CN207304143U - Uninterrupted power supply(ups) - Google Patents
Uninterrupted power supply(ups) Download PDFInfo
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- CN207304143U CN207304143U CN201721176324.6U CN201721176324U CN207304143U CN 207304143 U CN207304143 U CN 207304143U CN 201721176324 U CN201721176324 U CN 201721176324U CN 207304143 U CN207304143 U CN 207304143U
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- ups
- rectifier
- power supply
- uninterrupted power
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Abstract
A kind of uninterrupted power supply(ups) is the utility model is related to, it includes rectifier, inverter, first switch, second switch, third switch, microprocessor control centre and static switch；The main power grid output terminal is connected through the first switch with the rectifier input, and the rectifier output end is connected with the inverter input terminal, and the inverter input terminal is also connected through the second switch with the energy-storage battery output terminal；The inverter output end is connected to described static switch one end, and the static switch other end is connected through the described 3rd switch with user load；The first switch, second switch, third switch, rectifier, inverter, static switch and user load are all controlled by the microprocessor control centre.The utility model can supplement the energy of UPS, avoid the problem that instant cut-off and tripping grinder.
Description
Technical field
A kind of apparatus for protecting power supply is the utility model is related to, especially with regard to a kind of uninterrupted power supply(ups).
Background technology
The widely applied UPS (uninterrupted power source) in wind-driven generator, be it is a kind of containing energy storage device, using inverter as
Main element, the power protective equipment of voltage stabilization and frequency stabilization output.It mainly plays two：One is Emergency use, prevents power grid
Power off suddenly and influence the normal work of blower fan control system, prevent infringement caused by therefore fan control system；Second, disappear
Except the influence to wind turbine such as instant high-voltage and moment low-voltage on power grid.For example completely three phase of well wind turbine is that company's life is transported in Zhejiang
The WD49/750KW type wind turbines of production, totally 66.By the operation more than 3 years, the UPS degree of agings in part fan are very big, often
The instant cut-off due to UPS occurs and tripping grinder, this not only have impact on the generated energy of wind turbine, and due to instant cut-off,
Damage to the electrical equipment of wind turbine is also very big.
UPS uninterrupted power sources are from charged pool, and due to being limited by space size in UPS cabinets, usual capacity is all smaller.
And this UPS from charged pool, since battery capacity is smaller, the electric current of charger also designs smaller, and this machine is general
Referred to as standard type, is fully loaded with the backup time at 10 minutes or so.And the capacity of external connection battery can according to load and
Preparation time length voluntarily configures, the max-reserved time can usually accomplish 8 it is small when or so, so battery capacity is all bigger,
And the charger current of host be also designed to it is bigger, if host charging current is inadequate, it is also necessary to separately configure external charging
Device.
The content of the invention
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of uninterrupted power supply(ups), which can supplement UPS
Energy, avoid the problem that instant cut-off and tripping grinder.
To achieve the above object, the utility model takes following technical scheme：A kind of uninterrupted power supply(ups), its feature exist
In：It includes rectifier, inverter, first switch, second switch, third switch, microprocessor control centre and static switch；
The main power grid output terminal is connected through the first switch with the rectifier input, the rectifier output end with it is described inverse
Become the connection of device input terminal, the inverter input terminal is also connected through the second switch with the energy-storage battery output terminal；It is described
Inverter output end is connected to described static switch one end, and the static switch other end is through the described 3rd switch and user load
Connection；The first switch, second switch, third switch, rectifier, inverter, static switch and user load are all by described
Microprocessor control centre controls.
Further, which further includes auto by pass and manual maintenance bypass；Bypass power grid output terminal connects described respectively
Auto by pass and manual maintenance bypass, are connected through the auto by pass with described static switch one end, other through the maintenance manually
Road is connected with the user load.
Further, the auto by pass includes the 4th switch, the 4th switch one end connection bypass power grid output
End, the other end connect described static switch one end；4th switch controls it to turn off shape by the microprocessor control centre
State.
Further, the manual maintenance bypass includes the 5th switch, and described 5th switch one end connects the bypass power grid
Output terminal, the other end are connected to the user load.
Further, which further includes display unit and communication unit；The microprocessor control centre is by after processing
Signal is transmitted to the communication unit through the display unit.
Further, the rectifier uses silicon-controlled or high-frequency switching rectifier.
Further, the energy-storage battery is by storage battery and UPS used in General Corporation's GE wind turbines for changing
Storage battery is connected in parallel composition.
Due to taking above technical scheme, it has the following advantages the utility model：1st, the utility model due to take by
It is connected in parallel use using storage battery used in the GE wind turbines changed and weathered UPS, can be not only filled
The value that continues with of UPS is waved in distribution, and by the energy of GE wind turbine storage batteries, can supplement the energy of UPS, ensures current potential
Normally, instant cut-off is avoided the problem that and tripping grinder occurs.Therefore not only reduce operation cost, improve generating efficiency, and
And also old and useless battery is set to have obtained secondary use.2nd, the utility model realizes purification function using energy-storage battery, due to rectifier
Transient pulse interference cannot be eliminated, the voltage after rectification still suffers from disturbing pulse.Energy-storage battery, which removes, can store the straight energy of direct current
Outside function, just as having connect a bulk container capacitor, the size of its equivalent electric capacity, with energy-storage battery capacity for rectifier
Size is directly proportional.Since the voltage at capacitance both ends cannot be mutated, that is, capacitor make use of to eliminate the smoothness properties of pulse
Impulse disturbances, play purification function, the also referred to as shielding to interference.3rd, the inverter of the utility model realizes the steady of frequency
Fixed, frequency stability depends on the degree of stability of the frequency of oscillation of inverter.4th, the utility model can reduce standby power loss,
Raising input work total harmonic voltage and electric current because (POWERFACTERCORRECTIVE) is reduced, reduce the loss of user equipment,
Under wide alternating current input range, power supply quality and complete machine operational efficiency are improved, realizes energy saving purpose.
Brief description of the drawings
Fig. 1 is uninterrupted power source operation principle schematic diagram；
Fig. 2 is the overall structure diagram of the utility model.
Embodiment
So-called uninterrupted power source, is that storage battery (being mostly plumbic acid maintenance-free storage battery) is connected with host, passes through host
Direct current is converted into the system equipment of alternating current by the modular circuits such as inverter.Be mainly used for fan electronic equipment such as WP3100,
The offers such as communication module, solenoid valve, pressure transmitter are stable, continual supply of electric power.When alternating current input is normal, UPS will
It is supplied to load to use after alternating current voltage stabilizing, UPS at this time is exactly an electric main voltage-stablizer, while it is also filled to self-contained battery
Electricity；When commercial power interruption (forced outage), UPS immediately by the direct current energy of battery, by the method for inverter switch transition to
Load continues to supply 220V alternating currents, makes load maintain to work normally and protects load soft and hardware without damage.UPS equipment is led to
Often protection can be provided to overtension or brownout.
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, when network voltage is working properly, powering load, and charge at the same time to energy-storage battery；When prominent
When hair has a power failure, ups power is started to work, and the power supply as needed for energy-storage battery supply load, maintains normal production；When due to production
Need, when loading heavy overload, by the rectified direct powering load of network voltage.
As shown in Fig. 2, the utility model provides a kind of uninterrupted power supply(ups), it includes rectifier, inverter, first opens
Pass, second switch, the 3rd switch, microprocessor control centre and static switch.Main power grid output terminal is through first switch and rectification
Device input terminal connects, and rectifier output end is connected with inverter input terminal, and inverter input terminal is also through second switch and energy storage electricity
Pond output terminal connection；Inverter output end is connected to static switch one end.The static switch other end is born through the 3rd switch with user
Carry connection.First switch, second switch, third switch, rectifier, inverter, static switch and user load are all by microprocessor
Device control centre controls.
In above-described embodiment, the uninterrupted power supply(ups) of the utility model further includes auto by pass and manual maintenance bypass.
Bypass power grid output terminal connects auto by pass and manual maintenance bypass respectively, is connected through auto by pass with static switch one end, passes through
Manual maintenance bypass is connected with user load.
Wherein, auto by pass includes the 4th switch, and the 4th switch one end connection bypasses power grid output terminal, and other end connection is quiet
State switchs one end.And the 4th switch controls its off state by microprocessor control centre.
Manual maintenance bypass includes the 5th switch, the 5th switch one end connection bypass power grid output terminal, and the other end is connected to
User load.
In use, when overload (150% load) occurs, auto by pass state is jumped to, and return automatically when loading normal
Return, realize overload protection function.When occurring seriously to overload (more than 200% nominal load), stop inverter output immediately simultaneously
Auto by pass state is jumped to, manual maintenance bypass may also trip at this time.After eliminating failure, as long as closing a switch, turn back on
Start to resume work.
In the various embodiments described above, the uninterrupted power supply(ups) of the utility model further includes display unit and communication unit.It is micro-
Signal after processing is transmitted to communication unit by processor control centre through display unit, is carried out by communication unit and existing equipment
Communication.
In the various embodiments described above, rectifier is used for realization voltage stabilizing function, and rectifier can use silicon-controlled or HF switch
Rectifier, itself having the function of can be according to the change control output amplitude of dispatch from foreign news agency, so that (change when dispatch from foreign news agency changes
Should meet system requirements), the rectified voltage that output amplitude is basically unchanged.
In the various embodiments described above, energy-storage battery is by storage battery and UPS used in General Corporation's GE wind turbines for changing
In storage battery be connected in parallel composition, it is 12V that can so ensure battery tension, and then ensures UPS normal works.Because
It is too long mainly due to the storage battery service life in UPS by checking the equipment for finding these instant cut-off tripping grinders, store
Battery life reduce and caused by.But all to replace, required is costly.It is and used in the GE wind turbines of General Corporation
Storage battery group be the storage battery group being composed in series by 6 12V storage batteries, some storage batteries are also in the storage battery group changed
It can be continuing with.For example by the measurement to single storage battery, the voltage for finding many storage batteries is still 12V, completely
It can meet the requirement of storage battery in UPS.
In conclusion when the utility model is used, when alternating current is normally 380/220VAC, direct current major loop has direct current
Voltage, supplies DC-AC AC inverters, exports stable 220V or 380V alternating voltages, at the same alternating current it is rectified after to battery
Charging.When whenever alternating current is under-voltage or unexpected power down, then feed electric energy from energy-storage battery to DC loop, from power grid power supply to
Battery powered does not have switching time.When energy-storage battery energy will exhaust, stop inverter in energy-storage battery electric discharge lower-limit point
Work.
The various embodiments described above are merely to illustrate the utility model, wherein the structure of each component, connection mode and manufacture craft
Deng can all be varied from, every equivalents carried out on the basis of technical solutions of the utility model and improvement,
It should not exclude outside the scope of protection of the utility model.
Claims (7)
- A kind of 1. uninterrupted power supply(ups), it is characterised in that：It includes rectifier, inverter, first switch, second switch, the Three switches, microprocessor control centre and static switch；Main power grid output terminal is inputted through the first switch and the rectifier End connection, the rectifier output end are connected with the inverter input terminal, and the inverter input terminal is also opened through described second Pass is connected with energy-storage battery output terminal；The inverter output end is connected to described static switch one end, and the static switch is another One end is connected through the described 3rd switch with user load；The first switch, second switch, third switch, rectifier, inversion Device, static switch and user load are all controlled by the microprocessor control centre.
- 2. uninterrupted power supply(ups) as claimed in claim 1, it is characterised in that：The device further includes auto by pass and manually dimension Repair bypass；Bypass power grid output terminal connect the auto by pass and manual maintenance bypass respectively, through the auto by pass with it is described Static switch one end connects, and is connected through the manual maintenance bypass with the user load.
- 3. uninterrupted power supply(ups) as claimed in claim 2, it is characterised in that：The auto by pass includes the 4th switch, institute The 4th switch one end connection bypass power grid output terminal is stated, the other end connects described static switch one end；4th switch Its off state is controlled by the microprocessor control centre.
- 4. uninterrupted power supply(ups) as claimed in claim 2, it is characterised in that：The manual maintenance bypass is opened including the 5th Close, the 5th switch one end connection bypass power grid output terminal, the other end is connected to the user load.
- 5. uninterrupted power supply(ups) as claimed in claim 1, it is characterised in that：The device further includes display unit and communication is single Member；Signal after processing is transmitted to the communication unit by the microprocessor control centre through the display unit.
- 6. uninterrupted power supply(ups) as claimed in claim 1, it is characterised in that：The rectifier is opened using silicon-controlled or high frequency Close rectifier.
- 7. uninterrupted power supply(ups) as claimed in claim 1, it is characterised in that：The energy-storage battery is general by what is changed Storage battery in company's GE wind turbines in used storage battery and UPS is connected in parallel composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721176324.6U CN207304143U (en) | 2017-09-14 | 2017-09-14 | Uninterrupted power supply(ups) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721176324.6U CN207304143U (en) | 2017-09-14 | 2017-09-14 | Uninterrupted power supply(ups) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546845A (en) * | 2017-09-14 | 2018-01-05 | 中节能风力发电(张北）运维有限公司 | A kind of uninterrupted power supply(ups) |
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- 2017-09-14 CN CN201721176324.6U patent/CN207304143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546845A (en) * | 2017-09-14 | 2018-01-05 | 中节能风力发电(张北）运维有限公司 | A kind of uninterrupted power supply(ups) |
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