CN109450081A - A kind of the remote power-off control system and control method of uninterruptible power supply - Google Patents
A kind of the remote power-off control system and control method of uninterruptible power supply Download PDFInfo
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- CN109450081A CN109450081A CN201811631042.XA CN201811631042A CN109450081A CN 109450081 A CN109450081 A CN 109450081A CN 201811631042 A CN201811631042 A CN 201811631042A CN 109450081 A CN109450081 A CN 109450081A
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- 230000005611 electricity Effects 0.000 claims abstract description 93
- 230000003111 delayed effect Effects 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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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
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The present invention provides the remote power-off control systems and control method of a kind of uninterruptible power supply, it passes through power supply control branch, remote power-off enables the circuit structure design of branch and shutdown triggering branch, uninterruptible power supply can effectively be controlled and reach default power-off duration in mains supply power-off, or uninterruptible power supply executes remote power-off in the case that electricity is less than default electricity limit value under mains supply off-position, reduce the risk that uninterruptible power supply causes damage because of its internal battery deep discharge, it realizes the operation to uninterruptible power supply in Wind turbines and over-discharge protection control is provided, and in the case where uninterruptible power supply works normally and mains supply does not power off, even if the remote power-off enable signal output end of master controller sends low level signal because of maloperation, the remote power-off operation of uninterruptible power supply will not be triggered, with compared with Good reliability and job stability.
Description
Technical field
The present invention relates to Control Technology of Wind Power Generation System field, in particular to the remote power-off control of a kind of uninterruptible power supply
System and control method processed.
Background technique
As wind generating technology reaches its maturity, wind power generating set (often referred to simply as Wind turbines) China much
Qu Douyou is widely arranged and is run.And in the area of Different climate, the environment that Wind turbines are faced also can be different, different
Temperature and humidity environment all can cause Different Effects to the normal operation of Wind turbines, wherein lower temperature easily damages Wind turbines
Control system.
The control system of Wind turbines mainly includes control cabinet, cabin cabinet, variable pitch cabinet, converter cabinet etc., is commonly referred to collectively as controlled
Cabinet processed, main component are electrical, microelectronics and power electronic element, to the more demanding of temperature and service condition.For example, control
Uninterruptible power supply (Uninterruptible Power Supply, referred to as UPS) in cabinet processed passes through 230VAC alternating current electricity
Source obtain it is electric, be converted to 24VDC DC power supply to as load electronic component provide power supply, not only can operate normally when guarantee
The load-carrying power quality of institute can also be such that wind power generating set smoothly shuts down and save data when alternating current powers off；In addition, when electricity
When there is low voltage crossing in net, UPS can umklappen be battery operated mode, using by its internal cell be institute's bringing onto load confession
Electricity, to guarantee that institute's bringing onto load passes through low voltage crossing time-bands.Therefore, the stability pair of uninterruptible power supply UPS operation
It is particularly important for wind power generating set.However, if because the reasons such as mains power fails, maintenance power off, uninterruptible power supply
UPS can be changed into battery operated mode, to be powered by its internal cell as institute's bringing onto load, but if alternating current power-off time mistake
In the case that long, uninterruptible power supply UPS electric quantity consumption causes remaining capacity too low, continues powered operation and be then likely to result in
The internal battery deep discharge of UPS and cause to damage, adverse effect is also resulted in for the operation stability of UPS.
Therefore, design it is a kind of in Wind turbines uninterruptible power supply operation provide over-discharge protection control arrange
It applies, has great importance for the steady operation operation of Wind turbines.
Summary of the invention
Aiming at the above shortcomings existing in the prior art, the purpose of the present invention is to provide a kind of the long-range of uninterruptible power supply
Power-off control system provides over-discharge protection control to the operation to uninterruptible power supply in Wind turbines.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of remote power-off control system of uninterruptible power supply, the first power end and second source including being connected in parallel on mains supply
Mains-supplied branch between end, for powering for uninterrupted power supply (ups) Unity；The uninterrupted power supply (ups) Unity for electricity output
High-voltage end and low-pressure end be connected to the master controllers of Wind turbines, for powering for main controller power source；
It further include the power supply control branch being connected in parallel between the first power end of mains supply and second source end, it is described for automatically controlled
Branch processed includes the Electromagnetic Control portion of concatenated multiconductor electromagentic switching apparatus and the first switch of multiconductor electromagentic switching apparatus
Portion, and the second switch portion of multiconductor electromagentic switching apparatus is connected in the mains-supplied branch；Multiconductor electromagnetic switch dress
The first switch portion and second switch portion set the Electromagnetic Control portion of multiconductor electromagentic switching apparatus obtain it is electric after be closed conducting；
Further include be connected to master controller remote power-off enable signal output end and uninterruptible power supply for electricity output low-pressure end
Between remote power-off enable branch, the remote power-off enables branch road and is connected with the Electromagnetic Control of the first electromagentic switching apparatus
Portion；The remote power-off enable signal output end of the master controller mains supply power-off reach default power-off duration or not between
Power-off source exports low level when electricity is less than default electricity limit value under mains supply off-position, otherwise exports high level；
It further include being connected to uninterruptible power supply for the shutdown between the high-voltage end of electricity output and the shutdown control terminal of uninterruptible power supply
Branch is triggered, the shutdown triggering branch includes the switch portion and multiconductor electromagnetic switch dress of concatenated first electromagentic switching apparatus
The third switch portion set；The Electromagnetic Control portion of first electromagentic switching apparatus obtain it is electric after, switch portion is switched to by normal closure state
It disconnects；The Electromagnetic Control portion of multiconductor electromagentic switching apparatus obtain it is electric after, third switch portion is switched to disconnection by normal closure state；
When the shutdown control terminal of the uninterruptible power supply obtains electric, uninterruptible power supply starts to execute power-off operation.
In the remote power-off control system of above-mentioned uninterruptible power supply, preferably, a length of 2 hours when the default power-off.
In the remote power-off control system of above-mentioned uninterruptible power supply, preferably, the default electricity limit value is uninterrupted
The 10% ~ 20% of source nominal electricity.
In the remote power-off control system of above-mentioned uninterruptible power supply, preferably, further including be connected in parallel on mains supply
Temperature control branch and starting triggering branch between one power end and second source end；
The temperature control branch includes the Electromagnetic Control portion of concatenated temperature detect switch (TDS), single-pole double throw electromagentic switching apparatus, the temperature control
Switch switched conductive temperature control branch when environment temperature is greater than or equal to default start-up temperature；
The starting triggering branch includes the delay electromagnetic switch dress being connected in parallel between first power end and second source end
The Electromagnetic Control portion set, and the delay triggering end in the electromagentic switching apparatus Electromagnetic Control portion that is delayed is connected to single-pole double throw electromagnetic switch
The first switch terminal of the second switch terminal of device, single-pole double throw electromagentic switching apparatus is connected to the first power supply of mains supply
The third switch terminal at end, single-pole double throw electromagentic switching apparatus is connected to by the switch portion for the electromagentic switching apparatus that is delayed for automatically controlled
In branch processed between the Electromagnetic Control portion of multiconductor electromagentic switching apparatus and the first switch portion of multiconductor electromagentic switching apparatus, and
The Electromagnetic Control portion of multiconductor electromagentic switching apparatus is far from the first switch of multiconductor electromagentic switching apparatus in power supply control branch
One terminal in portion is connected to the second source end of mains supply；The Electromagnetic Control portion power loss of single-pole double throw electromagentic switching apparatus
When, first switch terminal is connected with second switch terminal, when the Electromagnetic Control portion of single-pole double throw electromagentic switching apparatus obtains electric,
First switch terminal is connected with third switch terminal；The delay triggering end in Electromagnetic Control portion of the delay electromagentic switching apparatus is
When obtaining electricity condition, switch portion remains closed on state, when the delay triggering in the Electromagnetic Control portion of delay electromagentic switching apparatus
End from electricity condition variation be power failure state when, the switch portion for the electromagentic switching apparatus that is delayed disconnects immediately and when by default being delayed
Between after re-close conducting.
In the remote power-off control system of above-mentioned uninterruptible power supply, preferably, the default starting temperature of the temperature detect switch (TDS)
Degree is set as 5 DEG C.
In the remote power-off control system of above-mentioned uninterruptible power supply, preferably, the delay electromagentic switching apparatus is pre-
If delay time is 10 ~ 20 seconds.
Correspondingly, the present invention also provides a kind of remote power-off control methods of uninterruptible power supply；For this purpose, the present invention uses
The following technical solution:
A kind of remote power-off control method of uninterruptible power supply is carried out using the remote power-off control system of above-mentioned uninterruptible power supply
Control, control method specifically:
During normal work after uninterruptible power supply starting, in the case where mains supply keeps powering, due to for automatically controlled
Branch rood electricity processed, the Electromagnetic Control portion of multiconductor electromagentic switching apparatus are kept as electricity condition, the multiconductor in shutdown triggering branch
The third switch portion of electromagentic switching apparatus is off-state, while the remote power-off enable signal output end of master controller exports height
Level, the Electromagnetic Control portion of the first electromagentic switching apparatus obtain electric, the switch portion of the first electromagentic switching apparatus in shutdown triggering branch
It also is off-state, so that the shutdown control terminal of uninterruptible power supply, which is in, does not obtain electricity condition；
It is less than when mains supply power-off reaches default power-off duration or the uninterruptible power supply electricity under mains supply off-position
When default electricity limit value, mains supply is powered off so that the Electromagnetic Control portion of multiconductor electromagentic switching apparatus is lost in power supply control branch
Electricity, the third switch portion that shutdown triggers multiconductor electromagentic switching apparatus in branch are switched to normal closure state, while master controller
Remote power-off enable signal output end export low level, the Electromagnetic Control portion power loss of the first electromagentic switching apparatus so that shutdown
The switch portion of the first electromagentic switching apparatus is also switched to normal closure state in triggering branch, so that uninterruptible power supply is for electricity output
Form access between high-voltage end and the shutdown control terminal of uninterruptible power supply, the shutdown control terminal of uninterruptible power supply obtains electric, starts to hold
Row power-off operation realizes the remote power-off control of uninterruptible power supply.
In the remote power-off control method of above-mentioned uninterruptible power supply, preferably, a length of 2 hours when the default power-off.
In the remote power-off control method of above-mentioned uninterruptible power supply, preferably, the default electricity limit value is uninterrupted
The 10% ~ 20% of source nominal electricity.
Compared with the prior art, the invention has the following advantages:
1, the remote power-off control system and control method of uninterruptible power supply of the invention, can effectively control uninterruptible power supply and exist
Mains supply power-off reaches default power-off duration or the uninterruptible power supply electricity under mains supply off-position and is less than default electricity
Remote power-off is executed in the case where amount limit value, reduces the wind that uninterruptible power supply causes damage because of its internal battery deep discharge
Danger realizes the operation to uninterruptible power supply in Wind turbines and provides over-discharge protection control.
2, the remote power-off control system and control method of uninterruptible power supply of the invention is worked normally in uninterruptible power supply
And in the case that mains supply does not power off, even if the remote power-off enable signal output end of master controller sends low electricity because of maloperation
Ordinary mail number will not trigger the remote power-off operation of uninterruptible power supply, have preferable reliability and job stability.
Detailed description of the invention
Fig. 1 is the circuit structure diagram of the remote power-off control system embodiment one of uninterruptible power supply of the present invention.
Fig. 2 is the circuit structure diagram of the remote power-off control system embodiment two of uninterruptible power supply of the present invention.
Fig. 3 is the circuit structure diagram of the remote power-off control system embodiment three of uninterruptible power supply of the present invention.
Drawing reference numeral explanation:
UPS is uninterruptible power supply；
B1 is temperature detect switch (TDS)；01-02 is the switch portion of temperature detect switch (TDS) B1；
K1 is multiconductor electromagentic switching apparatus；11-12 is the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1, and 13-14 is more
The first switch portion of contact electromagnetic switch device K1,15-16 are the second switch portion of multiconductor electromagentic switching apparatus K1,17-18
For the third switch portion of multiconductor electromagentic switching apparatus K1；
K2 is delay electromagentic switching apparatus；21-22 is the Electromagnetic Control portion of delay electromagentic switching apparatus K2, and 2c is that delay electromagnetism is opened
The delay triggering end in device K2 Electromagnetic Control portion is closed, 23-24 is the switch portion of delay electromagentic switching apparatus K2；
K3 is single-pole double throw electromagentic switching apparatus；31-32 be single-pole double throw electromagentic switching apparatus K3 Electromagnetic Control portion, 33,34,
35 be respectively first switch terminal, second switch terminal and the third switch terminal of single-pole double throw electromagentic switching apparatus K3；
K4 is the first electromagentic switching apparatus；41-42 is the Electromagnetic Control portion of the first electromagentic switching apparatus K4, and 43-44 is the first electricity
The switch portion of magnetic switching device K4；
K5 is the second multiconductor electromagentic switching apparatus；51-52 is the Electromagnetic Control portion of the second multiconductor electromagentic switching apparatus K5,
53-54 is the first switch portion of the second multiconductor electromagentic switching apparatus K5, and 55-56 is the second multiconductor electromagentic switching apparatus K5's
Second switch portion；
K6 is the second electromagentic switching apparatus；61-62 is the Electromagnetic Control portion of the second electromagentic switching apparatus K6, and 63-64 is the second electricity
The switch portion of magnetic switching device K6.
In the accompanying drawings, the diagram state of the switch portion of delay electromagentic switching apparatus K2, for delay electromagentic switching apparatus K2 electricity
State when the delay triggering end in magnetic control portion obtains electric；In addition, the diagram state of the switch portion of other each electromagentic switching apparatus,
For corresponding electromagentic switching apparatus Electromagnetic Control portion power loss when state.
Specific embodiment
Embodiment one:
In the control system of Wind turbines, controller in master controller, that is, control cabinet, usually PLC controller
(Programmable Logic Controller, programmable logic controller (PLC)), by uninterruptible power supply UPS for electricity output
High-voltage end 24VDC and the electrical circuit power supply that is formed of low-pressure end 0VDC, be responsible for other electrical, microelectronics and electric power in control cabinet
The work of electronic component is controlled, and is monitored and controlled including the operating status to uninterruptible power supply UPS, therefore main control
Device be with uninterruptible power supply UPS keep signal communication, can monitor the mains supply power supply state of uninterruptible power supply UPS with
And the power state information of internal cell.Therefore, it can use master controller assistance, implement under uninterruptible power supply UPS low battery
Running protection.
As shown in Figure 1, the present invention provides a kind of remote power-off control systems of uninterruptible power supply, including it is connected in parallel on alternating current
Mains-supplied branch between the first power end 230VAC-L and second source end 230VAC-N of power supply, for being uninterrupted electric
Source UPS power supply；In the present invention, the position at the first power end and second source end can be interchanged, i.e., the first power end can be
230VAC-N, second source end can be 230VAC-L, have no effect on the implementation of technical solution of the present invention；The uninterruptible power supply
The master controller that Wind turbines are connected to for the high-voltage end 24VDC and low-pressure end 0VDC of electricity output of UPS, for being master controller
Power supply power supply；In addition, further include the power supply control branch being connected in parallel between the first power end of mains supply and second source end,
The power supply control branch includes Electromagnetic Control portion and the multiconductor electromagnetic switch dress of concatenated multiconductor electromagentic switching apparatus K1
The first switch portion of K1 is set, and the second switch portion of multiconductor electromagentic switching apparatus K1 is connected in the mains-supplied branch；
The first switch portion and second switch portion of multiconductor electromagentic switching apparatus K1 is in the electromagnetism control of multiconductor electromagentic switching apparatus K1
Portion processed obtain it is electric after be closed conducting；Further include be connected to master controller remote power-off enable signal output end " UPS_SD " and not between
Power-off source UPS enables branch for the remote power-off between the low-pressure end of electricity output, and the remote power-off enables branch road and is connected with
The Electromagnetic Control portion of first electromagentic switching apparatus K4；The remote power-off enable signal output end " UPS_SD " of the master controller exists
Mains supply power-off reach default power-off duration or uninterruptible power supply the UPS electricity under mains supply off-position be less than it is default
Low level is exported when electricity limit value, otherwise exports high level；It further include being connected to uninterruptible power supply UPS for the high-voltage end of electricity output
Shutdown between the shutdown control terminal " SD " of uninterruptible power supply UPS triggers branch, and the shutdown triggering branch includes concatenated
The switch portion of first electromagentic switching apparatus K4 and the third switch portion of multiconductor electromagentic switching apparatus K1；First electromagentic switching apparatus
The Electromagnetic Control portion of K4 obtain it is electric after, switch portion is switched to disconnection by normal closure state；The electricity of multiconductor electromagentic switching apparatus K1
Magnetic control portion obtain it is electric after, third switch portion is switched to disconnection by normal closure state；The shutdown of the uninterruptible power supply UPS controls
When " SD " being held to obtain electric, uninterruptible power supply UPS starts to execute power-off operation.
The remote power-off control system of uninterruptible power supply of the present invention, control mode are as follows: after uninterruptible power supply starting just
Often during work, in the case where mains supply keeps powering, due to power supply control branch rood electricity, multiconductor electromagnetic switch
The Electromagnetic Control portion of device K1 is kept as electricity condition, the third switch of multiconductor electromagentic switching apparatus K1 in shutdown triggering branch
Portion is off-state, while the remote power-off enable signal output end " UPS_SD " of master controller exports high level, the first electromagnetism
The Electromagnetic Control portion of switching device K4 obtain it is electric, shutdown triggering branch in the first electromagentic switching apparatus K4 switch portion also be disconnect shape
State will not trigger uninterruptible power supply UPS shutdown so that the shutdown control terminal " SD " of uninterruptible power supply UPS, which is in, does not obtain electricity condition；
When mains supply power off so that in power supply control branch multiconductor electromagentic switching apparatus K1 Electromagnetic Control portion power loss, shutdown triggering
The third switch portion of multiconductor electromagentic switching apparatus K1 is switched to normal closure state in branch, when mains supply power-off reaches default
When powering off duration or uninterruptible power supply UPS electricity being less than default electricity limit value under mains supply off-position, master controller
Remote power-off enable signal output end " UPS_SD " export low level, the Electromagnetic Control portion of the first electromagentic switching apparatus K4 is lost
Electricity, so that the switch portion of the first electromagentic switching apparatus K4 is also switched to normal closure state in shutdown triggering branch, thus uninterruptedly
Power supply UPS is for forming access, uninterruptible power supply between the high-voltage end of electricity output and the shutdown control terminal " SD " of uninterruptible power supply UPS
The shutdown control terminal " SD " of UPS must be electric, starts to execute power-off operation, realizes the remote power-off control of uninterruptible power supply UPS.
When concrete application, presets power-off duration and default electricity limit value can be according to the real protection of uninterruptible power supply UPS
It needs and is designed, for example, default power-off duration usually may be set to 2 hours, default electricity limit value usually be may be set to not
The 10% ~ 20% of uninterruptible power UPS specified electric quantity.And for the active controllers such as PLC, preset power-off duration and default electricity
The value of limit value is set at a benchmark value in system, and after default, the control process of multilevel iudge is then
Have active controller completely has control program to execute, and executes signal value and compares and export a level according to comparison result
Signal is also the simple and regular function of the active controllers such as PLC, be can be realized as using existing PLC controller.
Certainly, in the case where uninterruptible power supply works normally and mains supply does not power off, since mains supply to supply
The Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 is kept as electricity condition in electric control branch, so that more in shutdown triggering branch
The third switch portion of contact electromagnetic switch device K1 is off-state, is disconnected the shutdown control of high-voltage end Yu uninterruptible power supply UPS
Electrical connection access between end " SD " processed, so even the remote power-off enable signal output end " UPS_SD " of master controller is because accidentally
Operation sends low level signal, will not trigger the remote power-off operation of uninterruptible power supply UPS；In addition, being obtained in uninterruptible power supply
It,, can be by control for automatically controlled under conditions of temperature environment allows if mains supply restores electricity after remote power-off
Branch processed is connected again, restores the power supply to uninterruptible power supply UPS, so that uninterruptible power supply UPS is restarted.
Embodiment two:
When uninterruptible power supply needs to restart after shut down, if starting uninterruptible power supply under the temperature environment lower than 5 DEG C, hold
UPS damage is easily led to, adverse effect is also resulted in for the operation stability of UPS, therefore be preferably able to have and prevent uninterrupted electricity
The safeguard measure of source UPS cold-starting.
In the remote power-off control system of uninterruptible power supply of the present invention, power supply control branch is for maintaining uninterrupted electricity
The continued power state of source in normal operation.And wherein, the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 can be with
Design controls its electricity condition by temperature detect switch (TDS).For example, as shown in Figure 1, temperature detect switch (TDS) B1 can be designed can be in environment temperature
The Electromagnetic Control portion of switching control multiconductor electromagentic switching apparatus K1 obtains electric when degree is greater than or equal to default start-up temperature, specifically answers
Used time, default start-up temperature may be configured as 5 DEG C, to be matched with the cold-starting lower limit temperature of uninterruptible power supply UPS.
In this way, uninterruptible power supply is after shut down in the case where non-electrifying startup, environment temperature is lower than 5 DEG C in control cabinet
When default start-up temperature, the Electromagnetic Control portion that temperature detect switch (TDS) B1 will not control switching control multiconductor electromagentic switching apparatus K1 is obtained
Electricity, therefore the first switch portion of multiconductor electromagentic switching apparatus K1 and second switch portion are in off-state, power supply control branch
Road and mains-supplied branch for powering for uninterruptible power supply UPS do not turn on power supply, and uninterruptible power supply UPS not will start；
At this point, temperature detect switch (TDS) B1 can be used for the heater circuit in switching control conducting control cabinet, to environment temperature in control cabinet
Heat temperature raising is carried out, heater circuit is one of the common circuit in control cabinet control circuit, and physical circuit is designed as mature
The prior art, details are not described herein.When environment temperature raises to above or after default start-up temperature equal to 5 DEG C in control cabinet,
Temperature detect switch (TDS) B1 control switching control multiconductor electromagentic switching apparatus K1 Electromagnetic Control portion obtain it is electric so that multiconductor electromagnetic switch
The second switch portion of device K1 is connected, and the conducting of mains-supplied branch provides 230VAC power supply for uninterruptible power supply UPS, uninterrupted electricity
Source UPS is just started, and is reduced uninterruptible power supply and is caused to damage because of cold-starting；At the same time, due to power supply control branch
The first switch portion of multiconductor electromagentic switching apparatus K1 is also connected in road, so that power supply control branch forms continued power and leads to
Road is the Electromagnetic Control portion continued power of multiconductor electromagentic switching apparatus K1, is equivalent to so that multiconductor electromagentic switching apparatus K1
Self-locking current supply circuit is formed, hereafter, even if default start-up temperature of the environment temperature again below 5 DEG C causes temperature control to be opened in control cabinet
Power supply of the B1 disconnection to the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 is closed, multiconductor electromagnetic switch will not be again resulted in
Device K1 power down and disconnect mains-supplied branch, ensure that uninterruptible power supply UPS starting after continued power, avoid environment temperature
Degree fluctuates near default start-up temperature and uninterruptible power supply UPS is caused the operation such as frequently to power off, restart, and then between avoiding not
Power-off source UPS under the low temperature environment near default start-up temperature frequent starting and caused by damage, more favorably ensure uninterrupted
The service life and job stability of power supply UPS.
In the remote power-off control system of uninterruptible power supply of the invention, temperature detect switch (TDS) B1 switching control multiconductor electromagnetism
The Electromagnetic Control portion of switching device K1 obtains electric circuit design can be there are many form.For example, can be as shown in Figure 1, directly will
The Electromagnetic Control portion both ends of multiconductor electromagentic switching apparatus K1 are connected in parallel to the first power end and the second source end of mains supply again
Between, temperature detect switch (TDS) B1 is set in the parallel branch, in this way, temperature detect switch (TDS) B1 is greater than or equal to default starting in environment temperature
When temperature after switched conductive, the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 can obtain electric；But such circuit design side
Formula, when control cabinet interior environment temperature also fluctuates near default start-up temperature, not yet stably reach default start-up temperature value with
When upper, it is possible to temperature detect switch (TDS) B1 conducting can be triggered and that the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 is obtained is electric, touching
Uninterruptible power supply UPS starting is sent out, so that uninterruptible power supply UPS does not obtain effective cold-starting protection.
Therefore, as a kind of stability more preferably circuit design, as shown in Fig. 2, in uninterruptible power supply of the invention
Remote power-off control system in, can also design including being connected in parallel between the first power end of mains supply and second source end
Temperature control branch and starting triggering branch；The temperature detect switch (TDS) B1 is arranged in temperature control branch, and temperature control branch further includes and temperature
The Electromagnetic Control portion of the concatenated single-pole double throw electromagentic switching apparatus K3 of switch B1 is controlled, the temperature detect switch (TDS) B1 is greater than in environment temperature
Or switched conductive temperature control branch when being equal to default start-up temperature；The starting triggering branch includes being connected in parallel on first power end
The Electromagnetic Control portion of delay electromagentic switching apparatus K2 between second source end, and the electromagentic switching apparatus K2 Electromagnetic Control that is delayed
The delay triggering end in portion is connected to the second switch terminal of single-pole double throw electromagentic switching apparatus K3, single-pole double throw electromagentic switching apparatus
The first switch terminal of K3 is connected to the first power end of mains supply, the third switch terminals of single-pole double throw electromagentic switching apparatus K3
Son is connected to the electricity of multiconductor electromagentic switching apparatus K1 in power supply control branch by the switch portion for the electromagentic switching apparatus K2 that is delayed
Between magnetic control portion and the first switch portion of multiconductor electromagentic switching apparatus K1, and multiconductor electromagnetic switch in power supply control branch
One terminal in first switch portion of the Electromagnetic Control portion of device K1 far from multiconductor electromagentic switching apparatus K1 is connected to alternating current electricity
The second source end in source；When the Electromagnetic Control portion power loss of single-pole double throw electromagentic switching apparatus K3, first switch terminal and second
Switch terminal conducting, when the Electromagnetic Control portion of single-pole double throw electromagentic switching apparatus K3 obtains electric, first switch terminal is opened with third
Close terminal conducting；It is described delay electromagentic switching apparatus K2 Electromagnetic Control portion delay triggering end be electricity condition when, switch
Portion remains closed on state, when the delay triggering end in the Electromagnetic Control portion of delay electromagentic switching apparatus K2 changes from electricity condition is obtained
When for power failure state, the switch portion of delay electromagentic switching apparatus K2 is disconnected immediately and is re-closed after presetting delay time and leads
It is logical.
In this way, environment temperature is pre- lower than 5 DEG C in control cabinet in the case where uninterruptible power supply UPS non-electrifying startup
If when start-up temperature, temperature detect switch (TDS) B1 does not turn on temperature control branch, at the Electromagnetic Control portion of single-pole double throw electromagentic switching apparatus K3
It is connected in the first switch terminal of power failure state, single-pole double throw electromagentic switching apparatus K3 with second switch terminal, delay electromagnetism is opened
The delay triggering end for closing device K2 Electromagnetic Control portion is in obtain electricity condition, and the switch portion of delay electromagentic switching apparatus K2 remains closed
On state；But control at this time the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 still also not it is electric, therefore multiconductor is electric
The first switch portion and second switch portion of magnetic switching device K1 is in off-state, power supply control branch and for being uninterrupted
The mains-supplied branch of power supply UPS power supply does not turn on power supply, and uninterruptible power supply UPS not will start.
After environment temperature is greater than or equal to 5 DEG C of default start-up temperature in control cabinet, temperature detect switch (TDS) B1 control switching control
Temperature control branch processed is connected, and obtains electric, single-pole double throw electromagentic switching apparatus at the Electromagnetic Control portion of single-pole double throw electromagentic switching apparatus K3
The first switch terminal of K3 is connected with third switch terminal, leads to the delay triggering in delay electromagentic switching apparatus K2 Electromagnetic Control portion
End is power failure state from electricity condition variation is obtained, and the switch portion for the electromagentic switching apparatus K2 that is delayed at this time disconnects immediately, and by advance
If can just re-close conducting after delay time, therefore the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 can not obtain immediately
Electricity, until default delay time is delayed later, the switch portion of electromagentic switching apparatus K2 re-closes conducting, at this moment control cabinet inner ring
Border temperature fails to be remained above or be equal to default start-up temperature if there is temperature fluctuation, and temperature detect switch (TDS) B1 is then disconnected, and leads to list
The first switch terminal of dpdt double-pole double-throw (DPDT) electromagentic switching apparatus K3 is disconnected with third switch terminal, multiconductor electromagentic switching apparatus K1's
Electromagnetic Control portion then can not still obtain electric, and the first switch portion and second switch portion of multiconductor electromagentic switching apparatus K1 is still in
Off-state, and then uninterruptible power supply UPS starting will not be triggered；And if the switch portion of delay electromagentic switching apparatus K2 is being passed through
When re-closing conducting after default delay time, if environment temperature is also maintained at greater than or equal to 5 DEG C default in control cabinet
Under the conditions of start-up temperature, so that the first switch terminal of temperature detect switch (TDS) B1 control single-pole double throw electromagentic switching apparatus K3 is opened with third
It closes terminal to be held on, the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 just passes through the switch of delay electromagentic switching apparatus K2
The first switch terminal of portion and single-pole double throw electromagentic switching apparatus K3 be connected with third switch terminal the electrical circuit to be formed obtain it is electric,
So that the first switch portion and second switch portion of multiconductor electromagentic switching apparatus K1 are both turned on, it is connected to mains-supplied branch and confession
Electric control branch, uninterruptible power supply UPS is just able to for electrically activating, and is filled in power supply control branch by multiconductor electromagnetic switch
It sets K1 and forms self-locking current supply circuit.
As a result, in control cabinet environment temperature it is more stable reach default start-up temperature condition after, uninterrupted electricity
Source UPS is just able to further reduced the risk that uninterruptible power supply causes damage because of cold-starting, more favorably really for electrically activating
Protect the service life and job stability of uninterruptible power supply UPS.When concrete application, the default delay for the electromagentic switching apparatus K2 that is delayed
Time can according to need selection and be set as 10 ~ 20 seconds, can preferably guarantee that environment temperature is more stable in control cabinet
Reach default start-up temperature condition.
Embodiment three:
Uninterruptible power supply starting after work normally during, if environment temperature be reduced to -30 DEG C ~ -20 DEG C even hereinafter,
Uninterruptible power supply UPS and PLC controller continue working under conditions of excessive low temperature, it is possible to can damage the internal battery of UPS
And PLC controller, therefore be preferably able to have and prevent uninterruptible power supply UPS and PLC controller from continuing under excessive low temperature environment
The low-temperature protection measure of long-play.
In view of this, the remote power-off control system scheme of the uninterruptible power supply described in above-described embodiment one or embodiment two
On the basis of, as shown in figure 3, further the second multiconductor electromagentic switching apparatus of series connection can also be increased in power supply control branch
The first switch portion of K5；Meanwhile the second electromagnetism is also in series in the power supply line powered to master controller of uninterruptible power supply UPS and is opened
The switch portion of device K6 is closed, uninterruptible power supply UPS is for being also parallel with low-temperature protection control between the high-voltage end and low-pressure end of electricity output
Branch processed, the low-temperature protection controlling brancher include Electromagnetic Control portion and more than second touchings of concatenated second electromagentic switching apparatus K6
The second switch portion of point electromagentic switching apparatus K5；The Electromagnetic Control portion of second electromagentic switching apparatus K6 obtain it is electric after, switch portion is closed
Close conducting；In addition, also increase setting be connected to master controller low-temperature protection enable signal output end " UPS_RESET " and not between
Power-off source UPS enables branch for the low-temperature protection between the low-pressure end of electricity output, and the low-temperature protection enables branch road and is connected with
The Electromagnetic Control portion of second multiconductor electromagentic switching apparatus K5；The low-temperature protection enable signal output end of the master controller
" UPS_RESET " exports high level when environment temperature is lower than default protection temperature, otherwise exports low level；It being touched described second more
Point electromagentic switching apparatus K5 Electromagnetic Control portion obtain it is electric after, first switch portion and second switch close and are switched by normal closure state
To disconnect.Wherein, the default protection temperature is lower than the cold-starting temperature of uninterruptible power supply, and usually default protection temperature can be with
- 30 DEG C ~ -20 DEG C are set as, and the cold-starting temperature of uninterruptible power supply is usually 5 DEG C.
In this way, being equal to or higher than default protection in environment temperature during normal work after uninterruptible power supply starting
When temperature, the low-temperature protection enable signal output end " UPS_RESET " of master controller exports low level, and the second multiconductor electromagnetism is opened
The Electromagnetic Control portion power loss for closing device K5, in power supply control branch the first switch portion of the second multiconductor electromagentic switching apparatus K5 and
The second switch of electromagentic switching apparatus K5 keeps normal closure state in low-temperature protection controlling brancher, in low-temperature protection controlling brancher
The Electromagnetic Control portion of second electromagentic switching apparatus K6 obtain it is electric so that between the switch portion of the second electromagentic switching apparatus K6 is held on not
The power supply line that power-off source UPS powers to master controller, master controller are able to normal power supply work；Also, it is protected in mains supply
In the case where holding power supply, so that power supply control branch rood electricity, the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 is kept as electricity
State, the third switch portion of multiconductor electromagentic switching apparatus K1 is also off-state in shutdown triggering branch, while main control
The remote power-off enable signal output end " UPS_SD " of device exports high level, and the Electromagnetic Control portion of the first electromagentic switching apparatus K4 obtains
Electricity, the switch portion that shutdown triggers the first electromagentic switching apparatus K4 in branch is also off-state, so that the pass of uninterruptible power supply UPS
Machine control terminal " SD ", which is in, does not obtain electricity condition, will not trigger uninterruptible power supply UPS shutdown.
When environment temperature is lower than default protection temperature, the low-temperature protection enable signal output end " UPS_ of master controller
RESET " export high level, the Electromagnetic Control portion of the second multiconductor electromagentic switching apparatus K5 obtain it is electric so that in power supply control branch
The second of electromagentic switching apparatus K5 in the first switch portion of second multiconductor electromagentic switching apparatus K5 and low-temperature protection controlling brancher
Switch is switched to off-state；The first switch portion of second multiconductor electromagentic switching apparatus K5, which disconnects, leads to power supply control branch
The Electromagnetic Control portion power loss of middle multiconductor electromagentic switching apparatus K1, the of multiconductor electromagentic switching apparatus K1 in shutdown triggering branch
Three switch portions are switched to normal closure state, meanwhile, the second switch disconnection of electromagentic switching apparatus K5 leads to low-temperature protection control branch
The Electromagnetic Control portion power loss of second electromagentic switching apparatus K6 in road, so that between the switch portion of the second electromagentic switching apparatus K6 disconnects not
The power supply line that power-off source UPS powers to master controller, master controller power down shutdown cause the low-temperature protection of master controller enabled
Signal output end " UPS_RESET " and remote power-off enable signal output end " UPS_SD " are exported because shutting down power down as low electricity
It is flat；Remote power-off enable signal output end " UPS_SD " output is the Electromagnetic Control that low level makes the first electromagentic switching apparatus K4
Portion's power loss, so that the switch portion of the first electromagentic switching apparatus K4 is also switched to normal closure state in shutdown triggering branch, from
And uninterruptible power supply UPS is for forming access between the high-voltage end of electricity output and the shutdown control terminal " SD " of uninterruptible power supply UPS, no
The shutdown control terminal " SD " of uninterruptible power UPS must be electric, starts to execute power-off operation；Meanwhile low-temperature protection enable signal output end
" UPS_RESET " output is the Electromagnetic Control portion power loss that low level makes the second multiconductor electromagentic switching apparatus K5, so that
Electromagnetism is opened in the first switch portion of the second multiconductor electromagentic switching apparatus K5 and low-temperature protection controlling brancher in power supply control branch
The second switch for closing device K5 reverts to normal closure state again, in this moment, since uninterruptible power supply UPS is from starting to execute shutdown
It operates and is fully finished the long period (related with the shutdown programm setting of UPS production firm) that shutdown substantially needs 3s ~ 30s,
Uninterruptible power supply UPS power-off operation is not yet completed, therefore uninterruptible power supply UPS is still being executed for electricity output, therefore low temperature is protected
Protect controlling brancher in the second electromagentic switching apparatus K6 Electromagnetic Control portion again it is electric so that the second electromagentic switching apparatus K6's opens
Pass portion is connected the power supply line that uninterruptible power supply UPS powers to master controller herein, master controller again it is electric and restart；
The start-up course of master controller usually requires 2 ~ 3min, i.e. duration needed for the start-up course of master controller is greater than uninterruptible power supply
UPS completes the duration of power-off operation, in the start-up course of master controller, the remote power-off enable signal output end of master controller
" UPS_SD " still exports low level, therefore the Electromagnetic Control portion of the first electromagentic switching apparatus K4 keeps power failure state, makes
Must shut down triggering branch in the first electromagentic switching apparatus K4 switch portion continue keep normal closure state；Meanwhile before this more than second
The first switch portion of contact electromagnetic switch device K5 disconnects the electricity for leading to multiconductor electromagentic switching apparatus K1 in power supply control branch
After magnetic control portion power loss, the cold-starting temperature for being lower than uninterruptible power supply permission due to presetting protection temperature, and current environment temperature
Degree has been lower than default protection temperature, therefore current environmental temperature is not enough to trigger the cold-starting operation of uninterruptible power supply permission,
So the Electromagnetic Control portion of multiconductor electromagentic switching apparatus K1 can not again electric, therefore the electricity of multiconductor electromagentic switching apparatus K1
Magnetic control portion because can not again it is electric due to continue keep power failure state so that shutdown triggering branch in multiconductor electromagentic switching apparatus
The third switch portion of K1 continues to keep normal closure state, thus high-voltage end and uninterrupted electricity of the uninterruptible power supply UPS for electricity output
Continue between the shutdown control terminal " SD " of source UPS keep access, the shutdown control terminal " SD " of uninterruptible power supply UPS persistently it is electric,
So that uninterruptible power supply UPS maintains to execute power-off operation, until uninterruptible power supply UPS completes shutdown；Uninterruptible power supply UPS shutdown
After stop powering to master controller, master controller power down shutdown, the low temperature for being achieved in uninterruptible power supply UPS and master controller is protected
Shield shutdown control.
In specific application, master controller can be acquired by low-temperature protection sensor and obtain environment temperature, to control it
Low-temperature protection enable signal output end " UPS_RESET " exports high level when environment temperature is lower than default protection temperature, this is
Relatively simple temperature observation circuit design；In addition, default protection temperature can be set to -30 DEG C ~ -20 DEG C, to be matched with to not
The low-temperature protection demand of uninterruptible power UPS and active controller.And for the active controllers such as PLC, preset protection temperature
Value be set at a benchmark value in system, after default, the control process of multilevel iudge is then complete
Have active controller has control program to execute, and executes signal value and compares and export a level signal according to comparison result
It is also the simple and regular function of the active controllers such as PLC, can be realized as using existing PLC controller.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to reality
Example is applied to describe the invention in detail, those skilled in the art should understand that, it can be to technical side of the invention
Case is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (9)
1. a kind of remote power-off control system of uninterruptible power supply, the first power end and the second electricity including being connected in parallel on mains supply
Mains-supplied branch between source, for powering for uninterrupted power supply (ups) Unity；The power supply of the uninterrupted power supply (ups) Unity is defeated
High-voltage end and low-pressure end out is connected to the master controller of Wind turbines, for powering for main controller power source；It is characterized by:
It further include the power supply control branch being connected in parallel between the first power end of mains supply and second source end, it is described for automatically controlled
Branch processed includes Electromagnetic Control portion and the multiconductor electromagentic switching apparatus (K1) of concatenated multiconductor electromagentic switching apparatus (K1)
First switch portion, and the second switch portion of multiconductor electromagentic switching apparatus (K1) is connected in the mains-supplied branch；More touchings
The first switch portion and second switch portion of point electromagentic switching apparatus (K1) are in the electromagnetism control of multiconductor electromagentic switching apparatus (K1)
Portion processed obtain it is electric after be closed conducting；
It further include the remote power-off enable signal output end for being connected to master controller and uninterrupted power supply (ups) Unity for the low of electricity output
Remote power-off between pressure side enables branch, and the remote power-off enables branch road and is connected with the first electromagentic switching apparatus (K4)
Electromagnetic Control portion；The remote power-off enable signal output end of the master controller is when mains supply power-off reaches default power-off
Long or uninterrupted power supply (ups) Unity exports low level when electricity is less than default electricity limit value under mains supply off-position, otherwise
Export high level；
It further include being connected to uninterrupted power supply (ups) Unity for the high-voltage end of electricity output and the shutdown control terminal of uninterrupted power supply (ups) Unity
Between shutdown trigger branch, the shutdown triggering branch includes the switch portion of concatenated first electromagentic switching apparatus (K4) and more
The third switch portion of contact electromagnetic switch device (K1)；The Electromagnetic Control portion of first electromagentic switching apparatus (K4) obtain it is electric after, open
Pass portion is switched to disconnection by normal closure state；The Electromagnetic Control portion of multiconductor electromagentic switching apparatus (K1) obtain it is electric after, third is opened
Pass portion is switched to disconnection by normal closure state；When the shutdown control terminal of the uninterrupted power supply (ups) Unity obtains electric, uninterruptible power supply
(UPS) start to execute power-off operation.
2. the remote power-off control system of uninterruptible power supply according to claim 1, which is characterized in that when the default power-off
A length of 2 hours.
3. the remote power-off control system of uninterruptible power supply according to claim 1, which is characterized in that the default electricity limit
Value is the 10% ~ 20% of uninterrupted power supply (ups) Unity specified electric quantity.
4. the remote power-off control system of uninterruptible power supply according to claim 1, which is characterized in that further include being connected in parallel on city
Temperature control branch and starting triggering branch between the first power end and second source end of power supply；
The temperature control branch includes the Electromagnetic Control portion of concatenated temperature detect switch (TDS) (B1), single-pole double throw electromagentic switching apparatus (K3),
The temperature detect switch (TDS) (B1) switched conductive temperature control branch when environment temperature is greater than or equal to default start-up temperature；
The starting triggering branch includes the delay electromagnetic switch dress being connected in parallel between first power end and second source end
The Electromagnetic Control portion of (K2) is set, and the delay triggering end in electromagentic switching apparatus (K2) the Electromagnetic Control portion that is delayed is connected to single-pole double throw
The first switch terminal of the second switch terminal of electromagentic switching apparatus (K3), single-pole double throw electromagentic switching apparatus (K3) is connected to city
The third switch terminal of first power end of power supply, single-pole double throw electromagentic switching apparatus (K3) passes through delay electromagentic switching apparatus
(K2) switch portion is connected to the Electromagnetic Control portion of multiconductor electromagentic switching apparatus (K1) and multiconductor electricity in power supply control branch
Between the first switch portion of magnetic switching device (K1), and in power supply control branch multiconductor electromagentic switching apparatus (K1) electromagnetism control
One terminal in first switch portion of the portion processed far from multiconductor electromagentic switching apparatus (K1) is connected to the second source of mains supply
End；When the Electromagnetic Control portion power loss of single-pole double throw electromagentic switching apparatus (K3), first switch terminal is led with second switch terminal
Logical, when the Electromagnetic Control portion of single-pole double throw electromagentic switching apparatus (K3) obtains electric, first switch terminal is led with third switch terminal
It is logical；It is described delay electromagentic switching apparatus (K2) Electromagnetic Control portion delay triggering end be electricity condition when, switch portion keep
It is closed on state, when the delay triggering end in the Electromagnetic Control portion of delay electromagentic switching apparatus (K2) is lost from electricity condition variation is obtained
When electricity condition, the switch portion of delay electromagentic switching apparatus (K2) is disconnected immediately and is re-closed after default delay time and leads
It is logical.
5. the remote power-off control system of uninterruptible power supply according to claim 4, which is characterized in that the temperature detect switch (TDS)
(B1) default start-up temperature is set as 5 DEG C.
6. the remote power-off control system of uninterruptible power supply according to claim 4, which is characterized in that the delay electromagnetism is opened
The default delay time for closing device (K2) is 10 ~ 20 seconds.
7. a kind of remote power-off control method of uninterruptible power supply, which is characterized in that using uninterrupted electricity as described in claim 1
The remote power-off control system in source is controlled, control method specifically:
During normal work after uninterruptible power supply starting, in the case where mains supply keeps powering, due to for automatically controlled
Branch rood electricity processed, the Electromagnetic Control portion of multiconductor electromagentic switching apparatus (K1) are kept as electricity condition, more in shutdown triggering branch
The third switch portion of contact electromagnetic switch device (K1) is off-state, while the remote power-off enable signal of master controller exports
End output high level, the Electromagnetic Control portion of the first electromagentic switching apparatus (K4) obtain electric, the first electromagnetic switch in shutdown triggering branch
The switch portion of device (K4) is also off-state, so that the shutdown control terminal of uninterrupted power supply (ups) Unity, which is in, does not obtain electricity condition；
When mains supply power-off reaches default power-off duration or the uninterrupted power supply (ups) Unity electricity under mains supply off-position
When amount is less than default electricity limit value, mains supply power off so that in power supply control branch multiconductor electromagentic switching apparatus (K1) electricity
Magnetic control portion power loss, the third switch portion that shutdown triggers multiconductor electromagentic switching apparatus (K1) in branch are switched to normal closed form
State, while the remote power-off enable signal output end of master controller exports low level, the electromagnetism of the first electromagentic switching apparatus (K4)
Control unit power loss, so that the switch portion of the first electromagentic switching apparatus (K4) is also switched to normal closure state in shutdown triggering branch,
To which uninterrupted power supply (ups) Unity is for forming access between the high-voltage end of electricity output and the shutdown control terminal of uninterrupted power supply (ups) Unity,
The shutdown control terminal of uninterrupted power supply (ups) Unity obtain it is electric, start execute power-off operation, realize the long-range pass of uninterrupted power supply (ups) Unity
Machine control.
8. the remote power-off control method of uninterruptible power supply according to claim 7, which is characterized in that when the default power-off
A length of 2 hours.
9. the remote power-off control method of uninterruptible power supply according to claim 7, which is characterized in that the default electricity limit
Value is the 10% ~ 20% of uninterrupted power supply (ups) Unity specified electric quantity.
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| CN201811631042.XA CN109450081B (en) | 2018-12-29 | 2018-12-29 | Remote shutdown control system and control method for uninterruptible power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994776A (en) * | 2019-12-04 | 2020-04-10 | 河北世纪恒兴电子技术有限公司 | Intelligent standby power control device |
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| CN209389771U (en) * | 2018-12-29 | 2019-09-13 | 重庆科凯前卫风电设备有限责任公司 | A kind of remote power-off control system of uninterruptible power supply |
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| CN203218969U (en) * | 2013-03-18 | 2013-09-25 | 南京南汽专用车有限公司 | Uninterrupted power supply (UPS) circuit for vehicle inverter and commercial power |
| CN104909225A (en) * | 2015-06-25 | 2015-09-16 | 巨立电梯股份有限公司 | Machine room-free elevator UPS rescue control circuit |
| CN105275744A (en) * | 2015-11-13 | 2016-01-27 | 北京天诚同创电气有限公司 | Control device and method for low-temperature starting and running of wind generating set |
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