CN205353310U - Divide open close controlling means experimental absolutely in step based on AC vacuum contactor - Google Patents
Divide open close controlling means experimental absolutely in step based on AC vacuum contactor Download PDFInfo
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- CN205353310U CN205353310U CN201620065365.7U CN201620065365U CN205353310U CN 205353310 U CN205353310 U CN 205353310U CN 201620065365 U CN201620065365 U CN 201620065365U CN 205353310 U CN205353310 U CN 205353310U
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- dspic
- core processor
- conditioning circuit
- outfan
- signal conditioning
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- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000003750 conditioning effect Effects 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 10
- 238000005070 sampling Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
Abstract
The utility model provides a divide open close controlling means experimental absolutely in step based on AC vacuum contactor, the device include voltage transformer, current transformer, signal conditioning circuit, core processor dsPIC, communication unit and industrial computer, press mutual -inductor and current transformer to be connected with signal conditioning circuit, signal conditioning circuit connects core processor dsPIC, and core processor dsPIC passes through the communication unit and connects the industrial computer. The utility model provides a because dsPIC AC vacuum contactor divides open close control technique experimental absolutely in step, carry out the dynamic control to AC vacuum contactor break -make process of the test, realize that the unable zero current branch of accomplishing of traditional breaking process breaks, has promoted its breaking capacity and mechanical durability greatly.
Description
Technical field
This utility model belongs to electric equipment experimental technique field, and a kind of especially based on dsPIC AC vacuum contactor simultaneous break charge passed control technology.
Background technology
AC vacuum contactor is to utilize electromagnetic action principle, controls moving contact breaking-closing operating by the electric current of control action coil, is widely used in AC network and electric equipment.The arcing problems of AC vacuum contactor breaking course not can solve always, has a strong impact on the safety of its service life and electric equipment.
Summary of the invention
Utility model purpose:
This utility model provides a kind of and controls device and method based on dsPIC AC vacuum contactor simultaneous break charge passed, its objective is to solve in the past existing problem.
Technical scheme:
It is a kind of based on dsPIC AC vacuum contactor simultaneous break charge passed control device, it is characterised in that: this device includes voltage transformer, current transformer, signal conditioning circuit, core processor dsPIC, communication unit and industrial computer；Pressure transformer summation current transformer is connected with signal conditioning circuit, and signal conditioning circuit connects core processor dsPIC, and core processor dsPIC connects industrial computer by communication unit.
Core processor dsPIC is also associated with control knob, reset unit, clock unit and executive component；The measurement end of voltage transformer is connected with controlling power supply, and the outfan of voltage transformer is connected with the input of signal conditioning circuit, and the measurement end of current transformer connects electrical network, and the outfan of current transformer is connected with the input of signal conditioning circuit；The outfan of signal conditioning circuit and the signal input part RA0 of core processor dsPIC, RA1 is connected, the outfan of control knob is connected with the signal input part RA2 of core processor dsPIC, the outfan of reset unit is connected with core processor dsPIC reset signal input RB1, the outfan of clock unit and the clock signal input terminal SOSCI of core processor dsPIC4, SOSCO is connected, the end that controls of performance element is connected with the signal output part RA3 of core processor dsPIC4, the input of communication unit and the communication signal end SDIx of core processor dsPIC4, SDOx, SCKx, SSx/FSYNCx is connected, the outfan of communication unit is connected with the serial communication interface of industrial computer.
Utilize the above-mentioned experimental control method implemented based on dsPIC AC vacuum contactor simultaneous break charge passed control device, it is characterized in that: the step of the method is as follows: utilize core processor dsPIC that supply voltage is carried out real-time sampling, after voltage exceedes action lower voltage limit, controlled member is determined phase, timing working carries out conservative control, ensure that AC vacuum contactor is in optimum start state, after core processor dsPIC receives adhesive instruction, by low-voltage direct-current holding circuit, (low-voltage direct-current holding circuit belongs to catalyst self structure, belong to a part for catalyst) the sticking energy of this electrical equipment is provided, realize AC vacuum contactor reliably to inhale；Utilize core processor dsPIC real-time measure and control button information, once receive disjunction action command, main circuit current is carried out real-time sampling by current transformer by core processor dsPIC, the zero-current-break control program of three-phase circuit is entered when electric current arrives zero point, realize Zero current disjunction, the action message of AC vacuum contactor is sent on industrial computer by communication unit by core processor dsPIC, shows work state information and the break-make information of AC vacuum contactor.
Advantage and effect
This utility model is a kind of based on dsPIC AC vacuum contactor simultaneous break charge passed control device and method, the utility model proposes based on dsPIC AC vacuum contactor simultaneous break charge passed control technology, AC vacuum contactor charge passed process is dynamically controlled, realize the Zero current disjunction that tradition breaking course cannot complete, be greatly improved its breaking capacity and mechanical life.
Accompanying drawing explanation
Fig. 1 controls system schematic based on dsPIC AC vacuum contactor simultaneous break charge passed；
Fig. 2 is based on dsPIC AC vacuum contactor simultaneous break charge passed Control System Software flow chart；
Wherein, 1, voltage transformer；2, current transformer；3, signal conditioning circuit；4, dsPIC；5, control knob；6, reset unit；7, clock unit；8, executive component；9, communication unit；10, industrial computer；11, power supply is controlled；12, electrical network.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further:
As shown in the figure, the utility model proposes a kind of based on dsPIC AC vacuum contactor simultaneous break charge passed control device, this device includes voltage transformer 1, current transformer 2, signal conditioning circuit 3, core processor dsPIC4, communication unit 9 and industrial computer 10；Pressure transformer 1 summation current transformer 2 is connected with signal conditioning circuit 3, and signal conditioning circuit 3 connects core processor dsPIC4, core processor dsPIC4 and connects industrial computer 10 by communication unit 9.
Core processor dsPIC4 is also associated with control knob 5, reset unit 6, clock unit 7 and executive component 8；The measurement end of voltage transformer 1 is connected with controlling power supply 11, the outfan of voltage transformer 1 is connected with the input of signal conditioning circuit 3, the measurement end of current transformer 2 connects electrical network 12, and the outfan of current transformer 2 is connected with the input of signal conditioning circuit 3；The outfan of signal conditioning circuit 3 and the signal input part RA0 of core processor dsPIC4, RA1 is connected, the outfan of control knob 5 is connected with the signal input part RA2 of core processor dsPIC4, the outfan of reset unit 6 is connected with core processor dsPIC4 reset signal input RB1, the outfan of clock unit 7 and the clock signal input terminal SOSCI of core processor dsPIC4, SOSCO is connected, the end that controls of performance element 8 is connected with the signal output part RA3 of core processor dsPIC4, the input of communication unit 9 and the communication signal end SDIx of core processor dsPIC4, SDOx, SCKx, SSx/FSYNCx is connected, the outfan of communication unit 9 is connected with the serial communication interface of industrial computer 10.
AC vacuum contactor simultaneous break charge passed controls technical software part and is used for realizing signals collecting, process and data transmission, work process is as follows: supply voltage is carried out real-time sampling by dsPIC, after voltage exceedes action lower voltage limit, controlled member is determined phase, timing working carries out conservative control, ensure that AC vacuum contactor is in optimum start state, after receiving adhesive instruction, the sticking energy of this electrical equipment is provided, it is achieved the reliable adhesive of AC vacuum contactor by low-voltage direct-current holding circuit.DsPIC real-time measure and control button information, once receive disjunction action command, main circuit current is carried out real-time sampling by current transformer by dsPIC, enters the zero-current-break control program of three-phase circuit when electric current arrives zero point, it is achieved Zero current disjunction.The action message of AC vacuum contactor is sent on industrial computer by communication unit by dsPIC, shows work state information and the break-make information of AC vacuum contactor.
Claims (2)
1. one kind controls device based on AC vacuum contactor simultaneous break charge passed, it is characterised in that: this device includes voltage transformer (1), current transformer (2), signal conditioning circuit (3), core processor dsPIC (4), communication unit (9) and industrial computer (10)；Pressure transformer (1) summation current transformer (2) is connected with signal conditioning circuit (3), signal conditioning circuit (3) connects core processor dsPIC (4), core processor dsPIC (4) and connects industrial computer (10) by communication unit (9).
2. according to claim 1 based on AC vacuum contactor simultaneous break charge passed control device, it is characterised in that: core processor dsPIC (4) is also associated with control knob (5), reset unit (6), clock unit (7) and executive component (8)；The measurement end of voltage transformer (1) is connected with controlling power supply (11), the outfan of voltage transformer (1) is connected with the input of signal conditioning circuit (3), the measurement end of current transformer (2) connects electrical network (12), and the outfan of current transformer (2) is connected with the input of signal conditioning circuit (3)；The outfan of signal conditioning circuit (3) and the signal input part (RA0 of core processor dsPIC (4), RA1) it is connected, the outfan of control knob (5) is connected with the signal input part (RA2) of core processor dsPIC (4), the outfan of reset unit (6) is connected with core processor dsPIC (4) reset signal input (RB1), the outfan of clock unit (7) and the clock signal input terminal (SOSCI of core processor dsPIC (4), SOSCO) it is connected, the control end of executive component (8) is connected with the signal output part (RA3) of core processor dsPIC (4), the input of communication unit (9) and the communication signal end (SDIx of core processor dsPIC (4), SDOx, SCKx, SSx/FSYNCx) it is connected, the outfan of communication unit (9) is connected with the serial communication interface of industrial computer (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520950141X | 2015-11-25 | ||
| CN201520950141 | 2015-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205353310U true CN205353310U (en) | 2016-06-29 |
Family
ID=56177308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620065365.7U Active CN205353310U (en) | 2015-11-25 | 2016-01-22 | Divide open close controlling means experimental absolutely in step based on AC vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205353310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487008A (en) * | 2015-11-25 | 2016-04-13 | 国家电网公司 | Synchronous breaking on-off test control device and method based on alternating-current vacuum contactor |
-
2016
- 2016-01-22 CN CN201620065365.7U patent/CN205353310U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487008A (en) * | 2015-11-25 | 2016-04-13 | 国家电网公司 | Synchronous breaking on-off test control device and method based on alternating-current vacuum contactor |
| CN105487008B (en) * | 2015-11-25 | 2019-05-03 | 国家电网公司 | Based on AC vacuum contactor simultaneous break charge passed control device and method |
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| GR01 | Patent grant |