CN106094958B - A kind of adaptive arc means of relay controlling of reducing internal heat applied on voltage-stablizer - Google Patents
A kind of adaptive arc means of relay controlling of reducing internal heat applied on voltage-stablizer Download PDFInfo
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- CN106094958B CN106094958B CN201610410534.0A CN201610410534A CN106094958B CN 106094958 B CN106094958 B CN 106094958B CN 201610410534 A CN201610410534 A CN 201610410534A CN 106094958 B CN106094958 B CN 106094958B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
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Abstract
The present invention relates to AC voltage regulator technology, especially a kind of adaptive arc means of relay controlling of reducing internal heat applied on voltage-stablizer.It comprising input voltage, output voltage are carried out in real time zero passage detection, to disconnection actuation time of each relay respectively timing, enter the steps such as line delay, regulation control to relay control module output signal, its purpose is to can accurately catch the exchange electrical zero moment to design one kind, accurately calculate different relay opening times, in the course of the work, make the contact of different relays in the time instant of disconnection, be exactly in the adaptive arc means of relay controlling of reducing internal heat at the zero crossing moment of alternating current.Compared with prior art, more accurate is judged to input and output voltage dead-center position；AC voltage regulator is eliminated during band carries voltage stabilizing, relay suits the fiery arc phenomenon of generation, and improve the control effect of relay, improve the precision of voltage regulation and voltage-stablizer life-span.
Description
Technical field
The present invention relates to AC voltage regulator technology, especially a kind of adaptive arc relay control of reducing internal heat applied on voltage-stablizer
Method processed.
Background technology
At present, known contactless voltage-stabilized power supply includes multi-tap transformer, relay control module, relay group and steady
Voltage source main control module, AC-input voltage is typically between 90V-280V, and voltage stabilizing output voltage is in 220V ± 10%V, exchange
Input voltage range is wider, therefore in the voltage stabilizing course of work, relay control module will change according to input and output voltage ratio,
Switching relay group, selects the input tap of transformer difference and output tap, the coil ratio of transformer is met defeated in time
Enter output voltage than change, it is ensured that power regulator being capable of normal work.But relay switching is that process is carried out in band is carried
Switching is, it is necessary to undergo mode of operation of the relay with high current, and this switching control has the following disadvantages：
Because relay is connecting moment, the high current of moment can be produced in relay contacts point, so as to produce fiery arc.Fire
Arc can produce potential safety hazard, and can greatly reduce the working life of voltage-stablizer.After testing, certain a relay is in fiery arc situation
Lower work, the life-span only has 2900 or so times.
In view of the above-mentioned problems, traditional arc mode of reducing internal heat is using traditional zero point detection technique and traditional relay timing skill
Art, i.e. detection exchange electrical zero position, then shift to an earlier date a period of time, the time point for allowing relay to close or open in zero crossings
Close to zero point.Although traditional arc mode of reducing internal heat can reduce the instantaneous large-current of contact point generation, it is to avoid the generation of fiery arc.But
It is that existing zero point detection technique also has many problems：First, it is impossible to the accurate position for catching zero point, zero point can only be estimated
Approximate location；Secondly, it is impossible to the action terminal Approximate Zeros of accurate control relay, delay is estimated for one but to relay
Value, makes terminal substantially adjacent to zero point；Then, the pull up time of different model is different, and with two relays of money
Also there is difference device actuation time, and the opening and closing time of relay is different, and prior art can only substantially estimate certain a relay
The actuation time of device, it is impossible to accomplish accurate control, also add many troubles to production and buying；In addition, the control of relay
There is also problem in precision and control logic, voltage regulation result is often led to undesirable.
The content of the invention
The purpose of the present invention is a kind of adaptive reduce internal heat arc means of relay controlling, the control applied on voltage-stablizer of design
Method processed can accurately catch the exchange electrical zero moment, the different relay opening and closing times accurately be calculated, in the course of work
In, make the contact of different relays in the time instant of disconnection, be exactly in the zero crossing moment of alternating current.
To achieve the above object, the present invention uses following technical solution：It is a kind of applied on voltage-stablizer from
Adaptation is reduced internal heat arc means of relay controlling, it is characterised in that it includes unidirectional optocoupler zero point detection module, time delayses device group, after
Electrical control module, relay group, time counter group, two-way optocoupler zero point detection module and time comparator group, when described
Between delayer group, the time counter group, the time comparator group and the relay group correspond and configure, they are pressed
Relay is controlled according to following steps：
(1) the unidirectional optocoupler zero point detection module carries out zero passage detection to input voltage in real time, and zero point is detected
Signal issues the time delayses device group, and relay control is issued after the preset delay time T0 delays of the time delayses device group
Molding block；
(2) when the relay control module needs to select corresponding relay to carry out according to input and output voltage than change
During switching, select, receive the output signal with the one-to-one time delayses device group corresponding units of relay as control signal,
Selection, startup are used as time regulator with the one-to-one time counter group corresponding units of relay；
(3) the two-way optocoupler zero point detection module carries out zero passage detection to output voltage in real time, and zero point is detected
Signal issues the time counter group corresponding units, allows the time counter group corresponding units to record the time this moment, as
Physics turn-off time T1 is sent to the time by the physics turn-off time T1 of relay, the time counter group corresponding units
Comparator group corresponding units；
(4) the time comparator group corresponding units are carried out to physics turn-off time T1 and the theoretical zero-crossing timing of output voltage
Compare, and according to the time error between them, adjust the preset delay time T0 of the time delayses device group corresponding units, make
T0=T/2-T1, wherein T are the power supply wave shape cycle；
(5) input and output voltage, than the control instruction of change, moves in circles next time for the relay control module wait,
Progressively adjust, make just to overlap at the time of relay thorough turn-off time actual with output voltage zero passage, eliminate fiery arc.
The present invention has the advantage that compared with prior art：More accurate is judged to input and output voltage dead-center position
Really；, can be with the performance parameter of meter relay during relay works；AC voltage regulator can be eliminated and carry voltage stabilizing in band
During, relay suits the fiery arc phenomenon of generation, and improves the control effect of relay, improves the precision of voltage regulation and voltage stabilizing
The device life-span.
Brief description of the drawings
Fig. 1 is the present embodiment control method block diagram.
Fig. 2 is unidirectional optocoupler zero point detection module circuit diagram.
Fig. 3 is two-way optocoupler zero point detection module circuit diagram.
Fig. 4 is unidirectional optocoupler zero point detection module input voltage waveform figure.
Fig. 5 is that unidirectional optocoupler zero point detection module output zero point catches oscillogram.
Fig. 6 is two-way optocoupler zero point detection module input voltage waveform figure.
Fig. 7 is that two-way optocoupler zero point detection module output zero point catches oscillogram.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the present embodiment includes unidirectional optocoupler zero point detection module, time delayses device group, Control mould
Block, relay group, time counter group, two-way optocoupler zero point detection module and time comparator group, the time delayses device group,
The time counter group, the time comparator group are corresponded with the relay group and configured, and they are according to following steps
Relay is controlled：
(1) as shown in Fig. 2 the unidirectional optocoupler zero point detection module carries out zero passage inspection to voltage-stablizer input voltage in real time
Survey, the unidirectional optocoupler zero point detection module carries out optocoupler to voltage-stablizer input voltage signal L-in (oscillogram is as shown in Figure 4)
Isolation processing, when voltage-stablizer input voltage is in positive half-wave, the unidirectional optocoupler zero point detection module output end output low level,
When voltage-stablizer input voltage is in negative half-wave, (oscillogram is such as the unidirectional optocoupler zero point detection module output end output high level
Shown in Fig. 5), the unidirectional optocoupler zero point detection module will detect the signal of jump in potential as zero point detection signal and issue institute
Time delayses device group is stated, relay control module is issued after the preset delay time T0 delays of the time delayses device group；
(2) when the relay control module needs to select corresponding relay to carry out according to input and output voltage than change
During switching, select, receive the output signal with the one-to-one time delayses device group corresponding units of relay as control signal,
Selection, startup are used as time regulator with the one-to-one time counter group corresponding units of relay；
(3) as shown in figure 3, the two-way optocoupler zero point detection module carries out zero passage inspection to stabilizer output voltage in real time
Survey, the two-way optocoupler zero point detection module carries out optocoupler to stabilizer output voltage signal L-out (oscillogram is as shown in Figure 6)
Isolation processing, when the two-way optocoupler zero point detection module has control source, the two-way optocoupler zero point detection module output
Low level, but at the stabilizer output voltage zero crossing moment, the two-way optocoupler zero point detection module output end produces sharp wave electricity
Press (oscillogram is as shown in Figure 7), the two-way optocoupler zero point detection module will detect sharp wave voltage signal as output voltage
The detection signal at zero crossing moment issues the time counter group corresponding units, allows the time counter group corresponding units to remember
Record time this moment, as the physics turn-off time T1 of relay, the time counter group corresponding units are by physics turn-off time
T1 is sent to the time comparator group corresponding units；
(4) the time comparator group corresponding units are to physics turn-off time T1 and the theoretical zero-crossing timing (T/ of output voltage
2-T0) it is compared, and according to the time error between them, adjusts the preset delay of the time counter group corresponding units
Time T0, it is the power supply wave shape cycle to make T0=T/2-T1, wherein T；
(5) input and output voltage, than the control instruction of change, moves in circles next time for the relay control module wait,
Progressively adjust, make just to overlap at the time of relay thorough turn-off time actual with output voltage zero passage, eliminate fiery arc.
Claims (1)
1. a kind of adaptive arc means of relay controlling of reducing internal heat applied on voltage-stablizer, it is characterised in that it includes unidirectional optocoupler
Zero point detection module, time delayses device group, relay control module, relay group, time counter group, two-way optocoupler zero point inspection
Survey module and time comparator group, the time delayses device group, the time counter group, the time comparator group with it is described
Relay group corresponds configuration, and they are controlled according to following steps to relay：
(1) the unidirectional optocoupler zero point detection module carries out zero passage detection to input voltage in real time, and zero point is detected into signal
The time delayses device group is issued, Control mould is issued after the preset delay time T0 delays of the time delayses device group
Block；
(2) when the relay control module needs to select corresponding relay to switch over according to input and output voltage than change
When, selection, reception and the output signal of the one-to-one time delayses device group corresponding units of relay are used as control signal, choosing
Select, start with the one-to-one time counter group corresponding units of relay as time regulator；
(3) the two-way optocoupler zero point detection module carries out zero passage detection to output voltage in real time, and zero point is detected into signal
The time counter group corresponding units are issued, allows the time counter group corresponding units to record the time this moment, is used as relay
Physics turn-off time T1 is sent to the time and compared by the physics turn-off time T1 of device, the time counter group corresponding units
Device group corresponding units；
(4) the time comparator group corresponding units compare physics turn-off time T1 and the theoretical zero-crossing timing of output voltage
Compared with, and according to the time error between them, adjust the preset delay time T0 of the time delayses device group corresponding units, make T0
=T/2-T1, wherein T are the power supply wave shape cycle；
(5) input and output voltage, than the control instruction of change, moves in circles next time for the relay control module wait, progressively
Adjustment, makes just to overlap at the time of relay thorough turn-off time actual with output voltage zero passage, elimination fire arc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610410534.0A CN106094958B (en) | 2016-06-07 | 2016-06-07 | A kind of adaptive arc means of relay controlling of reducing internal heat applied on voltage-stablizer |
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| CN201610410534.0A CN106094958B (en) | 2016-06-07 | 2016-06-07 | A kind of adaptive arc means of relay controlling of reducing internal heat applied on voltage-stablizer |
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| CN106094958B true CN106094958B (en) | 2017-09-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108987185A (en) * | 2018-07-23 | 2018-12-11 | 深圳市智维兴科技有限公司 | A kind of multi-channel DC relay conducting control technology |
| TWI702628B (en) * | 2019-01-11 | 2020-08-21 | 旺玖科技股份有限公司 | Switch device capable of automatically detecting and adjusting zero cross point |
| CN109994341B (en) * | 2019-03-29 | 2020-08-14 | 公牛集团股份有限公司 | Relay zero switch self-calibration method and system |
| CN113723009B (en) * | 2021-09-08 | 2022-06-03 | 浙江腾腾电气有限公司 | High-current switching flameless arc voltage stabilizer and working method thereof |
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| JP2010177164A (en) * | 2009-02-02 | 2010-08-12 | Toyota Motor Corp | Extinguishing device |
| CN101789334A (en) * | 2010-03-02 | 2010-07-28 | 罗静 | Relay zero crossing disconnection arc extinguishing method |
| KR20100039318A (en) * | 2010-03-05 | 2010-04-15 | 허진 | An arc remover and a hybrid switch |
| CN205016421U (en) * | 2015-08-12 | 2016-02-03 | 广东美的生活电器制造有限公司 | Relay switch drive arrangement and domestic appliance |
| CN105261523B (en) * | 2015-10-29 | 2018-05-04 | 厦门市智联信通物联网科技有限公司 | Relay zero-crossing on and off control method and control system |
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