CN110168897A - For testing the device of electrical energy storage system - Google Patents
For testing the device of electrical energy storage system Download PDFInfo
- Publication number
- CN110168897A CN110168897A CN201780076896.3A CN201780076896A CN110168897A CN 110168897 A CN110168897 A CN 110168897A CN 201780076896 A CN201780076896 A CN 201780076896A CN 110168897 A CN110168897 A CN 110168897A
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- converter
- rectifier
- voltage
- switch
- circuit
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Classifications
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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
- H02M7/02—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
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/25—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in series, e.g. for multiplication of voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- 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
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/17—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only arranged for operation in parallel
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
-
- 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
- H02M1/007—Plural converter units in cascade
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dc-Dc Converters (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to a kind of for generating the device for switching electrical DC voltage, including transformer, rectifier module (2) and DC-DC voltage converter module (3), wherein transformer (1) has the first secondary circuit (4) and second subprime circuit (5), first secondary circuit (4) has the first rectifier of downstream (6), second subprime circuit (5) has the second rectifier of downstream (7), first rectifier (6) has downstream first switch DC-DC electric pressure converter (8), second rectifier (7) has downstream second switch DC-DC electric pressure converter (9), downstream DC-DC electric pressure converter (8, 9) it is embodied as two-stage buck converter.The invention further relates to the purposes that the device is used to test electrical energy storage system.
Description
Technical field
The present invention relates to it is a kind of for generate switch D/C voltage device, the device include transformer, rectifier module and
DC-DC voltage converter module.The invention further relates to the purposes that the device is used to test electrical energy storage system.
Background technique
For testing known to the prior art device, particularly battery test system of electrical energy storage system especially for surveying
Try the electrical energy storage system of electric vehicle.Mesuring battary system is run with DC voltage as high as possible, to save vehicle cable
Cross section, to save cost and weight.For test equipment, this needs to generate the survey of the switch in 1000V and range above
Try D/C voltage.This is equally applicable to the simulation of this energy storage system.
For this purpose it is known that rectifier module is connected to the primary side of transformer and is produced by switch DC voltage converter
Raw required switch D/C voltage.
In order to generate this switch DC voltage, usually using with the resistance in 650V, 1200V or 1700V voltage range
The electronic switch of plug voltage strength, such as MOSFET or IGBT, blocking voltage intensity are higher than DC voltage to be switched about
30%-40%, to avoid semiconductor damage.
According to voltage class, the switching speed difference of electronic switch is very big: the semiconductor switch with higher blocking voltage
Usually with switching frequency more lower than semiconductor switch with lower blocking voltage and dynamic characteristic.
For dynamic characteristic needed for realizing test macro under high D/C voltage, it is known to use have reduced portion
The cascade DC converter of component voltage.For example, the use of three-stage inverter being common.Height input D/C voltage is distributed in arranged in series
Between multiple semiconductor switch, particularly IGBT, so that each individually semiconductor switch needs reduced blocking voltage intensity.
However, having the shortcomings that increase switch workload using three-stage inverter.
Summary of the invention
Now, it the purpose of the present invention is overcoming these and other disadvantages, and creates a kind of for testing electrical energy storage device
Device, which can realize the required high switch DC with optimal dynamic characteristic and high switching frequency with the smallest switching value
Voltage.
According to the present invention, which is realized by device as described above, wherein transformer have the first secondary circuit and
Second subprime circuit, the first secondary circuit have the first rectifier of downstream, and second subprime circuit has the second rectifier of downstream, and
And wherein the first rectifier has downstream first switch DC-DC electric pressure converter, the second rectifier has downstream second switch DC-
DC voltage converter, these downstreams DC-DC electric pressure converter are embodied as two-stage buck converter.The conversion of the two switch DC-DCs
Device is preferably connected in series in outlet side, so that their output voltage is added.
Hereby it is achieved that the power source path of two current separations, each power source path has reduced voltage.This allows in electricity
In source path using have than use the possible lower blocking voltage resistance of single power source path and higher switching frequency and
The dynamic semiconductor switch of dynamic route.
Compared with traditional solution, when using 1200V semiconductor at 1200V or higher output voltage, according to
The high dynamic characteristic of the device of the invention permission test macro.On the one hand, it offers the advantage that: can make in the design
Higher switch frequency is provided compared with the semiconductor switch with higher blocking voltage with simpler two-stage buck converter
Rate and improved dynamic characteristic.On the other hand, two power source paths separate total voltage, allow to apply with lower than total voltage
Blocking voltage resistance semiconductor switch, and DC-DC converter can outlet side be connected in series to realize desired height
Output voltage.
Preferably, the reference potential of the first rectifier and the second rectifier connects, and the first DC-DC converter and second
The reference potential of DC-DC converter is connected and is drawn preferably as midpoint potential.
Only the reference potential of DC-DC converter can be drawn as midpoint potential or rectifier and DC-DC converter
Reference potential can be used as midpoint potential together surround and draw.Which ensure that the output electricity of test equipment according to the present invention
Pressure corresponds to the sum of the output voltage of two power source paths.According to the present invention, power source path separates high total voltage so that have compared with
Low blocking voltage and it can be used for each power source path compared with the semiconductor switch of high dynamic characteristic.
Preferably, the output of the first rectifier and the second rectifier and reference potential are as intermediate circuit terminal (DC link
Terminal) it draws.In particular, they, which can be brought out device-, for example provides external loading-for example in the form of tap terminal.This
Kind DC link connection provides substantially invariable D/C voltage, and is particularly useful for providing external loading.
In principle, the first secondary circuit and/or second subprime circuit can be realized with any transfer ratio.For example, can be real
It is now 2:1 with the transfer ratio of primary side, so that the input voltage of the output voltage of secondary circuit and therefore power source path is distinguished
The half of input voltage corresponding to transformer.It is verified particularly advantageously by the first secondary circuit and second subprime circuit
Being related to the transfer ratio of primary side is 1:0.94, because in this case, for example, the input voltage of power source path is maintained at
Low voltage domain, and it is applicable in corresponding low-voltage standards.In generated low pressure range, the apparatus according to the invention provides two
The two-stage buck converter of a series connection, each power source path provide a two-stage buck converter, this provide it is smaller and
The advantages of passive filtering device assembly can be used for DC link circuit.
Although having used the component of twice known device, the use of this circuit topology is surprisingly faster, more
It is dynamically and cheaper.
However, it is also possible according to the present invention to provide the different distributions of high primary voltage, such as by a power source path
Apply than to the higher voltage of other power source paths.This makes it possible to realize the mesh of the D/C voltage of the output terminal of test equipment
Mark asymmetry.
According to the invention, it is further possible to high primary voltage is divided into three or more secondary paths, wherein each secondary road
Diameter is provided with the series connection of rectifier module according to the present invention and DC-DC converter, and wherein DC-DC converter is each
Comfortable outlet side is connected in series, to realize required high output voltage.
Preferably, the first secondary circuit of transformer and second subprime circuit have three-phase.
In advantageous embodiment of the invention, Switching DC-DC converter is designed to four foot buck converter of two-stage.Partly lead
Volume elements part, particularly IGBT or MOSFET are preferably used in rectifier and Switching DC-DC converter.
The device can be designed specifically for generation amplitude greater than 1000V, preferably greater than 1200V, particularly preferably
Switch D/C voltage within the scope of 1300V to 1700V, wherein in power source path, particularly rectifier and/or switch D/C voltage
The blocking voltage intensity of semiconductor element in converter is less than 1700V, preferably from about 1200V.
In a preferred embodiment of the invention, Switching DC-DC converter is connected in series in outlet side.This allows to provide increase
D/C voltage.
As described above, by the way that the electricity output of DC-DC converter is connected to energy storage system to be measured, using according to this hair
Bright device tests electrical energy storage system, further solves the purpose of the present invention.
According to the present invention, other than test electrical energy storage system when using the apparatus according to the invention, optional DC
LINK terminal can also be used to provide electric loading.
The invention further relates to the purposes that apparatus of the present invention are used to simulate electrical energy storage system.
Other features of the invention are disclosed in claims, the description of embodiment and attached drawing.Underneath with attached drawing
Shown in non-limiting, nonexcludability embodiment the present invention is explained in greater detail.
Detailed description of the invention
Fig. 1 shows the embodiment of test device according to the present invention,
Fig. 2 a shows the detailed maps of the embodiment of test device according to the present invention,
Fig. 2 b shows the detailed maps of another embodiment of test device according to the present invention.
Specific embodiment
Three-phase mains voltage is divided into two secondary paths in three-phase transformer 1, has a primary side 11 and two times
Grade circuit 4,5.Two individual power source paths of each self-forming of secondary path, for generating required switch D/C voltage.
Each individually power source path includes rectifier module MR and DC-DC converter STDC, thus rectifier module MR+
6 and DC-DC converter STDC+8 setting is in top power source path, rectifier module MR-7 and DC-DC converter STDC-9 setting
In lower electric power path, thus two rectifier modules 2 and two DC-DC converters 3 usually be can be symmetrical for supporting
The same type of load.The reference potential 15,17 of two rectifier modules 6,7 links together.Two DC voltage converters
STDC+8 and STDC-9 is connected in series in outlet side, so as in the output 18,19 of DC voltage converter 3 or DC voltage converter 3
Reference potential 20,21 at generate needed for high output voltage.
The current separation of two power source paths has the advantage that the intermediate circuit voltage of two power source paths i.e. with reference to electricity
Voltage at position 15,17 only exists in the voltage level of about 650V to 850V, but can be achieved on output voltage is 1200V-
1700V.This allows to using with lower blocking voltage resistance and lower switch and conduction loss and corresponding higher
Switching frequency and dynamic characteristic semiconductor (IGBT, MOSFET, diode).
For example, using the IGBT of the blocking voltage with 1200V.The dynamic characteristic for the output voltage to be adjusted is very high, because
Switching frequency for 1200V semiconductor is about 5-15kHz, and 1700V semiconductor is typically only capable to the switching frequency with 1.5-4kHz
Work.Therefore, the up to high system output voltage of 1500V DC may be implemented using 1200V semiconductor.
Other than with the better dynamic characteristic energy of 800V cell tester or the comparable system of simulator, this topology
Another advantage of structure is that current potential DC_MP (midpoint MP......) can also draw and be utilized from circuit.It therefore, can be with
The particularly asymmetry of the voltage of adjustment member output DC+ to DC_MP and DC_MP to DC- can be used for testing tested set
It is standby and be combined into electricity output 12.
In addition, the reference potential 15,17 of rectifier module 2 and the rectifier module 2 with connection ZK+, ZK MP and ZK
Intermediate circuit between output 14,16 can be brought out and provide as DC LINK terminal 10.It can connect two-stage electric motor inversion
Device and three-level motor inverter or other electrical loads.
Fig. 2 a shows the detailed circuit diagram of the embodiment of test device according to the present invention.The device includes three phase-change pressures
Device 1 has isolated primary side, including the first secondary circuit 4 and second subprime circuit 5.Each of two primary sides
Individual power source path is driven, rectifier module 2 includes the first rectifier 6 and the second rectifier 7, switch DC conversion module 3
Including the first DC converter 8 and the 2nd DC converter 9.
DC converter 8,9 is connected in series in outlet side, to provide increased D/C voltage at electricity output 12.Rectifier 6,
7 and the reference potential of DC-DC converter 8,9 link together and be brought out device as midpoint potential MP.
Rectifier module 6,7 is based on the two-stage inverter topology with IGBT 13 and semiconductor diode, and corresponding
Output 14,16 and reference potential 15,17 between buffer condenser 22.
DC-DC converter 8,9 is based on four foot two-stage buck converter topologies, it may have IGBT 13 and semiconductor diode.
The output 18,19 of four feet of buck converter exports as terminal and by the buffering reference of buffer condenser 23
Current potential 20.Used IGBT and semiconductor diode are preferably the component with 1200V or lower blocking voltage resistance,
Highest switching frequency when to guarantee that output voltage is more than 1200V DC.
In this embodiment, it is not brought up the current potential of the DC link between rectifier 6,7 and DC-DC converter 8,9.It can see
Out, the reference potential 15,17 of rectifier module and the reference potential 20,21 of DC-DC converter 8,9 link together and are formed and drawn
Midpoint out connects MP.It, can be at the output 12 of equipment by adjusting transfer ratio of the secondary circuit 4,5 relative to primary side 11
Required voltage symmetry is set.
Fig. 2 b shows another detailed circuit diagram of the embodiment of test device according to the present invention.Circuit diagram is substantially right
It should be in the example in Fig. 2 a.Rectifier module 6,7 is again based on the two-stage inverter topology with IGBT 13.DC conversion
Device 8,9 is again based on four foot two-stage buck converter topologies, also uses IGBT 13.
In this embodiment, DC LINK terminal 10 is drawn.As can be seen that 15, the 17 and DC- of reference potential of rectifier module
The reference potential 20,21 of DC converter 8,9 links together and forms midpoint connection MP.In addition, the reference potential also is used as
A part of DC LINK terminal 10.
The present invention is not limited to the present embodiment, but cover all devices in scope of the patent claims and application.
Reference signs list
1 transformer
2 rectifier modules
3 dc voltage changer modules
4 first secondary circuits
5 second subprime circuits
6 first rectifiers
7 second rectifiers
8 first DC-DC converters
9 second DC-DC converters
10 DC-link terminals
The primary side of 11 transformers
12 electrical outputs
13 IGBT
The output of 14 first rectifiers
The reference potential of 15 first rectifiers
The output of 16 second rectifiers
The reference potential of 17 second rectifiers
The output of 18 first DC-DC converters
The output of 19 second DC-DC converters
The reference potential of 20 first DC-DC converters
The reference potential of 21 second DC-DC converters
Claims (11)
1. a kind of for generating the device of switch D/C voltage, described device includes transformer (1), rectifier module (2) and DC-DC
Voltage converter module (3), which is characterized in that
A. the transformer (1) has the first secondary circuit (4) and second subprime circuit (5),
B. the first rectifier (6) is connected to the downstream of first secondary circuit (4), and the second rectifier (7) is connected to described
The downstream of secondary stage circuit (5),
C. first switch DC-DC converter (8) is connected to the downstream of first rectifier (6), second switch DC-DC converter
(9) it is connected to the downstream of second rectifier (7), the Switching DC-DC converter (8,9) is two-stage buck converter.
2. the apparatus according to claim 1, which is characterized in that first rectifier (6) and second rectifier (7)
Reference potential (15,17) link together, and first DC-DC converter (8) and second DC-DC converter
(9) reference potential (20,21) links together and draws preferably as midpoint potential (MP).
3. device according to claim 1 or 2, which is characterized in that first rectifier (6) and second rectifier
(7) output (14,16) and reference potential (15,17) is drawn as DC-link terminals (10), especially outer for being supplied to
Section load.
4. device according to any one of claim 1 to 3, which is characterized in that first secondary circuit (4) and/or
The transfer ratio of the second subprime circuit (5) and primary side (11) is 1:0.94.
5. device according to any one of claim 1 to 4, which is characterized in that the first secondary electrical of the transformer (1)
Road (4) and second subprime circuit (5) have three-phase.
6. device according to any one of claim 1 to 5, which is characterized in that the Switching DC-DC converter (8,9)
It is designed as four foot two-stage buck converters.
7. device according to any one of claim 1 to 6, which is characterized in that semiconductor element, particularly IGBT (13)
Or MOSFET is used in the rectifier (6,7) and the Switching DC-DC converter (8,9).
8. device according to claim 7, which is characterized in that described device be designed for generation amplitude greater than 1000V,
Preferably greater than 1200V, the switch D/C voltage more preferably within the scope of 1300V to 1700V, wherein the rectifier (6,7) and
The blocking voltage intensity of semiconductor element in the switch DC voltage converter (8,9) is less than 1700V, preferably from about 1200V.
9. device according to any one of claim 1 to 8, which is characterized in that the switch DC voltage converter (8,9)
It is connected in series in outlet side.
10. device according to any one of claim 1 to 9 is used to test the purposes of electrical energy storage system, wherein described
The electricity output (12) of DC-DC converter (8,9) is connected to energy storage system to be tested.
11. purposes according to claim 10, which is characterized in that intermediate other than testing the electrical energy storage system
Circuit connection (10) is used to provide electric power to electric loading.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA51124/2016 | 2016-12-12 | ||
| ATA51124/2016A AT519433B1 (en) | 2016-12-12 | 2016-12-12 | Device for testing electrical energy storage systems |
| PCT/EP2017/082152 WO2018108779A1 (en) | 2016-12-12 | 2017-12-11 | Apparatus for testing electrical energy storage systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110168897A true CN110168897A (en) | 2019-08-23 |
| CN110168897B CN110168897B (en) | 2021-08-03 |
Family
ID=60888372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780076896.3A Active CN110168897B (en) | 2016-12-12 | 2017-12-11 | Device for testing an electrical energy storage system |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN110168897B (en) |
| AT (1) | AT519433B1 (en) |
| DE (1) | DE112017006222A5 (en) |
| WO (1) | WO2018108779A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025685A1 (en) * | 1990-08-14 | 1992-02-20 | Licentia Gmbh | Rectifying circuit protecting mains against transformer harmonics - utilises star connections of phase-shifted sec. windings for integration of parasitic capacitances into filter circuits |
| CN103722283A (en) * | 2013-12-30 | 2014-04-16 | 江苏博大数控成套设备有限公司 | Direct stored energy control system of plasma-cutting power source and control method thereof |
| CA2792702A1 (en) * | 2012-10-17 | 2014-04-17 | Pl Technologies Ag | Stabilized high-voltage power supply |
| WO2014157719A1 (en) * | 2013-03-29 | 2014-10-02 | 中央電子システム株式会社 | High-efficiency output stabilization power generation device and small water-flow type hydraulic power generation system |
| CN104868755A (en) * | 2015-06-12 | 2015-08-26 | 江苏同芯电气科技有限公司 | High-power bidirectional multi-way direct-current simulation power supply |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1931023A1 (en) * | 2006-12-06 | 2008-06-11 | ABB Schweiz AG | DC power supply system |
| EP2230753B1 (en) * | 2009-03-17 | 2013-05-08 | ABB Schweiz AG | Component protection for a multi-level commutator |
| AT511890B1 (en) * | 2012-11-14 | 2016-01-15 | Avl List Gmbh | Test arrangement for an energy store |
-
2016
- 2016-12-12 AT ATA51124/2016A patent/AT519433B1/en active
-
2017
- 2017-12-11 CN CN201780076896.3A patent/CN110168897B/en active Active
- 2017-12-11 DE DE112017006222.5T patent/DE112017006222A5/en active Pending
- 2017-12-11 WO PCT/EP2017/082152 patent/WO2018108779A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025685A1 (en) * | 1990-08-14 | 1992-02-20 | Licentia Gmbh | Rectifying circuit protecting mains against transformer harmonics - utilises star connections of phase-shifted sec. windings for integration of parasitic capacitances into filter circuits |
| CA2792702A1 (en) * | 2012-10-17 | 2014-04-17 | Pl Technologies Ag | Stabilized high-voltage power supply |
| WO2014157719A1 (en) * | 2013-03-29 | 2014-10-02 | 中央電子システム株式会社 | High-efficiency output stabilization power generation device and small water-flow type hydraulic power generation system |
| CN103722283A (en) * | 2013-12-30 | 2014-04-16 | 江苏博大数控成套设备有限公司 | Direct stored energy control system of plasma-cutting power source and control method thereof |
| CN104868755A (en) * | 2015-06-12 | 2015-08-26 | 江苏同芯电气科技有限公司 | High-power bidirectional multi-way direct-current simulation power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| AT519433B1 (en) | 2020-09-15 |
| WO2018108779A1 (en) | 2018-06-21 |
| CN110168897B (en) | 2021-08-03 |
| AT519433A1 (en) | 2018-06-15 |
| DE112017006222A5 (en) | 2019-09-05 |
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