CN106099910A - Three-phase AC power switching circuit and driving method, power transfer device - Google Patents
Three-phase AC power switching circuit and driving method, power transfer device Download PDFInfo
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- CN106099910A CN106099910A CN201610439827.1A CN201610439827A CN106099910A CN 106099910 A CN106099910 A CN 106099910A CN 201610439827 A CN201610439827 A CN 201610439827A CN 106099910 A CN106099910 A CN 106099910A
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- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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Abstract
The embodiment of the invention discloses a kind of three-phase AC power switching circuit and driving method, power transfer device.This circuit includes the first cross streams power supply electronic circuit, the second cross streams power supply electronic circuit and third phase alternating current power supply electronic circuit；First cross streams power supply electronic circuit connects neutral point, control signal input and the first outfan respectively, second cross streams power supply electronic circuit connects neutral point, control signal input and the second outfan respectively, and third phase alternating current power supply electronic circuit connects neutral point, control signal input and the 3rd outfan respectively；First cross streams power supply electronic circuit, the second cross streams power supply electronic circuit and third phase alternating current power supply electronic circuit all include at least two power output unit, and at least two power output unit is for the voltage of optionally output difference electric pressure under the control of control signal input institute incoming control signal.The present invention can be while the seamless switching realizing power supply, the optionally voltage of the different electric pressure of output.
Description
Technical field
The present embodiments relate to low-voltage ride-through power source device to test technical field, be specifically related to a kind of three-phase alternating current
Source switching circuit and driving method, power transfer device.
Background technology
Low voltage ride through device for converter starts boosting when line voltage reduces, and the low-voltage of input is raised
It it is inverter supply after rated value.The change range of input voltage of low voltage ride through device work is relatively big, meeting under extreme case
The 20% of rated voltage is dropped into by rated voltage.During to low voltage ride through device functional test, input voltage needs simulating grid
Voltage Drop and the variation tendency of rise.Mostly the existing power supply for testing low voltage ride through device, be with pressure regulator or can
Programming power supply.Owing to voltage is the lowest, output is constant, input current can be caused relatively big, again plus in low voltage ride through device
The many employings in portion BOOST circuit, can make the very big increase input current peak value further of current harmonics, produce the biggest to test power supply
Rush of current, is even damaged, and the pressure regulator of general capacity or power supply cannot drop to rated voltage 20% by simulating grid voltage
Operating mode.Thus, it is necessary to the effective test supply unit producing many voltage gradations of research.
The working method of many power supplys seamless switching device is: input is connected on the power supply of different electric pressure, different electricity
The power supply of pressure grade can be provided by the transformator of different no-load voltage ratios, and outfan is connected on the input of low voltage ride through device；Pass through
Internal switching device switching is controlled, difference voltage is input in low voltage ride through device.Many power supplys seamless switching device
Basic demand be: handoff procedure is wanted continuously without power-off and without short circuit, i.e. voltage waveform is wanted continuously, it is impossible to occur that power supply is interrupted now
As, can not short circuit between different brackets power supply；Switch speed is fast, generally Millisecond；Inside contactor in switching process not
Electric arc can be produced；By low-tension supply switch to high voltage power supply time, output electric current can not occur impact.
During realizing the embodiment of the present invention, inventor finds that the document switched about switching in prior art is fitted more
Power supply for same electric pressure switches.
Summary of the invention
The problem that it is an object of the invention to solve the power supply switching that prior art is only applicable to same electric pressure.
The present invention proposes a kind of three-phase AC power switching circuit, including: the first cross streams power supply electronic circuit, the second phase
Alternating current power supply electronic circuit and third phase alternating current power supply electronic circuit；
Described first cross streams power supply electronic circuit connects neutral point, control signal input and the first outfan, institute respectively
State the second cross streams power supply electronic circuit and connect neutral point, described control signal input and the second outfan respectively, the described 3rd
Cross streams power supply electronic circuit connects neutral point, described control signal input and the 3rd outfan respectively；
Described first cross streams power supply electronic circuit, described second cross streams power supply electronic circuit and described third phase alternating current power supply
Electronic circuit all includes at least two power output unit, and described at least two power output unit is for defeated in described control signal
Enter to hold the voltage of the optionally different electric pressure of output under the control of institute's incoming control signal；
Wherein, described control signal is the external control unit outside operational factor according to described at least two power output unit
Generate.
Preferably, described power output unit includes: power supply, the first IGCT, the second IGCT and catalyst；
Described power supply connects described neutral point and one end of described first IGCT respectively, another of described first IGCT
End connects one end of described second IGCT；
The other end of described second IGCT connects outfan, and described catalyst connects described power supply and described output respectively
End.
Described first IGCT, described second IGCT and described catalyst are all connected with described control signal input, use
Export the output of described power supply to described outfan under the control at described control signal input institute incoming control signal, and
Perform switching action.
Preferably, described power output unit also includes: buffer resistance；
Described buffer resistance connects described first IGCT and described outfan respectively.
The invention provides a kind of power transfer device, including: control unit and such as above-mentioned three-phase alternating-current supply switching electricity
Road；
Described at least two power output unit includes the first power output unit and second source output unit, described
One power output unit and described second source output unit connect neutral point and outfan respectively；
Described control unit connects described control signal input, is used for detecting described first power control unit and described
The terminal voltage signal of the first IGCT and the current signal of load-side in second source control unit, and believe according to described terminal voltage
Number and described current signal generate control signal, by described control signal input by described control signal input to the most described the
One power output unit and described second source output unit, so that the output of outfan is by the output of the first power output unit
Switch to the output of described second source output unit.
Preferably, described control unit includes: detection sub-unit, controller and drive circuit；
Described detection electronic circuit, is used for detecting in described first power control unit and described second source control unit
The terminal voltage signal of one IGCT and the current signal of load-side, and described terminal voltage signal and described current signal are sent extremely
Controller；
Described controller, for generating control signal according to described terminal voltage signal and described current signal, and by described
Control signal sends to described drive circuit；
Described drive circuit, for generating switch controlling signal and drive control signal according to described control signal, described
Switch controlling signal for controlling described first power output unit and the catalyst of described second source output unit, described in drive
Dynamic control signal is for driving described first power output unit and the first IGCT of described second source output unit and the
Two IGCTs.
The invention allows for a kind of method driving foregoing circuit, including:
When receiving switching command, trigger the first IGCT and second IGCT of the first power output unit；
The catalyst controlling the first power output unit performs disconnection action, and stops triggering described first IGCT and institute
State the second IGCT；
When the terminal voltage signal zero crossing of the 3rd IGCT of second source control unit being detected, controller is by driving
Described in galvanic electricity road direction, the 3rd IGCT sends drive control signal, to turn on described 3rd IGCT, so that electric with described second
The power supply that source output unit connects outwards is powered by outfan, completes switching action.
Preferably, when receiving switching command, trigger the first IGCT and the second brilliant lock of the first power output unit
Before the step of pipe, the method also includes:
When the terminal voltage zero crossing of described first IGCT being detected, controller is brilliant to described first by drive circuit
Brake tube sends drive control signal, to turn on described first IGCT so that the electricity being connected with described first power output unit
Source is outwards powered by outfan；
Guan Bi control signal is sent, so that described catalyst performs combined floodgate to the catalyst of described first power output unit
Action, and after feed motion completes, stop triggering described first IGCT, to complete to start power supply action.
Preferably, the catalyst of described control the first power output unit performs disconnection action, and stops triggering described the
The step of one IGCT and described second IGCT specifically includes:
After performing the deferred action of Preset Time, the catalyst controlling the first power output unit performs disconnection action；And
After the deferred action performing Preset Time, stop triggering described first IGCT and described second IGCT.
Preferably, the described catalyst to described first power output unit sends Guan Bi control signal so that described in connect
Tentaculum performs feed motion, and after feed motion completes, the step stopping triggering described first IGCT specifically includes:
After performing the deferred action of Preset Time, send Guan Bi to the catalyst of described first power output unit and control letter
Number, so that described catalyst performs feed motion, and after feed motion completes and perform the deferred action of Preset Time, stop
Trigger described first IGCT.
As shown from the above technical solution, the three-phase AC power switching circuit that the embodiment of the present invention proposes can realize power supply
Seamless switching while, the optionally voltage of the different electric pressure of output.
Accompanying drawing explanation
By being more clearly understood from the features and advantages of the present invention with reference to accompanying drawing, accompanying drawing is schematic and should not manage
Solve as the present invention is carried out any restriction, in the accompanying drawings:
Fig. 1 shows the schematic diagram of a kind of three-phase AC power switching circuit that one embodiment of the invention provides；
Fig. 2 is the structural representation of the power supply of different electric pressures in a kind of three-phase AC power switching circuit shown in Fig. 1
Figure；
Fig. 3 shows the schematic flow sheet driving Fig. 1 to provide a kind of three-phase AC power switching circuit method；
Fig. 4 shows the structural representation of control unit in a kind of power transfer device that one embodiment of the invention provides.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
Fig. 1 shows the schematic diagram of the three-phase AC power switching circuit that one embodiment of the invention provides, and sees Fig. 1, should
Three-phase AC power switching circuit, including: first cross streams power supply electronic circuit the 100, second cross streams power supply electronic circuit 200 and
Three-phase alternating-current supply electronic circuit 300；
Described first cross streams power supply electronic circuit 100 connects neutral point N, control signal input (not shown) respectively
With the first outfan, described second cross streams power supply electronic circuit connects neutral point, described control signal input and second respectively
Outfan, described third phase alternating current power supply electronic circuit connects neutral point, described control signal input and the 3rd outfan respectively；
Seeing Fig. 1 to understand, the first outfan, the second outfan and the 3rd outfan are respectively low voltage ride through device from upper
Three ports being sequentially connected with under to；
Described first cross streams power supply electronic circuit 100, described second cross streams power supply electronic circuit 200 and described third phase are handed over
Stream power supply electronic circuit 300 all includes at least two power output unit, and described at least two power output unit is for described
The voltage of optionally output difference electric pressure under the control of control signal input institute incoming control signal；
Wherein, described control signal is the external control unit outside operational factor according to described at least two power output unit
Generate.
See Fig. 1 to understand, the first cross streams power supply electronic circuit 100, described second cross streams power supply electronic circuit 200 and described
The internal structure of third phase alternating current power supply electronic circuit 300 is identical, all includes n power output unit, the most all intersects with first
Stream power supply electronic circuit 100 illustrates；
The three-phase AC power switching circuit that the present embodiment provides can select while the seamless switching realizing power supply
Property the different electric pressure of ground output voltage.
In the present embodiment, described power output unit includes: power supply, the first IGCT, the second IGCT and catalyst；
Described power supply connects described neutral point and one end of described first IGCT respectively, another of described first IGCT
End connects one end of described second IGCT；
The other end of described second IGCT connects outfan, and described catalyst connects described power supply and described output respectively
End.
Described first IGCT, described second IGCT and described catalyst are all connected with described control signal input, use
Export the output of described power supply to described outfan under the control at described control signal input institute incoming control signal, and
Perform switching action.
Seeing Fig. 1 to understand, have n power output unit in the first cross streams power supply electronic circuit 100, the output of each power supply is single
Unit all includes a power supply, two IGCTs, a catalyst；Such as first power output unit includes: power supply A1, first
IGCT SCR11, the second IGCT SCR12 and catalyst KM11；
The electric pressure of each power supply is not quite similar, so that under the control of switching device, the different voltage of selective output
The power supply of grade.
In the present embodiment, described power output unit also includes: buffer resistance；
Described buffer resistance connects described first IGCT and described outfan respectively.
It should be noted that owing to the addition of buffer resistance, therefore, this circuit is possible not only to realize the seamless of power supply and cuts
Change, it is to avoid catalyst produces electric arc in switching process, it is also possible to avoid the rush of current infringement to equipment.
Fig. 2 is the structural representation of the power supply of different electric pressures in a kind of three-phase AC power switching circuit shown in Fig. 1
Figure, sees Fig. 2, and the present embodiment is by the power supply of a different electric pressure of transformator output；
This device is secondary multitap three-phase star Y type transformator.Former limit connects three-phase power grid voltage, and secondary connects switching
Device.Different taps in secondary three-phase voltage have different grades of voltage, and switching device is cut between different taps
Change, it is achieved the change of supply voltage grade；
It will be appreciated that number of taps can as required depending on, be not defined.
Wherein, the power supply A1-An in tap A1-An corresponding diagram 1, the power supply B1-Bn in tap B1-Bn corresponding diagram 1, tap
Power supply C1-Cn, N1 and N2 in C1-Cn corresponding diagram 1 is respectively former avris and the neutral point of secondary side.
Fig. 3 shows the schematic flow sheet driving Fig. 1 to provide a kind of three-phase AC power switching circuit method, referring to
The operation principle of this circuit is described in detail by Fig. 3:
When receiving switching command, trigger the first IGCT and second IGCT of the first power output unit；
The catalyst controlling the first power output unit performs disconnection action, and stops triggering described first IGCT and institute
State the second IGCT；
When the terminal voltage signal zero crossing of the 3rd IGCT of second source control unit being detected, controller is by driving
Described in galvanic electricity road direction, the 3rd IGCT sends drive control signal, to turn on described 3rd IGCT, so that electric with described second
The power supply that source output unit connects outwards is powered by outfan, completes switching action.
In the present embodiment, when receiving switching command, trigger first IGCT and second of the first power output unit
Before the step of IGCT, the method also includes:
When the terminal voltage zero crossing of described first IGCT being detected, controller is brilliant to described first by drive circuit
Brake tube sends drive control signal, to turn on described first IGCT so that the electricity being connected with described first power output unit
Source is outwards powered by outfan；
Guan Bi control signal is sent, so that described catalyst performs combined floodgate to the catalyst of described first power output unit
Action, and after feed motion completes, stop triggering described first IGCT, to complete to start power supply action.
In the present embodiment, the catalyst of described control the first power output unit performs disconnection action, and stops triggering institute
The step stating the first IGCT and described second IGCT specifically includes:
After performing the deferred action of Preset Time, the catalyst controlling the first power output unit performs disconnection action；And
After the deferred action performing Preset Time, stop triggering described first IGCT and described second IGCT.
In the present embodiment, described transmission to the catalyst of described first power output unit closes control signal, so that institute
State catalyst and perform feed motion, and after feed motion completes, the step stopping triggering described first IGCT specifically includes:
After performing the deferred action of Preset Time, send Guan Bi to the catalyst of described first power output unit and control letter
Number, so that described catalyst performs feed motion, and after feed motion completes and perform the deferred action of Preset Time, stop
Trigger described first IGCT
For method embodiment, in order to be briefly described, therefore it is all expressed as a series of combination of actions, but ability
Field technique personnel should know, embodiment of the present invention is not limited by described sequence of movement, because according to the present invention
Embodiment, some step can use other orders or carry out simultaneously.Secondly, those skilled in the art also should know,
Embodiment described in this description belongs to preferred implementation, involved action embodiment party the most of the present invention
Necessary to formula.
Below with delay time as 1s, the first cross streams power supply electronic circuit 100 is switched to the worked of A2 by power supply A1
It is described in detail as a example by journey:
After power transfer device powers on, controller enters and initializes.Detecting between IGCT SCR11 anode and negative electrode
During voltage difference zero crossing, controller sends out triggering pulse, power supply A1 after IGCT SCR11 conducting through overdrive circuit to IGCT
Starting to externally fed, in order to shorten the working time of IGCT to reduce loss, after 1S, controller is sent out to catalyst KM11
Combined floodgate level, after catalyst closes a floodgate, stops triggering IGCT SCR11, and equipment just completes starting up and powers.When controller receives
When being switched to the instruction of power supply A2 by power supply A1, directly turn off for avoiding contact with device KM11 and form electric arc, first to IGCT
SCR11 and SCR12 sends out triggering pulse, the moment of catalyst separating brake, and IGCT undertakes load current.Triggering IGCT SCR11
Time, supply voltage is constant, it is not necessary to putting into buffer resistance, before catalyst separating brake, IGCT SCR12 to be triggered is by buffer resistance
Short circuit.After catalyst disconnects, then stopping triggering SCR11 and SCR12, two IGCTs can turn off naturally when current zero-crossing point.
When SCR11 and SCR12 reliable turn-off and detect that SCR21 anode and cathode voltage reach certain value, trigger SCR21.Now
Power supply A2 is through buffer resistance R21 to externally fed, and close after 1S catalyst KM21, and current switching, to catalyst, now stops
Trigger IGCT.
When triggering SCR21, supply voltage grade will change, for eliminating by low-voltage in high voltage handoff procedure
The rush of current occurred, buffer resistance to be put into, the most do not trigger IGCT SCR22, after SCR21 turns on, timing closing connects
Tentaculum KM21, power supply handoff procedure terminates.
It addition, homophase other switching switch element between switching and other mutually in switch switch element switch operating mistake
Cheng Xiangtong and independent, described process is identical.
Fig. 4 shows the structural representation of control unit in the power transfer device that one embodiment of the invention provides, and sees
Fig. 4, this power transfer device, including: control unit and three-phase AC power switching circuit described above；
Described at least two power output unit includes the first power output unit and second source output unit, described
One power output unit and described second source output unit connect neutral point and outfan respectively；
Described control unit connects described control signal input, is used for detecting described first power control unit and described
The terminal voltage signal of the first IGCT and current signal in second source control unit, and according to described terminal voltage signal and described
Current signal generates control signal, by described control signal input, the input of described control signal is defeated to described first power supply
Go out unit and described second source output unit so that the output of outfan by the output switching of the first power output unit to institute
State the output of second source output unit.
The power transfer device that the present embodiment provides optionally can export while the seamless switching realizing power supply
The voltage of different electric pressures
In the present embodiment, control unit includes: detection sub-unit 42, controller 41 and drive circuit 43；Wherein,
Described detection electronic circuit 42, is used for detecting in described first power control unit and described second source control unit
The terminal voltage signal of the first IGCT and current signal, and described terminal voltage signal and described current signal are sent to controller
41；
Described controller 41, for generating control signal according to described terminal voltage signal and described current signal, and by institute
State control signal to send to described drive circuit 43；
Described drive circuit 43, for generating switch controlling signal and drive control signal, institute according to described control signal
State switch controlling signal for controlling described first power output unit and the catalyst of described second source output unit, described
Drive control signal for drive described first power output unit and described second source output unit the first IGCT and
Second IGCT.
The present invention will be described rather than limits the invention to it should be noted above-mentioned embodiment, and this
Skilled person can design replacement embodiment without departing from the scope of the appended claims.In claim
In, any reference marks that should not will be located between bracket is configured to limitations on claims.Word " comprises " and is not excluded for depositing
In the element not arranged in the claims or step.Word "a" or "an" before being positioned at element do not exclude the presence of multiple this
The element of sample.The present invention by means of including the hardware of some different elements and can come by means of properly programmed computer
Realize.If in the unit claim listing equipment for drying, several in these devices can be by same hardware
Item specifically embodies.Word first, second and third use do not indicate that any order.Can be by these word explanations
Title.
Although being described in conjunction with the accompanying embodiments of the present invention, but those skilled in the art can be without departing from this
Making various modifications and variations in the case of bright spirit and scope, such amendment and modification each fall within by claims
Within limited range.
Claims (9)
1. a three-phase AC power switching circuit, it is characterised in that including: the first cross streams power supply electronic circuit, second intersect
Stream power supply electronic circuit and third phase alternating current power supply electronic circuit；
Described first cross streams power supply electronic circuit connects neutral point, control signal input and the first outfan respectively, and described
Two-phase alternating current power supply electronic circuit connects neutral point, described control signal input and the second outfan respectively, and described third phase is handed over
Stream power supply electronic circuit connects neutral point, described control signal input and the 3rd outfan respectively；
Described first cross streams power supply electronic circuit, described second cross streams power supply electronic circuit and described third phase alternating current power supply electricity
Road all includes at least two power output unit, and described at least two power output unit is at described control signal input
The voltage of optionally output difference electric pressure under the control of institute's incoming control signal；
Wherein, described control signal is that external control unit outside generates according to the operational factor of described at least two power output unit
's.
Circuit the most according to claim 1, it is characterised in that described power output unit includes: power supply, the first brilliant lock
Pipe, the second IGCT and catalyst；
Described power supply connects described neutral point and one end of described first IGCT respectively, and the other end of described first IGCT is even
Connect one end of described second IGCT；
The other end of described second IGCT connects outfan, and described catalyst connects described power supply and described outfan respectively.
Described first IGCT, described second IGCT and described catalyst are all connected with described control signal input, are used for
Export the output of described power supply under the control of described control signal input institute incoming control signal to described outfan, and perform
Switching action.
Circuit the most according to claim 2, it is characterised in that described power output unit also includes: buffer resistance；
Described buffer resistance connects described first IGCT and described outfan respectively.
4. a power transfer device, it is characterised in that including: control unit and as described in any one of the claims 1-3
Three-phase AC power switching circuit；
Described at least two power output unit includes the first power output unit and second source output unit, described first electricity
Source output unit and described second source output unit connect neutral point and outfan respectively；
Described control unit connects described control signal input, is used for detecting described first power control unit and described second
The terminal voltage signal of the first IGCT and the current signal of load-side in power control unit, and according to described terminal voltage signal and
Described current signal generates control signal, by described control signal input by the input of described control signal to described first electricity
Source output unit and described second source output unit, so that the output of outfan is by the output switching of the first power output unit
Output to described second source output unit.
Device the most according to claim 4, it is characterised in that described control unit includes: detection sub-unit, controller and
Drive circuit；
Described detection electronic circuit, is used for detecting the first crystalline substance in described first power control unit and described second source control unit
The terminal voltage signal of brake tube and the current signal of load-side, and described terminal voltage signal and described current signal are sent to controlling
Device；
Described controller, for generating control signal according to described terminal voltage signal and described current signal, and by described control
Signal sends to described drive circuit；
Described drive circuit, for generating switch controlling signal and drive control signal, described switch according to described control signal
Control signal is for controlling described first power output unit and the catalyst of described second source output unit, described driving control
Signal processed is for driving described first power output unit and the first IGCT of described second source output unit and the second crystalline substance
Brake tube.
6. the method for the circuit driven described in any one of the claims 1-3, it is characterised in that including:
When receiving switching command, trigger the first IGCT and second IGCT of the first power output unit；
Control the catalyst of the first power output unit and perform disconnection action, and stop triggering described first IGCT and described the
Two IGCTs；
When the terminal voltage signal zero crossing of the 3rd IGCT of second source control unit being detected, controller is by driving electricity
Described in road direction, the 3rd IGCT sends drive control signal, to turn on described 3rd IGCT, so that defeated with described second source
The power supply going out unit connection is outwards powered by outfan, completes switching action.
Method the most according to claim 6, it is characterised in that when receiving switching command, triggers the first power supply output
Before first IGCT of unit and the step of the second IGCT, the method also includes:
When the terminal voltage zero crossing of described first IGCT being detected, controller passes through drive circuit to described first IGCT
Send drive control signal, to turn on described first IGCT so that the power supply being connected with described first power output unit leads to
Cross outfan outwards to power；
Send Guan Bi control signal to the catalyst of described first power output unit, move so that described catalyst performs to close a floodgate
Make, and after feed motion completes, stop triggering described first IGCT, to complete to start power supply action.
Method the most according to claim 6, it is characterised in that the catalyst of described control the first power output unit performs
Disconnection action, and the step stopping triggering described first IGCT and described second IGCT specifically includes:
After performing the deferred action of Preset Time, the catalyst controlling the first power output unit performs disconnection action；And holding
After the deferred action of row Preset Time, stop triggering described first IGCT and described second IGCT.
Method the most according to claim 7, it is characterised in that send to the catalyst of described first power output unit and close
Close control signal, so that described catalyst performs feed motion, and after feed motion completes, stop triggering the described first brilliant lock
The step of pipe specifically includes:
After performing the deferred action of Preset Time, send Guan Bi control signal to the catalyst of described first power output unit,
So that described catalyst performs feed motion, and after feed motion completes and perform the deferred action of Preset Time, stop touching
Send out the first IGCT described.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236203A (en) * | 2021-11-29 | 2022-03-25 | 国网北京市电力公司 | Load control system, load control method, storage medium, and electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010220339A (en) * | 2009-03-16 | 2010-09-30 | Fuji Electric Systems Co Ltd | Uninterruptible power supply system |
| CN102570590A (en) * | 2012-01-05 | 2012-07-11 | 青岛经济技术开发区创统科技发展有限公司 | Solid-state changeover switch |
| CN102801333A (en) * | 2012-08-13 | 2012-11-28 | 北京星网锐捷网络技术有限公司 | Voltage supplying device |
| CN202652141U (en) * | 2012-05-25 | 2013-01-02 | 陕西金源自动化科技有限公司 | Coal feeder frequency converter low voltage crossover device |
| CN104578154A (en) * | 2014-12-26 | 2015-04-29 | 上海新拓电力设备有限公司 | Low voltage ride-through method for coal feeder |
-
2016
- 2016-06-17 CN CN201610439827.1A patent/CN106099910B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010220339A (en) * | 2009-03-16 | 2010-09-30 | Fuji Electric Systems Co Ltd | Uninterruptible power supply system |
| CN102570590A (en) * | 2012-01-05 | 2012-07-11 | 青岛经济技术开发区创统科技发展有限公司 | Solid-state changeover switch |
| CN202652141U (en) * | 2012-05-25 | 2013-01-02 | 陕西金源自动化科技有限公司 | Coal feeder frequency converter low voltage crossover device |
| CN102801333A (en) * | 2012-08-13 | 2012-11-28 | 北京星网锐捷网络技术有限公司 | Voltage supplying device |
| CN104578154A (en) * | 2014-12-26 | 2015-04-29 | 上海新拓电力设备有限公司 | Low voltage ride-through method for coal feeder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236203A (en) * | 2021-11-29 | 2022-03-25 | 国网北京市电力公司 | Load control system, load control method, storage medium, and electronic device |
| CN114236203B (en) * | 2021-11-29 | 2023-10-24 | 国网北京市电力公司 | Load control system, method, storage medium and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106099910B (en) | 2018-08-07 |
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