CN103761855A - Contact bounce and actuation time test system based on power line communication - Google Patents
Contact bounce and actuation time test system based on power line communication Download PDFInfo
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- CN103761855A CN103761855A CN201410051462.6A CN201410051462A CN103761855A CN 103761855 A CN103761855 A CN 103761855A CN 201410051462 A CN201410051462 A CN 201410051462A CN 103761855 A CN103761855 A CN 103761855A
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Abstract
The invention relates to a contact bounce and actuation time test system based on power line communication, which comprises a main circuit power supply and a control circuit power supply, wherein the main circuit power supply forms a power supply loop through a protection circuit module, a load, a moving contact of a switching device, a clearance between contacts, and a fixed contact of the switching device; a communication signal transmitting module and a communication signal receiving module are connected in series in a main circuit and used for detecting working states of the contacts; the control circuit power supply provides a working power supply to a singlechip control system M; the singlechip control system transmits an instruction through a data transmitting module, and applies into a first coupling circuit through a signal modulation circuit and a filter circuit; and the first coupling circuit controls working of the communication signal transmitting module. The system realizes on-line real-time measurement of contact bounce and actuation time of the switching device, monitors bounce situations and actuation time of the contacts, can further provide a contact actuation parameter to an intelligent control module of the device, and improves the timeliness and accuracy of intelligent control.
Description
Technical field
The present invention relates to contact monitoring technique field, particularly a kind of contact bounce based on power line carrier, PLC and actuation time test macro.
Background technology
For contact switch electrical equipment (as: relay, contactor, isolating switch etc.), in the course of the work, often there is contact bounce.Spring between contact, not only affects the safety of system and stablizes, and the electric arc producing is understood scaling loss contact, affects the electric life of device for switching.Therefore, how reducing the spring between (even eliminating) contact, is the problem that electrical equipment researcher pays close attention to always in recent years.Research contact bounce, just must and test and analyze contact bounce situation actuation time.At present, to the following several method of the normal employing of the test of contact bounce and actuation time:
(1) adopt high-speed camera to carry out high-speed capture to the target of mark, and by Sub-pixel Technique, extract the position of target image, realize the heed contacted measure of contact bounce and actuation time.The method is measured accurately, precision is high, still, expensive, test all-purpose is poor.
(2) level signal is put on to contact two ends, according to the variation of level signal, spring situation and the actuation time of test contact.This measuring method has circuit and is simple and easy to realization, with low cost; The advantages such as accuracy of measurement and real-time are good.But, spring situation and actuation time when this method of testing can only be measured contact system zero load; When contact band carries (contact seals in energized circuit, carries out normal being with while carrying breaking-closing operating), test level cannot be applied on contact with contact load voltage simultaneously, cannot measure.Contact bounce electric arc in making process, or the contact bounce electric arc under failure condition, the electrical wear that contact is caused exactly occurs in again contact band and carries under this actual condition of spring.Electric device with a contact carries during work at band, has the situations such as electric power, prebreakdown, arc heat electrical effect between its dynamic/static contact, has changed the physical characteristics of contact, causes band to carry contact bounce in situation and the lower contact bounce of no-load condition differs greatly.Therefore, spring situation and actuation time when Measurement accuracy electrical contact band carries, more can react its actual condition, judge the operation characteristic that it is actual.
(3) utilize high precision laser displacement sensor to pass through laser triangulation principle, measure the characteristic parameter of device for switching contact bounce, and spring and the actuation time doing relevant analysis and carry out test contact.In measuring process, do not change the inherent characteristic of switch, installation of sensors and anti-interference aspect have advantageous advantage.Because laser displacement sensor can directly be exported the voltage signal that is proportional to displacement, for high-speed camera, more direct convenience of the application aspect range finding, this measuring method also belongs to non-contact measurement, and measurement is convenient, isolation performance is good; Can in the situation that contact band carries, measure contact bounce information and actuation time, measuring accuracy is high.But also exist cost high, be easily disturbed, the shortcoming such as data processing complex; For different electrical equipment, need to adjust measurement parameter, versatility is poor; The vibration that moving contact is caused at three dimensions and spring are difficult for differentiating; Also be inconvenient to introduce real-time control system, carry out the spring Parameter and Action time of on-line testing contact.
Summary of the invention
The object of this invention is to provide a kind of contact bounce based on power line carrier, PLC and actuation time test macro, having realized the online of device for switching contact bounce and actuation time measures in real time, both spring situation and the actuation time of contact had been monitored, can provide contact action time parameter for the intelligent control module of electrical equipment again, can real-time online adjustment because the dispersiveness of mechanism changes caused actuation time, improved accuracy and the real-time of Based Intelligent Control.
The present invention adopts following scheme to realize: a kind of contact bounce based on power line carrier, PLC and actuation time test macro, comprise main circuit power and control circuit power supply, it is characterized in that: described main circuit power is through the static contact composition current supply circuit of opening distance, device for switching between holding circuit module, load, device for switching moving contact, contact; Holding circuit module is for protecting main circuit; Signal of communication sending module and signal of communication receiver module are serially connected with in main circuit, are used for detection contact duty; When signal of communication sending module sends data to signal of communication receiver module, if dynamic/static contact is in open mode, open apart from opening distance for open position, signal of communication receiver module cannot receive valid data, and once dynamic/static contact is closed, open apart from opening distance in attracted position, signal of communication receiver module receives valid data, and is sent in single-chip computer control system; Described control circuit power supply provides working power for single-chip computer control system M; Single-chip computer control system sends instruction within signal modulation circuit is modulated to the signal band of power carrier requirement by this instruction through sending data module, then after the undesired signal in filtering circuit filtered signal, be applied in the first coupled circuit the first coupled circuit control signal of communication sending module work; Be serially connected in the signal of communication receiver module of movable contact head end, the carrier signal receiving is sent in the second coupled circuit, after the filtering of circuit is processed after filtering, by signal demodulating circuit, extract useful test signal, through reception data module, send in single-chip computer control system, carry out data identification, the similarities and differences that transmit and receive data by contrast, can judge contact real-time status; Described single-chip computer control system is also connected with module, display module and analysis module is set; Described analysis module is for analyzing the operation conditions of contact system.
In an embodiment of the present invention, described single-chip computer control system is also connected with communication module, and described communication module is responsible for carrying out bidirectional data communication with host computer.
Outstanding advantages of the present invention is as follows:
(1) first electric power carrier communication technology is applied in the contact bounce and actuation time test macro of device for switching, can be with carrying spring number of times, bounce time and an actuation time of measuring contact system.System have versatility good, measure accurately, real-time is high, convenient and swift, isolation is good, antijamming capability is strong, cost performance high.
(2) adopt the spring of PLC technology Test Switchboard electrical contact and actuation time, can directly be integrated in intelligent control system, carry out the control parameter correction of switch adhesive motion process and disjunction motion process, can effectively adjust because the dispersiveness of mechanism changes caused actuation time.
Accompanying drawing explanation
Fig. 1 is system principle diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Power line carrier, PLC is PLC, is the abbreviation of English Power line Communication.Power line carrier, PLC is also power line communication or power line carrier communication, refers to a kind of communication mode that utilizes line of electric force transmission data and voice signal, can on the basis that does not affect electric energy transmitting, utilize power network resources potentiality, realizes arrowband or broadband connections.Power line carrier, PLC is the another communication network after relay letter, phone, radio communication, satellite communication, it is the distinctive a kind of communication mode of electric system, utilize existing line of electric force, mode by carrier wave is carried out high-speed transfer by analog or digital signal, and its maximum feature is carried out signal transmission on line of electric force.Therefore can be with telecommunication.
The contact system of device for switching, is used for connecting or point deenergizing.Therefore, utilize electric power carrier communication technology, spring situation and the actuation time of detection contact system, there is the features such as rapid, accurate, with low cost, easy to operate.Especially in the situation that not changing construction of switch, calibration tape carries easily contact system spring situation and actuation time, can be integrated into easily in control system, for the Based Intelligent Control of device for switching provides valuable signal.
Concrete, refer to Fig. 1, in figure, A is the static contact of device for switching, C is clearance between open contacts (distance between contact), B is the moving contact of device for switching, P1 is main circuit power, R is holding circuit module, Z is load, D1 is signal of communication sending module, D2 is signal of communication receiver module, M1 is coupled circuit 1, M2 is coupled circuit 2, T1 is filtering circuit 1, T2 is filtering circuit 2, X1 is signal modulation circuit, X2 is signal demodulating circuit, F is for sending data module, S is for receiving data module, P2 is control circuit power supply, M is single-chip computer control system, N1 is communication module, N2 is for arranging module, N3 is display module, N4 is analysis module.
As can be seen from the figure: main circuit power P1 is through the static contact A composition current supply circuit apart from C, device for switching of opening between holding circuit module R, load Z, device for switching moving contact B, contact, and holding circuit module R is for protecting main circuit; Signal of communication sending module D1 and signal of communication receiver module D2 are serially connected with in main circuit, are used for detection contact duty.When signal of communication sending module D1 sends data to signal of communication receiver module D2, if dynamic/static contact is in open mode, opening apart from C is that open position is opened distance, signal of communication receiver module D2 cannot receive valid data, and once dynamic/static contact is closed, open apart from C and open distance in attracted position, signal of communication receiver module D2 can receive valid data at once, and be sent in single-chip computer control system M, thus, can test fast and accurately spring situation and the actuation time of dynamic/static contact.Control circuit power supply P2 links single-chip computer control system M, for it provides needed working power; Single-chip computer control system M sends instruction through sending data module F, the raw data that signal modulation circuit X1 sends single-chip computer control system is by certain mode, within being modulated to the signal band of power carrier requirement, after undesired signal in filtering circuit T1 filtered signal, be applied in coupled circuit M1, coupled circuit M1 controls signal of communication sending module D1 work; Be serially connected in the signal of communication receiver module D2 of moving contact B end, the carrier signal receiving is sent in coupled circuit M2, after the filtering of circuit T2 is processed after filtering, by signal demodulating circuit X2, extract useful test signal, through receiving data module S, send in single-chip computer control system M, carry out data identification, the similarities and differences that transmit and receive data by contrast, can judge contact real-time status, i.e. spring number of times, bounce time and the actuation time of contact.
When device for switching contact system is worked, can guarantee that coupled circuit can effectively be sent to moving contact B end from static contact A end by carrier signal, do not affect again the transmission of electric current simultaneously, this is one method of testing cleverly.
Single-chip computer control system M with communication module N1, module N2, display module N3 are set, analysis module N4 is connected, communication module N1 is responsible for carrying out bidirectional data communication with host computer, tested data are passed to master system, to incorporate in the characteristic test system of whole switch, can also provide valid data for the Endurance Prediction of device for switching, meanwhile, also can accept the instruction of host computer; Module N2 is set for test parameter being set and recording number of times; Display module N3, for contact action time, spring number of times and the bounce time of direct display switch electrical equipment, is used for on-the-spot test, and analysis module N4 is for analyzing the operation conditions of contact system.
In device for switching contact closure and breaking course, monolithic control system M control power line carrier, PLC module is carried out data transmit-receive fast, thereby realizes the Quick Catch function of contact bounce signal and actuation time.Communication in device, show and circuit is set and be responsible for carrying out two-way communication with host computer, conveniently carry out automatic measurement and integrated with other test macros; Show the spring number of times, bounce time and the actuation time that detect; Transmission, the inbound pacing of useful signal are set, thereby can adjust the resolution of spring signal.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (2)
- A contact bounce based on power line carrier, PLC and actuation time test macro, comprise main circuit power and control circuit power supply, it is characterized in that: described main circuit power is through the static contact composition current supply circuit of opening distance, device for switching between holding circuit module, load, device for switching moving contact, contact; Holding circuit module is for protecting main circuit; Signal of communication sending module and signal of communication receiver module are serially connected with in main circuit, are used for detection contact duty; When signal of communication sending module sends data to signal of communication receiver module, if dynamic/static contact is in open mode, open apart from opening distance for open position, signal of communication receiver module cannot receive valid data, and once dynamic/static contact is closed, open apart from opening distance in attracted position, signal of communication receiver module receives valid data, and is sent in single-chip computer control system; Described control circuit power supply provides working power for single-chip computer control system M; Single-chip computer control system sends instruction within signal modulation circuit is modulated to the signal band of power carrier requirement by this instruction through sending data module, then after the undesired signal in filtering circuit filtered signal, be applied in the first coupled circuit the first coupled circuit control signal of communication sending module work; Be serially connected in the signal of communication receiver module of movable contact head end, the carrier signal receiving is sent in the second coupled circuit, after the filtering of circuit is processed after filtering, by signal demodulating circuit, extract useful test signal, through reception data module, send in single-chip computer control system, carry out data identification, the similarities and differences that transmit and receive data by contrast, can judge contact real-time status; Described single-chip computer control system is also connected with module, display module and analysis module is set; Described analysis module is for analyzing the operation conditions of contact system.
- Contact bounce based on power line carrier, PLC according to claim 1 and actuation time test macro, it is characterized in that: described single-chip computer control system is also connected with communication module, described communication module is responsible for carrying out bidirectional data communication with host computer.
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| CN201410051462.6A CN103761855B (en) | 2014-02-15 | 2014-02-15 | A kind of based on power carrier communication contact bounce and opening time test macro |
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| CN201410051462.6A CN103761855B (en) | 2014-02-15 | 2014-02-15 | A kind of based on power carrier communication contact bounce and opening time test macro |
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| CN103761855B CN103761855B (en) | 2016-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511960A (en) * | 2015-11-25 | 2016-04-20 | 上海无线电设备研究所 | Method for parallel shooting and bouncing rays based on dynamic load balancing technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925723A (en) * | 1974-11-29 | 1975-12-09 | Burroughs Corp | System for simulating switch contact bounce |
| CN201503472U (en) * | 2009-05-27 | 2010-06-09 | 福州大学 | System for testing electromagnetic apparatus |
| CN202066947U (en) * | 2011-04-28 | 2011-12-07 | 苏州西门子电器有限公司 | Contact motion detecting device |
| CN202770558U (en) * | 2012-08-03 | 2013-03-06 | 北京电研华源电力技术有限公司 | Device and system for monitoring temperature of breaker contact based on carrier communication |
| CN103018667A (en) * | 2012-12-11 | 2013-04-03 | 福州大学 | Characteristic test analysis system for alternating current contactor |
-
2014
- 2014-02-15 CN CN201410051462.6A patent/CN103761855B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925723A (en) * | 1974-11-29 | 1975-12-09 | Burroughs Corp | System for simulating switch contact bounce |
| CN201503472U (en) * | 2009-05-27 | 2010-06-09 | 福州大学 | System for testing electromagnetic apparatus |
| CN202066947U (en) * | 2011-04-28 | 2011-12-07 | 苏州西门子电器有限公司 | Contact motion detecting device |
| CN202770558U (en) * | 2012-08-03 | 2013-03-06 | 北京电研华源电力技术有限公司 | Device and system for monitoring temperature of breaker contact based on carrier communication |
| CN103018667A (en) * | 2012-12-11 | 2013-04-03 | 福州大学 | Characteristic test analysis system for alternating current contactor |
Non-Patent Citations (1)
| Title |
|---|
| 许志红，张培铭，郑昕: "带有通信功能的新型智能交流接触器", 《低压电器》, no. 4, 25 August 2011 (2011-08-25), pages 10 - 11 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511960A (en) * | 2015-11-25 | 2016-04-20 | 上海无线电设备研究所 | Method for parallel shooting and bouncing rays based on dynamic load balancing technology |
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