EP3628108A1 - Anordnung, insbesondere über ihre dc-zwischenkreise gekoppelte konvertersysteme, zum ausgleich von spannungseinbrüchen auf den zugeordneten netzeinspeisungen, und system mit solch einer anordnung - Google Patents
Anordnung, insbesondere über ihre dc-zwischenkreise gekoppelte konvertersysteme, zum ausgleich von spannungseinbrüchen auf den zugeordneten netzeinspeisungen, und system mit solch einer anordnungInfo
- Publication number
- EP3628108A1 EP3628108A1 EP18739761.7A EP18739761A EP3628108A1 EP 3628108 A1 EP3628108 A1 EP 3628108A1 EP 18739761 A EP18739761 A EP 18739761A EP 3628108 A1 EP3628108 A1 EP 3628108A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- distribution
- switch
- arrangement
- voltage
- converter
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/36—Arrangements for transfer of electric power between AC networks via high-voltage DC [HVDC] links; Arrangements for transfer of electric power between generators and networks via HVDC links
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in networks by storage of energy
- H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
-
- 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
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Definitions
- the invention relates to an arrangement for balancing
- the depth of the voltage dip can be between 20% and 100%
- DVR Dynamic Voltage Restorer
- Dynamic Voltage Restorer voltage stabilizers are limited in the treatment of fault type, duration and performance and therefore can only handle a fraction of all errors. How big this proportion is depends on the local conditions. For example, Dynamic Voltage Restorer voltage stabilizers can only compensate for voltage drops of up to approx. 40% residual voltage. Egg ne interruption of the power supply can not be compen ⁇ Siert. Likewise, an active power can not be transmitted.
- Converter system is connected to a second distribution.
- the first converter system with a first decoupling choke and a first voltage measurement is connected to the first distribution and the second converter system with a second coupling choke and a second voltage measurement at the second distribution.
- Converter system and the second converter system each designed as a DC / AC converter system.
- the coupling of the insects in one embodiment, can be compensated with a duration of 10 ms up to a few minutes, the length of the compensation being compensated by the battery. teriauslegung or the installed battery capacity from ⁇ hangs.
- the first distribution and the second distribution are each formed as a medium-voltage distribution.
- Power supply includes, wherein the first power supply is connected via a first transformer and a first switch to the first distribution, and wherein the second power supply ⁇ is connected via a second transformer and a second switch with the second distribution.
- the second switch is in a first state, the first switch is closed and open, and open in a second state, the first switch and the second switch is closed so that one of the two power I ⁇ feeds is electrically connected to one of the distributions.
- the first distribution is electrically connected to the second distribution via a close coupling.
- the first voltage measurement and / or the second voltage measurement to the alignment of the phases are ver ⁇ turns before switching egg nes switch measured values.
- Figure 1 system of first and second converter system and first and second power supply
- Figure 2 system of first and second converter system and first and second power supply and Batteriesys ⁇ systems in the coupling of the intermediate circuits of the first and second converter system;
- FIG. 3 functional principle of the individual converter systems
- FIG. 1 an arrangement 100 for balancing tension ⁇ voltage dips is shown in a power supply network.
- the arrangement 100 comprises a first converter system 301 and a second converter system 302, the intermediate circuits are gekop ⁇ pelt.
- the first converter system 301 is connected to a first distribution 801 and the second converter system 302 to a second distribution 802.
- the first distribution 801 and the second distribution 802 can each be designed as a medium-voltage distribution.
- the first converter system 301 is connected to the first distribution 801 together with a first decoupling choke 401 and a first voltage measurement 501.
- the second Converter system 302 is connected together with a second Entkopp ⁇ lung choke 402 and a second voltage measurement 502 to the second distribution 802nd.
- the first converter system 301 and the second converter system 302 may each be designed as a DC / AC converter system.
- these two converter systems 301, 302 may be based on the Siestorage S800 system of Siemens AG.
- FIG. 1 also shows a first grid feed 201 and a second grid feed 202.
- the first power I ⁇ supply 201 is connectedness via a first transformer 651 and ei ⁇ NEN first switch 601 with the first distribution 801 to.
- the first transformer 201 and 651 and is fed via the first switch 601 to the first decoupling inductor 401 and the first clamping ⁇ voltage measurement 501 to the first distribution 801 across the first grid.
- the first converter system 301 is disposed through a first convergence ⁇ ter-transformer 361, and a first converter 351 switches between the first voltage measurement 501 and the first Ver ⁇ distribution eight hundred and first
- the first converter 301 can be decoupled, for example for maintenance purposes. In normal Breastzu ⁇ was the first converter switch 351 is closed.
- the first converter transformer 361 and the first converter switch 351 serve as the first connection of the first converter 301.
- the Einkopplungspfad via the second power supply 202 is analogous to Einkopplungspfad the first power supply 201.
- the second converter system 302 is connected via a second converter transformer 362 and a second converter switch 352.
- the second con verter ⁇ transformer 362 and second converter switches 352 serve as second connection of the second converter 302nd
- erfindungsge ⁇ Permitted assembly 100 is shown for compensating voltage dips in a power supply network, wherein the coupling of the intermediate circuits of said first converter system 301 and second converter system 302 include battery systems 371, 372nd These battery systems make it possible to compensate for all mains faults and voltage dips in the first mains feed 201 or the second mains feed 202, the number of cycles depending on the installed batteries 371, 372 or their capacity.
- FIG. 3 shows the operating principle of the individual converter ⁇ systems 301, 302. This is illustrated by way of the first converter system 301, a first decoupling choke is arranged 401 in which, starting from a first power I ⁇ supply 201 via a first transformer 651 and entspre ⁇ sponding line resistances 666 wherein on the outgoing side of the first Entkopp ⁇ lung throttle 401, the first distribution 801 viewed from its critical load, and the first converter transformer 361 are arranged with an adjoining first converter 301 in addition.
- a first decoupling choke is arranged 401 in which, starting from a first power I ⁇ supply 201 via a first transformer 651 and entspre ⁇ sponding line resistances 666 wherein on the outgoing side of the first Entkopp ⁇ lung throttle 401, the first distribution 801 viewed from its critical load, and the first converter transformer 361 are arranged with an adjoining first converter 301 in addition.
- the second path via the second power supply 202 is ana ⁇ log showing the Figure 3.
- the first converter system 301 and the second converter system 302 are coupled in their interim ⁇ rule circuits.
- Figures 4 and 5 are conventional solutions provides means ei ⁇ nes Dynamic Voltage Restorer voltage stabilizer ones shown,.
- Figure 4 shows such a Dynamic Voltage Restorer, being coupled via a condensate ⁇ sator in this, the two conduction paths. This can be such a Dynamic Voltage Restorer voltage stabilizer compensate only voltage dips to about 30% residual voltage. If the mains voltage is interrupted, the Dynamic Voltage Restorer voltage stabilizer can not sustain the voltage.
- FIG. 5 is also a Dynamic Voltage Restorer clamping ⁇ -voltage stabilizer shown, wherein, starting from a transmission used by the network A to load B in the capacitor vomit ⁇ -assured energy of maintaining the tension in the event of a voltage dip.
- the first distribution may be associated clutch 850 electrically connected to the second distribution 802 via a short- ⁇ eight hundred and first
- the first switch In a first state, the first switch may be open 602 601 CLOSED ⁇ sen and the second switch. In a second state, the first switch 601 may be open and the second switch 602 closed. With such a configuration with a first state and second state, it is ensured that one of the network feeders 201, 202 electrically connected to ei ⁇ ner of the distributions 801, 802 is.
- first switch 601 and the second switch 602 are each closed and in a failure state either the first switch 601 or the second switch 602 is opened. It is the power path where the failure is present, separated by opening the switch so that one of the two power feeds 201, 202 is electrically connected to one of the distributions 801, 802 ver ⁇ prevented.
- the measured values of the first voltage measurement 501 or of the second voltage measurement 502 can be used to equalize the phase between the first mains supply 201 and the second network supply 502. solution 202 and the first distribution 801 and the second Ver ⁇ distribution 802nd
- the inventive system consists of two DC / AC Converter systems 301, 302, which together with a respective Entkopp ⁇ lung throttle 401, 402 to a respective MS-distribution 801, 802 are closed ⁇ and the intermediate circuits are coupled.
- the operating principle of each individual converter system 301, 302 corresponds to that of the line-interactive UPS, which protects a sensitive load from disturbances in the network by decoupling faulty networks with a decoupling choke 401, 402 and the voltage at the critical load maintains.
- line-interactive UPS energy storage with network injection
- Infeed lines 801, 802 connected. Starting from the assumption that a fault on one of the two power I ⁇ feeds 201, 202 occurs, the power can be transferred from one to the other feed system. If the error of the voltage, so in the first network feed 201 or second power supply 202 in the parent feeding equal ⁇ time on, the system can on both mains supplies the voltage based according to the configuration shown in Figure 2. In this case, an additional Energyspei ⁇ cher in the form of a battery system 371, 372 necessary. All embodiments have in common that the network side to limit the short-circuit current, a decoupling choke 401, 402 and a voltage measurement are provided.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017211355.3A DE102017211355A1 (de) | 2017-07-04 | 2017-07-04 | Anordnung zum Ausgleich von Spannungseinbrüchen und System mit solch einer Anordnung |
| PCT/EP2018/067210 WO2019007769A1 (de) | 2017-07-04 | 2018-06-27 | Anordnung, insbesondere über ihre dc-zwischenkreise gekoppelte konvertersysteme, zum ausgleich von spannungseinbrüchen auf den zugeordneten netzeinspeisungen, und system mit solch einer anordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3628108A1 true EP3628108A1 (de) | 2020-04-01 |
Family
ID=62874859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18739761.7A Withdrawn EP3628108A1 (de) | 2017-07-04 | 2018-06-27 | Anordnung, insbesondere über ihre dc-zwischenkreise gekoppelte konvertersysteme, zum ausgleich von spannungseinbrüchen auf den zugeordneten netzeinspeisungen, und system mit solch einer anordnung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11881712B2 (de) |
| EP (1) | EP3628108A1 (de) |
| DE (1) | DE102017211355A1 (de) |
| WO (1) | WO2019007769A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017211351A1 (de) | 2017-07-04 | 2019-01-10 | Siemens Aktiengesellschaft | Unterbrechungsfreie Stromversorgung |
| DE102019122766B4 (de) * | 2019-08-23 | 2021-03-04 | Sma Solar Technology Ag | Anordnung zur unterbrechungsfreien Stromversorgung |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160254665A1 (en) * | 2015-02-26 | 2016-09-01 | Industry-Academic Cooperation Foundation, Yonsei University | Power control system for energy storage devices, and control device and control method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1890371A1 (de) | 2006-08-03 | 2008-02-20 | Michael J. Mosman | USV-Systemkonfiguration mit parallelen und von einander unabhängigen Modulen |
| JP6081178B2 (ja) * | 2012-12-14 | 2017-02-15 | 株式会社日立製作所 | 電力変換器および電力変換器の制御方法 |
| CN203278255U (zh) * | 2013-04-28 | 2013-11-06 | 阳光电源股份有限公司 | 一种储能系统的削峰填谷补偿装置及储能系统 |
-
2017
- 2017-07-04 DE DE102017211355.3A patent/DE102017211355A1/de active Pending
-
2018
- 2018-06-27 WO PCT/EP2018/067210 patent/WO2019007769A1/de not_active Ceased
- 2018-06-27 EP EP18739761.7A patent/EP3628108A1/de not_active Withdrawn
- 2018-06-27 US US16/628,121 patent/US11881712B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160254665A1 (en) * | 2015-02-26 | 2016-09-01 | Industry-Academic Cooperation Foundation, Yonsei University | Power control system for energy storage devices, and control device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| US20200136390A1 (en) | 2020-04-30 |
| US11881712B2 (en) | 2024-01-23 |
| DE102017211355A1 (de) | 2019-01-10 |
| WO2019007769A1 (de) | 2019-01-10 |
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