CN204721088U - A kind of UPS bypass inversion switching device shifter - Google Patents
A kind of UPS bypass inversion switching device shifter Download PDFInfo
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- CN204721088U CN204721088U CN201520506666.4U CN201520506666U CN204721088U CN 204721088 U CN204721088 U CN 204721088U CN 201520506666 U CN201520506666 U CN 201520506666U CN 204721088 U CN204721088 U CN 204721088U
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Abstract
The utility model relates to a kind of UPS bypass inversion switching device shifter, comprise a UPS, UPS comprises an input unit, an AC/DC unit, a DC/AC unit, a storage battery and an output unit, be provided with an output switching unit between DC/AC unit and output unit, output switching unit comprises first input end, the second input, a control end and an output; The first input end of output switching unit is connected with input unit, second input of output switching unit is connected with the output of DC/AC unit, the output of output switching unit is connected with output unit, and the control end of output switching unit is connected with a control unit; Control unit is also connected with described input unit through a detecting unit.The utility model civil power power down or abnormal time, open immediately and compensate SCR control circuit, ensure at the power down time of output voltage in such cases minimum, to meet the application demand of more occasions.
Description
Technical field
The utility model relates to a kind of UPS bypass inversion switching device shifter.
Background technology
Along with the development of ups power technology, UPS application scenario constantly expands and power supply product kind is constantly updated, and is also constantly proposed the new capability of UPS and new demand.Wherein, energy-conservation with in load equipment reliability, the requirement to UPS oneself power consumption and out-put supply quality is proposed.
UPS is in the past divided into 3 classes substantially, off-line UPS (also referred to as energy saver mode) respectively, on line type UPS, on-line blackbody cavity, three kinds of modes are from the feature of output voltage, civil power output and inversion is mainly divided into again to export two kinds: the work characteristics of inversion output mode is: no matter whether normal civil power is, machine exports the output after being all through inverter conversion, this pattern is not substantially by the impact of input voltage, output voltage stabilization is reliable, but the loss of online system self is larger, and load its loss larger is also larger, in the occasion that power conservation requirement is higher, there is certain deficiency in this pattern.The work characteristics of civil power output mode is: when civil power is normal, the direct civil power of machine exports, now UPS inverter can be in cold standby or warm standby state, under inverter cold standby, UPS self not consumes power substantially, under Hot Spare the power consumption of UPS mainly unloaded under machine loss.When city's electrical anomaly, machine is by under being switched to inversion state fast, and ensureing that machine exports can not power down or short time power down, guarantees that load continues normal work.
For the pluses and minuses of these two kinds of patterns, at present the product of a lot of UPS manufacturer production all can compatibility then two kinds of patterns, can select mode of operation voluntarily according to user or application places.For backup type system, at civil power during lower or civil power power down, there is longer power down time in its output switching time, and the length of power down time many times can make this systematic difference be restricted.
Existing control mode is when UPS input is abnormal, UPS exports will switch to inversion state from bypass state, now control unit sends output relay control signal, but do not send bypass SCR control signal, this switching mode, when inputting power down or the unexpected step-down of input voltage, output voltage can be caused to there is power down time, power down time length is then the pickup time of output relay, and this allows the load equipment of short time power down for some, and this kind of processing mode can accept.When UPS input recovers normal, machine switches back bypass state from inversion state, control unit will close output relay, open bypass SCR simultaneously, this the output of process voltage can ensure it is normal, does not have what problem, in view of the requirement of current UPS application scenario to UPS output voltage stability is more and more higher, the stability of UPS output voltage is also proposed by numerous client, and the power down time of output voltage requires the smaller the better.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of UPS bypass inversion switching device shifter, when civil power power down or exception, opens immediately and compensates SCR control circuit, ensure at the power down time of output voltage in such cases minimum, to meet the application demand of more occasions.
The utility model realizes by the following technical solutions for achieving the above object: a kind of UPS bypass inversion switching device shifter, comprise a UPS, described UPS comprises an input unit, one AC/DC unit, one DC/AC unit, one storage battery and an output unit, described input unit, AC/DC unit, DC/AC unit and output unit connect successively, described storage battery is connected with the output of described AC/DC unit, it is characterized in that: between described DC/AC unit and output unit, be also provided with an output switching unit, described output switching unit comprises first input end, second input, one control end and an output, the first input end of described output switching unit is connected with described input unit, second input of described output switching unit is connected with the output of described DC/AC unit, the output of described output switching unit is connected with described output unit, and the control end of described output switching unit is connected with a control unit, described control unit is also connected with described input unit through a detecting unit.
Further, described output switching unit comprises a bypass SCR, an output relay and compensates SCR, one end of described output relay is as the second input of described output switching unit, the other end of described output relay is as the output of described output switching unit, described output relay is with described to compensate SCR in parallel, the other end of described output relay is connected with one end of described bypass SCR, and the other end of described bypass SCR is as the first input end of described output switching unit.
Further, described control unit is connected with described bypass SCR, output relay and the control end that compensates SCR respectively.
The utility model compared with prior art has following beneficial effect: ups system of the present utility model can realize inversion output and civil power bypass exported for zero switching time, when inputting power down or exception, by the detection to input, can be abnormal to input in fast detecting, control unit sends the control signal compensating SCR immediately, ensures to export power down time minimum.
Accompanying drawing explanation
Fig. 1 is the utility model schematic block circuit diagram.
In figure: 100-input unit; 101-detecting unit; 102-control unit; 103-output switching unit; 104-AC/DC unit; 106-storage battery; 107-DC/AC unit; 108-bypass SCR; 109-output relay; 110-compensates SCR; 111-output unit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Please refer to Fig. 1 the present embodiment and a kind of UPS bypass inversion switching device shifter is provided, comprise a UPS, described UPS comprises an input unit 100, one AC/DC unit 104, one DC/AC unit 107, one storage battery 106 and an output unit 111, described input unit 100, AC/DC unit 104, DC/AC107 unit and output unit 111 connect successively, described storage battery 106 is connected with the output of described AC/DC unit 104, it is characterized in that: between described DC/AC unit 107 and output unit 111, be also provided with an output switching unit 103, described output switching unit 103 comprises first input end, second input, one control end and an output, the first input end of described output switching unit 103 is connected with described input unit 100, second input of described output switching unit 103 is connected with the output of described DC/AC unit 107, the output of described output switching unit 103 is connected with described output unit 111, and the control end of described output switching unit 103 is connected with a control unit 102, described control unit 102 is also connected with described input unit 100 through a detecting unit 101.
Continue referring to Fig. 1,1st end of described output switching unit 103 is first input end, 2nd end is the second input, 3rd end is control end, 4th end is output, wherein said control unit is connected (not indicating annexation in figure) with described bypass SCR, output relay and the control end that compensates SCR respectively, described control unit respectively through described bypass SCR, output relay and the control end that compensates SCR control these three elements separately conducting and shutoff.
Further, described output switching unit 103 comprises a bypass SCR108, an output relay 109 and compensates SCR110, one end of described output relay 109 is as the second input of described output switching unit 103, the other end of described output relay 109 is as the output of described output switching unit 103, described output relay 109 is with described to compensate SCR110 in parallel, the other end of described output relay 109 is connected with one end of described bypass SCR108, and the other end of described bypass SCR108 is as the first input end of described output switching unit 103.
Understand this better to allow those skilled in the art and use novel technical scheme, below in conjunction with the function of each unit and specific works process, the utility model is further described.
Detecting unit 101, for detecting the voltage and frequency that input unit 100 is also civil power input;
Control unit 102, judges the operating state residing for UPS according to the data of detecting unit 101 transmission, controls the switching that output switching unit 103 carries out each output modes such as bypass, civil power inversion, battery inversion;
Output switching unit 103, the switching between the output modes such as bypass, civil power inversion, battery inversion is carried out in the instruction sent according to control unit 102.
The normal mode of UPS is bypass state, under described bypass morphotype formula, the input unit 100 of detecting unit 101 couples of UPS carries out the detection of voltage and frequency, calculate input voltage and incoming frequency, and judge civil power whether within the scope of normal bypass, namely whether input voltage and incoming frequency meet the input requirements of load:
If civil power is normal, bypass is normal, then the bypass SCR108 conducting of output switching unit 103, carries out bypass output;
If civil power is normal, bypass input voltage and incoming frequency exceed normal bypass scope, then ups system can carry out AC/DA unit 104 by city's electric boost, exported by DC/AC unit 107 inversion again, UPS switches to inversion state from bypass state, control unit 102 sends control signal to output switching unit, control bypass SCR108 to turn off, output relay 109 adhesive, compensate SCR110 conducting, by the time after output relay adhesive puts in place, control and compensation SCR110 turns off, if now city's electrical anomaly, ups system can be switched to storage battery 103 and power, carry out battery inversion output,
If bypass recovery is to time normal, UPS is switched to bypass state from inversion state, and control unit 102 sends control signal to output switching unit 103, bypass SCR108 conducting, and output relay 109 disconnects, and compensates SCR110 and keeps turning off.
The utility model has been connected in series one at inversion end and output and has compensated SCR control circuit on original topological structure, the control method of output signal is: when UPS input is abnormal, UPS is from bypass changeover to reversals, control unit 102 sends at once and turns off bypass SCR108 control signal, send adhesive output relay 109 and conducting compensation SCR110 control signal simultaneously, turn off again after output relay 109 adhesive completes and compensate SCR110.When inputting normal, UPS will switch back bypass from inversion state, and now control unit 102 sends signal disconnection output relay 109, the bypass of conducting simultaneously SCR108.Switching device shifter described in the utility model, when inputting power down or exception, by the detection to input, can be abnormal to input in the time fast detecting of 1 ~ 3ms, control unit 102 sends immediately and compensates SCR110 control signal, and it is minimum that guarantee exports power down time.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (3)
1. a UPS bypass inversion switching device shifter, comprise a UPS, described UPS comprises an input unit, an AC/DC unit, a DC/AC unit, a storage battery and an output unit, described input unit, AC/DC unit, DC/AC unit and output unit connect successively, described storage battery is connected with the output of described AC/DC unit, it is characterized in that: be also provided with an output switching unit between described DC/AC unit and output unit, described output switching unit comprises first input end, the second input, a control end and an output; The first input end of described output switching unit is connected with described input unit, second input of described output switching unit is connected with the output of described DC/AC unit, the output of described output switching unit is connected with described output unit, and the control end of described output switching unit is connected with a control unit; Described control unit is also connected with described input unit through a detecting unit.
2. UPS bypass inversion switching device shifter according to claim 1, it is characterized in that: described output switching unit comprises a bypass SCR, an output relay and compensates SCR, one end of described output relay is as the second input of described output switching unit, the other end of described output relay is as the output of described output switching unit, described output relay is with described to compensate SCR in parallel, the other end of described output relay is connected with one end of described bypass SCR, and the other end of described bypass SCR is as the first input end of described output switching unit.
3. UPS bypass inversion switching device shifter according to claim 2, is characterized in that: described control unit is connected with described bypass SCR, output relay and the control end that compensates SCR respectively.
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| CN201520506666.4U CN204721088U (en) | 2015-07-14 | 2015-07-14 | A kind of UPS bypass inversion switching device shifter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429206A (en) * | 2015-11-25 | 2016-03-23 | 许继电源有限公司 | Combined power supply apparatus |
| CN105471087A (en) * | 2015-12-25 | 2016-04-06 | 苏州迈力电器有限公司 | Commercial power inverting switching method and system |
| CN108336814A (en) * | 2018-02-09 | 2018-07-27 | 漳州科华技术有限责任公司 | A kind of off-line UPS |
| CN110994783A (en) * | 2020-01-02 | 2020-04-10 | 科华恒盛股份有限公司 | Uninterruptible power supply and control method thereof |
| CN112217277A (en) * | 2020-10-15 | 2021-01-12 | 石家庄通合电子科技股份有限公司 | UPS main bypass switching system |
-
2015
- 2015-07-14 CN CN201520506666.4U patent/CN204721088U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429206A (en) * | 2015-11-25 | 2016-03-23 | 许继电源有限公司 | Combined power supply apparatus |
| CN105471087A (en) * | 2015-12-25 | 2016-04-06 | 苏州迈力电器有限公司 | Commercial power inverting switching method and system |
| CN108336814A (en) * | 2018-02-09 | 2018-07-27 | 漳州科华技术有限责任公司 | A kind of off-line UPS |
| CN110994783A (en) * | 2020-01-02 | 2020-04-10 | 科华恒盛股份有限公司 | Uninterruptible power supply and control method thereof |
| CN112217277A (en) * | 2020-10-15 | 2021-01-12 | 石家庄通合电子科技股份有限公司 | UPS main bypass switching system |
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