CN203572786U - Multichannel circulation heating test device for power cables with different specifications and cable diameters - Google Patents
Multichannel circulation heating test device for power cables with different specifications and cable diameters Download PDFInfo
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- CN203572786U CN203572786U CN201320449412.4U CN201320449412U CN203572786U CN 203572786 U CN203572786 U CN 203572786U CN 201320449412 U CN201320449412 U CN 201320449412U CN 203572786 U CN203572786 U CN 203572786U
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Abstract
The utility model aims to provide a multichannel circulation heating test device for power cables with different specifications and cable diameters, and the device can be used for compensating parameters of control commands according to the seasonal change along with the temperature change. The device is characterized by comprising at least one slave station controller unit connected with simulation cables and test cables respectively, a season information supply unit used for providing temperature-related season information of current test season, an environment temperature detection sensor unit used for obtaining the environment temperature in a test in real time, an upper computer unit used for setting the parameters of the control commands matched with the cable diameters of the test cables in the slave station controller units and obtaining the season information to compensate the corresponding parameters of the control commands, and a main station controller unit used for receiving post-compensation control commands from the upper computer unit to control the slave station controller units.
Description
Technical field
The utility model relates to a kind of power cable circulating-heating test unit, thereby has related in particular to a kind of can varying with temperature according to the different size wire diameter power cable multichannel circulating-heating test unit of seasonal variations compensation control command.
Background technology
Power cable is particularly applied to extra large cable, aerial line of extraordinary occasion etc., all needs to carry out cable aging test before putting goods on the market.Current-carrying capacity of cable-temperature relation has directly reacted operating characteristic and the actual bearer ability of power cable, an important test index while being cable burn-in test.
Patent No. ZL200820157385.2 discloses a kind of cable circulating-heating controlling test measurement mechanism, has proposed to carry out circulating-heating test by the method for dummycable tracking test cable.Patent publication No. CN101126665A discloses the measuring method of a kind of high-tension cable and accessory conductor temperature thereof, proposed on cable for measuring temperature perforate and inserted a measuring sonde and carry out thermometric method, adopt a series of measures simultaneously, such as applying large electric current, make temperature sharply increase, keep maximum temperature two hours, make again temperature decline rapidly, on test cable, apply the working voltage of 2.5 times, with this, carry out the measurement of cable and accessory conductor temperature thereof.License notification number CN201673132U discloses a kind of high-power cable cyclic heating testing control device, proposes to adopt accelerated aging test, within one relatively short period, changes condition of work, obtains the reliable information of cable work.In above-mentioned patent, test cable is applied large electric current, applies high voltage, or temperature probe is inserted in perforate on test cable, certain infringement is caused to cable in capital, destroy the correlation properties of cable, the actual characteristic that can not truly reflect cable, also all do not propose different size wire diameter cable circular heating method, the electric current loading in circulating-heating can not change according to adaptive tracing in season, does not also propose hyperchannel circulating-heating mode.
Utility model content
In order to address the above problem, the purpose of this utility model be to provide a kind of can variation with temperature, thereby according to the different size wire diameter power cable multichannel circulating-heating test unit of the parameter of seasonal variations compensation control command.
A kind of different size wire diameter power cable multichannel circulating-heating test unit that the utility model provides, for the test cable of different size wire diameter being carried out to circulating-heating based on dummycable, can variation with temperature, thereby according to the parameter of seasonal variations compensation control command, there is such feature: comprising: at least one slave station controller unit, respectively connecting analog cable and test cable; Information supply in season unit, for providing the information in season of current test season and temperature correlation; Environment temperature detection sensor unit, for the environment temperature of Real-time Obtaining test; Host computer unit, the initial trial electric current, the initial trial temperature that for setting the wire diameter of slave station controller unit and test cable, match, thus for obtaining that the information of information supply in season unit is carried out the compensation of corresponding initial trial electric current, the compensation of initial trial temperature to form initial trial temperature after initial trial electric current after compensation, compensation; And main station controller unit, be connected between each slave station controller unit and host computer unit, for receiving from initial trial temperature and control command after initial trial electric current, compensation after the compensation of host computer unit, control dummycable and the test cable that each slave station controller unit connects, and the information of Real-time Obtaining environment temperature is carried out real-Time Compensation to the parameter of control command, described in each, in slave station control module, comprise: analog cable signal collecting unit, for gathering dummycable voltage signal and the temperature signal of dummycable; Test cable signal gathering unit, for the test cable analog voltage signal of acquisition test cable; Test cable induction current control module, for regulating the test cable induction current of described test cable; Dummycable induction current control module, for regulating the dummycable induction current of described dummycable; From station control, be connected with main station controller unit and for according to control command, analog voltage signal, trial voltage signal, temperature signal, come Control experiment cable induction current control unit and dummycable induction current control module; And electric control cabinet, be connected between station control and dummycable induction current control module.
Different size wire diameter power cable multichannel circulating-heating test unit in the utility model, can also there is such feature: wherein, in analog cable signal collecting unit, comprise connecting analog cable two ends dummycable sampling resistor unit, be connected to the two ends of dummycable sampling resistor unit and from the dummycable AC voltage sensor unit between station control, and be connected in turn from the temperature sensor unit between station control and dummycable, electric current and voltage transducing unit.
Different size wire diameter power cable multichannel circulating-heating test unit in the utility model, can also there is such feature: wherein, in test cable signal gathering unit, comprise joint test cable two ends test cable sampling resistor unit, be connected to the two ends of test cable sampling resistor unit and from the test cable AC voltage sensor between station control.
Different size wire diameter power cable multichannel circulating-heating test unit in the utility model, can also there is such feature: wherein, dummycable induction current control module comprise the dummycable pressure regulation unit that is connected with electrical control cabinet, be arranged on the dummycable D.C mutual-inductor unit of analog electrical cable-end and be connected to dummycable pressure regulation unit and dummycable D.C mutual-inductor unit between dummycable strong current generator.
Different size wire diameter power cable multichannel circulating-heating test unit in the utility model, can also there is such feature: wherein, test cable induction current control module comprise the test cable pressure regulation unit that is connected with electrical control cabinet, be arranged on the test cable D.C mutual-inductor unit of test cable end and be connected to test cable pressure regulation unit and test cable D.C mutual-inductor unit between test cable strong current generator.
Effect of the present utility model
The different size wire diameter power cable multichannel circulating-heating test unit providing according to the utility model, because can be according to obtaining test information in season, thereby to initial trial electric current, initial trial temperature compensates, and the environment temperature in Real-time Obtaining test is carried out real-Time Compensation to the parameter of control command, can carry out corresponding initial parameter setting and make main station controller unit and each slave station controller unit form main website-slave station mode control command parameter downloads to the main station controller mating with the wire diameter in passage communicating according to the different cable wire diameters of different passages simultaneously, and then the intellectuality that realizes the circulating-heating test of different passage cables is controlled.So, a kind of different size wire diameter power cable multichannel circulating-heating test unit that the utility model provides can variation with temperature, thereby according to the parameter of seasonal variations compensation control command, realization is controlled the intellectuality of the circulating-heating test of different passages, test operation steady in a long-term, without manual intervention.
Accompanying drawing explanation
Fig. 1 is the structural representation block diagram in embodiment of the present utility model; And
Fig. 2 is the structural representation block diagram that the slave station controller unit in embodiment of the present utility model carries out the control of single channel circulating-heating.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
Fig. 1 is the structural representation block diagram in embodiment of the present utility model.
As shown in Figure 1, in the present embodiment, different size wire diameter power cable multichannel circulating-heating test unit comprises host computer unit 1,2,4 of main station controller unit slave station controller unit 3, environment temperature detection sensor unit 4 and information supply in season unit 5.
In the present embodiment, 4 slave station controller units 3 are connected with 4 test cables with 4 dummycables of the different size wire diameter not showing in Fig. 1 respectively.The specifications and models of detected test cable are that a, b, c, tetra-kinds of d are dissimilar.
Information supply in season unit 5, is network communication unit, and the information in season such as current seasonal temperature, humidity, solar illumination is provided.
Environment temperature sensor unit 4, the test ambient temperature of Real-time Obtaining and the temperature variation in process of the test.
Host computer unit 1 is connected with slave station controller unit 3 by main station controller unit 2.Dissimilar according to tetra-kinds of cable wire diameter a, b, c, the d of each slave station controller unit 3, in host computer PC unit 1, enterprising line correlation parameter arranges test operation personnel, and correlation parameter comprises initial trial electric current, initial trial temperature, target temperature, heat time, cool time etc.Thereby host computer unit 1 obtains the information of information supply in season unit 5 initial trial electric current, initial trial temperature is compensated to form the rear initial trial electric current of compensation, the rear initial trial temperature of compensation.Host computer unit 1 sends control command according to the parameter after relative parameters setting and compensation to main station controller 2.
Main station controller unit 2, is connected between each slave station controller unit 3 and host computer unit 1, and main station controller unit 2 and each slave station controller unit 3 form main website-slave station communication pattern.The control command from host computer unit 1 is accepted by parameter downloads in main station controller unit 2, controls slave station controller unit 3.2 identifications of main station controller unit are from the flag information relevant to wire diameter of slave station controller unit 3.Main station controller unit 2, according to the flag information obtaining, sends the corresponding control command from host computer unit 1.Thereby make slave station controller unit 3a, 3b, 3c, 3d according to control command control a, b, c, tetra-test cables of d, carry out circulating-heating test respectively.The information of 2 Real-time Obtaining environment temperature sensor unit 4, main station controller unit in Fig. 1 not the rotating speed of display simulation cable pressure regulation unit, test cable pressure regulation unit carry out real-Time Compensation and control the test that each slave station controller unit 3 carries out circulating-heating measurement.Main station controller unit 2 is sent to 1 interface, host computer unit by the corresponding test signal information timesharing of each substation controller unit 3 and gives real time record and demonstration.
Fig. 2 is the structural representation block diagram that the slave station controller unit in embodiment of the present utility model carries out the control of single channel circulating-heating.
Fig. 2 is the structural representation block diagram of No. 1 slave station controller unit 3a in Fig. 1, and No. 2 slave station control module 3b in Fig. 1 have the structure identical with No. 1 slave station controller unit 3a to n slave station control module 3d, and omit identical explanation.
As shown in Figure 2, in No. 1 slave station controller unit 3a, comprise analog cable signal collecting unit 6, test cable signal gathering unit 7, dummycable induction current control module 8, test cable induction current control module 9, from station control 10, electrical control cabinet 11.
Analog cable signal collecting unit 6 is connected with dummycable 12, for gathering the analog cable signal parameter such as dummycable voltage, temperature of dummycable.In analog cable signal collecting unit 6, comprise be connected to dummycable 12 two ends dummycable sampling resistor unit 6a, be connected to dummycable sampling resistor unit 6a and from the dummycable AC voltage sensor unit 6b between station control 10, and be connected in turn from the temperature sensor unit 6c between station control 10 and dummycable 12, electric current and voltage transducing unit 6d.
Test cable signal gathering unit 7 is connected with test cable 13, and its effect is the test signal parameters such as test cable voltage of acquisition test cable.Test cable signal gathering unit 7 comprise be connected to test cable 13 two ends test cable sampling resistor 7a, be connected to the two ends of test cable sampling resistor unit 7a and from the test cable AC voltage sensor unit 7b between station control 10.
Dummycable induction current control module 8 is used for changing the induction current in dummycable 12.Dummycable induction current control module 8 by the dummycable pressure regulation unit 8a being connected with electrical control cabinet 11, the dummycable D.C mutual-inductor unit 8b that is arranged on dummycable 12 ends and be connected to dummycable pressure regulation unit 8a and dummycable D.C mutual-inductor unit 8b between dummycable strong current generator 8c form.Dummycable induction current control module 8 in Fig. 2 has omitted dotted line frame.
Test cable induction current control module 9 is used for changing the induction current in test cable 13.Test cable induction current control module 9 by the test cable pressure regulation unit 9a being connected with electrical control cabinet 11, the test cable D.C mutual-inductor unit 9b that is arranged on test cable 13 two ends and be connected to test cable pressure regulation unit 9a and test cable D.C mutual-inductor unit 9b between test cable strong current generator 9c form.Test cable induction current control module 9 in Fig. 2 has omitted dotted line frame.
As depicted in figs. 1 and 2, when the official test of different size wire diameter power cable multichannel circulating-heating test unit, in host computer unit 1 according to carrying out the setting of the correlation parameters such as initial trial electric current, initial trial temperature, target temperature, heat time, cool time in actual each passage power cable wire diameter.Thereby host computer unit 1 obtains the information of information supply in season unit 5 corresponding initial trial electric current, initial trial temperature is compensated to form the rear initial trial electric current of compensation, the rear initial trial temperature of compensation.The control command from host computer unit 1 is accepted by parameter downloads in main station controller unit 2.Main station controller unit 2 identifications are simultaneously from the flag information relevant to wire diameter of slave station controller unit 3.Thereby to a, b, wire diameter that c, d are different, send corresponding control command, realize the control to the circulating-heating test of cable in different passages.
In each slave station controller unit 3, dummycable 12 produces certain induction current by dummycable D.C mutual-inductor unit 8b, analog cable signal collecting unit 6 gathers 0～5V dummycable voltage signal based on dummycable sampling resistor unit 6a, the dummycable voltage signal collecting is sent to dummycable AC voltage sensor 6b and is converted to dummycable standard voltage signal, be then sent to from station control 10 and process; The heat that dummycable 12 produces on the other hand carries out temperature signal by temperature sensor unit 6c and obtains and be sent to electric current and voltage transducing unit 6d and be converted into standard signal and be sent to from station control 10 and carry out corresponding calculation process.
Test cable 13 produces certain induction current by test cable D.C mutual-inductor unit 9b, test cable signal gathering unit gathers 0～5V test cable voltage signal based on 7a unit, test cable sampling resistor unit, the test cable voltage signal of collection is sent to test cable AC voltage sensor unit 7b and is converted to test cable standard voltage signal, be then sent to from station control 10 and process; From station control 10, according to the temperature-current information of dummycable 12 and test cable 13, electrical control cabinet 11 is sent to corresponding action command, thereby control simulation cable pressure regulation unit 8a, test cable pressure regulation unit 9a output, the electric current that changes dummycable strong current generator 8c, test cable strong current generator 9c, finally changes the electric current of dummycable 12, test cable 13 by dummycable D.C mutual-inductor unit 8b, test cable D.C mutual-inductor unit 9b accordingly.
In whole process of the test, main station controller unit 2 carries out real-Time Compensation by the information of Real-time Obtaining environment temperature detection sensor unit 4 to the rotating speed of dummycable pressure regulation unit 8a, test cable pressure regulation unit 9a, finally realizes the continuous and steady operation of different size wire diameter power cable multichannel circulating-heating test.
In seasonal variations situation, thereby host computer unit 1 obtains the information of information supply in season unit 5, corresponding initial trial electric current, initial trial temperature are compensated to form the rear initial trial electric current of compensation, the rear initial trial temperature of compensation.The control command from host computer unit 1 is accepted by parameter downloads in main station controller unit 2, thereby controls 3 pairs of initial trial electric currents of slave station controller unit and initial trial temperature compensates.The environment temperature of 2 Real-time Obtaining environment temperature sensor unit 4, main station controller unit is carried out real-Time Compensation to the rotating speed of dummycable pressure regulation unit 8a, test cable pressure regulation unit 9a simultaneously.Thereby make each passage realize stable control, final realization controlled the omnidistance self-adapting intelligent of different size wire diameter power cable multichannel circulating-heating test.
The effect of embodiment and effect
The different size wire diameter power cable multichannel circulating-heating test unit that the present embodiment provides can be according to the test information in season of obtaining, to initial trial electric current, initial trial temperature compensates, and the environment temperature in Real-time Obtaining test is carried out real-Time Compensation to the parameter of control command, can carry out corresponding initial parameter setting according to the different cable wire diameters of different passages simultaneously, and by the control command parameter downloads of mating with the wire diameter in passage to main station controller, making main station controller unit and each slave station controller unit form main website-slave station mode communicates, finally realizing the intellectuality of the circulating-heating test of different passage cables controls.A kind of different size wire diameter power cable multichannel circulating-heating test unit that the utility model provides can variation with temperature, according to the parameter of seasonal variations compensation control command, thereby realize, the intellectuality of different channel cycle heat tests is controlled, test operation steady in a long-term, without manual intervention.
The host computer unit of the present embodiment adopts and grinds magnificent IPC, host computer interface by the VC++ realization of programme, temperature sensor unit PT-100, temperature transducing unit HR-WP-N201TC20T(0～200 ℃ WB), electric current and voltage transducing unit HR-WP-N20 (4～20mA-W-B), optic fiber converter UT-277SM, RS485/232 breakout box, controller unit STM32F103VET6,50KVA test pressure regulator, cable strong current generator.These electrical equipments are easy to buy, and are easy to safeguard, reliability is high.
Above-mentioned embodiment is preferred case of the present utility model, is not used for limiting protection domain of the present utility model.
Claims (5)
1. a different size wire diameter power cable multichannel circulating-heating test unit, for the test cable of different size wire diameter being carried out to circulating-heating based on dummycable, can variation with temperature, thereby according to the parameter of seasonal variations compensation control command, it is characterized in that, comprising:
At least one slave station controller unit, connects respectively described dummycable and described test cable;
Information supply in season unit, for providing the season information of current test with temperature correlation;
Environment temperature detection sensor unit, for obtaining the environment temperature of real-time test;
Host computer unit, be connected with described information supply in season unit, for set initial trial electric current that described slave station controller unit and wire diameter described test cable match, initial trial temperature and, thereby for obtain described season information carry out the compensation of corresponding described initial trial electric current, the compensation of described initial trial temperature to form initial trial temperature after initial trial electric current after compensation, compensation; And
Main station controller unit, be connected to described in each between slave station controller unit and described host computer unit, and be connected with described environment temperature detection sensor unit, for receiving from initial trial temperature after initial trial electric current, described compensation after the described compensation of host computer unit, control described dummycable and the described test cable that slave station controller unit connects described in each, and described in Real-time Obtaining, the information of environment temperature is carried out real-Time Compensation to the parameter of described control command
Wherein, described in each, in slave station control module, comprise:
Analog cable signal collecting unit, for gathering dummycable voltage signal and the temperature signal of described dummycable;
Test cable signal gathering unit, for gathering the test cable voltage signal of described test cable;
Test cable induction current control module, for regulating the test cable induction current of described test cable;
Dummycable induction current control module, for regulating the dummycable induction current of described dummycable;
From station control, be connected with described main station controller unit and for according to described control command, described dummycable voltage signal, described test cable voltage signal, described temperature signal, control described test cable induction current control module and described dummycable induction current control module; And
Electric control cabinet, is connected to described between station control and described dummycable induction current control module.
2. different size wire diameter power cable multichannel circulating-heating test unit according to claim 1, is characterized in that:
Wherein, in described analog cable signal collecting unit, comprise and connect the dummycable sampling resistor unit at described dummycable two ends, the two ends that are connected to described dummycable sampling resistor unit and described dummycable AC voltage sensor unit between station control, and be connected in turn described from temperature sensor unit, electric current and voltage transducing unit between station control and described dummycable.
3. different size wire diameter power cable multichannel circulating-heating test unit according to claim 1, is characterized in that:
Wherein, in described test cable signal gathering unit, comprise and connect the test cable sampling resistor unit at described test cable two ends, the two ends that are connected to described test cable sampling resistor unit and described test cable AC voltage sensor unit between station control.
4. different size wire diameter power cable multichannel circulating-heating test unit according to claim 1, is characterized in that:
Wherein, described dummycable induction current control module comprise the dummycable pressure regulation unit that is connected with electrical control cabinet, be arranged on the dummycable D.C mutual-inductor unit of described analog electrical cable-end and be connected to described dummycable pressure regulation unit and described dummycable D.C mutual-inductor unit between dummycable strong current generator.
5. different size wire diameter power cable multichannel circulating-heating test unit according to claim 1, is characterized in that:
Wherein, described test cable induction current control module comprise the test cable pressure regulation unit that is connected with electrical control cabinet, be arranged on the test cable D.C mutual-inductor unit of described test cable end and be connected to described test cable pressure regulation unit and described test cable D.C mutual-inductor unit between test cable strong current generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449412.4U CN203572786U (en) | 2013-07-26 | 2013-07-26 | Multichannel circulation heating test device for power cables with different specifications and cable diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449412.4U CN203572786U (en) | 2013-07-26 | 2013-07-26 | Multichannel circulation heating test device for power cables with different specifications and cable diameters |
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| CN203572786U true CN203572786U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320449412.4U Expired - Fee Related CN203572786U (en) | 2013-07-26 | 2013-07-26 | Multichannel circulation heating test device for power cables with different specifications and cable diameters |
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| CN (1) | CN203572786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297646A (en) * | 2014-10-14 | 2015-01-21 | 中国南方电网有限责任公司电网技术研究中心 | Load cycle test insulating temperature gradient control method and system for high-voltage direct-current cables |
| CN110542321A (en) * | 2019-08-20 | 2019-12-06 | 安徽信息工程学院 | Automatic control system of cable sintering furnace |
-
2013
- 2013-07-26 CN CN201320449412.4U patent/CN203572786U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297646A (en) * | 2014-10-14 | 2015-01-21 | 中国南方电网有限责任公司电网技术研究中心 | Load cycle test insulating temperature gradient control method and system for high-voltage direct-current cables |
| CN104297646B (en) * | 2014-10-14 | 2017-02-15 | 中国南方电网有限责任公司电网技术研究中心 | Load cycle test insulating temperature gradient control method and system for high-voltage direct-current cables |
| CN110542321A (en) * | 2019-08-20 | 2019-12-06 | 安徽信息工程学院 | Automatic control system of cable sintering furnace |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20150726 |
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| EXPY | Termination of patent right or utility model |