CN105932893A - Multi-pulse rectifier substation system for electric vehicle direct current charging station - Google Patents
Multi-pulse rectifier substation system for electric vehicle direct current charging station Download PDFInfo
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- CN105932893A CN105932893A CN201610475640.7A CN201610475640A CN105932893A CN 105932893 A CN105932893 A CN 105932893A CN 201610475640 A CN201610475640 A CN 201610475640A CN 105932893 A CN105932893 A CN 105932893A
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- 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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/11—DC charging controlled by the charging station, e.g. mode 4
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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- 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
- H02M1/12—Arrangements for reducing harmonics from ac input or output
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/30—AC to DC converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses a multi-pulse rectifier substation system for an electric vehicle direct current charging station, and belongs to the technical field of multi-pulse rectification. The system comprises a multi-pulse transformer used for performing conversion and harmonic filter processing on an alternating current, and rectifying circuits with the same number as secondary windings of the multi-pulse transformer, wherein ends of the same polarity of each rectifying circuit, after being connected, are led out, thereby providing electric energy for electric vehicle charging equipment via a direct current bus. The multi-pulse rectifier substation system for the electric vehicle direct current charging station provided by the invention integrates transformer, filtering and rectification functional systems, and uses a principle of electromagnetic filtering to effectively filter 3rd, 5th, 7th 11th, 13th, 17th and 19th harmonic waves generated by an electric vehicle direct current charging device, which greatly improves the influence of a secondary harmonic current on a primary power grid, and improves the power factor of the electric vehicle direct current charging station.
Description
Technical field
The invention discloses the multi-pulse rectification transformer substation system for electric automobile DC charging station, belong to multi-pulse rectification
Technical field.
Background technology
Electric automobile charging station is kind of a non-linear equipment, and work time-harmonic wave electric current is the highest, higher harmonic current input electrical network meeting
Cause the negative effects such as quality of power supply reduction, be a kind of pollution to utility network.One large-scale charging station has the most such
Charger, in order to eliminate and suppress harmonic pollution, it is necessary to administer the harmonic pollution of large-scale charging station.
Electric automobile battery charger operation principle mainly has three kinds: uncontrollable rectifier+chopper；Uncontrollable rectifier+DC/DC changer
(having high frequency transformer)；PWM rectification+DC/DC changer (having high frequency transformer).First kind charger belongs to early production, right
The harmonic current that electrical network injects is big, and 5 subharmonic current containing ratios are 60% ~ 69%, and 7 subharmonic current containing ratios are 40% ~ 49%,
11, being for 13 times 10% ~ 13%, electric current resultant distortion rate reaches 86.2%.Equations of The Second Kind charger is by Industrial Frequency Transformer, three-phase uncontrollable rectifier, height
Frequency power transformer isolation DC/DC changer composition, the improvement bigger than the first kind of Equations of The Second Kind charger, but electric current resultant distortion rate is
26%, odd harmonic electric current is the biggest, particularly 5,7,11,13 subharmonic are much larger than the regulation of concerned countries standard.3rd class
Charger is made up of three-phase PWM rectification, high frequency transformer and isolation DC/DC changer, and rectification side uses PWM technology, advantage body
Now power factor is high, grid side current harmonics is less, but circuit for charging machine and control relative complex, relatively costly.
In the current design concentrating high-power electric automobile charging system actual, the general structure used is that 10KV high pressure is defeated
Enter, be depressured to 380V three-phase alternating voltage system by high voltage isolating transformer, then by distribution system, alternating current be linked into
AC/DC charging module, wherein AC/DC charging module is generally two-layer configuration, the DC/DC transformer configuration of PFC rectification and isolation.
This centralized charging system module design is independent circuits due to the pfc circuit of each module, and each module all has
Having a set of pfc circuit, objectively cause circuit complexity to increase, owing to pfc circuit have employed high-frequency PWM control, it is in input
Side has bigger input differential mode and common mode disturbances, simultaneously as each module is independent, the functional circuit of input side is complex.
The pulse number increasing charger fairing can effectively reduce the characteristic harmonics that fairing produces, and reduces harmonic wave
Containing ratio, thus reduce total harmonic distortion.The harmonic wave composition produced in view of charger and each harmonic components proportion, profit
Filter scheme with what many pulse wave transformers em filtering principle realized charger harmonic current, be technically feasible, economically
Also it is rational.
Patent " a kind of 12 pulse wave self coupling phase-shifting rectifier transformers " (Application No. 201410577727.6) discloses one
Power transformer based on em filtering principle, but limited by autotransformer range of capacity, this self coupling phase-shifting commutation becomes
Depressor is difficult to meet the construction requirements of DC electric car charging station.Additionally, existing many pulse wave transformers structure is fixed, it is impossible to full
Foot meets the multifarious requirement of harmonic characteristic.
Summary of the invention
The technical problem to be solved is the deficiency for above-mentioned background technology, it is provided that straight for electric automobile
The multi-pulse rectification transformer substation system at current charge station, is integrated in transformation, filtering, rectification function in same system, utilizes electromagnetism to filter
Ripple principle effectively filters out 3 times and 5,7,11,13,17,19 subharmonic that electric automobile DC charging device produces, and solves existing
Centralized charging system for electric automobile input side functional circuit is complicated, be difficult to meet the skill of DC electric car charging station construction requirements
Art problem.
The present invention adopts the following technical scheme that for achieving the above object
For the multi-pulse rectification transformer substation system at electric automobile DC charging station, after the electric energy of three phase network is converted to unidirectional current
Importing dc bus, dc bus is powered to connected charging equipment of electric automobile, and multi-pulse rectification transformer substation system includes:
Alternating current is converted and harmonic filtration process many pulse wave transformers and with many pulse wave transformers secondary side winding number
Identical rectification circuit, the first side winding of described many pulse wave transformers is connected with three phase network, many pulse wave transformers secondary side
Each winding only input with a rectification circuit be connected, the lead-out terminal of each rectification circuit identical polar and after connecing with identical
The dc bus of polarity connects.
Further, described in the multi-pulse rectification transformer substation system at electric automobile DC charging station, many pulse waves transformation
Device is that output voltage amplitude is equal and phase angle differs 18 pulse wave transformers of 20 degree.
Further, described in the multi-pulse rectification transformer substation system at electric automobile DC charging station, many pulse waves transformation
Device is that output voltage amplitude is equal and phase angle differs 24 pulse wave transformers of 15 degree.
Further, described in the multi-pulse rectification transformer substation system at electric automobile DC charging station, 18 pulse waves become
The three phases winding at primary side triangle of depressor connects, and the secondary side winding of 18 pulse wave transformers includes: move to left extend-triangle around
Group, delta windings and move to right extend-triangle winding, move to left extend-triangle winding output voltage advanced triangle clockwise
The electrical angle that winding output voltage is 20 °, moves to right extend-triangle winding output voltage clockwise hysteresis delta windings output electricity
Press the electrical angle of 20 °.
Further, described in the multi-pulse rectification transformer substation system at electric automobile DC charging station, 18 pulse waves become
The three phases winding at primary side Y-connection of depressor, the secondary side winding of 18 pulse wave transformers includes: move to left extend-triangle winding,
Delta windings and move to right extend-triangle winding, moves to left extend-triangle winding output voltage advanced delta windings clockwise
The electrical angle that output voltage is 20 °, moves to right extend-triangle winding output voltage clockwise hysteresis delta windings output voltage 20 °
Electrical angle.
Further, described in the multi-pulse rectification transformer substation system at electric automobile DC charging station, 24 pulse waves become
The three phases winding at primary side triangle of depressor connects, and the secondary side winding of 24 pulse wave transformers includes: moves to left 22.5 ° and prolongs limit triangle
Shape winding, move to left 7.5 ° of extend-triangle windings, move to right 7.5 ° of extend-triangle windings and move to right 22.5 ° of extend-triangles around
Group, moves to left 7.5 ° of extend-triangle winding output voltage clockwise hysteresises and moves to left 22.5 ° of extend-triangle winding output voltages 15 °
Electrical angle, move to right 7.5 ° of extend-triangle winding output voltage clockwise hysteresises and move to left 7.5 ° of extend-triangle windings output electricity
Press the electrical angle of 15 °, move to right 22.5 ° of extend-triangle winding output voltage clockwise hysteresises and move to right 7.5 ° of extend-triangle windings
The electrical angle that output voltage is 15 °.
Further, described in the multi-pulse rectification transformer substation system at electric automobile DC charging station, 24 pulse waves become
The three phases winding at primary side Y-connection of depressor, the secondary side winding of 24 pulse wave transformers includes: move to left 22.5 ° of extend-triangles
Winding, move to left 7.5 ° of extend-triangle windings, move to right 7.5 ° of extend-triangle windings and move to right 22.5 ° of extend-triangle windings,
Move to left 7.5 ° of extend-triangle winding output voltage clockwise hysteresises and move to left 22.5 ° of extend-triangle winding output voltages 15 °
Electrical angle, moves to right 7.5 ° of extend-triangle winding output voltage clockwise hysteresises and moves to left 7.5 ° of extend-triangle winding output voltages
The electrical angle of 15 °, moving to right 22.5 ° of extend-triangle winding output voltage clockwise hysteresises, to move to right 7.5 ° of extend-triangle windings defeated
Go out the electrical angle of voltage 15 °.
The present invention uses technique scheme, has the advantages that and utilizes many pulse wave transformers to realize alternating current
Transformation and Filtering Processing function, comprise the integrated transformation of transformer substation system of many pulse wave transformers and rectification circuit, filtering, rectification merit
The filtering ring layout in Traditional DC charging pile circuit can be simplified in one, improves system reliability of operation；Utilize
Em filtering principle effectively filters out 3 times and 5,7,11,13,17,19 subharmonic that electric automobile DC charging device produces, greatly
Improve the impact that its primary side electrical network is caused by secondary side harmonic current, improve the power at electric automobile DC charging station because of
Element, the transformator of multiple pulse wave design disclosure satisfy that Load harmonic feature request.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multi-pulse rectification transformer substation system comprising the many pulse wave transformers of D/dy type；
Fig. 2 is D/dy type many pulse wave transformers first and second side voltage vector diagram of the present invention；
Fig. 3 is the structural representation of the multi-pulse rectification transformer substation system comprising the many pulse wave transformers of Y/dy type；
Fig. 4 is Y/dy type many pulse wave transformers first and second side voltage vector diagram of the present invention；
Fig. 5 is to comprise D/ The structural representation of the multi-pulse rectification transformer substation system of the many pulse wave transformers of type；
Fig. 6 is the D/ of the present invention Type many pulse wave transformers first and second side voltage vector diagram；
Fig. 7 is to comprise Y/ The structural representation of the multi-pulse rectification transformer substation system of the many pulse wave transformers of type；
Fig. 8 is the Y/ of the present invention Type many pulse wave transformers first and second side voltage vector diagram；
Fig. 9 is to comprise D/dThe structural representation of the multi-pulse rectification transformer substation system of the many pulse wave transformers of type；
Figure 10 is the D/ of the present inventiondType many pulse wave transformers first and second side voltage vector diagram；
Figure 11 is to comprise Y/dThe structural representation of the multi-pulse rectification transformer substation system of the many pulse wave transformers of type；
Figure 12 is the Y/ of the present inventiondType many pulse wave transformers first and second side voltage vector diagram；
Figure 13 is to comprise D/ The structural representation of the multi-pulse rectification transformer substation system of the many pulse wave transformers of type；
Figure 14 is the D/ of the present invention Type many pulse wave transformers first and second side voltage vector diagram；
Figure 15 is to comprise Y/ The structural representation of the multi-pulse rectification transformer substation system of the many pulse wave transformers of type；
Figure 16 is the Y/ of the present invention Type many pulse wave transformers first and second side voltage vector diagram；
Figure 17 is the block diagram of the multi-pulse rectification transformer substation system that the present invention relates to.
Label declaration in figure: 1 is many pulse wave transformers, 2 is rectification circuit, and 11 is the many pulse wave transformers of D/dy type, and 12 are
The many pulse wave transformers of Y/dy type, 13 is D/ The many pulse wave transformers of type, 14 is Y/ The many pulse wave transformers of type, 15 are
D/dThe many pulse wave transformers of type, 16 is Y/dThe many pulse wave transformers of type, 17 is D/ The many arteries and veins of type
Wave transformer, 18 is Y/ The many pulse wave transformers of type, 111,113,123,131,151,153,163,171 are
Delta windings, 112,121,122,141,161,181 is star winding, and 132,142,152,162 for moving to left extend-triangle
Winding, 133,143,154,164 for moving to right extend-triangle winding, and 172,182 for moving to left 22.5 ° of extend-triangle windings,
173,183 for moving to left 7.5 ° of extend-triangle windings, and 174,184 for moving to right 7.5 ° of extend-triangle windings, and 175,185 for moving to right
22.5 ° of extend-triangle windings.
Detailed description of the invention
Being described in detail the technical scheme of invention below in conjunction with the accompanying drawings, the present embodiment with technical solution of the present invention is being
Implement under premise, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to
Following embodiment.
The multi-pulse rectification transformer substation system that the present invention relates to as shown in figure 17, including: alternating current is converted and harmonic wave
Filter process many pulse wave transformers 1 and with many pulse wave transformer 1 the same number of rectification circuits of secondary side winding 2, described
The first side winding of many pulse wave transformers 1 is connected with three phase network, and each winding of many pulse wave transformer 1 secondary sides is only whole with one
The input of current circuit 2 connects, the lead-out terminal of each rectification circuit 2 identical polar and after connecing with the dc bus company of identical polar
Connect.The electric energy of three phase network is converted to import after unidirectional current dc bus by multi-pulse rectification transformer substation system, dc bus to
Its charging equipment of electric automobile connected is powered.
Specific embodiment one, uses output voltage amplitude equal and 12 pulse wave transformers of phase angle difference 30 degree realize power transformation
System, system can filter the harmonic wave of less than 11 times.
As it is shown in figure 1, the multi-pulse rectification transformer substation system of the present embodiment is by the many pulse wave transformers of D/dy type 11 and rectified current
Road 2 forms, and D/dy type many pulse wave transformers three phases winding at primary side is delta windings 111；The many pulse wave transformers of D/dy type two
Secondary side includes: delta windings 113 and star winding 112.Two groups of winding output voltages of secondary side are equal in magnitude and phase angle differs
30 degree, D/dy type many pulse wave transformers first and second side voltage vector diagram is as shown in Figure 2.Two groups of winding outfans of secondary side are respectively
Being connected with two groups of rectification circuit 2 inputs, two groups of rectification circuit homopolar ends are drawn after being connected and pass through dc bus with electronic
Vehicle charging equipment is connected.
As it is shown on figure 3, the multi-pulse rectification transformer substation system of the present embodiment is by the many pulse wave transformers of Y/dy type 12 and rectified current
Road 2 forms, and Y/dy type many pulse wave transformers three phases winding at primary side is star winding 121；Y/dy type many pulse wave transformers secondary
Side includes: delta windings 123 and star winding 122.Two groups of winding output voltages of secondary side are equal in magnitude and voltage phase angle phase
Differing from 30 degree, Y/dy type many pulse wave transformers first and second side voltage vector diagram is as shown in Figure 4.Two groups of winding outfans of secondary side divide
Not being connected with two groups of rectification circuit 2 inputs, two groups of rectification circuit homopolar ends are drawn after being connected and pass through dc bus and electricity
Electrical automobile charger is connected.
As it is shown in figure 5, the multi-pulse rectification transformer substation system of the present embodiment is by D/ The many pulse wave transformers of type 13 and rectification
Circuit 2 forms, D/ Type many pulse wave transformers three phases winding at primary side is delta windings 131；D/ The many pulse waves of type
Circuit Fault on Secondary Transformer includes: moves to left extend-triangle winding 132 and moves to right extend-triangle winding 133.Two groups of windings of secondary side
Output voltage is equal in magnitude and voltage phase angle differs 30 degree, D/ Type many pulse wave transformers first and second side voltage vector such as figure
Shown in 6.Two groups of winding outfans of secondary side are connected with two groups of rectification circuit 2 inputs respectively, two groups of rectification circuit homopolar ends
Draw after Xiang Lianing and pass through dc bus and be connected with charging equipment of electric automobile.
As it is shown in fig. 7, the multi-pulse rectification transformer substation system of the present embodiment is by Y/ The many pulse wave transformers of type 14 and rectification
Circuit 2 forms, Y/ Type many pulse wave transformers three phases winding at primary side is star winding 141；Y/ The many pulse waves of type become
Depressor secondary side includes: moves to left extend-triangle winding 142 and moves to right extend-triangle winding 143.Two groups of windings of secondary side are defeated
Go out that voltage swing is equal and voltage phase angle differs 30 degree, Y/ Type many pulse wave transformers first and second side voltage vector such as Fig. 8
Shown in.Two groups of winding outfans of secondary side are connected with two groups of rectification circuit 2 inputs respectively, two groups of rectification circuit homopolar end phases
Draw after Lian and pass through dc bus and be connected with charging equipment of electric automobile.
Specific embodiment two, uses output voltage amplitude equal and 18 pulse wave transformers of phase angle difference 20 degree realize power transformation
System, system can filter the harmonic wave of less than 17 times.
As it is shown in figure 9, the multi-pulse rectification transformer substation system of the present embodiment is by D/dMany pulse wave transformers of type 15 and whole
Current circuit 2 forms, D/dType many pulse wave transformers three phases winding at primary side is delta windings 151；D/dType is many
Pulse wave transformer secondary side includes: moves to left extend-triangle winding 152, delta windings 153 and moves to right extend-triangle winding
154.. three groups of winding output voltages of secondary side are equal in magnitude, move to left extend-triangle winding 152 output voltage the most advanced three
20 ° of electrical angles of dihedral winding 153 output voltage, move to right extend-triangle winding 154 output voltage clockwise hysteresis triangle around
Organize 20 ° of electrical angles of 153 output voltage, D/dType many pulse wave transformers first and second side voltage vector is as shown in Figure 10.Secondary
Three groups, side winding outfan is connected with three groups of rectification circuit 2 inputs respectively, and three groups of rectification circuit homopolar ends are drawn after being connected
And be connected with charging equipment of electric automobile by dc bus.
As shown in figure 11, the multi-pulse rectification transformer substation system of the present embodiment is by Y/dMany pulse wave transformers of type 16 and whole
Current circuit 2 forms, Y/dType many pulse wave transformers three phases winding at primary side is star winding 161, Y/dThe many arteries and veins of type
Wave transformer secondary side includes: moves to left extend-triangle winding 162, delta windings 163 and moves to right extend-triangle winding
164.Three groups of winding output voltages of secondary side are equal in magnitude, move to left extend-triangle winding 162 output voltage the most advanced three
20 ° of electrical angles of dihedral winding 163 output voltage, move to right extend-triangle winding 164 output voltage clockwise hysteresis triangle around
Organize 20 ° of electrical angles Y/ of 163 output voltagedType many pulse wave transformers first and second side voltage vector is as shown in figure 12.Secondary
Three groups, side winding outfan is connected with three groups of rectification circuit 2 inputs respectively, and three groups of rectification circuit homopolar ends are drawn after being connected
And be connected with charging equipment of electric automobile by dc bus.
Specific embodiment three, uses output voltage amplitude equal and 24 pulse wave transformers of phase angle difference 15 degree realize power transformation
System, system can filter the harmonic wave of less than 23 times.
As shown in figure 13, the multi-pulse rectification transformer substation system of the present embodiment is by D/ Type many pulse waves transformation
Device 17 and rectification circuit 2 form, D/ Type many pulse wave transformers three phases winding at primary side is delta windings
171, D/ Type many pulse wave transformers secondary side includes: moves to left 22.5 ° of extend-triangle windings 172, move to left
7.5 ° of extend-triangle windings 173, move to right 7.5 ° of extend-triangle windings 174 and move to right 22.5 ° of extend-triangle windings 175.
Four groups of winding output voltages of secondary side are equal in magnitude and differ 15 ° of electrical angles successively；D/ Type many pulse waves transformation
Device first and second side voltage vector is as shown in figure 14.Four groups of winding outfans of secondary side are respectively with four groups of rectification circuit 2 inputs even
Connecing, four groups of rectification circuit homopolar ends are drawn and are passed through dc bus after being connected and are connected with charging equipment of electric automobile.
As shown in figure 15, the multi-pulse rectification transformer substation system of the present embodiment is by Y/ Type many pulse waves transformation
Device 18 and rectification circuit 2 form, Y/ Type many pulse wave transformers three phases winding at primary side is star winding 181,
Y/ Type many pulse wave transformers secondary side includes: moves to left 22.5 ° of extend-triangle windings 182, move to left 7.5 ° and prolong
Limit delta windings 183, move to right 7.5 ° of extend-triangle windings 184 and move to right 22.5 ° of extend-triangle windings 185.Secondary side
Four groups of winding output voltages are equal in magnitude and 15 ° of electrical angles of difference, Y/ successively The many pulse wave transformers of type one,
Secondary side voltage vector is as shown in figure 16.Four groups of winding outfans of secondary side are connected with four groups of rectification circuit 2 inputs respectively, and four
Group rectification circuit homopolar end is drawn and is passed through dc bus after being connected and is connected with charging equipment of electric automobile.
Claims (7)
1., for the multi-pulse rectification transformer substation system at electric automobile DC charging station, the electric energy of three phase network is converted to unidirectional current
Rear remittance dc bus, dc bus is powered to connected charging equipment of electric automobile, it is characterised in that multi-pulse rectification
Transformer substation system includes: alternating current is converted and harmonic filtration process many pulse wave transformers (1) and with many pulse waves transformation
The same number of rectification circuit of device (1) secondary side winding (2), the first side winding of described many pulse wave transformers (1) and three-phase electricity
Net connects, and each winding of many pulse wave transformers (1) secondary side only input with a rectification circuit (2) is connected, each rectified current
The lead-out terminal of road (2) identical polar is also connected with the dc bus of identical polar after connecing.
The most according to claim 1 for the multi-pulse rectification transformer substation system at electric automobile DC charging station, it is characterised in that
Described many pulse wave transformers (1) are that output voltage amplitude is equal and phase angle differs 18 pulse wave transformers of 20 degree.
The most according to claim 1 for the multi-pulse rectification transformer substation system at electric automobile DC charging station, it is characterised in that
Described many pulse wave transformers (1) are that output voltage amplitude is equal and phase angle differs 24 pulse wave transformers of 15 degree.
The most according to claim 2 for the multi-pulse rectification transformer substation system at electric automobile DC charging station, it is characterised in that
The three phases winding at primary side triangle of described 18 pulse wave transformers connects, and the secondary side winding of 18 pulse wave transformers includes: move to left
Extend-triangle winding, delta windings and move to right extend-triangle winding, move to left extend-triangle winding output voltage up time
The electrical angle of pin advanced delta windings output voltage 20 °, moves to right extend-triangle winding output voltage clockwise hysteresis triangle
The electrical angle of shape winding output voltage 20 °.
The most according to claim 2 for the multi-pulse rectification transformer substation system at electric automobile DC charging station, it is characterised in that
The three phases winding at primary side Y-connection of described 18 pulse wave transformers, the secondary side winding of 18 pulse wave transformers includes: moves to left and prolongs
Limit delta windings, delta windings and move to right extend-triangle winding, move to left extend-triangle winding output voltage clockwise
The electrical angle of advanced delta windings output voltage 20 °, moves to right extend-triangle winding output voltage clockwise hysteresis triangle
The electrical angle that winding output voltage is 20 °.
The most according to claim 3 for the multi-pulse rectification transformer substation system at electric automobile DC charging station, it is characterised in that
The three phases winding at primary side triangle of described 24 pulse wave transformers connects, and the secondary side winding of 24 pulse wave transformers includes: move to left
22.5 ° of extend-triangle windings, move to left 7.5 ° of extend-triangle windings, move to right 7.5 ° of extend-triangle windings and move to right 22.5 °
Extend-triangle winding, move to left 7.5 ° of extend-triangle winding output voltage clockwise hysteresises move to left 22.5 ° of extend-triangles around
The electrical angle of group output voltage 15 °, moves to right 7.5 ° of extend-triangle winding output voltage clockwise hysteresises and moves to left 7.5 ° and prolong limit three
The electrical angle of dihedral winding output voltage 15 °, moves to right 22.5 ° of extend-triangle winding output voltage clockwise hysteresises and moves to right 7.5 °
The electrical angle of extend-triangle winding output voltage 15 °.
The most according to claim 3 for the multi-pulse rectification transformer substation system at electric automobile DC charging station, it is characterised in that
The three phases winding at primary side Y-connection of described 24 pulse wave transformers, the secondary side winding of 24 pulse wave transformers includes: move to left
22.5 ° of extend-triangle windings, move to left 7.5 ° of extend-triangle windings, move to right 7.5 ° of extend-triangle windings and move to right 22.5 °
Extend-triangle winding, move to left 7.5 ° of extend-triangle winding output voltage clockwise hysteresises move to left 22.5 ° of extend-triangles around
The electrical angle of group output voltage 15 °, moves to right 7.5 ° of extend-triangle winding output voltage clockwise hysteresises and moves to left 7.5 ° and prolong limit three
The electrical angle of dihedral winding output voltage 15 °, moves to right 22.5 ° of extend-triangle winding output voltage clockwise hysteresises and moves to right 7.5 °
The electrical angle of extend-triangle winding output voltage 15 °.
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| CN106655457A (en) * | 2017-03-24 | 2017-05-10 | 刘博� | DC light storage and charging integrated charging station |
| CN106972562A (en) * | 2017-03-31 | 2017-07-21 | 北京福斯特开关设备有限公司 | A kind of charging circuit and integral type charging equipment |
| CN108199395A (en) * | 2017-12-29 | 2018-06-22 | 国网山东省电力公司高唐县供电公司 | The method of low pressure centrally connected power supply taiwan area three-phrase burden balance |
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| CN110022075A (en) * | 2019-03-20 | 2019-07-16 | 厦门理工学院 | A kind of charging management system and method based on multi-mode rectifier |
| CN110417102A (en) * | 2018-04-27 | 2019-11-05 | 上海欣匀汽车服务有限公司 | A kind of charging system of electric powercar |
| CN111244959A (en) * | 2020-03-13 | 2020-06-05 | 西南交通大学 | Low-order harmonic filtering method for three-phase alternating current signals |
| CN111835073A (en) * | 2019-04-18 | 2020-10-27 | 台达电子企业管理（上海）有限公司 | Power supply device, charging system and charging scheduling method |
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| CN108199395A (en) * | 2017-12-29 | 2018-06-22 | 国网山东省电力公司高唐县供电公司 | The method of low pressure centrally connected power supply taiwan area three-phrase burden balance |
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| CN110022075A (en) * | 2019-03-20 | 2019-07-16 | 厦门理工学院 | A kind of charging management system and method based on multi-mode rectifier |
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| US11444546B2 (en) | 2019-04-18 | 2022-09-13 | Delta Electronics (Shanghai) Co., Ltd. | Power supply device, charging system and charge scheduling method |
| US11588337B2 (en) | 2019-04-18 | 2023-02-21 | Delta Electronics (Shanghai) Co., Ltd. | Centralized charging cabinet provided with isolation area and charging area |
| US11742688B2 (en) | 2019-04-18 | 2023-08-29 | Delta Electronics (Shanghai) Co., Ltd. | Charging device and charging control method |
| CN111244959A (en) * | 2020-03-13 | 2020-06-05 | 西南交通大学 | Low-order harmonic filtering method for three-phase alternating current signals |
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