with the photoelectric converter;
One end of the strong current generator adjuster is connect with the photoelectric converter, the other end and the high current Generator connection;
The cable passes through the cavity inside of the strong current generator;
The input terminal of the rectifier connects the both ends of the cable, and the Ripple Suppression device and the rectifier are simultaneously Connection, the DC power transmission equipment are in parallel with the rectifier.
Further, the system also includes support insulator, the cable is fixed on the support column insulator.
From the above technical scheme, the embodiment of the present application provides a kind of double pressure power supply pilot systems of direct current, for surveying The insulation performance and quality of materials for trying DC power transmission equipment, the system comprises controller, photoelectric converter, high current occurs Device adjuster, strong current generator, cable, rectifier, Ripple Suppression device, DC current transformer, high direct voltage occur Device and divider;The controller is connect with the photoelectric converter;The DC current transformer and the photoelectric converter Connection, the DC current transformer are sheathed on the DC power transmission equipment;The DC power transmission equipment passes through described straight Stream high pressure generator is connect with the photoelectric converter;The DC power transmission equipment is turned by the divider and the photoelectricity Parallel operation connection;One end of the strong current generator adjuster is connect with the photoelectric converter, the other end and the big electricity Flow-generator connection;The cable passes through the cavity inside of the strong current generator;The input terminal of the rectifier connects institute The both ends of cable are stated, the Ripple Suppression device is in parallel with the rectifier, the DC power transmission equipment and the rectifier It is in parallel.The application is that DC power transmission equipment provides the examination of DC voltage and DC current simultaneously, is provided before putting into operation for it The conductive environment of actual motion is the electricity of DC power transmission equipment to more stringent by the requirement of examination DC power transmission equipment Pressure causes insulation defect and current caused hot defect to provide research platform.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.
Fig. 1 is the structural schematic diagram according to the double pressure power supply pilot systems of a kind of direct current shown in the embodiment of the present application;
Fig. 2 is the flow chart according to the double pressure power supply test methods of a kind of direct current shown in the embodiment of the present application;
Fig. 3 is the structural block diagram according to the double pressure power supply experimental rigs of a kind of direct current shown in the embodiment of the present application.
It illustrates:
Wherein, 1- controller, 2- photoelectric converter, 3- strong current generator adjuster, 4- strong current generator, 5- branch Column insulator, 6- cable, 7- rectifier, 8- Ripple Suppression device, 9- DC current transformer, 10- high voltage direct current generator, 11- divider, 12- DC power transmission equipment.
Specific embodiment
Refering to fig. 1, the embodiment of the present application provides a kind of double pressure power supply pilot systems of direct current, for testing direct current electric transmission and transformation The insulation performance and quality of materials of equipment 12, including controller 1, photoelectric converter 2, strong current generator adjuster 3, big electricity Flow-generator 4, cable 6, rectifier 7, Ripple Suppression device 8, DC current transformer 9, high voltage direct current generator 10 and partial pressure Device 11;
The controller 1 is connect with the photoelectric converter 2;
The DC current transformer 9 is connect with the photoelectric converter 2, and the DC current transformer 9 is sheathed on institute State DC power transmission equipment 12;
The DC power transmission equipment 12 is connect by the high voltage direct current generator 10 with the photoelectric converter 2;
The DC power transmission equipment 12 is connect by the divider 11 with the photoelectric converter 2;
One end of strong current generator adjuster 3 is connect with the photoelectric converter 2, the other end and the big electricity Flow-generator 4 connects;
It should be noted that the measuring signal that DC current transformer 9 and divider 11 export is reached through photoelectric converter 2 Controller 1, strong current generator adjuster 3 and high voltage direct current generator 10 control signal and reach control through photoelectric converter 2 Device 1.
The cable 6 passes through the cavity inside of the strong current generator 4;
The input terminal of the rectifier 7 connects the both ends of the cable 6, the Ripple Suppression device 8 and the rectifier 7 Parallel connection, the DC power transmission equipment 12 are in parallel with the rectifier 7.
Ripple is exactly the interference waveform in DC current, and ripple factor is excessive in DC current means current quality not It is high.After alternating current becomes DC current after rectifier 7, Ripple Suppression device 8 presses down the ripple in DC current System improves current quality.
When work, the DC voltage of high voltage direct current generator 10 is adjusted by controller 1 and strong current generator 4 exports electricity Stream.On the one hand, strong current generator 4 generates alternating current and is input in rectifier 7, and rectifier 7 is converted to alternating current directly Galvanic electricity stream, Ripple Suppression device 8 eliminate the ripple in DC current, improve the quality of DC current, and DC current transformer 9 is supervised Survey the DC current on DC power transmission equipment 12;On the other hand, the DC voltage of high voltage direct current generator 10 is applied to direct current On power transmission and transforming equipment 12, divider 11 is to monitor the DC voltage on DC power transmission equipment 12.Controller 1 receives direct current The DC current of current transformer 9 and the DC voltage of divider 11, thus judge DC power transmission equipment 12 insulation performance and Quality of materials.
By the above technology it is found that the application is that DC power transmission equipment provides examining for DC voltage and DC current simultaneously Core provides the conductive environment of actual motion before putting into operation for it, to more stringent by the requirement of examination DC power transmission equipment, is The voltage of DC power transmission equipment causes insulation defect and current caused hot defect to provide research platform.
Further, described device further includes support insulator 5, and the cable 6 is fixed on 5 son of support column insulation On.Support insulator is a kind of special insulation control, and support insulator 5 prevents cable 6 and cavity to support cable 6 It is connected inside the strong current generator 4 of formula, prevents electric current from going back to ground, guarantees alternating current output.
Referring to Fig.2, the embodiment of the present application provides a kind of double pressure power supply test methods of direct current, for the double pressure electricity of direct current Source pilot system, the system comprises strong current generator 4, cable 6, rectifier 7, Ripple Suppression device 8, DC current mutual inductances Device 9, high voltage direct current generator 10 and divider 11, comprising:
Step S1, the input current and input voltage of the DC power transmission equipment 12 are adjusted, the input current is by big Current feedback circuit 4, cable 6, rectifier 7 and Ripple Suppression device 8 obtain, and the input voltage is obtained by high voltage direct current generator 10 ?;
Wherein, strong current generator 4 generates alternating current, and alternating current will be handed over through 6 input rectifier 7 of cable, rectifier 7 Galvanic electricity circulation is changed to DC current, and Ripple Suppression device 8 removes the ripple of DC current, improves DC current quality.
Step S2, the DC current and DC voltage of the DC power transmission equipment 12 are received, the DC current is by straight Galvanic electricity current transformer 9 measures, and the DC voltage is measured by divider 11;
Step S3, according to the input current and input voltage, and, described in the DC current and DC voltage judgement 12 insulation performance of DC power transmission equipment and quality of materials.
Refering to Fig. 3, the embodiment of the present application provides a kind of double pressure power supply experimental rigs of direct current, for testing the defeated change of direct current The insulation performance and quality of materials of electric equipment, comprising:
Unit 101 is adjusted, for adjusting the input current and input voltage of the DC power transmission equipment 12, the input Electric current is obtained by strong current generator 4, cable 6, rectifier 7 and Ripple Suppression device 8, and the input voltage is sent out by high direct voltage Raw device 10 obtains;
Receiving unit 102, for receiving the DC current and DC voltage of the DC power transmission equipment 12, the direct current Electric current is measured by DC current transformer 9, and the DC voltage is measured by divider 11;
Judging unit 103 is used for according to the input current and input voltage, and, the DC current and direct current Pressure judges 12 insulation performance of DC power transmission equipment and quality of materials.
From the above technical scheme, the embodiment of the present application provides a kind of double pressure power supply pilot systems of direct current, for surveying The insulation performance and quality of materials for trying DC power transmission equipment, the system comprises controller 1, photoelectric converter 2, high current hairs Raw device adjuster 3, strong current generator 4, cable 6, rectifier 7, Ripple Suppression device 8, DC current transformer 9, direct current High pressure generator 10 and divider 11;The controller 1 is connect with the photoelectric converter 2;The DC current transformer 9 with The photoelectric converter 2 connects, and the DC current transformer 9 is sheathed on the DC power transmission equipment 12;The direct current is defeated Transformer equipment 12 is connect by the high voltage direct current generator 10 with the photoelectric converter 2;The DC power transmission equipment 12 It is connect by the divider 11 with the photoelectric converter 2;One end of strong current generator adjuster 3 and the light Electric transducer 2 connects, and the other end is connect with the strong current generator 4;The cable 6 passes through the strong current generator 4 Cavity inside;The input terminal of the rectifier 7 connects the both ends of the cable 6, the Ripple Suppression device 8 and the rectifier 7 is in parallel, and the DC power transmission equipment 12 is in parallel with the rectifier 7.The application is that DC power transmission equipment provides directly simultaneously The examination of galvanic electricity pressure and DC current provides the conductive environment of actual motion for it, to by examination direct current electric transmission and transformation before putting into operation The requirement of equipment is more stringent, and for the voltage of DC power transmission equipment, to cause insulation defect and current caused hot defect to provide research flat Platform.
Those skilled in the art will readily occur to its of the application after considering specification and practicing application disclosed herein Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by following Claim is pointed out.
It should be understood that the application is not limited to the precise structure that has been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.

Claims (2)

1. a kind of double pressure power supply pilot systems of direct current, for testing the insulation performance and quality of materials of DC power transmission equipment, It is characterised in that it includes controller, photoelectric converter, strong current generator adjuster, strong current generator, cable, rectification Device, Ripple Suppression device, DC current transformer, high voltage direct current generator and divider;
The controller is connect with the photoelectric converter;
The DC current transformer is connect with the photoelectric converter, and it is defeated that the DC current transformer is sheathed on the direct current Transformer equipment;
The DC power transmission equipment is connect by the high voltage direct current generator with the photoelectric converter;
The DC power transmission equipment is connect by the divider with the photoelectric converter;
One end of the strong current generator adjuster is connect with the photoelectric converter, and the other end and the high current occur Device connection;
The cable passes through the cavity inside of the strong current generator;
The input terminal of the rectifier connects the both ends of the cable, and the Ripple Suppression device is in parallel with the rectifier, institute It is in parallel with the rectifier to state DC power transmission equipment.
2. system according to claim 1, which is characterized in that further include support insulator, the cable is fixed on described On support insulator.
CN201820437176.7U 2018-03-29 2018-03-29 A kind of double pressure power supply pilot systems of direct current Active CN208443991U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820437176.7U CN208443991U (en) 2018-03-29 2018-03-29 A kind of double pressure power supply pilot systems of direct current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820437176.7U CN208443991U (en) 2018-03-29 2018-03-29 A kind of double pressure power supply pilot systems of direct current

Publications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112904061A (en) * 2021-01-20 2021-06-04 云南电网有限责任公司电力科学研究院 High-voltage direct-current generator and complete device
CN113777437A (en) * 2021-11-15 2021-12-10 中国电力科学研究院有限公司 System and method for testing extra-high voltage direct current wall bushing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112904061A (en) * 2021-01-20 2021-06-04 云南电网有限责任公司电力科学研究院 High-voltage direct-current generator and complete device
CN112904061B (en) * 2021-01-20 2022-09-02 云南电网有限责任公司电力科学研究院 High-voltage direct current generator and complete device
CN113777437A (en) * 2021-11-15 2021-12-10 中国电力科学研究院有限公司 System and method for testing extra-high voltage direct current wall bushing

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