CN107976573A - A kind of relay surge voltage current management system - Google Patents
A kind of relay surge voltage current management system Download PDFInfo
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- CN107976573A CN107976573A CN201711456776.4A CN201711456776A CN107976573A CN 107976573 A CN107976573 A CN 107976573A CN 201711456776 A CN201711456776 A CN 201711456776A CN 107976573 A CN107976573 A CN 107976573A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
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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
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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
- G01R31/40—Testing power supplies
- G01R31/42—AC power supplies
-
- 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
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- 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
- G05B2219/25—Pc structure of the system
- G05B2219/25242—Relay
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of relay surge voltage current management system, including a logic analysis module and the transactional analysis module and relay control module that are connected with logic analysis module, wherein, transactional analysis module includes AC power sample circuit and AC Frequency Analysis circuit, relay control module includes actuating of relay control circuit and actuating of relay detection circuit, logic analysis module by analysis and compares, re-optimization is carried out to the closed and disconnected time of relay, its optimize criterion be ensure relay the closed and disconnected time be AC power phase zero crossing when, magnitude of voltage is minimum at this time, current value is also minimum, surge voltage electric current is also minimum.The management system, does not influence the service life of relay, and the design margin requirement to circuit is relatively low, selects the requirement of component also not high, it is easy to meets the design and use life requirements of circuit, design cost reduces, and is conducive to improve the competitiveness of product in market.
Description
Technical field
The present invention relates to relay circuit control system, more particularly to a kind of relay surge voltage current management system.
Background technology
In the various circuits of AC power, various loads are controlled usually using relay.On and off is connect in relay
While opening load, switch if not at the phase zero point of alternating current, larger surge voltage and electric current, perception electricity will be produced
Road produces larger backward voltage and clutter at the same time, will disturb the normal work of the electric appliance such as TV and Communication Equipment, and will
Influence circuit service life itself.In circuit it is generally necessary to design larger surplus, and select several times pressure-resistant and several times electricity
Desired component is flowed, to meet the requirement of the stability of circuit and service life.
The content of the invention
The object of the present invention is to provide a kind of relay surge voltage current management system.
According to an aspect of the invention, there is provided a kind of relay surge voltage current management system, including one is patrolled
Analysis module and the transactional analysis module and relay control module that are connected with logic analysis module are collected,
Wherein,
Transactional analysis module includes AC power sample circuit and AC Frequency Analysis circuit, AC power sample circuit with
AC power is connected, and after carrying out isolated buck to AC power, then carries out the sampling of alternating voltage and phase, exchange frequency
Rate analysis circuit is connected with AC power sample circuit and logic analysis module, for analyzing the phase information of AC power simultaneously
Send it to logic analysis module；
Relay control module includes actuating of relay control circuit and actuating of relay detection circuit, relay control electricity
Road is connected between trigger device and the signal input part of relay, for controlling the switch motion of relay, relay control
Circuit is connected with logic analysis module two-way signaling, and actuating of relay detection circuit is then connected with relay working end, is used for
The on off state of relay is detected, actuating of relay detection circuit is unidirectionally connected with logic analysis module；
AC Frequency Analysis circuit is analyzed the phase information of AC power by AC power sample circuit and is sent to
To logic analysis module, the switching-state information of actuating of relay detection circuit detection relay is simultaneously sent to logic analysis mould
Block, the trigger signal that trigger device is sent are sent to logic analysis module, logic point by actuating of relay control circuit first
Analysis module by the signal and the switching-state information of phase information and relay analyzed and compared with, then pass through the actuating of relay
Control circuit carries out re-optimization to closed and disconnected time of relay, its criterion optimized be ensure relay closure and
When turn-off time is the phase zero crossing of AC power, magnitude of voltage is minimum at this time, and current value is also minimum, and surge voltage electric current is also most
It is small.
In some embodiments, logic analysis module by actuating of relay control circuit intercept trigger signal and by its
It is detained to nearest zero point phase time.
Further, logic analysis module is to the optimization process of the closed and disconnected time of relay：
D, each zero crossing time of AC power is recorded；
E, compared with time of trigger signal and zero crossing time will be received respectively, so as to draw relay respectively
Time delay T0 and turn-off delay time T1 is closed, and closure time delay T0 and turn-off delay time T1 is preserved；
F, when receiving trigger signal again, the on off state of relay is detected by actuating of relay detection circuit,
And one of following operation is performed according to the selection of the on off state of relay：
If c1, relay is off before trigger signal is sent, logic analysis module controls relay
One time of circuit output and the closure identical closure thermal compensation signal t0 of time delay T0, closure thermal compensation signal are and trigger signal
Identical high level signal or low level signal；
If c2, relay is in closure state before trigger signal is sent, logic analysis module controls relay
One time of the circuit output disconnection thermal compensation signal t1 identical with turn-off delay time T1, disconnecting thermal compensation signal is and trigger signal
Identical high level signal or low level signal.
In some embodiments, transactional analysis module further includes zero passage signal detection circuit and synchronizing signal produces electricity
Road, zero passage signal detection circuit are connected with AC power sample circuit, circuit for generating synchronous signals then respectively with zero cross signal
Detection circuit is connected with logic analysis module, for produce with by zero passage signal detection circuit collection Lai AC power mistake
The output signal of zero-signal synchronization simultaneously transmits the signal to logic analysis module.
In some embodiments, display module is further included, display module is made of display and display circuit, display
Device circuit is connected with logic analysis module and display respectively, for sending the analysis result of logic analysis module to display
Shield and shown by display screen.
In some embodiments, logic analysis module is also associated with a personal-machine Interface Control circuit, passes through man-machine boundary
Face control circuit can be inputted and set to each systematic parameter of logic analysis module.
In some embodiments, a straight-flow system power module, including AC-DC conversion circuits and DC-DC are further included
Digital-control circuit, AC-DC conversion circuits are connected with AC power, for the DC power supply needed for supply equipment, DC-DC numerical controls electricity
Lu Zeyu AC-DC conversion circuits are connected, for providing the direct current of various different voltages to meet various relays to direct current
The different requirement of supply voltage.
In some embodiments, DC-DC digital-control circuits pass through a DC power supply instruction circuit and logic analysis module
It is bi-directionally connected, logic analysis module obtains the letter of the output DC voltage of DC-DC digital-control circuits by DC power supply instruction circuit
Breath, and the magnitude of voltage of the output direct current by DC power supply instruction circuit adjusting DC-DC digital-control circuits.
In some embodiments, logic analysis module is also connected with output module, and output module is used for visualization
Or storable mode exports the various analysis data of logic analysis module.
In some embodiments, output module includes data storage device or acousto-optic hint circuit.
In some embodiments, output module further includes RF two-way communication circuits, and RF two-way communication circuits are used for wireless
The wireless collection of remote control and the analysis data of logic analysis module, and equipment network cooperate, and realize wireless automatic
The Function Extension of change.
Using the relay surge voltage current management system of above technical scheme, applied in the circuit of AC power,
By signal detection and analysis, make to switch in the zero point of alternating current in relay, switch on and off load, thus not only to negative
Carry provide surge voltage and electric current it is smaller, backward voltage caused by inductive circuit and clutter are minimum, but also do not influence and
The normal work of the electric appliances such as TV and Communication Equipment is not disturbed.The management system does not influence the service life of relay, to circuit
Design margin require it is relatively low, select the requirement of component also not high, it is easy to meet the design and use life requirements of circuit,
Design cost reduces, and is conducive to improve the competitiveness of product in market.
Brief description of the drawings
Fig. 1 is the relay surge voltage current management system circuit structure schematic diagram of one embodiment of the present invention
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 schematically shows a kind of a kind of relay surge voltage current management of embodiment according to the present invention
System.
As shown in the figure, the device includes a logic analysis module 1 and what is be connected with logic analysis module exchange point
Analyse modules A and relay control module B.
Wherein, transactional analysis modules A includes AC power sample circuit 2 and AC Frequency Analysis circuit 3.
AC power sample circuit 2 is connected with AC power, after carrying out isolated buck to AC power, then carries out
The sampling of alternating voltage and phase.
AC Frequency Analysis circuit 3 is connected with AC power sample circuit 2 and logic analysis module 1, is handed over for analyzing
The phase information in galvanic electricity source simultaneously sends it to logic analysis module 1.
Relay control module B includes actuating of relay control circuit 4 and actuating of relay detection circuit 5.
Control relay circuit 4 is connected between the signal input part of trigger device 7 and relay 6, for controlling relay
The switch motion of device 6.
Control relay circuit 4 is connected with 1 two-way signaling of logic analysis module.
Actuating of relay detection circuit 5 is then connected with 6 working end of relay, for detecting the on off state of relay 6.
Actuating of relay detection circuit 5 is unidirectionally connected with logic analysis module 1.
The basic operational process of the management system is：
AC Frequency Analysis circuit 3 is analyzed the phase information of AC power by AC power sample circuit 2 and is sent out
Send to logic analysis module 1.
Actuating of relay detection circuit 5 detects the switching-state information of relay 6 and sends to logic analysis module 1.
The trigger signal that trigger device 7 is sent is sent to logic analysis module by actuating of relay control circuit 4 first
1。
Logic analysis module 1 by the signal and the switching-state information of phase information and relay 6 analyzed and compared with,
Re-optimization is carried out to the closed and disconnected time of relay by actuating of relay control circuit 4 again.
The criterion of re-optimization be ensure relay 6 the closed and disconnected time be AC power phase zero crossing when,
Magnitude of voltage is minimum at this time, and current value is also minimum, and surge voltage electric current is also minimum.
Logic analysis module 1 is to intercept trigger signal by actuating of relay control circuit 4 and be detained to nearest
Zero point phase time.
Logic analysis module 1 is to the optimization process of the closed and disconnected time of relay 6：
A, each zero crossing time of AC power is recorded；
B, compared with time of trigger signal and zero crossing time will be received respectively, so as to draw relay 6 respectively
Closure time delay T0 and turn-off delay time T1, and by closure time delay T0 and turn-off delay time T1 preserve；
C, when receiving trigger signal again, the switch shape of relay 6 is detected by actuating of relay detection circuit 5
State, and one of following operation is performed according to the selection of the on off state of relay 6：
If c1, relay 6 is off before trigger signal is sent, logic analysis module 1 is to relay control
Circuit 4 processed exports the time closure thermal compensation signal t0 identical with closing time delay T0, and closure thermal compensation signal is and triggering
Signal identical high level signal or low level signal；
If c2, relay 6 is in closure state before trigger signal is sent, logic analysis module 1 is to relay control
Circuit 4 processed exports the time disconnection thermal compensation signal t1 identical with turn-off delay time T1, disconnects thermal compensation signal and is and triggering
Signal identical high level signal or low level signal.
In the present embodiment, transactional analysis modules A further includes zero passage signal detection circuit 8 and circuit for generating synchronous signals 8.
Zero passage signal detection circuit 8 is connected with AC power sample circuit 2.
Circuit for generating synchronous signals 9 is then connected with zero passage signal detection circuit 8 and logic analysis module 1 respectively, is used for
Produce with by zero passage signal detection circuit 8 collect Lai AC power the synchronous output signal of zero cross signal and the signal is sent out
Send to logic analysis module 1.
In the present embodiment, display module D is further included.
Display module D is made of display 11 and display circuit 10.
Display circuit 10 is connected with logic analysis module 1 and display 11 respectively, for by logic analysis module 1
Analysis result sends to display screen 11 and is shown by display screen 11.
Closure time delay T0 and turn-off delay time T1 can directly display out by display screen 11.
Logic analysis module 1 is also associated with a personal-machine Interface Control circuit 12, passes through 12 energy of human-computer interface control circuit
It is enough that 1 each systematic parameter of logic analysis module is inputted and set.
Such as can be to the time of closure thermal compensation signal t0 and disconnection thermal compensation signal t1 by human-computer interface control circuit 12
It is manually entered with level.
In the present embodiment, a straight-flow system power module E, including AC-DC conversion circuits 13 and DC-DC numbers are further included
Control circuit 14.
Wherein, AC-DC conversion circuits 13 are connected with AC power, for the DC power supply needed for supply equipment.
DC-DC digital-control circuits 14 are then connected with AC-DC conversion circuits 13, for providing the direct current of various different voltages
To meet the requirement different to direct current power source voltage of various relays.
DC-DC digital-control circuits 14 are also bi-directionally connected by a DC power supply instruction circuit 15 with logic analysis module 1.
Logic analysis module 1 obtains the output DC voltage of DC-DC digital-control circuits 14 by DC power supply instruction circuit 15
Information, and pass through the magnitude of voltage that DC power supply instruction circuit 15 adjusts the output direct current of DC-DC digital-control circuits 14.
Logic analysis module 1 is also connected with output module F.
Output module F is used for the various analysis data that logic analysis module 1 is exported in a manner of visualizing or is storable.
Output module F generally comprises data storage device 17 or acousto-optic hint circuit 16.
In the present embodiment, output module further includes RF two-way communication circuits 18.
RF two-way communication circuits 18 are used for the wireless collection of the analysis data of Wireless remote control and logic analysis module 1,
And equipment network cooperates, the Function Extension of wireless automatic is realized.
Using the relay surge voltage current management system of above technical scheme, applied in the circuit of AC power,
By signal detection and analysis, make to switch in the zero point of alternating current in relay, switch on and off load, thus not only to negative
Carry provide surge voltage and electric current it is smaller, backward voltage caused by inductive circuit and clutter are minimum, but also do not influence and
The normal work of the electric appliances such as TV and Communication Equipment is not disturbed.The management system does not influence the service life of relay, to circuit
Design margin require it is relatively low, select the requirement of component also not high, it is easy to meet the design and use life requirements of circuit,
Design cost reduces, and is conducive to improve the competitiveness of product in market.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (11)
1. a kind of relay surge voltage current management system, it is characterised in that including a logic analysis module and with patrolling
Transactional analysis module and relay control module that analysis module is connected are collected,
Wherein,
Transactional analysis module includes AC power sample circuit and AC Frequency Analysis circuit, and AC power sample circuit is with exchanging
Power supply is connected, and after carrying out isolated buck to AC power, then carries out the sampling of alternating voltage and phase, a-c cycle point
Analysis circuit be connected with AC power sample circuit and logic analysis module, for analyze AC power phase information and by its
Send to logic analysis module；
Relay control module includes actuating of relay control circuit and actuating of relay detection circuit, and control relay circuit connects
It is connected between trigger device and the signal input part of relay, for controlling the switch motion of relay, control relay circuit
It is connected with logic analysis module two-way signaling, actuating of relay detection circuit is then connected with relay working end, for detecting
The on off state of relay, actuating of relay detection circuit are unidirectionally connected with logic analysis module；
AC Frequency Analysis circuit is analyzed the phase information of AC power and is sent it to and patrolled by AC power sample circuit
Analysis module is collected, the switching-state information of actuating of relay detection circuit detection relay simultaneously sends to logic analysis module, touches
The trigger signal that transmitting apparatus is sent is sent to logic analysis module, logic analysis module by actuating of relay control circuit first
By the signal and the switching-state information of phase information and relay analyzed and compared with, then pass through actuating of relay control electricity
Road carries out re-optimization to the closed and disconnected time of relay, its criterion optimized is when ensureing the closed and disconnected of relay
Between be AC power phase zero crossing when, magnitude of voltage is minimum at this time, and current value is also minimum, and surge voltage electric current is also minimum.
2. relay surge voltage current management system according to claim 1, it is characterised in that logic analysis module leads to
Cross relay control circuit interception trigger signal and be detained to nearest zero point phase time.
3. relay surge voltage current management system according to claim 2, it is characterised in that logic analysis module pair
The optimization process of the closed and disconnected time of relay is：
A, each zero crossing time of AC power is recorded；
B, compared with time of trigger signal and zero crossing time will be received respectively, so as to draw the closure of relay respectively
Time delay T0 and turn-off delay time T1, and closure time delay T0 and turn-off delay time T1 is preserved；
C, when receiving trigger signal again, the on off state of relay, and root are detected by actuating of relay detection circuit
One of following operation is performed according to the on off state selection of relay：
If c1, relay is off before trigger signal is sent, logic analysis module is to control relay circuit
It with closing the identical closure thermal compensation signal t0 of time delay T0, closure thermal compensation signal is identical with trigger signal to export a time
High level signal or low level signal；
If c2, relay is in closure state before trigger signal is sent, logic analysis module is to control relay circuit
The time disconnection thermal compensation signal t1 identical with turn-off delay time T1 is exported, it is identical with trigger signal to disconnect thermal compensation signal
High level signal or low level signal.
4. relay surge voltage current management system according to claim 1, it is characterised in that transactional analysis module is also
Including zero passage signal detection circuit and circuit for generating synchronous signals, zero passage signal detection circuit is connected with AC power sample circuit
Connect, circuit for generating synchronous signals is then connected with zero passage signal detection circuit and logic analysis module respectively, for produce with by
Zero passage signal detection circuit collects the output signal of the zero cross signal synchronization for the AC power come and transmits the signal to logic
Analysis module.
5. relay surge voltage current management system according to claim 1, it is characterised in that further include display mould
Block, display module are made of display and display circuit, and display circuit is connected with logic analysis module and display respectively
Connect, for sending the analysis result of logic analysis module to display screen and being shown by display screen.
6. relay surge voltage current management system according to claim 1, it is characterised in that logic analysis module is also
A personal-machine Interface Control circuit is connected with, can be to each systematic parameter of logic analysis module by human-computer interface control circuit
Inputted and set.
7. relay surge voltage current management system according to claim 1, it is characterised in that further include a direct current
System power supply module, including AC-DC conversion circuits and DC-DC digital-control circuits, AC-DC conversion circuits are connected with AC power,
For the DC power supply needed for supply equipment, DC-DC digital-control circuits are then connected with AC-DC conversion circuits, various for providing
The direct current of different voltages is to meet the requirement different to direct current power source voltage of various relays.
8. relay surge voltage current management system according to claim 7, it is characterised in that DC-DC digital-control circuits
It is bi-directionally connected by a DC power supply instruction circuit with logic analysis module, logic analysis module instructs electricity by DC power supply
Road obtains the information of the output DC voltage of DC-DC digital-control circuits, and adjusts DC-DC numerical controls electricity by DC power supply instruction circuit
The magnitude of voltage of the output direct current on road.
9. relay surge voltage current management system according to claim 1, it is characterised in that logic analysis module is also
It is connected with output module, output module is used for various points that logic analysis module is exported in a manner of visualizing or is storable
Analyse data.
10. relay surge voltage current management system according to claim 9, it is characterised in that output module includes
Data storage device or acousto-optic hint circuit.
11. relay surge voltage current management system according to claim 9, it is characterised in that output module also wraps
RF two-way communication circuits are included, RF two-way communication circuits are used for the wireless of the analysis data of Wireless remote control and logic analysis module
Collection, and equipment network cooperate, and realize the Function Extension of wireless automatic.
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| CN201711456776.4A CN107976573A (en) | 2017-12-27 | 2017-12-27 | A kind of relay surge voltage current management system |
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| CN201711456776.4A CN107976573A (en) | 2017-12-27 | 2017-12-27 | A kind of relay surge voltage current management system |
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Cited By (3)
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| CN110412453A (en) * | 2019-07-05 | 2019-11-05 | 宁波智轩物联网科技有限公司 | A kind of intelligence is spaced apart the automatic calibrating method and system of actuation zero point |
| CN110459433A (en) * | 2019-08-27 | 2019-11-15 | 九阳股份有限公司 | A kind of relay zero-crossing control method and cooking apparatus |
| CN111239469A (en) * | 2018-11-28 | 2020-06-05 | 安徽美芝精密制造有限公司 | Impact signal detection circuit and alternating current power supply equipment |
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| CN110412453A (en) * | 2019-07-05 | 2019-11-05 | 宁波智轩物联网科技有限公司 | A kind of intelligence is spaced apart the automatic calibrating method and system of actuation zero point |
| CN110412453B (en) * | 2019-07-05 | 2022-06-10 | 宁波智轩物联网科技有限公司 | Automatic calibration method and system for intelligent air switch suction zero point |
| CN110459433A (en) * | 2019-08-27 | 2019-11-15 | 九阳股份有限公司 | A kind of relay zero-crossing control method and cooking apparatus |
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