CN107994675A - Dual power supply seamless switching control device and its method of work - Google Patents
Dual power supply seamless switching control device and its method of work Download PDFInfo
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- CN107994675A CN107994675A CN201711138061.4A CN201711138061A CN107994675A CN 107994675 A CN107994675 A CN 107994675A CN 201711138061 A CN201711138061 A CN 201711138061A CN 107994675 A CN107994675 A CN 107994675A
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Relay Circuits (AREA)
Abstract
The present invention relates to a kind of dual power supply seamless switching control device and its method of work, this dual power supply seamless switching control device includes：Same period table, control circuit；Wherein described same period table is used to detect two-way power parameter, and after the two-way power supply same period, seamless switching between two-way power supply is realized by control circuit；The dual power supply seamless switching control device and its method of work of the present invention can realize between unit and unit, between unit and alternating current, seamless switching between alternating current and alternating current, and when in use without being controlled to respective load, realize that switching in parallel realizes that parallel running has stronger economy and terseness than existing parallel controller by using more economical simple same period table.
Description
Technical field
The present invention relates to a kind of dual power supply seamless switching control device and its method of work.
Background technology
Diesel generating set (hereinafter referred to as unit) conduct is provided for oneself or emergency standby power, is widely used in social life
All trades and professions.In industries such as finance, communication, hospital, traffic, power plant, island, ship, military projects, often unit in need it is in parallel or with
The situation that alternating current switches over, can occur wink between unit and unit, between unit and alternating current, between alternating current and alternating current during switching
Between have a power failure phenomenon, realization does not have a power failure, and i.e. every unit use parallel controller to seamless switching more at present for switching, are cut between alternating current
That changes uses switch fast switching device.Realize seamless switching, it is economical whether using parallel controller, or switch fast switching device
Cost is all higher, and the parallel controller price one of famous brand name switchs fast switching device price higher only more than 8,000 yuan at present.
Therefore, market thirsts for a kind of economic, easy dual power supply seamless switching control device occur.
The content of the invention
The object of the present invention is to provide a kind of dual power supply seamless switching control device and its method of work, with realize unit with
Seamless handover function between unit, between unit and alternating current, between alternating current and alternating current, had not only made easy to operate, but also significantly dropped
Low cost.
In order to solve the above technical problem, the present invention provides a kind of dual power supply seamless switching control device, including：The same period
Table, control circuit；Wherein described same period table is used to detect two-way power parameter, and after the two-way power supply same period, passes through control
Circuit realizes seamless switching between two-way power supply.
Further, the dual power supply seamless switching control device further includes：Control circuit；
The control circuit includes time-delay relay and same period selecting switch,
The time-delay relay is suitable for two power supplys of control in switching, and delay disconnects busbar power supply all the way, and
Two normally opened contacts in the time-delay relay are suitable for being respectively connected to two-way power output end in same period selecting switch；
I.e.
If the same period selecting switch busbar power supply will switch to another way and treat and power supply all the way, the time-delay relay
Coil obtain it is electric, at this time two-way power sources in parallel power；By delay, the normally opened contact for accessing the time-delay relay of busbar power supply closes
Close, cut-out busbar power supply connects main switch, makes to treat and power supply is independently-powered.
Further, the same period table includes for detecting two-way power parameter：Two-way power phase, voltage swing, phase,
Frequency；And
The condition of the two-way power supply same period is identical for two-way power phase, and power parameter is same or like.
Further, the same period table includes LED light,
The LED light, which is suitable to indicate that, treats the simultaneously frequency of power supply and the sized phases of voltage, when LED light rotates clockwise
When, show to treat that the frequency of simultaneously power supply is more than the frequency of busbar power supply；
Conversely, when LED light rotates counterclockwise, show to treat that the frequency of simultaneously power supply is less than the frequency of busbar power supply.
Further, the dual power supply seamless switching control device further includes：Indicating circuit；
The indicating circuit includes two-way relay, and corresponds to two-way power supply indicator respectively；
When the coil of a relay obtains electric, a normally opened contact of the relay closes so that corresponding power supply indicator point
It is bright；And
Another normally opened contact of two-way relay is connected serially to the supply line of the coil of the time relay；
Same period selecting switch will all the way busbar power supply switch to another way when and during power supply, the coil of two relays is at the same time
Electric, then relay corresponding normally opened contact closure so that the coil of the time relay obtain it is electric.
Another aspect, present invention also offers a kind of method of work of dual power supply seamless switching control device, including：
Same period table, control circuit；Wherein
The same period table is used to detect two-way power parameter, and after the two-way power supply same period, is realized by control circuit
Seamless switching between two-way power supply.
Further, the control circuit includes time-delay relay and same period selecting switch,
The time-delay relay is suitable for two power supplys of control in switching, and delay disconnects busbar power supply all the way, and
Two normally opened contacts in the time-delay relay are suitable for being respectively connected to two-way power output end in same period selecting switch；
I.e.
If the same period selecting switch busbar power supply will switch to another way and treat and power supply all the way, the time-delay relay
Coil obtain it is electric, at this time two-way power sources in parallel power；By delay, the normally opened contact for accessing the time-delay relay of busbar power supply closes
Close, cut-out busbar power supply connects main switch, makes to treat and power supply is independently-powered.
Further, the same period table includes for detecting two-way power parameter：Two-way power phase, voltage swing, phase,
Frequency；And
The condition of the two-way power supply same period is identical for two-way power phase, and power parameter is same or like.
Further, the same period table includes LED light,
The LED light, which is suitable to indicate that, treats the simultaneously frequency of power supply and the sized phases of voltage, when LED light rotates clockwise
When, show to treat that the frequency of simultaneously power supply is more than the frequency of busbar power supply；
Conversely, when LED light rotates counterclockwise, show to treat that the frequency of simultaneously power supply is less than the frequency of busbar power supply.
Further, the dual power supply seamless switching control device further includes：Indicating circuit；
The indicating circuit includes two-way relay, and corresponds to two-way power supply indicator respectively；
When the coil of a relay obtains electric, a normally opened contact of the relay closes so that corresponding power supply indicator point
It is bright；And
Another normally opened contact of two-way relay is connected serially to the supply line of the coil of the time relay；
Same period selecting switch will all the way busbar power supply switch to another way when and during power supply, the coil of two relays is at the same time
Electric, then relay corresponding normally opened contact closure so that the coil of the time relay obtain it is electric.
The invention has the advantages that the dual power supply seamless switching control device and its method of work of the present invention can be realized
Between unit and unit, between unit and alternating current, seamless switching between alternating current and alternating current, and when in use without thinking highly of oneself to each
Lotus is controlled, and realizes that switching in parallel is realized simultaneously than existing parallel controller by using more economical simple same period table
Through transport row has stronger economy and terseness.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the control schematic diagram of the dual power supply seamless switching control device of the present invention；
Fig. 2 is the panel schematic diagram of the same period table of the present invention；
Fig. 3 is the outline drawing of the dual power supply seamless switching control device of the present invention；
Fig. 4 is the circuit diagram of the dual power supply seamless switching control device of the present invention；
Fig. 5 is the dual power supply seamless switching control device control flow chart of the present invention.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
Embodiment 1
As shown in Figure 1, a kind of dual power supply seamless switching control device is present embodiments provided, including：Same period table, control electricity
Road；Wherein described same period table is used to detect two-way power parameter, and after the two-way power supply same period, two are realized by control circuit
Seamless switching between the power supply of road.
The same period table includes for detecting two-way power parameter：Two-way power phase, voltage swing, phase, frequency；With
And the condition of the two-way power supply same period is identical for two-way power phase, and power parameter is same or like.
In the present embodiment, same period table can use digital synchronous table KLY-S96-DR detection two-way supply voltages, together
After phase condition meets, relay lock-out pulse switching signal is sent.
As shown in Fig. 2, specifically, the same period table includes LED light, the LED light, which is suitable to indicate that, treats simultaneously electricity
The frequency in source and the sized phases of voltage, when LED light rotates clockwise, show to treat and the frequency of power supply are more than busbar power supply
Frequency；Conversely, when LED light rotates counterclockwise, show to treat that the frequency of simultaneously power supply is less than the frequency of busbar power supply.
Such as treat and power supply be unit, can manually or automatically be adjusted by unit electron speed regulator unit rotating speed until
LED light slowly rotates, when two-way supply voltage frequency difference be less than 0.5Hz, pressure difference be less than 5%, phase difference be less than 15 °, or
It is set by the user higher precision requirement, when synchronous meter top center green LED synchro light is lighted, synchroswitching relay in table
Device acts, and treats and power supply can be with asynchronous switch-on.
In the present embodiment, the control circuit includes time-delay relay and same period selecting switch, the time-delay relay
Suitable for two power supplys of control in switching, delay disconnects two normally opened contacts in busbar power supply, and the time-delay relay all the way
Suitable for being respectively connected to two-way power output end in same period selecting switch；Even described same period selecting switch will be cut busbar power supply all the way
Change another way into and treat simultaneously power supply, then the coil of the time-delay relay obtains electric, and two-way power sources in parallel is powered at this time；By being delayed,
The normally opened contact closure of the time-delay relay of busbar power supply is accessed, cut-out busbar power supply connects main switch, makes to treat and power supply is independent
Power supply, the setting time of the time relay is exactly the parallel running time of seamless switching.
After two-way power supply same period parallel connection, by appropriate delay (0-10S, time are adjustable), tripping 1# power supplys (are set to busbar
Power supply) switch, powered by 2# power supplys；Also the power supply of 1# power supplys can be switched to by 2# power supplys (be set to treat and power supply), realizes two-way electricity
Seamless switching between source.Seamless switching control device control schematic diagram is shown in Fig. 1.
As shown in figure 4, the dual power supply seamless switching control device further includes：Indicating circuit；The indicating circuit includes
Two-way relay, and two-way power supply indicator is corresponded to respectively；When the coil of a relay obtains electric, the one of the relay is normally opened tactile
Point closes so that corresponding power supply indicator is lighted；And another normally opened contact of two-way relay is connected serially to the time relay
The supply line of coil；Same period selecting switch will all the way busbar power supply switch to another way when and during power supply, two relays
Coil at the same time electric, then relay corresponding normally opened contact closure so that the coil of the time relay obtain it is electric.
Embodiment 2
As shown in Figures 1 to 5, on the basis of embodiment 1, the present embodiment 2 provides a kind of dual power supply seamless switching control
The method of work of device, including：
Same period table and control circuit；Wherein
The same period table is used to detect two-way power parameter, and after the two-way power supply same period, is realized by control circuit
Seamless switching between two-way power supply.
The control circuit includes time-delay relay and same period selecting switch,
The time-delay relay is suitable for two power supplys of control in switching, and delay disconnects busbar power supply all the way, and
Two normally opened contacts in the time-delay relay are suitable for being respectively connected to two-way power output end in same period selecting switch；
I.e.
If the same period selecting switch busbar power supply will switch to another way and treat and power supply all the way, the time-delay relay
Coil obtain it is electric, at this time two-way power sources in parallel power；By delay, the normally opened contact for accessing the time-delay relay of busbar power supply closes
Close, cut-out busbar power supply connects main switch, makes to treat and power supply is independently-powered.
The same period table includes for detecting two-way power parameter：Two-way power phase is identical, voltage swing, phase, frequency
Rate；And the condition of the two-way power supply same period is same or like for two-way power parameter.
The same period table includes LED light, the LED light be suitable to indicate that treat and the frequency of power supply and voltage it is big
Small phase, when LED light rotates clockwise, shows to treat that the frequency of simultaneously power supply is more than the frequency of busbar power supply；Conversely, work as LED light
Counterclockwise during rotation, show to treat that the frequency of simultaneously power supply is less than the frequency of busbar power supply.
The dual power supply seamless switching control device further includes：Indicating circuit；The indicating circuit includes two-way relay,
And two-way power supply indicator is corresponded to respectively；When the coil of a relay obtains electric, a normally opened contact of the relay close so that
Corresponding power supply indicator is lighted；And another normally opened contact of two-way relay is connected serially to the power supply of the coil of the time relay
Circuit；Same period selecting switch will all the way busbar power supply switch to another way when and during power supply, the coils of two relays is at the same time
Electricity, then relay corresponding normally opened contact closure so that the coil of the time relay obtain it is electric.
As shown in figure 4, it is three-phase and four-line AC power to set two-way power supply, direct sampled voltage is not more than 440V, frequency
For 50Hz or 60Hz, synchronous voltage uses two phases line voltages.The line difference corresponding A 1 of two-way power supply, (C1 is not required to by B1, C1, N1
Access) and A2, B2, C2, N2 (C2 is not required to access)；The conjunction position signal of sampling two-way power main switch corresponds to 1# main switches respectively
(corresponding wire size is respectively 101,104,201,204) to QF1,2# main switch QF2 in Fig. 4, is used as control and instruction.If not
Using the neutral conductor N1, N2, N1, N2 reconfiguration are bright using line voltage electricity to wire size 303, relay and power supply power supply indicator light in Fig. 4
Press grade.
Wherein power supply is another into busbar power supply all the way by changing selection (rotating selecting switch SA1) for same period selecting switch
Road is to treat simultaneously power supply.When 1# power supplys are powered, 1# main switches QF1, which is in, closes position, and 1# power supplys power supply indicator light is bright.
1# power supplys are busbar power supply.Such as to switch to when 2# power supplys power, when selecting switch SA1 is placed in 2# power supplys,
Make 2# power supplys to treat simultaneously power supply, when 2# power supplys meet asynchronous switch-on condition, same period table SYNC sends asynchronous switch-on signal, 2# electricity
Source main switch QF2 closes a floodgate (wire size 211,213), and 2# power supplys power supply indicator light is bright, at this time, two-way power sources in parallel.Through the 1# electricity that is delayed
Source main switch QF1 trip (wire size 114,116), 1# power supplys power switching to 2# power supplys power, realize two-way power supply without seaming and cutting
Change.
Similarly, it can also realize and be powered by 2# power supplys power switching to 1# power supplys.Selecting switch is placed in 0 after the completion of switching
Position.
The digital same period table that the present invention uses, has the visual visual effect of synchronizing process.
SYC6714 synchronizers can also be used, which is modularization isochronous controller, this homochronousness mistake
The not visible synchronizer of journey, it is identical with the same period table synchronization principles that the present invention uses, therefore Synchronization Control of the present invention can also use
SYC6714 synchronizers.
It is of the invention to be relatively shown in Table 1 with existing parallel controller.
Table 1 is of the invention compared with existing parallel controller
Due to the maturation of auto parallel Connection technology, many parallel controllers are used widely, these controllers are applied to machine
Between group and unit, parallel Operation Control between unit and alternating current.It is actual when only needing to carry out switching in parallel between this kind of power supply
Upper is exactly short time parallel running, and several seconds time just met the requirements, without being controlled to respective load, at this moment parallel controller
Load controlling function just do not play effect, and same period table only has synchronous parallel function, without sharing of load function, so
Realize that switching in parallel realizes parallel running with stronger than existing parallel controller using more economical simple same period table
Economy and terseness.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (10)
- A kind of 1. dual power supply seamless switching control device, it is characterised in that including：Same period table, control circuit；WhereinThe same period table is used to detect two-way power parameter, and after the two-way power supply same period, two-way is realized by control circuit Seamless switching between power supply.
- 2. dual power supply seamless switching control device according to claim 1, it is characterised in thatThe control circuit includes time-delay relay and same period selecting switch,The time-delay relay is suitable for two power supplys of control in switching, and delay disconnects busbar power supply all the way, andTwo normally opened contacts in the time-delay relay are suitable for being respectively connected to two-way power output end in same period selecting switch；I.e.If the same period selecting switch busbar power supply will switch to another way and treat and power supply all the way, the line of the time-delay relay Enclose electric, two-way power sources in parallel is powered at this time；By delay, the normally opened contact for accessing the time-delay relay of busbar power supply closes, Cut-out busbar power supply connects main switch, makes to treat and power supply is independently-powered.
- 3. dual power supply seamless switching control device according to claim 1 or 2, it is characterised in thatThe same period table includes for detecting two-way power parameter：Two-way power phase, voltage swing, phase, frequency；AndThe condition of the two-way power supply same period is identical for two-way power phase, and power parameter is same or like.
- 4. dual power supply seamless switching control device according to claim 3, it is characterised in thatThe same period table includes LED light,The LED light, which is suitable to indicate that, treats the simultaneously frequency of power supply and the sized phases of voltage, when LED light rotates clockwise, Show to treat that the frequency of simultaneously power supply is more than the frequency of busbar power supply；Conversely, when LED light rotates counterclockwise, show to treat that the frequency of simultaneously power supply is less than the frequency of busbar power supply.
- 5. dual power supply seamless switching control device according to claim 2, it is characterised in thatThe dual power supply seamless switching control device further includes：Indicating circuit；The indicating circuit includes two-way relay, and corresponds to two-way power supply indicator respectively；When the coil of a relay obtains electric, a normally opened contact of the relay closes so that corresponding power supply indicator is lighted；With AndAnother normally opened contact of two-way relay is connected serially to the supply line of the coil of the time relay；Same period selecting switch will all the way busbar power supply switch to another way when and during power supply, the coils of two relays is at the same time Electricity, then relay corresponding normally opened contact closure so that the coil of the time relay obtain it is electric.
- A kind of 6. method of work of dual power supply seamless switching control device, it is characterised in that including：Same period table, control circuit；WhereinThe same period table is used to detect two-way power parameter, and after the two-way power supply same period, two-way is realized by control circuit Seamless switching between power supply.
- 7. method of work according to claim 6, it is characterised in thatThe control circuit includes time-delay relay and same period selecting switch,The time-delay relay is suitable for two power supplys of control in switching, and delay disconnects busbar power supply all the way, andTwo normally opened contacts in the time-delay relay are suitable for being respectively connected to two-way power output end in same period selecting switch；I.e.If the same period selecting switch busbar power supply will switch to another way and treat and power supply all the way, the line of the time-delay relay Enclose electric, two-way power sources in parallel is powered at this time；By delay, the normally opened contact for accessing the time-delay relay of busbar power supply closes, Cut-out busbar power supply connects main switch, makes to treat and power supply is independently-powered.
- 8. the method for work according to claim 6 or 7, it is characterised in thatThe same period table includes for detecting two-way power parameter：Two-way power phase, voltage swing, phase, frequency；AndThe condition of the two-way power supply same period is identical for two-way power phase, and power parameter is same or like.
- 9. method of work according to claim 8, it is characterised in thatThe same period table includes LED light,The LED light, which is suitable to indicate that, treats the simultaneously frequency of power supply and the sized phases of voltage, when LED light rotates clockwise, Show to treat that the frequency of simultaneously power supply is more than the frequency of busbar power supply；Conversely, when LED light rotates counterclockwise, show to treat that the frequency of simultaneously power supply is less than the frequency of busbar power supply.
- 10. method of work according to claim 5, it is characterised in thatThe dual power supply seamless switching control device further includes：Indicating circuit；The indicating circuit includes two-way relay, and corresponds to two-way power supply indicator respectively；When the coil of a relay obtains electric, a normally opened contact of the relay closes so that corresponding power supply indicator is lighted；With AndAnother normally opened contact of two-way relay is connected serially to the supply line of the coil of the time relay；Same period selecting switch will all the way busbar power supply switch to another way when and during power supply, the coils of two relays is at the same time Electricity, then relay corresponding normally opened contact closure so that the coil of the time relay obtain it is electric.
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| CN201711138061.4A CN107994675A (en) | 2017-11-16 | 2017-11-16 | Dual power supply seamless switching control device and its method of work |
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| CN201711138061.4A CN107994675A (en) | 2017-11-16 | 2017-11-16 | Dual power supply seamless switching control device and its method of work |
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Cited By (1)
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Application publication date: 20180504 |