CN207069918U - Static Electro minor voltage-stabilized power supply - Google Patents
Static Electro minor voltage-stabilized power supply Download PDFInfo
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- CN207069918U CN207069918U CN201720641088.4U CN201720641088U CN207069918U CN 207069918 U CN207069918 U CN 207069918U CN 201720641088 U CN201720641088 U CN 201720641088U CN 207069918 U CN207069918 U CN 207069918U
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Abstract
A kind of Static Electro minor voltage-stabilized power supply, including input handover module, input transformer, input reactance device, Three-Phase PWM Rectifier, Single-phase PWM Inverter, display system, LC output filters, protection system and output transformer；Wherein input handover module connection two-way input power；Input handover module is connected with input transformer；Input transformer connects input reactance device and protection system respectively；Input reactance device is connected with Three-Phase PWM Rectifier；Three-Phase PWM Rectifier is connected with Single-phase PWM Inverter, and Single-phase PWM Inverter is connected with LC output filters；Output transformer externally carries out voltage output.Three-phase alternating current is converted to by direct current energy by Three-Phase PWM Rectifier, pass through single-phase PWN inverters output single-phase 127V AC energies again, the sine degree of output voltage can be kept very well in outlet side, from the big influence of distortion current, so as to ensure that the reliability and stability of power supply power supply.
Description
Technical field
The technical field of voltage-stabilized power supply is the utility model is related to, specifically a kind of Static Electro minor voltage-stabilized power supply.
Background technology
With the continuous development of high-yield and high-efficiency production technique and the continuous improvement of Automation of Manufacturing Process degree, it is desirable to improve
Production efficiency and production security, various large scale equipments and monitoring device are widely applied.On the one hand these high-power set
In the case of standby prolonged oepration at full load, no-load running or shutdown, equipment frequent starting, the ripple of line voltage can be all caused
Dynamic, fluctuation can not effectively filter out；On the other hand, existing voltage-stabilized power supply generally only accesses input power all the way, when inputting all the way
When power supply power supply is abnormal, whole voltage-stabilized power supply is stopped power supply, and can not ensure the continuation of access device work.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Static Electro minor voltage-stabilized power supply.
The utility model is adopted the technical scheme that to solve technical problem present in known technology:
Static Electro minor voltage-stabilized power supply of the present utility model, it is characterised in that：Including input handover module, input transformation
Device, input reactance device, Three-Phase PWM Rectifier, Single-phase PWM Inverter, display system, LC output filters, protection system and defeated
Go out transformer；Wherein input handover module connection two-way input power；Input handover module is connected with input transformer；Input
Transformer connects input reactance device and protection system, protection system acquisition input voltage and input zero-sequence current respectively；Input electricity
Anti- device is connected with Three-Phase PWM Rectifier；Three-Phase PWM Rectifier is connected with Single-phase PWM Inverter, and Three-Phase PWM Rectifier
It is connected respectively with display system with Single-phase PWM Inverter, Single-phase PWM Inverter is connected with LC output filters；Protection system
Gather output current；Output transformer externally carries out voltage output.
The utility model can also use following technical measures：
Also include bypass power supply module and bypass changeover module, bypass power supply module is connected with input transformer, bypass
Handover module is arranged between LC output filters and output transformer, and bypass power supply module and LC output filters connect simultaneously
To bypass changeover module, output transformer is connected to by bypass changeover module.
Communication unit is set in display system.
The utility model has the advantages and positive effects of:
In Static Electro minor voltage-stabilized power supply of the present utility model, using the access infrastructure of two-way power input, when wherein one
When road is stopped power supply, allow hand over to another way, so as to ensure the continuity of power supply power supply.Set three-phase PWM whole in circuit
Device and Single-phase PWM Inverter are flowed, three-phase alternating current is converted to by direct current energy by Three-Phase PWM Rectifier, then pass through single-phase PWN
Inverter output single-phase 127V AC energies, the sine degree of output voltage can be kept very well in outlet side, from distortion current
It is big to influence, so as to ensure that the reliability and stability of power supply power supply.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model Static Electro minor voltage-stabilized power supply；
Fig. 2 is the schematic diagram that handover module is inputted in Static Electro minor voltage-stabilized power supply of the present utility model.
Embodiment
The technical solution of the utility model is described in detail below by way of the drawings and specific embodiments.
As shown in figure 1, Static Electro minor voltage-stabilized power supply of the present utility model, it is characterised in that：Including input handover module,
Input transformer, input reactance device, Three-Phase PWM Rectifier, Single-phase PWM Inverter, display system, LC output filters, protection
System and output transformer；Wherein input handover module connection two-way input power；Input handover module and input transformer phase
Connection；Input transformer connects input reactance device and protection system, protection system acquisition input voltage and input zero sequence electricity respectively
Stream；Input reactance device is connected with Three-Phase PWM Rectifier；Three-Phase PWM Rectifier is connected with Single-phase PWM Inverter, and three-phase
PWM rectifier and Single-phase PWM Inverter are connected with display system respectively, and Single-phase PWM Inverter is connected with LC output filters；
Protect system acquisition output current；Output transformer externally carries out voltage output.
Also include bypass power supply module and bypass changeover module, bypass power supply module is connected with input transformer, bypass
Handover module is arranged between LC output filters and output transformer, and bypass power supply module and LC output filters connect simultaneously
To bypass changeover module, output transformer is connected to by bypass changeover module.
As shown in Fig. 2 in order to ensure the reliable power supply of system, system is by the way of double circuit power supply.When arbitrarily all the way
During power loss, input handover module can automatically switch to another way stand-by power supply in the case of unmanned intervene, on condition that separately
Stand-by power supply is normal all the way.KM1 and KM2 controls the access of main power source and stand-by power supply respectively, distinguishes Access Control at T1 and T2
Circuit, the control circuit are prior art.
Input transformer main function is by the skilful low-voltage for being reduced to system needs of high electricity, while the work also with isolation
With.Transformer opens power network high pressure and isolation of system, can prevent because line voltage great fluctuation process or ingeniously become damages to system.Such as
Power network high pressure is directly carried out rectification and handled without decompression by fruit, so can not only there is very high want to the pressure voltage of power device
Ask, and rectification directly is carried out to high pressure so that the reliability of system reduces, while can increase the cost of system.
Input reactance device is the indispensable part of Three-Phase PWM Rectifier, mainly plays Isolation, energy storage etc..
Three-Phase PWM Rectifier plays PFC, not only exportable stably and controllable DC voltage, Er Qieqi
By controlling exchange input side electric current to hold sine accordingly, the angle with power network electromotive force is also controllable, i.e. power factor
It is adjustable.Input side electric current must keep same-phase as far as possible with power network electromotive force in the utility model, work in High Power Factor shape
State.
The DC power conversion that Single-phase PWM Inverter not only exports Three-Phase PWM Rectifier is alternating current, but also necessary
The sine degree of output voltage waveforms and the stabilization of voltage effective value when guarantee system is powered to any load.
LC output filters filter out the radio-frequency component of the PWM ripples of single-phase inverter output, and output low frequency part carries for load
For power frequency sine wave.
The physical circuit of Three-Phase PWM Rectifier, Single-phase PWM Inverter and LC output filters is all prior art, herein
Repeat no more.
Bypass changeover module ensures, in the alternating current steady voltage plug system failure or during to system overhaul, not influence the normal of load
Power supply.When power network power supply is normal and during the system failure, 127V switchings can be automatically load supplying by bypass changeover.
Output transformer will input isolates with output, on the other hand obtains required output voltage width using transformer
Value.
Protection system is undertaken to rectification and inversion system in short-circuit, over-pressed, under-voltage, overload and the situation of overheat, this module
Corresponding protection work, it is extremely important to working for a long time for system.
Display system shows the working condition of whole system, and the work parameter of system is intuitively shown into staff can lead to
Cross the working condition that display interface grasps system；And communication unit is set in display system, be easy to host computer and remotely read be
The state parameter of system.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is any however, be not limited to the utility model although the utility model is disclosed as above with preferred embodiment
Those skilled in the art, do not departing from the range of technical solutions of the utility model, can utilize certainly in the technology disclosed
Appearance makes a little change or modification, turns into the equivalent embodiment of equivalent variations, as long as being without departing from technical solutions of the utility model
Content, any simple modification, equivalent change and modification made to above example according to the technical essence of the utility model,
Belong in the range of technical solutions of the utility model.
Claims (3)
- A kind of 1. Static Electro minor voltage-stabilized power supply, it is characterised in that：Including input handover module, input transformer, input reactance Device, Three-Phase PWM Rectifier, Single-phase PWM Inverter, display system, LC output filters, protection system and output transformer；Its Middle input handover module connection two-way input power；Input handover module is connected with input transformer；Input transformer is distinguished Connect input reactance device and protection system, protection system acquisition input voltage and input zero-sequence current；Input reactance device and three-phase PWM rectifier is connected；Three-Phase PWM Rectifier is connected with Single-phase PWM Inverter, and Three-Phase PWM Rectifier and single-phase PWM are inverse Become device respectively with display system to be connected, Single-phase PWM Inverter is connected with LC output filters；Protect system acquisition output electricity Stream；Output transformer externally carries out voltage output.
- 2. Static Electro minor voltage-stabilized power supply according to claim 1, it is characterised in that：Also include bypass power supply module and side Road handover module, bypass power supply module are connected with input transformer, and bypass changeover module is arranged on LC output filters and defeated Go out between transformer, bypass power supply module and LC output filters are connected to bypass changeover module simultaneously, by bypass changeover module It is connected to output transformer.
- 3. Static Electro minor voltage-stabilized power supply according to claim 2, it is characterised in that：Set communication single in display system Member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720641088.4U CN207069918U (en) | 2017-06-05 | 2017-06-05 | Static Electro minor voltage-stabilized power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720641088.4U CN207069918U (en) | 2017-06-05 | 2017-06-05 | Static Electro minor voltage-stabilized power supply |
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| Publication Number | Publication Date |
|---|---|
| CN207069918U true CN207069918U (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720641088.4U Active CN207069918U (en) | 2017-06-05 | 2017-06-05 | Static Electro minor voltage-stabilized power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111077A (en) * | 2020-01-16 | 2020-05-08 | 北京紫光新锐科技发展有限公司 | Automatic fire-fighting inspection control equipment and method |
| CN113013867A (en) * | 2019-12-20 | 2021-06-22 | 合肥博微田村电气有限公司 | Three-phase balance transformer and three-phase power supply system |
-
2017
- 2017-06-05 CN CN201720641088.4U patent/CN207069918U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013867A (en) * | 2019-12-20 | 2021-06-22 | 合肥博微田村电气有限公司 | Three-phase balance transformer and three-phase power supply system |
| CN111111077A (en) * | 2020-01-16 | 2020-05-08 | 北京紫光新锐科技发展有限公司 | Automatic fire-fighting inspection control equipment and method |
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