CN108880288A - Three-phase alternating-current switch power supply device and system - Google Patents
Three-phase alternating-current switch power supply device and system Download PDFInfo
- Publication number
- CN108880288A CN108880288A CN201811053738.9A CN201811053738A CN108880288A CN 108880288 A CN108880288 A CN 108880288A CN 201811053738 A CN201811053738 A CN 201811053738A CN 108880288 A CN108880288 A CN 108880288A
- Authority
- CN
- China
- Prior art keywords
- circuit
- phase alternating
- output
- alternating current
- input voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 103
- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000009466 transformation Effects 0.000 claims abstract description 7
- 238000013519 translation Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 11
- 238000012937 correction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The present invention provides a kind of three-phase alternating-current switch power supply device and systems, wherein the device includes：Transformer primary side circuit, three-winding transformer, the first output rectification circuit, the second output rectification circuit, switching circuit, output filter circuit and control circuit；Transformer primary side circuit samples three-phase alternating current input voltage, and sampled result is transferred to control circuit；And input voltage is input to three-winding transformer；Transformation processing is carried out by three-winding transformer, treated input voltage by first or second output rectification circuit is transferred to output filter circuit；Control circuit receives sampled result, and compares sampled result and pre-set switching voltage, to control switching circuit working condition；By the connected state of switching circuit switching the first and second output rectification circuits and output filter circuit；Output filter circuit is to by first or second output rectification circuit, treated that voltage exports.The present invention improves the wide scope input characteristics of three-phase alternating-current switch power supply.
Description
Technical field
The present invention relates to technical field of electric power, more particularly, to a kind of three-phase alternating-current switch power supply device and system.
Background technique
In network system, relatively conventional failure includes singlephase earth fault and double earthfault etc., these are occurring
When failure, the voltage of three-phase alternating current will be greatly lowered, serious drop to normal voltage 40% or so, and three-phase alternating current
The input of the electric operation power high frequency switch power of input is derived from the three-phase alternating current of power grid, and too low three-phase alternating current will
So that the electric operation power that traditional three-phase alternating current inputs can not work normally with high-frequency switching power supply module.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of three-phase alternating-current switch power supply device and system, to improve three
The wide scope input characteristics of phase alternating-current switch power supply.
In a first aspect, the embodiment of the invention provides a kind of three-phase alternating-current switch power supply devices, wherein the device includes：
Transformer primary side circuit, three-winding transformer, the first output rectification circuit, the second output rectification circuit, switching circuit, output filter
Wave circuit and control circuit；Transformer primary side circuit is connect with three-winding transformer and control circuit respectively, the first output rectification
Circuit is connect with three-winding transformer and output filter circuit respectively, the second output rectification circuit respectively with three-winding transformer and
Switching circuit connection, switching circuit are also connect with control circuit and output filter circuit respectively；Transformer primary side circuit for pair
Three-phase alternating current input voltage is sampled, and sampled result is transferred to control circuit；It is also used to three-phase alternating current input voltage is defeated
Enter into three-winding transformer；Three-winding transformer is used to carry out transformation processing to three-phase alternating current input voltage, by treated
Three-phase alternating current input voltage is transferred to output filter circuit by the first output rectification circuit or the second output rectification circuit；Control
Circuit is used to receive the sampled result of three-phase alternating current input voltage, compares sampled result and pre-set switching voltage Vset,
The working condition of switching circuit is controlled according to comparison result；Switching circuit is for switching the first output rectification circuit and the second output
The connected state of rectification circuit and output filter circuit；Output filter circuit is used for by the first output rectification circuit or second
Treated that voltage is exported for output rectification circuit.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein becomes
Depressor primary circuit includes sequentially connected three-phase AC input circuit, three-phase alternating current input rectification circuit, PFC
Circuit, soft starting circuit, input filter circuit, DC/DC translation circuit further include three-phase alternating current input voltage sample circuit；Three
Phase AC-input voltage sample circuit is connect with three-phase AC input circuit and control circuit respectively；Three-phase AC input circuit is used
In providing three-phase alternating current input voltage for device；Three-phase alternating current input rectification circuit is for three-phase alternating current input voltage to be rectified into
Pulsating dc voltage is simultaneously transferred to circuit of power factor correction；Circuit of power factor correction be used to adjust the input power of device because
Number；Soft starting circuit is used for dash current of the limits device in start process；Input filter circuit is used for Rectified alternating current
Pressure is filtered into steady dc voltage, and is transferred to DC/DC translation circuit；DC/DC translation circuit is used for and three-winding transformer
Connection composition resonant tank；Three-phase alternating current input voltage sample circuit is used to sample three-phase alternating current input voltage, and will
Sampled result is transferred to control circuit.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein three
Winding transformer includes primary side winding, the first vice-side winding and the second vice-side winding；DC/DC translation circuit and primary side winding connect
It connects；First output rectification circuit and the second output rectification circuit are connect with the first vice-side winding and the second vice-side winding respectively；The
One vice-side winding and the winding quantity ratio of primary side winding are n1, and the winding quantity ratio of the second vice-side winding and primary side winding is
N2, wherein n2 is greater than n1.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein cuts
Changing circuit includes controllable switch, and one end of controllable switch connects the output end of the first output rectification circuit, controllable switch it is another
The output end of the second output rectification circuit of end connection；Control circuit is also used to switch the opening and closing of controllable switch, with control
The connected state of first output rectification circuit and the second output rectification circuit and output filter circuit.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein the range of the three-phase alternating current input voltage vin of the device is Vmin≤Vin≤Vmax；Vmin is
The minimum value of three-phase alternating current input voltage, Vmax are the maximum value of three-phase alternating current input voltage；When three-phase alternating current input voltage vin
When meeting Vset < Vin≤Vmax, control circuit control switching circuit controllable switch disconnect, the second output rectification circuit it is defeated
Outlet and output filter circuit disconnect；When three-phase alternating current input voltage vin meets Vmin≤Vin≤Vset, control circuit control
The controllable switch of switching circuit processed is connected to, and the output end of the second output rectification circuit is connect with output filter circuit；Switch voltage
Vset is the operation voltage of the preset control switching circuit of control circuit.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect
Possible embodiment, wherein voltage Vset is when three-phase alternating current input voltage vin meets Vset < Vin≤Vmax for switching, leads to
It crosses primary side winding and the first vice-side winding reaches the gain requirements of device；Meet Vmin≤Vin in three-phase alternating current input voltage vin
When≤Vset, the gain requirements of device are reached by primary side winding and the second vice-side winding.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein the
One output rectification circuit and the second output rectification circuit include can not control rectifying circuit.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 7th kind of first aspect
Possible embodiment, wherein controllable switch includes relay or switching tube.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 8th kind of first aspect
Possible embodiment, wherein the DC/DC translation circuit of transformer primary side circuit includes phase whole-bridging circuit or LLC circuit.
Second aspect, the embodiment of the invention also provides a kind of three-phase alternating-current switch power-supply systems, wherein the system includes
Three-phase alternating-current switch power supply device described in first aspect further includes the server connecting with three-phase alternating-current switch power supply device.
The embodiment of the present invention brings following beneficial effect：
The embodiment of the invention provides a kind of three-phase alternating-current switch power supply device and systems, including：Transformer primary side circuit,
Three-winding transformer, the first output rectification circuit, the second output rectification circuit, switching circuit, output filter circuit and control electricity
Road；Transformer primary side circuit samples three-phase alternating current input voltage, and sampled result is transferred to control circuit；And by input voltage
It is input in three-winding transformer；Transformation processing is carried out by three-winding transformer, will treated input voltage by first or
Second output rectification circuit is transferred to output filter circuit；Control circuit compares sampled result and pre- for receiving sampled result
The switching voltage Vset being first arranged, to control the working condition of switching circuit；It is whole by the first and second output of switching circuit switching
The connected state of current circuit and output filter circuit；Output filter circuit is to after the processing of first or second output rectification circuit
Voltage exported.The present invention improves the wide scope input characteristics of three-phase alternating-current switch power supply.
Other features and advantages of the present invention will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implementing above-mentioned technology of the invention it can be learnt that.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, better embodiment is cited below particularly, and match
Appended attached drawing is closed, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of three-phase alternating-current switch power supply device provided in an embodiment of the present invention；
Fig. 2 is a kind of circuit diagram of three-phase alternating-current switch power supply device provided in an embodiment of the present invention；
Fig. 3 is in another three-phase alternating-current switch power supply device provided in an embodiment of the present invention, transformer primary side circuit
Structural schematic diagram；
Fig. 4 is a kind of structural schematic diagram of three-phase alternating-current switch power-supply system provided in an embodiment of the present invention.
Icon：10- transformer primary side circuit；20- three-winding transformer；The first output rectification circuit of 30-；40- second is defeated
Rectification circuit out；50- switching circuit；60- output filter circuit；70- control circuit；101- three-phase AC input circuit；102-
Three-phase alternating current input rectification circuit；103- circuit of power factor correction；104- soft starting circuit；105- input filter circuit；
106-DC/DC translation circuit；107- three-phase alternating current input voltage sample circuit；80- three-phase alternating-current switch power supply device；90- clothes
Business device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
The electric operation power high frequency switch power input voltage model of most common three-phase alternating current input currently on the market
0.8~1.25 times for enclosing about voltage rating, this is far unable to satisfy job requirement when ground fault occurs for network system, is based on
This, a kind of three-phase alternating-current switch power supply device provided in an embodiment of the present invention and system can be applied to three characteristics of the middle term exchange input
Brownout and cause electric operation power to can not work normally with high frequency switch power electric power environmental in.
For convenient for understanding the present embodiment, first to a kind of electricity of three-phase alternating-current switch disclosed in the embodiment of the present invention
Source device describes in detail.
A kind of structural schematic diagram of three-phase alternating-current switch power supply device shown in Figure 1, which includes transformer primary
Side circuit 10, three-winding transformer 20, the first output rectification circuit 30, the second output rectification circuit 40, switching circuit 50, output
Filter circuit 60 and control circuit 70；
Transformer primary side circuit 10 is connect with three-winding transformer 20 and control circuit 70 respectively, the first output rectification circuit
30 connect with three-winding transformer 20 and output filter circuit 60 respectively, the second output rectification circuit 40 respectively with three winding transformation
Device 20 and switching circuit 50 connect, and switching circuit 50 is also connect with control circuit 70 and output filter circuit 60 respectively；
Transformer primary side circuit 10 is transferred to control electricity for sampling to three-phase alternating current input voltage, by sampled result
Road 70；It is also used to for three-phase alternating current input voltage being input in three-winding transformer 20；
Three-winding transformer 20 is used to carry out transformation processing to three-phase alternating current input voltage, and by treated, three-phase alternating current is defeated
Enter voltage and output filter circuit 60 is transferred to by the first output rectification circuit 30 or the second output rectification circuit 40；
Control circuit 70 is used to receive the sampled result of three-phase alternating current input voltage, compares sampled result and pre-set
Switch voltage Vset, the working condition of switching circuit 50 is controlled according to comparison result；
Switching circuit 50 is for switching the first output rectification circuit 30 and the second output rectification circuit 40 and output filtered electrical
The connected state on road 60；
Output filter circuit 60 is used for after the first output rectification circuit 30 or the processing of the second output rectification circuit 40
Voltage exported；
Above-mentioned control circuit 70 judges whether switching switching circuit according to three-phase alternating current input voltage sampled result, to change
The operating mode of three-winding transformer guarantees in the preset range of three-phase alternating current input voltage, three-phase alternating-current switch power supply dress
Setting can work normally.
The embodiment of the invention provides a kind of three-phase alternating-current switch power supply device, which includes：Transformer primary side circuit,
Three-winding transformer, the first output rectification circuit, the second output rectification circuit, switching circuit, output filter circuit and control electricity
Road；Transformer primary side circuit samples three-phase alternating current input voltage, and sampled result is transferred to control circuit；And by input voltage
It is input in three-winding transformer；Transformation processing is carried out by three-winding transformer, will treated input voltage by first or
Second output rectification circuit is transferred to output filter circuit；Control circuit compares sampled result and pre- for receiving sampled result
The switching voltage Vset being first arranged, to control the working condition of switching circuit；It is whole by the first and second output of switching circuit switching
The connected state of current circuit and output filter circuit；Output filter circuit is to after the processing of first or second output rectification circuit
Voltage exported.The embodiment of the present invention improves the wide scope input characteristics of three-phase alternating-current switch power supply.
The embodiment of the invention also provides another three-phase alternating-current switch power supply device, another kind three shown in Figure 2
In the circuit diagram of phase alternating-current switch power supply device and another three-phase alternating-current switch power supply device shown in Fig. 3, transformer primary side
The structural schematic diagram of circuit；It is realized on the basis of the three-phase alternating-current switch power supply device is shown in Fig. 1.
Firstly, as shown in figure 3, above-mentioned transformer primary side circuit 10 include sequentially connected three-phase AC input circuit 101,
Three-phase alternating current input rectification circuit 102, circuit of power factor correction 103, soft starting circuit 104, input filter circuit 105, DC/
DC translation circuit 106 further includes three-phase alternating current input voltage sample circuit 107；Three-phase alternating current input voltage sample circuit 107 divides
It is not connect with three-phase AC input circuit 101 and control circuit 70；
Above-mentioned three-phase AC input circuit 101 is used to provide three-phase alternating current input voltage for device；Above-mentioned three-phase alternating current is defeated
Entering rectification circuit 102 further includes three-phase rectification bridge B1, for three-phase alternating current input voltage to be rectified into pulsating dc voltage and is passed
It is defeated to arrive circuit of power factor correction 103；
Above-mentioned circuit of power factor correction 103 uses Passive PFC Rectifier Circuit, includes passive PFC inductance L1, for adjusting
The input power factor of device；Above-mentioned soft starting circuit 104 includes soft start resistance R1 and relay K1, wherein soft start resistance
R1 and relay K1 are connected in parallel, for dash current of the limits device in start process；
Above-mentioned input filter circuit 105 includes capacitor C1, for by the three-phase rectification bridge B1 of three-phase alternating current rectification circuit 102
The pulsating dc voltage of submitting is filtered into more steady dc voltage, to supply DC/DC translation circuit 106；Above-mentioned DC/DC becomes
Change circuit 106 include phase whole-bridging circuit or LLC circuit, by taking full-bridge LLC translation circuit as an example, mainly include switching tube Q1, Q2,
The bridge circuit of Q3, Q4 composition, resonant inductance L2 and resonant capacitance C2, wherein resonant inductance L2 and resonant capacitance C2 and three around
The group connection composition resonant tank of transformer 20；
Above-mentioned three-phase alternating current input voltage sample circuit 107 will be adopted for sampling to three-phase alternating current input voltage
Sample result is transferred to control circuit 70.
As shown in Fig. 2, above-mentioned three-winding transformer 20 include primary side winding P1, the first vice-side winding S1 and the second secondary side around
Group S2；Wherein, the resonant inductance L2 and resonant capacitance C2 of DC/DC translation circuit 106 connect composition resonance with primary side winding 201 and return
Road；First output rectification circuit 30 and the second output rectification circuit 40 respectively with the first vice-side winding 202 and the second vice-side winding
203 connections；First vice-side winding 202 and the winding quantity ratio of primary side winding 201 are n1, the second vice-side winding 203 and primary side
The winding quantity ratio of winding 201 is n2, wherein n2 is greater than n1, so that the DC voltage of the second output rectification circuit 40 output
Higher than the DC voltage of the first output rectification circuit 30 output.
Above-mentioned first output rectification circuit 30 and the second output rectification circuit 40 include can not control rectifying circuit, the first output
Rectification circuit 30 uses diode D1, D2, D3, the full bridge rectifier of D4 composition, and the second output rectification circuit 40 uses two poles
Pipe D5, D6, D7, the full bridge rectifier of D8 composition；Output filter circuit 60 includes capacitor C3, for exporting rectified current for first
The output on road 30 and the second output rectification circuit 40 is filtered into stable DC.
Above-mentioned switching circuit 50 includes controllable switch, and one end of controllable switch connects the output of the first output rectification circuit 30
End, the other end of controllable switch connect the output end of the second output rectification circuit 40.
As shown in Fig. 2, controllable switch includes relay K2 or switching tube, it is illustrated by taking relay K2 as an example, relay
K2 is open type, wherein the output positive and negative terminal of the first output rectification circuit 30 is positive and negative with the capacitor C3's of output filter circuit 60
End is directly correspondingly connected with；One end of the relay K2 of the output plus terminal and switching circuit 50 of second output rectification circuit 40 is connect,
The other end of the relay K2 of switching circuit 50 respectively with the output plus terminal of the first output rectification circuit 30 and output filtered electrical
The anode of the capacitor C3 on road 60 connects；The output negative terminal of second output rectification circuit 40 respectively with the first output rectification circuit 30
Output negative terminal is connected with the negative terminal of the capacitor C3 of output filter circuit 60.
Above-mentioned control circuit 70 is also used to switch the opening and closing of controllable switch, to control the first output rectification circuit 30
With the connected state of the second output rectification circuit 40 and output filter circuit 60.
The range of the three-phase alternating current input voltage vin of above-mentioned apparatus is Vmin≤Vin≤Vmax；Vmin is that three-phase alternating current is defeated
Enter the minimum value of voltage, Vmax is the maximum value of three-phase alternating current input voltage.
When three-phase alternating current input voltage vin meets Vset < Vin≤Vmax, control circuit 70 controls switching circuit 50
Controllable switch disconnects, and the output end and output filter circuit 60 of the second output rectification circuit 40 disconnect.
When three-phase alternating current input voltage vin meets Vmin≤Vin≤Vset, control circuit 70 controls switching circuit 50
Controllable switch connection, the output end of the second output rectification circuit 40 are connect with output filter circuit 60.
Switch the operation voltage that voltage Vset is the preset control switching circuit 50 of control circuit 70.
Above-mentioned switching voltage Vset when three-phase alternating current input voltage vin meets Vset < Vin≤Vmax, by primary side around
Group P1 and the first vice-side winding S1 reaches the gain requirements of device.
When three-phase alternating current input voltage vin meets Vmin≤Vin≤Vset, by the secondary side primary side winding P1 and second around
Group S2 reaches the gain requirements of device.
The embodiment of the present invention is described in detail foregoing invention embodiment each section, passes through the three of transformer primary side circuit
Phase ac input circuit provides three-phase alternating current input voltage for the three-phase alternating-current switch power supply device, and three-phase alternating current is inputted electricity
Pressure, to three-winding transformer, is adopted by transformer primary side circuit transmission by the three-phase alternating current input voltage of transformer primary side circuit
Sample circuit samples three-phase alternating current input voltage, and sampled result is transferred in control circuit, by control circuit to adopting
Sample result and the switching voltage Vest of pre-set equality circuit gain requirements are compared, and control switching electricity according to comparing result
The opening and closing of the controllable switch on road, by the opening and closing of controllable switch, controlling three-winding transformer is by first
Output rectification circuit is connected to output filter circuit or is connected to by the second output rectification circuit with output filter circuit, passes through
Controllable switch controls the operating mode of three-winding transformer, guarantees three-phase alternating current input voltage in default range, three intersect
Current switching power supply device can work normally, and improve the wide scope input characteristics of three-phase alternating-current switch power supply.
Corresponding to above-described embodiment, the embodiment of the present invention is inputted with the three-phase alternating current that three-phase alternating-current switch power supply device requires
Voltage range is 152VAC~437VAC (V：Volt, volt；AC：Alternating Current, alternating current；VAC is exchanged
The voltage value of electricity) for, in above-described embodiment, the operational process of three-phase alternating-current switch power supply device is described in detail.
Step (1), the ratio n1 that the first vice-side winding S1 and primary side winding P1 of three-winding transformer is arranged is 0.4, the
The ratio n2 of two vice-side winding S2 and primary side winding P1 is 0.8.
Step (2), the setting switching voltage value of controller 70 is 304VAC, when three-phase alternating current input voltage vin meets
When 304VAC < Vin≤437VAC, three can be met by the primary side winding P1 and the first vice-side winding S1 of three-winding transformer 20
The gain requirements of phase alternating-current switch power supply device；When three-phase alternating current input voltage vin meets 152VAC≤Vin≤304VAC,
The increasing of three-phase alternating-current switch power supply device can be met by the primary side winding P1 and the second vice-side winding S2 of three-winding transformer 20
Beneficial demand.
Step (3), 107 real-time detection three-phase alternating current input voltage value of three-phase alternating current input voltage sample circuit, and in real time
Send controller 70 to.
Step (4), when controller 70 detects that three-phase alternating current input voltage is in 304VAC < Vin≤437VAC, control
The relay K2 that circuit 70 processed controls switching circuit 50 is disconnected, and the power of three-phase alternating-current switch power supply device is by three-winding transformer
20 primary side winding P1 and the first vice-side winding S1 realizes transmitting, send after the first output rectification circuit 30 to output and filters
Circuit 60 is powered again for external loading, and the second vice-side winding S2 of three-winding transformer 20 and the second output rectification circuit 40 are empty
Carrying row；
When controller 70 detects that three-phase alternating current input voltage is in 152VAC≤Vin≤304VA, control circuit 70 is controlled
The relay K2 of switching circuit 50 processed is closed, since the output voltage of the second output rectification circuit 40 is higher than the first output rectified current
The output voltage on road 30, therefore the diode rectifier bridge of the first output rectification circuit 30 is in reverse blocking state, three-phase alternating current
The power of switching power unit realizes transmitting by the primary side winding P1 and the second vice-side winding S2 of three-winding transformer 20, by the
It is sent after two output rectification circuits 40 to output filter circuit 60 and is powered again for external loading, the first of three-winding transformer 20 is secondary
Side winding S1 and the equal idle running of the first output rectification circuit 30.
In above-mentioned entire control process, three-phase alternating-current switch power supply device three-phase alternating current input voltage be 152VAC~
Within the scope of 437VAC, it can guarantee that output is normal, reliably realize the wide scope input characteristics of Switching Power Supply.
The embodiment of the present invention elaborates to foregoing invention embodiment by enumerating specific data, embodies this hair
The wide scope input characteristics of three-phase alternating-current switch power supply can be improved by the device for bright exploitativeness, occur in power grid single
When mutually ground connection or double earthfault cause three-phase alternating current input voltage to be greatly lowered, three-phase can be made using the device
Alternating-current switch power supply is in the state of normal work.
Corresponding to above-mentioned apparatus embodiment, the embodiment of the invention also provides a kind of three-phase alternating-current switch power-supply systems, such as
The structural schematic diagram of system shown in Fig. 4, the system include three-phase alternating-current switch power supply device 80, further include opening with three-phase alternating current
The server 90 of powered-down source device connection.
Above-mentioned server can be local server (such as computer), or cloud server；The server is also
It can be the terminal device with data statistics function, such as mobile phone, tablet computer can be to multiple three-phase alternating-current switch power supplys
The working condition of device is monitored, and is controlled convenient for user three-phase alternating-current switch power supply device, is also convenient for later maintenance
Management.
Three-phase alternating-current switch power-supply system provided in an embodiment of the present invention, is opened with three-phase alternating current provided by the above embodiment
Powered-down source device technical characteristic having the same reaches identical technical effect so also can solve identical technical problem.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", "left", "right",
"vertical", "horizontal", "inner", "outside" etc., the orientation or positional relationship of instruction are that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, such as there is art
Language " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace such as occur
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, and the essence of its corresponding technical solution is not made to be detached from various embodiments of the present invention skill
The range of art scheme.
Claims (10)
1. a kind of three-phase alternating-current switch power supply device, which is characterized in that including：Transformer primary side circuit, three-winding transformer,
One output rectification circuit, the second output rectification circuit, switching circuit, output filter circuit and control circuit；
The transformer primary side circuit is connect with the three-winding transformer and the control circuit respectively, and first output is whole
Current circuit is connect with the three-winding transformer and the output filter circuit respectively, second output rectification circuit respectively with
The three-winding transformer is connected with the switching circuit, the switching circuit also respectively with the control circuit and the output
Filter circuit connection；
Sampled result is transferred to the control for sampling to three-phase alternating current input voltage by the transformer primary side circuit
Circuit；It is also used to for the three-phase alternating current input voltage being input in the three-winding transformer；
The three-winding transformer is used to carry out transformation processing to the three-phase alternating current input voltage, will treated three-phase alternating current
Input voltage is transferred to the output filter circuit by first output rectification circuit or second output rectification circuit；
The control circuit is used to receive the sampled result of the three-phase alternating current input voltage, the sampled result and in advance
The switching voltage Vset of setting, the working condition of the switching circuit is controlled according to comparison result；
The switching circuit is for switching first output rectification circuit and second output rectification circuit and the output
The connected state of filter circuit；
The output filter circuit is used to handle by first output rectification circuit or second output rectification circuit
Voltage afterwards is exported.
2. the apparatus according to claim 1, which is characterized in that the transformer primary side circuit includes sequentially connected three-phase
Ac input circuit, three-phase alternating current input rectification circuit, circuit of power factor correction, soft starting circuit, input filter circuit,
DC/DC translation circuit further includes three-phase alternating current input voltage sample circuit；The three-phase alternating current input voltage sample circuit difference
It is connect with the three-phase AC input circuit and the control circuit；
The three-phase AC input circuit is used to provide the three-phase alternating current input voltage for described device；
The three-phase alternating current input rectification circuit is for being rectified into pulsating dc voltage for the three-phase alternating current input voltage and passing
It is defeated to arrive the circuit of power factor correction；
The circuit of power factor correction is used to adjust the input power factor of described device；
The soft starting circuit is for limiting dash current of the described device in start process；
The input filter circuit is used to the pulsating dc voltage being filtered into steady dc voltage, and is transferred to described
DC/DC translation circuit；
The DC/DC translation circuit is for connecting composition resonant tank with the three-winding transformer；
The three-phase alternating current input voltage sample circuit is adopted for sampling to the three-phase alternating current input voltage by described
Sample result is transferred to the control circuit.
3. the apparatus according to claim 1, which is characterized in that the three-winding transformer includes primary side winding, the first pair
Side winding and the second vice-side winding；
The DC/DC translation circuit is connect with the primary side winding；First output rectification circuit and the second output rectified current
Road is connect with first vice-side winding and second vice-side winding respectively；
First vice-side winding and the winding quantity ratio of the primary side winding are n1, second vice-side winding and the original
The winding quantity ratio of side winding is n2, wherein n2 is greater than n1.
4. the apparatus according to claim 1, which is characterized in that the switching circuit includes controllable switch, described controllably to open
One end of pass connects the output end of first output rectification circuit, the other end connection of the controllable switch second output
The output end of rectification circuit；
The control circuit is also used to switch the opening and closing of the controllable switch, to control first output rectification circuit
With the connected state of second output rectification circuit and the output filter circuit.
5. device according to claim 4, which is characterized in that the range of the three-phase alternating current input voltage vin of described device
For Vmin≤Vin≤Vmax；Vmin is the minimum value of the three-phase alternating current input voltage, and Vmax is three-phase alternating current input electricity
The maximum value of pressure；
When the three-phase alternating current input voltage vin meets Vset < Vin≤Vmax, the control circuit controls the switching electricity
The controllable switch on road disconnects, and the output end and the output filter circuit of second output rectification circuit disconnect；
When the three-phase alternating current input voltage vin meets Vmin≤Vin≤Vset, the control circuit controls the switching electricity
The controllable switch on road is connected to, and the output end of second output rectification circuit is connect with the output filter circuit；
The switching voltage Vset is the operation voltage of the preset control switching circuit of the control circuit.
6. device according to claim 5, which is characterized in that the switching voltage Vset inputs electricity in the three-phase alternating current
When pressure Vin meets Vset < Vin≤Vmax, the increasing of described device is reached by the primary side winding and first vice-side winding
Beneficial demand；
When the three-phase alternating current input voltage vin meets Vmin≤Vin≤Vset, pass through the primary side winding and described second
Vice-side winding reaches the gain requirements of described device.
7. the apparatus according to claim 1, which is characterized in that first output rectification circuit and second output are whole
Current circuit includes can not control rectifying circuit.
8. device according to claim 4, which is characterized in that the controllable switch includes relay or switching tube.
9. device according to claim 4, which is characterized in that the DC/DC translation circuit packet of the transformer primary side circuit
Include phase whole-bridging circuit or LLC circuit.
10. a kind of three-phase alternating-current switch power-supply system, which is characterized in that the system comprises described in claim any one of 1-9
Three-phase alternating-current switch power supply device, further include the server being connect with the three-phase alternating-current switch power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053738.9A CN108880288B (en) | 2018-09-10 | 2018-09-10 | Three-phase alternating current switching power supply device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053738.9A CN108880288B (en) | 2018-09-10 | 2018-09-10 | Three-phase alternating current switching power supply device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108880288A true CN108880288A (en) | 2018-11-23 |
| CN108880288B CN108880288B (en) | 2024-01-12 |
Family
ID=64323637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811053738.9A Active CN108880288B (en) | 2018-09-10 | 2018-09-10 | Three-phase alternating current switching power supply device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108880288B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113179012A (en) * | 2021-03-16 | 2021-07-27 | 天地（常州）自动化股份有限公司 | DC voltage-stabilized source suitable for mining multistage AC voltage input |
| CN114172359A (en) * | 2021-12-06 | 2022-03-11 | 固赢科技(深圳)有限公司 | Isolation circuit based on MOS (Metal oxide semiconductor) tube soft start and soft start control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812359A (en) * | 2014-01-16 | 2014-05-21 | 深圳市保益新能电气有限公司 | Alternating current-direct current converting circuit and control method thereof |
| CN105162331A (en) * | 2015-08-24 | 2015-12-16 | 中国石油集团渤海钻探工程有限公司 | Paralleled current sharing technology-based switching power supply circuit |
| CN204993069U (en) * | 2015-08-24 | 2016-01-20 | 中国石油集团渤海钻探工程有限公司 | Switching power supply circuit based on parallelly connected technique of flow equalizing |
| CN105553287A (en) * | 2015-12-18 | 2016-05-04 | 中国航空工业集团公司北京航空制造工程研究所 | Bias power supply device and electron beam current adjusting method therefor |
| CN106862726A (en) * | 2017-03-17 | 2017-06-20 | 华中科技大学 | A kind of welding integrated power supply |
-
2018
- 2018-09-10 CN CN201811053738.9A patent/CN108880288B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812359A (en) * | 2014-01-16 | 2014-05-21 | 深圳市保益新能电气有限公司 | Alternating current-direct current converting circuit and control method thereof |
| CN105162331A (en) * | 2015-08-24 | 2015-12-16 | 中国石油集团渤海钻探工程有限公司 | Paralleled current sharing technology-based switching power supply circuit |
| CN204993069U (en) * | 2015-08-24 | 2016-01-20 | 中国石油集团渤海钻探工程有限公司 | Switching power supply circuit based on parallelly connected technique of flow equalizing |
| CN105553287A (en) * | 2015-12-18 | 2016-05-04 | 中国航空工业集团公司北京航空制造工程研究所 | Bias power supply device and electron beam current adjusting method therefor |
| CN106862726A (en) * | 2017-03-17 | 2017-06-20 | 华中科技大学 | A kind of welding integrated power supply |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113179012A (en) * | 2021-03-16 | 2021-07-27 | 天地（常州）自动化股份有限公司 | DC voltage-stabilized source suitable for mining multistage AC voltage input |
| CN114172359A (en) * | 2021-12-06 | 2022-03-11 | 固赢科技(深圳)有限公司 | Isolation circuit based on MOS (Metal oxide semiconductor) tube soft start and soft start control method |
| CN114172359B (en) * | 2021-12-06 | 2024-04-12 | 固赢科技(深圳)有限公司 | Isolation circuit based on MOS tube soft start and soft start control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108880288B (en) | 2024-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107681636A (en) | A kind of overvoltage crowbar and Switching Power Supply | |
| CN110138231A (en) | Drive control circuit and its control method, driving control system, air conditioner | |
| CN106786886A (en) | A kind of wireless charging system charging method based on remained capacity technology | |
| CN108880288A (en) | Three-phase alternating-current switch power supply device and system | |
| CN102694477B (en) | High-voltage alternating current power supply, low-voltage alternating current power supply and low-voltage direct current power supply common-base circuit | |
| CN203445788U (en) | Power supply apparatus applied to hemodialysis machine | |
| CN106253462A (en) | There is the improvement ups system of filter function | |
| CN201097176Y (en) | Power controller | |
| CN105915068A (en) | De-dusting power supply control method, apparatus and system | |
| CN205945075U (en) | Uninterrupted power source with reactive compensation and active power filter function | |
| CN108768190A (en) | Circuit, high frequency switch power with wide input voltage range, control method | |
| CN110635691B (en) | Current source module | |
| CN209250512U (en) | Three-phase alternating-current switch power supply device and system | |
| CN107959458A (en) | Dc bus low capacity capacitance frequency conversion control circuit and frequency conversion equipment | |
| CN208353235U (en) | Circuit, high frequency switch power with wide input voltage range | |
| CN209247896U (en) | A kind of distribution system simulation test device | |
| CN204030975U (en) | Single-phase and automatic three-phase switching high voltage source | |
| CN101707392B (en) | Alternating and direct current isolation control method of uninterruptible power supply and circuit | |
| CN207069918U (en) | Static Electro minor voltage-stabilized power supply | |
| CN102820655B (en) | A kind of power electronic system control method taking into account voltage support and failure current limit | |
| CN208028771U (en) | The power switch circuit of vulnerabilities scan forceful electric power | |
| CN207518501U (en) | Dc bus low capacity capacitance frequency conversion control circuit and frequency conversion equipment | |
| CN202797977U (en) | Power electronic system combining voltage support with fault current limiting | |
| CN202663316U (en) | Circuit with three common-grounded power supplies of high voltage alternating current, low voltage alternating current and low voltage direct current | |
| US20220320884A1 (en) | Bidirectional portable energy storage power supply without adapter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |