CN105487008B - Based on AC vacuum contactor simultaneous break charge passed control device and method - Google Patents
Based on AC vacuum contactor simultaneous break charge passed control device and method Download PDFInfo
- Publication number
- CN105487008B CN105487008B CN201610045302.XA CN201610045302A CN105487008B CN 105487008 B CN105487008 B CN 105487008B CN 201610045302 A CN201610045302 A CN 201610045302A CN 105487008 B CN105487008 B CN 105487008B
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- Prior art keywords
- dspic
- core processor
- vacuum contactor
- output end
- control
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000003750 conditioning effect Effects 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
Abstract
One kind being based on AC vacuum contactor simultaneous break charge passed control device, which includes voltage transformer, current transformer, signal conditioning circuit, core processor dsPIC, communication unit and industrial personal computer；Pressure mutual inductor and current transformer are connect with signal conditioning circuit, and signal conditioning circuit connects core processor dsPIC, and core processor dsPIC connects industrial personal computer by communication unit.It is proposed by the present invention to be based on dsPIC AC vacuum contactor simultaneous break charge passed control technology, dynamic control is carried out to AC vacuum contactor charge passed process, it realizes the impossible Zero current disjunction of traditional breaking course, greatly improves its breaking capacity and mechanical life.
Description
Technical field
The invention belongs to electrical equipment experimental technique fields, and especially a kind of synchronous based on dsPIC AC vacuum contactor
Disjunction charge passed control technology.
Background technique
AC vacuum contactor is to pass through the current control moving contact division of control action coil using electromagnetic action principle
Lock operation, is widely used in AC network and electrical equipment.The arcing problems of AC vacuum contactor breaking course are always not
It can solve, seriously affect the safety of its service life and electrical equipment.
Summary of the invention
Goal of the invention:
The present invention provides one kind and is based on dsPIC AC vacuum contactor simultaneous break charge passed control device and method,
It is the problems of previous the purpose is to solve.
Technical solution:
One kind being based on dsPIC AC vacuum contactor simultaneous break charge passed control device, it is characterised in that: the device
Including voltage transformer, current transformer, signal conditioning circuit, core processor dsPIC, communication unit and industrial personal computer；Pressure is mutual
Sensor and current transformer are connect with signal conditioning circuit, and signal conditioning circuit connects core processor dsPIC, core processor
DsPIC connects industrial personal computer by communication unit.
Core processor dsPIC is also connected with control button, reset unit, clock unit and executive component；Mutual induction of voltage
The measurement end of device is connect with control power supply, and the output end of voltage transformer is connected with the input terminal of signal conditioning circuit, electric current
The measurement end of mutual inductor connects power grid, and the output end of current transformer is connected with the input terminal of signal conditioning circuit；Signal tune
The output end of reason circuit is connected with signal input part RA0, RA1 of core processor dsPIC, the output end and core of control button
The signal input part RA2 of heart processor dsPIC is connected, the output end and core processor dsPIC reset signal of reset unit
Input terminal RB1 is connected, the output end of clock unit and clock signal input terminal SOSCI, SOSCO of core processor dsPIC4
It is connected, the control terminal of execution unit is connected with the signal output end RA3 of core processor dsPIC4, the input of communication unit
End is connected with communication signal end SDIx, SDOx, SCKx, SSx/FSYNCx of core processor dsPIC4, communication unit
Output end is connected with the serial communication interface of industrial personal computer.
Utilize the above-mentioned test implemented based on dsPIC AC vacuum contactor simultaneous break charge passed control device
Control method, it is characterised in that: the step of this method is as follows: being adopted in real time using core processor dsPIC to supply voltage
Sample is determined phase, timing working to controlled member and is rationally controlled, guarantee AC vacuum after voltage is more than movement lower voltage limit
Contactor is in optimum start state, after core processor dsPIC is connected to actuation instruction, by low-voltage direct-current holding circuit
(low-voltage direct-current holding circuit belongs to contactor self structure, belongs to a part of contactor) provides the sticking energy of the electric appliance
Amount realizes that AC vacuum contactor is reliably inhaled；Using core processor dsPIC real-time measure and control button information, once it is connected to
Disjunction action command, core processor dsPIC carry out real-time sampling to main circuit current by current transformer, when electric current reaches
Enter the zero-current-break control program of three-phase circuit when zero point, realizes that Zero current disjunction, core processor dsPIC will exchange very
The action message of empty contactor is sent on industrial personal computer by communication unit, shows the work state information of AC vacuum contactor
With on-off information.
Advantage and effect
The present invention is a kind of based on dsPIC AC vacuum contactor simultaneous break charge passed control device and method, originally
Invention propose based on dsPIC AC vacuum contactor simultaneous break charge passed control technology, it is logical to AC vacuum contactor
Disconnected test process carries out dynamic control, realizes the impossible Zero current disjunction of traditional breaking course, greatly improves its disjunction
Ability and mechanical life.
Detailed description of the invention
Fig. 1 is based on dsPIC AC vacuum contactor simultaneous break charge passed control system schematic diagram；
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 button；6, multiple
Bit location；7, clock unit；8, executive component；9, communication unit；10, industrial personal computer；11, power supply is controlled；12, power grid.
Specific embodiment
Following further describes the present invention with reference to the drawings:
It is controlled as shown, the invention proposes one kind based on dsPIC AC vacuum contactor simultaneous break charge passed
Device, the device include voltage transformer 1, current transformer 2, signal conditioning circuit 3, core processor dsPIC4, communication list
Member 9 and industrial personal computer 10；Pressure mutual inductor 1 and current transformer 2 are connect with signal conditioning circuit 3, and signal conditioning circuit 3 connects core
Processor dsPIC4, core processor dsPIC4 connect industrial personal computer 10 by communication unit 9.
Core processor dsPIC4 is also connected with control button 5, reset unit 6, clock unit 7 and executive component 8；Voltage
The measurement end of mutual inductor 1 is connect with control power supply 11, the output end of voltage transformer 1 and the input terminal phase of signal conditioning circuit 3
The measurement end of connection, current transformer 2 connects power grid 12, the output end of current transformer 2 and the input terminal of signal conditioning circuit 3
It is connected；The output end of signal conditioning circuit 3 is connected with signal input part RA0, RA1 of core processor dsPIC4, control
The output end of button 5 is connected with the signal input part RA2 of core processor dsPIC4, the output end and core of reset unit 6
Processor dsPIC4 reset signal input terminal RB1 is connected, the output end of clock unit 7 and the clock of core processor dsPIC4
Signal input part SOSCI, SOSCO are connected, the control terminal of execution unit 8 and the signal output end of core processor dsPIC4
RA3 is connected, communication signal end SDIx, SDOx of the input terminal of communication unit 9 and core processor dsPIC4, SCKx,
SSx/FSYNCx is connected, and the output end of communication unit 9 is connected with the serial communication interface of industrial personal computer 10.
AC vacuum contactor simultaneous break charge passed control technology software section for realizing signal acquisition, processing and
Data transmission, the course of work are as follows: dsPIC carries out real-time sampling to supply voltage, right after voltage is more than movement lower voltage limit
Controlled member determines phase, timing working is rationally controlled, and guarantees that AC vacuum contactor is in optimum start state, inhales when being connected to
After closing instruction, the sticking energy of the electric appliance is provided by low-voltage direct-current holding circuit, realizes that AC vacuum contactor is reliably attracted.
DsPIC real-time measure and control button information, once being connected to disjunction action command, dsPIC is by current transformer to main circuit electricity
Stream carries out real-time sampling, and the zero-current-break control program of three-phase circuit is entered when electric current reaches zero point, realizes zero current point
It is disconnected.DsPIC sends the action message of AC vacuum contactor on industrial personal computer by communication unit, display AC vacuum contact
The work state information and on-off information of device.
Claims (1)
1. one kind is based on AC vacuum contactor simultaneous break charge passed control device, it is characterised in that: the device includes electricity
Press mutual inductor (1), current transformer (2), signal conditioning circuit (3), core processor dsPIC (4), communication unit (9) and work
Control machine (10)；Voltage transformer (1) and current transformer (2) are connect with signal conditioning circuit (3), and signal conditioning circuit (3) is even
It connects core processor dsPIC (4), core processor dsPIC (4) passes through communication unit (9) connection industrial personal computer (10)；
Core processor dsPIC (4) is also connected with control button (5), reset unit (6), clock unit (7) and executive component
(8)；The measurement end of voltage transformer (1) is connect with control power supply (11), output end and the signal condition electricity of voltage transformer (1)
The input terminal on road (3) is connected, and the measurement end of current transformer (2) connects power grid (12), the output end of current transformer (2) and
The input terminal of signal conditioning circuit (3) is connected；The output end of signal conditioning circuit (3) and the letter of core processor dsPIC (4)
Number input terminal (RA0, RA1) is connected, the output end of control button (5) and the signal input part of core processor dsPIC (4)
(RA2) it is connected, the output end of reset unit (6) is connected with core processor dsPIC (4) reset signal input terminal (RB1),
The output end of clock unit (7) is connected with the clock signal input terminal (SOSCI, SOSCO) of core processor dsPIC (4), holds
The control terminal of row unit (8) is connected with the signal output end (RA3) of core processor dsPIC (4), communication unit (9) it is defeated
Enter end to be connected with the communication signal end (SDIx, SDOx, SCKx, SSx/FSYNCx) of core processor dsPIC (4), communicate
The output end of unit (9) is connected with the serial communication interface of industrial personal computer (10):
The device is to be carried out using core processor dsPIC (4) to supply voltage real using the device of method control as follows control
When sample, voltage be more than movement lower voltage limit after, phase, timing working determine to controlled member and rationally controlled, guarantee exchange
Vacuum contactor is in optimum start state, after core processor dsPIC (4) is connected to actuation instruction, is inhaled by low-voltage direct-current
It holds circuit and the sticking energy of the contactor is provided, realize that AC vacuum contactor is reliably inhaled；It utilizes core processor dsPIC (4)
Real-time measure and control button information, once being connected to disjunction action command, core processor dsPIC (4) passes through current transformer pair
Main circuit current carries out real-time sampling, and the zero-current-break control program of three-phase circuit is entered when electric current reaches zero point, realizes
Zero current disjunction, core processor dsPIC (4) send industry control by communication unit for the action message of AC vacuum contactor
On machine, the work state information and on-off information of AC vacuum contactor are shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045302.XA CN105487008B (en) | 2015-11-25 | 2016-01-22 | Based on AC vacuum contactor simultaneous break charge passed control device and method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828889 | 2015-11-25 | ||
| CN2015108288897 | 2015-11-25 | ||
| CN201610045302.XA CN105487008B (en) | 2015-11-25 | 2016-01-22 | Based on AC vacuum contactor simultaneous break charge passed control device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105487008A CN105487008A (en) | 2016-04-13 |
| CN105487008B true CN105487008B (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610045302.XA Active CN105487008B (en) | 2015-11-25 | 2016-01-22 | Based on AC vacuum contactor simultaneous break charge passed control device and method |
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| CN106483458B (en) * | 2016-11-23 | 2023-08-01 | 国家电网公司 | Digital low-voltage direct-current switch on-off capability inspection device and inspection method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205353310U (en) * | 2015-11-25 | 2016-06-29 | 国家电网公司 | Divide open close controlling means experimental absolutely in step based on AC vacuum contactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200972499Y (en) * | 2006-12-01 | 2007-11-07 | 山西兰花科技创业股份有限公司 | On-line on-off detection device for low pressure vacuum pipe |
| CN103529383B (en) * | 2012-02-29 | 2015-10-14 | 温州奔龙自动化科技有限公司 | Automatic testing equipment |
| CN202693760U (en) * | 2012-06-29 | 2013-01-23 | 东莞市中汇瑞德电子有限公司 | Electromagnetic relay test device |
| CN103018667B (en) * | 2012-12-11 | 2015-05-20 | 福州大学 | Characteristic test analysis system for alternating current contactor |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205353310U (en) * | 2015-11-25 | 2016-06-29 | 国家电网公司 | Divide open close controlling means experimental absolutely in step based on AC vacuum contactor |
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| CN105487008A (en) | 2016-04-13 |
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