WO1995003645A1 - Verfahren zur kurzschlussstrombegrenzung auf einer elektrischen energieübertragungsleitung und anordnung zur kurzschlussbegrenzung - Google Patents
Verfahren zur kurzschlussstrombegrenzung auf einer elektrischen energieübertragungsleitung und anordnung zur kurzschlussbegrenzung Download PDFInfo
- Publication number
- WO1995003645A1 WO1995003645A1 PCT/DE1994/000806 DE9400806W WO9503645A1 WO 1995003645 A1 WO1995003645 A1 WO 1995003645A1 DE 9400806 W DE9400806 W DE 9400806W WO 9503645 A1 WO9503645 A1 WO 9503645A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission line
- short
- voltage
- circuit
- additional transformer
- Prior art date
Links
Classifications
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
-
- 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
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
Definitions
- protective devices for. B. use a distance protection device or an overcurrent protection device. If a short circuit occurs, the faulty line is switched off by the power switches located at the ends thereof. The energy transfer is then completely interrupted. This is not particularly desirable in the case of meshed networks.
- a control arrangement For the coupling of electrical networks, it is known to use a control arrangement with a transformer set (Elektrizticians ocean, vol. 86 (1987), number 4, pages 123 to 128).
- a transformer set comprises an additional transformer connected to the electrical transmission line, which is supplied with energy by an excitation transformer in order to generate a series or transverse voltage on the line.
- the purpose of such a transformer set is to compensate for phase shifts between the networks, it being possible to influence the power to be transmitted. It is therefore also called a phase shifter. In the event of a short circuit, a considerable short-circuit current flows through the additional transformer in such an arrangement. This is undesirable.
- control arrangement When the control arrangement is equipped with a semiconductor converter for controlling the additional transformer, the maximum value of the mains short-circuit current is decisive for the dimensioning of the semiconductor valves, which is only influenced by the choice of the short-circuit voltage of the additional transformer.
- the load flow control is more effective the smaller the short-circuit voltage of the additional transformer is chosen.
- the invention has for its object to provide a method and an arrangement for short-circuit limitation on an electrical power transmission line, in which an improved network operation is possible while avoiding the disadvantages mentioned above.
- the object is achieved with a method for limiting the short-circuit current on an electrical transmission line, into which an additional transformer for generating a series, transverse or oblique voltage is connected and which is monitored for a short-circuit, when it occurs a short circuit, an error signal is given to a control device of the additional transformer for generating a counter voltage, in particular a series, transverse or oblique voltage, at least in the sense of current limitation.
- the solution to the problem with regard to the arrangement is given according to the invention with an arrangement of a converter-controlled additional transformer for generating a series, transverse and oblique voltage on an electrical transmission line, with means for detecting a short circuit on the transmission line, which occurs when it is detected of a short circuit give an error signal to a control device of the additional transformer, the additional transformer serving as a current limiter while increasing the voltage generated on the transmission line.
- the invention is based on the observation that converter-controlled phase shifters with a transformer set are very useful
- the invention is based on the observation that converter-controlled phase shifters with a transformer set have a very favorable behavior over time.
- a completely new type of control was developed, which makes it possible to use the phase shifter as a short-circuit current limiter
- the arrangement thus protects itself and also other parts of the supply networks from the effects of short-circuit currents. Since the additional transformer serves in this way in the sense of a circuit breaker, the high-voltage technical circuitry on the additional transformer can also be kept small, if necessary. It is then no longer necessary to provide power switches for him. Disconnectors are sufficient. The power interconnection of the supply networks then takes place via the control of the converter on the additional transformer.
- the power semiconductors in particular the thyristors or GTO thyristors, can be used much higher, since the short-circuit current amplitude in the converter intermediate circuit can be limited at a lower value. With a then appropriately adapted intermediate circuit voltage, in turn, a reduced number of thyristors can be used.
- the present solution is a step in the direction of integrated protection technology for energy transmission, in which optimal protection is achieved by coupling the individual components.
- the invention can also be used advantageously in future energy distribution networks in which superconductivity is used. According to the current state of the art, such applications are only possible on the principle of controlled "quenching".
- the converter 9 is an intermediate circuit converter with semiconductor components, in particular with power semiconductor components, e.g. GTO thyristors, trained.
- the additional transformer 7 must carry the short-circuit current.
- a fault detection device 13 is electrically assigned to the converter 9, which detects the location and / or the direction of the short circuit via suitable measuring sensors 15a, 15b and emits a corresponding error signal or command to a control device of the converter 9, not shown in any more detail. If necessary, the direction can be encoded in the error signal.
- the fault detection device 13 can also be part of the converter 13. The converter 9 then immediately initiates an energy limitation (or blocking) with the next zero crossing of the voltage at the additional transformer 7, whereby the power supply for the short circuit from the supply network B is immediately interrupted. If necessary, the information about the fault location and / or the direction of the short circuit of already existing protective devices on the line, eg. B.
- the device 13 can then be omitted.
- Distance protection or overcurrent protection are used, for example, as network protection devices 12a, 12b.
- FIG. 2 shows a single-pole voltage diagram in the event of a short circuit in the supply network A.
- the voltage U ⁇ has collapsed compared to the voltage U ß due to the short circuit.
- the additional voltage Uz is fed in via the additional transformer 7 through the phase shifter 8.
- phase shifter for a high-voltage line
- only a detection of the short-circuit location and / or the short-circuit current and a corresponding control adaptation at the converter of the phase shifter are required to implement the arrangement shown. If this is equipped with a computer, this can be done by simply adapting the control software.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59402393T DE59402393D1 (de) | 1993-07-26 | 1994-07-13 | Verfahren, anordnung und verwendung zur kurzschlusstrombegrenzung auf einer elektrischen energieübertragungsleitung |
AU71208/94A AU681680B2 (en) | 1993-07-26 | 1994-07-13 | Process and arrangement for limiting short circuit current on an electric energy transmission line |
EP94920405A EP0711466B1 (de) | 1993-07-26 | 1994-07-13 | Verfahren, anordnung und verwendung zur kurzschlusstrombegrenzung auf einer elektrischen energieübertragungsleitung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4325061.0 | 1993-07-26 | ||
DE4325061A DE4325061A1 (de) | 1993-07-26 | 1993-07-26 | Verfahren zur Kurzschlußstrombegrenzung und Anordnung für einen Schrägtransformator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995003645A1 true WO1995003645A1 (de) | 1995-02-02 |
Family
ID=6493745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1994/000806 WO1995003645A1 (de) | 1993-07-26 | 1994-07-13 | Verfahren zur kurzschlussstrombegrenzung auf einer elektrischen energieübertragungsleitung und anordnung zur kurzschlussbegrenzung |
Country Status (7)
Country | Link |
---|---|
US (1) | US5706158A (de) |
EP (1) | EP0711466B1 (de) |
CN (1) | CN1038084C (de) |
AU (1) | AU681680B2 (de) |
CA (1) | CA2168025A1 (de) |
DE (2) | DE4325061A1 (de) |
WO (1) | WO1995003645A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997034210A1 (en) * | 1996-03-15 | 1997-09-18 | Abb Research Ltd. | Controllable reactor with feedback control winding |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1047036C (zh) * | 1996-12-26 | 1999-12-01 | 浙江大学 | 一种短路保护电路 |
DE10119624A1 (de) * | 2001-04-20 | 2002-11-21 | Aloys Wobben | Verfahren zum Betreiben einer Windenergieanlage |
PT1489300E (pt) * | 2001-04-20 | 2015-01-14 | Wobben Properties Gmbh | Processo para a exploração de uma instalação de energia eólica |
CN1682420A (zh) * | 2002-09-09 | 2005-10-12 | 美国超导体公司 | 具有功率流控制器的低阻抗输电线 |
CN100440673C (zh) * | 2004-03-24 | 2008-12-03 | 中国科学院电工研究所 | 一种短路故障限流器 |
CN100440674C (zh) * | 2004-07-28 | 2008-12-03 | 中国科学院电工研究所 | 一种短路故障限流器 |
CN103490395B (zh) * | 2013-09-09 | 2016-02-24 | 西安交通大学 | 利用双芯可控移相器限制线路短路电流的方法 |
DE102017102434A1 (de) | 2017-02-08 | 2018-08-09 | Schaeffler Technologies AG & Co. KG | Verfahren zur Erzielung eines Kurzschlusses eines Elektromotors und Ansteuerschaltung |
DE102017106008B4 (de) | 2017-03-21 | 2019-07-04 | Schaeffler Technologies AG & Co. KG | Verfahren zur Erkennung eines Kurzschlusses einer Endstufe eines Elektromotors, vorzugsweise eines elektrisch kommutierten Elektromotors |
CN109698496A (zh) * | 2017-10-20 | 2019-04-30 | 株洲中车时代电气股份有限公司 | 一种轨道交通牵引供电系统及控制方法 |
FR3105627B1 (fr) * | 2019-12-19 | 2023-07-14 | Electricite De France | compensateur synchrone statique série moyenne tension pour réseau électrique de distribution. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3005950A1 (de) * | 1980-02-16 | 1981-08-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Einrichtung zur synchronisierung und spannungsregelung fuer netze, die ueber eine kurzschlussschutzeinrichtung gekuppelt sind |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2710625C3 (de) * | 1977-03-11 | 1981-02-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | ,Kurzschlußschutzeinrichtung für ein Bordnetz großer Leistung |
DE2753464C3 (de) * | 1977-11-30 | 1984-02-09 | Transformatoren Union Ag, 7000 Stuttgart | Einrichtung zur Einstellung der Spannung sowie der Phasenlage von Strom und Spannung in Längs- und Querrichtung unter Last in Drehstromsystemen mit einem Transformatorsatz |
DE2933685A1 (de) * | 1979-07-25 | 1981-02-12 | Bbc Brown Boveri & Cie | Transformator zum steuerbaren verschieben der phasenwinkel der ausgangsspannungen gegenueber den phasenwinkeln der eingangsspannungen |
JPS61116922A (ja) * | 1984-11-07 | 1986-06-04 | 三菱電機株式会社 | 高速限流遮断器 |
CN86205001U (zh) * | 1986-07-22 | 1988-02-10 | 山西师范大学 | 晶闸管单相交流过载限制器 |
DE4323290A1 (de) * | 1993-07-12 | 1995-01-19 | Siemens Ag | Anordnung mit einem Schrägtransformator |
-
1993
- 1993-07-26 DE DE4325061A patent/DE4325061A1/de not_active Withdrawn
-
1994
- 1994-07-13 CA CA002168025A patent/CA2168025A1/en not_active Abandoned
- 1994-07-13 EP EP94920405A patent/EP0711466B1/de not_active Expired - Lifetime
- 1994-07-13 CN CN94192871A patent/CN1038084C/zh not_active Expired - Fee Related
- 1994-07-13 WO PCT/DE1994/000806 patent/WO1995003645A1/de active IP Right Grant
- 1994-07-13 AU AU71208/94A patent/AU681680B2/en not_active Ceased
- 1994-07-13 DE DE59402393T patent/DE59402393D1/de not_active Expired - Fee Related
-
1996
- 1996-01-26 US US08/592,026 patent/US5706158A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3005950A1 (de) * | 1980-02-16 | 1981-08-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Einrichtung zur synchronisierung und spannungsregelung fuer netze, die ueber eine kurzschlussschutzeinrichtung gekuppelt sind |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997034210A1 (en) * | 1996-03-15 | 1997-09-18 | Abb Research Ltd. | Controllable reactor with feedback control winding |
Also Published As
Publication number | Publication date |
---|---|
CA2168025A1 (en) | 1995-02-02 |
EP0711466B1 (de) | 1997-04-09 |
CN1038084C (zh) | 1998-04-15 |
CN1127573A (zh) | 1996-07-24 |
EP0711466A1 (de) | 1996-05-15 |
DE4325061A1 (de) | 1995-02-02 |
US5706158A (en) | 1998-01-06 |
DE59402393D1 (de) | 1997-05-15 |
AU7120894A (en) | 1995-02-20 |
AU681680B2 (en) | 1997-09-04 |
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