EP2417613A1 - On-load tap changer comprising semiconductor switching elements - Google Patents
On-load tap changer comprising semiconductor switching elementsInfo
- Publication number
- EP2417613A1 EP2417613A1 EP10704323A EP10704323A EP2417613A1 EP 2417613 A1 EP2417613 A1 EP 2417613A1 EP 10704323 A EP10704323 A EP 10704323A EP 10704323 A EP10704323 A EP 10704323A EP 2417613 A1 EP2417613 A1 EP 2417613A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tap changer
- fixed
- contact
- contacts
- ableitkontaktstücke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 17
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
- G05F1/16—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
- G05F1/20—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
- H01H2009/544—Contacts shunted by static switch means the static switching means being an insulated gate bipolar transistor, e.g. IGBT, Darlington configuration of FET and bipolar transistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/548—Electromechanical and static switch connected in series
Definitions
- the invention relates to a tap changer with semiconductor switching elements for uninterrupted switching between winding taps of a tapped transformer.
- the invention is based on a tap changer according to the principle of a load selector.
- Tap changers are known in various embodiments; they are basically differentiated in load selectors and devices with separate selector for powerless selection of the new winding tap to be switched to and separate diverter switch for subsequent actual switching.
- the publication "Axel Kramer: On-Load Tap-Changers for Power Transformers", MR Publication 2000 provides a good overview of the different types of construction. On page 7f the special features are explained.
- all tap changers have a common load dissipation, which, regardless of the current position of the tap changer, establishes a connection to the transformer, usually the main winding.
- this load dissipation is designed as an electrically conductive diverter ring, which comprises a switching column concentric.
- the object of the invention is to eliminate these disadvantages and to provide a tap changer with semiconductor switching elements, which avoids the high load of these switching elements and ensures a galvanic separation of the tap changer of the transformer winding in steady state operation.
- the particular advantage of the solution according to the invention is that in stationary operation, all connection lines of the power electronic components are galvanically isolated from the transformer winding.
- the power electronic components are thus reliably separated from the lightning impulse voltage as well as the permanent load with the operating voltage. Only during the switching phase, ie the actual load switching, is there a galvanic connection with the transformer winding.
- Figure 1 shows a tap changer according to the invention in a schematic representation
- Figure 2 shows another embodiment of a tap changer according to the invention
- Figure 3 shows a tap changer according to the invention in different wiring on
- a tap changer which has a power electronic diverter switch 1.
- the diverter switch 1 thus consists of two paths: one for the disconnecting side, one for the acquiring side, realized in each case by a semiconductor switch 2 or 3.
- the electrical inputs 4, 5 and the electrical output 6 are by means of feedthroughs 7 in a mechanical Contact system 8 led.
- the mechanical contact system 8 has a contact carriage 9, which is indicated in the figure only by a dashed line.
- the contact carriage 9 has contact bridges 10, 11, 12, 13 which are fixedly arranged on it.
- the contact bridges 10 ...
- Each of the step contacts 15 illustrated in FIG. 1 corresponds to a winding tap n, n + 1,... Of the control winding of the step transformer.
- three contact rails 16, 17, 18 are provided in the mechanical contact system, which are each electrically conductive and of which in each case one is electrically connected to the electrical input 4 or the electrical input 5 or the electrical output 6 of the semiconductor switches 2, 3 ,
- the load dissipation is divided, d. H. there is no known from the prior art continuous discharge or the like provided.
- individual Ableitromee 19.1, 19.2, 19.3, 19.4, 19.5 are arranged, which, seen in the direction of movement of the contact carriage 9, in their extension correspond to the fixed stage contacts 15.
- location and dimensioning of the Ableitcarde 19.1 to 19.5 corresponds - in another horizontal plane - location and dimensioning of the fixed tap changer contacts 15.
- the contact bars 16 to 18 and the individual Ableitessore 19.1 to 19.5 are guided parallel to each other; the contact carriage 9 in this case performs a linear, translational movement for contacting.
- the individual Ableitessore 19.1 to 19.5 are connected to each other via an electrical connection, a derivative 20 and guided to the main winding 21.
- the Ableitinstitut 20 can be made both inside and outside the tap changer.
- the first contact bridge 10 can maraltten the tap changer contacts 15 at its one free end, at its other free end it runs on the contact rail 16, which is electrically connected to the input 4 of the first semiconductor switch 2.
- the second contact bridge 11 can schalt at its one free end also the fixed tap changer contacts 15, at its other free end it runs on the further contact rail 17 which is electrically connected to the input 5 of the second semiconductor switch.
- the third contact bridge 12 runs with its one free end on the contact rail 18, which is electrically connected to the common electrical output 6 of the power electronic circuit breaker. Its other free end corresponds to the Ableittitleen 19.1 to 19.5.
- the further contact bridge 13 is provided, the AbleitCount Kunststoff, which can be contacted at a free end with the fixed tap changer contacts 15 and can be contacted at its other end to the AbleitCounten 19.1 to 19.5.
- Symmetrical to the described contact bridge 12 is still the roller contact 14 is arranged, which is electrically connected to the contact bridges 12 and 13 and also the Ableitromee 19.1 to 19.5 beschalte can.
- both the contact bridge 12 and thus the common output 6 of the power electronic diverter switch and the contact bridge 13 with one of the Ableitromee 19.1 to 19.5 depending on the position of the switching carriage 9 can be electrically connected.
- the contact bridge 13 takes over the direct electrical connection between the respectively connected tap changer contact 15 and the respective discharge contact; depending on the switching position of this one of the Ableitessore 19.1 to 19.5.
- the contact bridges 10 and 11, which lead to the inputs of the power electronic diverter switch 1, however, are not connected; the semiconductor switches 2 and 3 are enabled.
- FIG. 2 shows a further embodiment of the invention with a circular arrangement.
- semiconductor switches 2 and 3 are provided which each have a separate electrical input 4 or 5 and a common electrical output 6.
- contact rollers 22, 23, 24 are provided which each run on a contact ring 25, 26, 27.
- These contact rings 25 to 27 correspond in function to the contact rails 16 to 18 of FIG. 1.
- the solid tap changer contacts 15 are provided here on a concentric circle. Shown is the central switching shaft 28.
- Ableitessore 19.1 to 19.3 are shown. These Ableitcarde 19.1 to 19.3 are arranged in a different horizontal plane than the fixed tap changer contacts 14. However, they have the same contact geometry as well as vertical arrangement as the solid tap changer contacts 15th
- switching segment 29 is provided of insulating material which is rotatable for load switching by the switching shaft 28 by an angle corresponding to the distance between two fixed tap changer contacts 14 and two Ableittitleen 19.1 ... 19.3.
- contact rollers 30, 31, 32 are provided in a first horizontal plane, which can be contacted with the fixed tap changer contacts 15.
- further contact rollers 33, 34, 35 are provided in a second horizontal plane, which can be contacted depending on the position of the switching segment with one of the Ableittivee 19.1 to 19.3.
- the contact roller 30 is electrically connected via the contact ring 25 to the input 4 of the first semiconductor switch 2.
- the contact roller 32 is electrically connected via the contact ring 26 to the input 5 of the second semiconductor switch 3.
- the lower contact rollers 33 and 35 are both on the contact ring 27 with the common output 6 of the two semiconductor switches 2 and 3 in combination.
- Upper contact roller 31 and lower contact roller 34 finally have an electrically conductive connection 36, such that the contact roller 31, which is arranged spatially between the contact rollers 30 and 32, directly via the lower contact roller 34 - position-dependent - connected to one of the Ableitessore 19.1 to 19.3 can be.
- the operating principle is the same: In steady state operation, the respective switched solid tap changer contact 15 is electrically connected directly to one of the Ableittitlee 19.1 to 19.3 via the contact roller 34, while the semiconductor switches 2 and 3 not only enabled, but also galvanically separated from the transformer winding are. Only when switching is, depending on the direction of rotation, in each case one of the two inputs 4 or 5 of the power electronic diverter switch by means of the associated contact roller 30 and 32 briefly with the respective fixed tap changer contact 15, to be switched to. At the same time takes over, ie only during the switching, depending on the direction of rotation one of the contact rollers 33 or 35, the electrical connection to one of the Ableitessore 19.1 to 19.3.
- FIG. 3 shows an altered wiring of the tap changer according to the invention to the transformer.
- a per se known power switching switch 37 is still provided in the transformer.
- this Umstellers 37 winding parts 38 and 39 of the transformer can be switched to increase the total available number of voltage levels differently.
- the described tap changer according to the invention has the great advantage over the prior art that all connection lines to and from the power electronic diverter switch are galvanically isolated from the transformer winding.
- the oil paths between the individual contact bridges and the individual contact pieces take over the insulation between these components.
- the power electronic diverter switch is thus separated in the invention both the lightning impulse voltage and the permanent load with the operating voltage. Only during the actual load switching, a switching phase in the time range of about 100 ms, there is a galvanic connection to the transformer winding and thus is the operating voltage.
- the insulation of the bushings 7 and the insulation distances in air can be performed correspondingly lower compared to the prior art.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
- Keying Circuit Devices (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Control Of Electrical Variables (AREA)
- Protection Of Transformers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Electronic Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009017196A DE102009017196A1 (en) | 2009-04-09 | 2009-04-09 | Tap-changer with semiconductor switching elements |
PCT/EP2010/000750 WO2010115485A1 (en) | 2009-04-09 | 2010-02-06 | On-load tap changer comprising semiconductor switching elements |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2417613A1 true EP2417613A1 (en) | 2012-02-15 |
EP2417613B1 EP2417613B1 (en) | 2013-11-13 |
Family
ID=42062365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10704323.4A Not-in-force EP2417613B1 (en) | 2009-04-09 | 2010-02-06 | Tap change device with solid state switching |
Country Status (11)
Country | Link |
---|---|
US (1) | US8624565B2 (en) |
EP (1) | EP2417613B1 (en) |
JP (1) | JP5710587B2 (en) |
KR (1) | KR101643214B1 (en) |
CN (1) | CN102356443B (en) |
BR (1) | BRPI1007060A2 (en) |
CA (1) | CA2758035C (en) |
DE (1) | DE102009017196A1 (en) |
RU (1) | RU2517196C2 (en) |
UA (1) | UA105787C2 (en) |
WO (1) | WO2010115485A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009017197A1 (en) * | 2009-04-09 | 2010-10-14 | Maschinenfabrik Reinhausen Gmbh | Tap-changer with semiconductor switching elements |
DE102010008973B4 (en) * | 2010-02-24 | 2015-11-05 | Maschinenfabrik Reinhausen Gmbh | Step switch of the hybrid type with semiconductor switching elements |
DE102012202105B4 (en) | 2012-02-13 | 2014-08-07 | Maschinenfabrik Reinhausen Gmbh | Transformer with tap changer |
DE102012103490B4 (en) * | 2012-04-20 | 2015-11-12 | Maschinenfabrik Reinhausen Gmbh | Distribution transformer for voltage regulation of local networks |
DE102012103489B4 (en) * | 2012-04-20 | 2015-11-12 | Maschinenfabrik Reinhausen Gmbh | On-load tap-changer and its use for voltage regulation in a distribution transformer |
US9087635B2 (en) | 2012-08-24 | 2015-07-21 | General Electric Company | Load tap changer |
DE102012109848B4 (en) | 2012-10-16 | 2016-06-30 | Maschinenfabrik Reinhausen Gmbh | Apparatus and method for reducing network perturbations during operation of an electric arc furnace |
DE102012109847A1 (en) * | 2012-10-16 | 2014-04-17 | Maschinenfabrik Reinhausen Gmbh | Device and method for process-controlled capacity control of an electric arc furnace |
DE102012109844B4 (en) * | 2012-10-16 | 2016-05-25 | Maschinenfabrik Reinhausen Gmbh | Apparatus and method for controlling an electric arc furnace in the initial phase of a melting process |
US9570252B2 (en) | 2014-01-27 | 2017-02-14 | General Electric Company | System and method for operating an on-load tap changer |
DE102014106997A1 (en) * | 2014-05-19 | 2015-11-19 | Maschinenfabrik Reinhausen Gmbh | Switching arrangement for a tapped transformer and method for operating such a switching arrangement |
CN108768359B (en) * | 2018-04-03 | 2021-06-01 | 李晓明 | On-load tap-changer and method thereof |
DE102020128463A1 (en) | 2020-10-29 | 2022-05-05 | Maschinenfabrik Reinhausen Gmbh | LOAD CONTROLLER AND METHOD OF OPERATING A LOAD CONTROLLER |
Family Cites Families (24)
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DE2146271B1 (en) * | 1971-09-16 | 1972-09-14 | Maschinenfabrik Reinhausen Gebr Scheubeck Kg | Control switch for the control of anti-parallel connected, parallel to permanent main contacts lying electronic semiconductor switches in step switches for regulating transformers |
US3725833A (en) * | 1972-04-28 | 1973-04-03 | Westinghouse Electric Corp | Transformer tap selector |
DD109468A1 (en) * | 1973-12-29 | 1974-11-05 | ||
JPS5499975A (en) * | 1978-01-23 | 1979-08-07 | Mitsubishi Electric Corp | Vacuum switch type circuit changing switch |
SE436529B (en) * | 1983-05-10 | 1984-12-17 | Asea Ab | Tap changers |
JPS60127713A (en) * | 1983-12-15 | 1985-07-08 | Mitsubishi Electric Corp | Load tap selector |
JPH0448575Y2 (en) * | 1985-05-01 | 1992-11-16 | ||
JPS61285705A (en) * | 1985-06-12 | 1986-12-16 | Mitsubishi Electric Corp | On-load tap changer |
JPS6276510A (en) * | 1985-09-28 | 1987-04-08 | Mitsubishi Electric Corp | On-load tap changer |
JPS6281929A (en) * | 1985-10-04 | 1987-04-15 | 株式会社東芝 | Resistance type on-load tap changer |
JPH01194311A (en) * | 1988-01-29 | 1989-08-04 | Mitsubishi Electric Corp | Tap selecting switch |
DE3833126C2 (en) | 1988-09-29 | 1995-11-30 | Reinhausen Maschf Scheubeck | Load selector for step transformers |
JPH08288154A (en) * | 1995-04-11 | 1996-11-01 | Narishige Imoto | Switching device |
JPH0917660A (en) * | 1995-06-26 | 1997-01-17 | Shigeisa Imoto | Switch circuit |
JPH09219320A (en) * | 1996-02-09 | 1997-08-19 | Toshiba Corp | Tap change-over transformer for load |
DE19821775C1 (en) | 1998-05-14 | 1999-10-14 | Reinhausen Maschf Scheubeck | Load selector for step transformer |
AT411938B (en) * | 1999-11-02 | 2004-07-26 | Hansjoerg Dipl Ing Dr Hauer | METHOD AND DEVICE FOR REGULATING THE ELECTRICAL VOLTAGE IN ELECTRICAL SUPPLY NETWORKS AND / OR CONSUMER SYSTEMS |
US6351106B1 (en) * | 2000-09-29 | 2002-02-26 | Silicon Power Corporation | Static voltage regulator and controller |
JP4369028B2 (en) * | 2000-09-29 | 2009-11-18 | 株式会社ダイヘン | Switching switch for tap switching device under load |
DE10102310C1 (en) | 2001-01-18 | 2002-06-20 | Reinhausen Maschf Scheubeck | Thyristor stepping switch for stepping transformer has hybrid construction with mechanical stepping switch and thyristor load switching device in separate housing |
US6525951B1 (en) * | 2002-01-25 | 2003-02-25 | Derek Albert Paice | Simplified wye connected 3-phase to 9-phase auto-transformer |
DE102004046926B3 (en) * | 2004-09-28 | 2006-01-19 | Maschinenfabrik Reinhausen Gmbh | Device for regulating the electrical voltage |
CN101039091A (en) * | 2006-09-25 | 2007-09-19 | 魏明 | Method and apparatus for realizing load voltage regulation with a plurality of switching elements |
JP4764318B2 (en) * | 2006-11-29 | 2011-08-31 | 株式会社東芝 | Load tap changer |
-
2009
- 2009-04-09 DE DE102009017196A patent/DE102009017196A1/en not_active Withdrawn
-
2010
- 2010-02-06 UA UAA201111804A patent/UA105787C2/en unknown
- 2010-02-06 JP JP2012503877A patent/JP5710587B2/en not_active Expired - Fee Related
- 2010-02-06 EP EP10704323.4A patent/EP2417613B1/en not_active Not-in-force
- 2010-02-06 RU RU2011145277/07A patent/RU2517196C2/en not_active IP Right Cessation
- 2010-02-06 WO PCT/EP2010/000750 patent/WO2010115485A1/en active Application Filing
- 2010-02-06 BR BRPI1007060A patent/BRPI1007060A2/en not_active IP Right Cessation
- 2010-02-06 US US13/141,107 patent/US8624565B2/en active Active
- 2010-02-06 CA CA2758035A patent/CA2758035C/en not_active Expired - Fee Related
- 2010-02-06 CN CN201080007826.0A patent/CN102356443B/en not_active Expired - Fee Related
- 2010-02-06 KR KR1020117017101A patent/KR101643214B1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2010115485A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2010234081B2 (en) | 2015-11-05 |
CA2758035C (en) | 2015-10-27 |
EP2417613B1 (en) | 2013-11-13 |
AU2010234081A1 (en) | 2011-08-11 |
KR101643214B1 (en) | 2016-08-10 |
US20120032654A1 (en) | 2012-02-09 |
UA105787C2 (en) | 2014-06-25 |
CN102356443A (en) | 2012-02-15 |
CA2758035A1 (en) | 2010-10-14 |
RU2517196C2 (en) | 2014-05-27 |
WO2010115485A1 (en) | 2010-10-14 |
BRPI1007060A2 (en) | 2018-12-11 |
DE102009017196A1 (en) | 2010-10-14 |
CN102356443B (en) | 2014-05-14 |
KR20120005435A (en) | 2012-01-16 |
US8624565B2 (en) | 2014-01-07 |
RU2011145277A (en) | 2013-05-20 |
JP2012523680A (en) | 2012-10-04 |
JP5710587B2 (en) | 2015-04-30 |
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