EP3363027A1 - Anordnung mit einem elektrischen widerstand und überbrückungsvorrichtung - Google Patents
Anordnung mit einem elektrischen widerstand und überbrückungsvorrichtungInfo
- Publication number
- EP3363027A1 EP3363027A1 EP15802055.2A EP15802055A EP3363027A1 EP 3363027 A1 EP3363027 A1 EP 3363027A1 EP 15802055 A EP15802055 A EP 15802055A EP 3363027 A1 EP3363027 A1 EP 3363027A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resistor
- arrangement
- housing
- insulator
- arrangement according
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors; Arresters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C13/00—Resistors not provided for elsewhere
- H01C13/02—Structural combinations of resistors
Definitions
- the invention relates to an arrangement with an electrical resistance, which is arranged in a gas-tight housing.
- Such resistance is known from German Laid ⁇ specification DE 10 2014 205 256 AI.
- Self-commutated converters often have energy stores (eg, capacitors) that must be precharged to a certain voltage at the start of inverter operation. In order to pre-charge this electric
- the resistor can be designed as a gas-insulated resistor and therefore be arranged in a gas-tight housing.
- Arrangement would be next to the resistor and the bridging device two gas-tight housing and at least two gas-tight connection tube elements necessary and possibly foundations and holding devices for the two housings and the connecting tube elements.
- the invention has for its object to provide an arrangement that can be realized inexpensively. This object is achieved by a
- Resistor which is arranged in a gas-tight housing, wherein in the housing a bridging device for
- the lock-up device may also be referred to as a short-circuit device for (short-circuiting) the resistor.
- the housing can be filled with an electrically insulating gas. It is advantageous that the electrical resistance and the bridging device are arranged in a common housing. Therefore, only one housing is necessary for the electrical resistance, and for the lock device and the ⁇
- the arrangement can be designed such that the
- Resistor is switched.
- the arrangement can also be designed such that the
- a rotationally symmetrical housing (in particular a tubular housing), which at a first end face and at a second end face in each case with a further
- Housing is connectable.
- the first end and the second end face thereby provide a first axial end side and a second axial end side of the housing is.
- ⁇ rotation symmetrical housing in particular in the field of
- Housing each be connected to a further housing and so for example in a gas-insulated switchgear
- the arrangement may be configured such that the resistor is held by a first insulator which electrically isolates the resistance to the housing.
- the arrangement can also be designed so that the
- Resistor is held by a second insulator, which electrically isolates the resistance to the housing.
- the arrangement can also be designed so that the
- the Bridging device is held by the first insulator and / or the second insulator.
- the first insulator and the second insulator each have a dual function: they serve as an electrical insulator for isolating the resistor and the bridging device electrically from the housing.
- the first insulator and the second insulator serve as a holding means for holding the resistor and the bridging device in the housing, i. H. around the relative position of
- the arrangement may be configured such that the first
- Insulator is a first disc-shaped insulator, and / or the second insulator is a second disc-shaped insulator.
- the arrangement may be configured such that the first
- Insulator limits the first end face of the housing, and / or the second insulator limits the second end face of the housing.
- the arrangement can also be designed such that a first connection of the arrangement passes through the first insulator, and / or a second connection of the arrangement reaches through the second insulator.
- the arrangement may be configured such that the bridging device has a fixed contact and a
- the fixed contact and the moving contact can be rotationally symmetrical.
- the arrangement can also be designed so that the
- Moving contact is a sliding movable moving contact.
- the arrangement can be made particularly compact.
- the arrangement can also be designed so that the
- Resistor is a columnar resistor
- Moving contact is displaceable on a path that runs parallel to the resistor. This also achieves a particularly compact design of the arrangement.
- Fixed contact and be electrically connected to a first resistor terminal and the second terminal to be electrically connected to the moving contact and a second resistor terminal.
- the arrangement may include a drive, in particular a
- the arrangement can be designed so that the
- Drive is installed at ground potential, and the arrangement comprises an electrically insulating component for transmitting a drive movement to the moving contact. So it is the drive movement by means of electrically insulating
- Component transmitted from the drive to the moving contact Component transmitted from the drive to the moving contact.
- the installation of the drive at ground potential is particularly advantageous because this drive can then be controlled with little effort (and therefore cost-effective) and supplied with the electrical energy required for the drive.
- the arrangement can also be designed such that the
- the arrangement may be designed such that the resistor is a gas-insulated resistor, in particular a gas-insulated high-voltage resistor.
- the arrangement may be configured such that the resistor has a series connection of disc-shaped resistance elements.
- Resistance elements can be in particular high voltage ⁇ resistors with different resistance values
- Resistor elements are electrically connected in series.
- the arrangement may be a precharge arrangement for precharging an energy store of a self-commutated power converter.
- Such a power converter can, for example
- Figure 1 shows an embodiment of an arrangement with a gas-insulated resistor and a
- Lock-up device and in FIG. 2 shows an exemplary embodiment of a high-voltage direct-current power transmission device with such an arrangement.
- the resistor 3 is a gas-insulated resistor 3, in particular a gas-insulated high-voltage resistor 3.
- high voltage is understood to mean, in particular, the voltage range> 40 kV, but the arrangement can also be used at lower voltages a plurality of disk-shaped resistance elements 10, which are electrically connected in series.
- the resistor 3 and the bridging device 5 are located in the interior of a housing 13.
- This housing 13 is rotationally symmetrical and constitutes a tubular housing 13.
- the housing 13 is gas-tight.
- the interior of the housing 13 may be filled with an electrically insulating gas (eg with sulfur hexafluoride SFe) and is therefore also referred to as a gas space 16.
- the housing 13 is a pressure vessel which delimits the gas space 16.
- the resistor 3 and the bridging device 5 are thus located in the common gas space 16.
- the housing 13 encapsulates the gas space 16 and therefore can also be used as an encapsulating housing 13
- the housing can each be connected to a further housing, for example by means of a flange.
- these further housing may each have the same or a different shape than the housing 13th
- the first end face 19 forms a first axial end side of the housing 13; the second end face 22 forms a second axial end side of the housing 13.
- a first disk-shaped insulator 25 delimits the first end face 19 of the housing 13; a second disk-shaped insulator 25 (disk insulator, support insulator) delimits the first end face 19 of the housing 13; a second disk-shaped insulator 25 (disk insulator, support insulator) delimits the first end face 19 of the housing 13; a second
- disc-shaped insulator 28 (disc insulator,
- the first insulator 25 electrically isolates the resistor 3 and the bridging device 5 from the housing 13. In addition, the first insulator 25 carries the resistor 3 and the bridging device 5 and thus sets the position of the resistor and the lock-up device 5 in the
- the second insulator 28 (as well as the first insulator 25) also has an isolation function and a resistance holding function
- the first insulator 25 and the second insulator 28 may be gas-tight or gas-permeable.
- the bridging device 5 has a fixed contact 33 (fixed contact piece 33) and a moving contact 36 (movable contact piece 36).
- the fixed contact 33 forms a mating contact with the moving contact 36.
- the fixed contact 33 and the moving contact 36 are rotationally symmetrical
- the fixed contact 33 and the moving contact 36 are made for example of copper or aluminum.
- the bridging device 5 is electrically connected in parallel to the resistor 3. This electrical parallel connection is designed so that the fixed contact 33 is electrically connected to a first terminal 39 of the resistor 3 (first
- Resistance terminal 39 is connected.
- the fixed contact 33 and the first resistor terminal 39 are electrically connected to a first terminal 42 of the arrangement 1.
- the moving contact 36 is electrically connected to a second terminal 45 of the resistor 3 (second resistor terminal 45).
- Resistor terminal 45 are electrically connected to a second terminal 48 of the device 1.
- the first terminal 42 of the arrangement 1 passes through the first insulator 25; of the second terminal 48 of the device 1 passes through the second insulator 28. This makes it possible to contact the device 1 electrically.
- the first terminal 42, the second terminal 48 and the resistor 3 or the
- the sliding movable moving contact 36 is displaceable along a rectilinear path 50 (displacement axis 50), which runs parallel to the columnar resistance 3. In the first position shown in FIG.
- Bridging device is the moving contact 36 from
- the lock-up device 5 is thus in an open state; between the first terminal 42 and the second terminal 48, the electrical resistance 3 is effective.
- the moving contact 36 is moved along the path 50 until the moving contact 36 contacts the fixed contact 33. More specifically, the moving contact 36 is displaced along the track 50 until a hollow cylindrical end of the
- Moving contact 36 enters a hollow cylindrical recess of Festutton3 33. Then there is the second position of the lock-up device 5, in the means of the
- Bypass device 5 the resistor 3 is electrically bypassed (electrically short-circuited). In this second position of the bridging device 5, only the 48 resistive (relatively low) resistance of the bypass ⁇ device 5 is electrically operatively connected between the first terminal 42 and the second port. The resistor 3 is thus electrically bridged or short-circuited.
- the fixed contact 33 and the moving contact 36 are thus components of a short-circuiting (bridging) switching element for
- This drive 56 of the moving contact 36 is a motor drive 56 which is outside the housing 13
- the drive is installed at ground potential.
- the drive movement is by means of the insulating shaft 53 (which is an electrically insulating
- Component 53 represents) transmitted from the drive 56 to the moving contact 36. Since the drive 56 is arranged at ground potential, its electrical control and the supply of the drive 56 with electrical energy is relatively easy and inexpensive possible.
- the drive 56 and the insulating shaft 53 are in the embodiment only
- the moving contact 36 and the fixed contact 33 have a sufficient erosion resistance, so that by means of
- Lock-up device also a residual current still flowing in the switching instant via the resistor (connected to an associated voltage drop across the resistor)
- the resistor 3 and the bridging device 5 form a structural unit.
- the resistor 3 and the lock-up device 5 form a
- the resistor 3 is an electrical resistance component 3, which has an ohmic resistance between the first resistance terminal 39 and the second resistance terminal 45
- the arrangement 1 can advantageously be used for precharging one or more energy stores of a self-commutated power converter and therefore represents a precharge arrangement for precharging such an energy store.
- FIG. 2 shows an exemplary embodiment of a high-voltage direct current transmission device 201 which has a first self-commutated power converter 204 and a second self-commutated power converter 207.
- DC side of the first self-commutated power converter 204 is connected by means of a DC circuit 210 (high voltage DC circuit 210) to the DC side of the second self-commutated power converter 207.
- the AC side of the first power converter 204 is electrically connected via three arrangements 1 ⁇ with a first three-phase AC mains 217. Likewise, the
- DC circuit 210 has an arrangement ⁇ ⁇ ⁇ ⁇ .
- Each of the arrangements 1 ⁇ , 1 ⁇ ⁇ and 1 ⁇ ⁇ ⁇ has in particular a high-voltage resistor 3 and a
- DC circuit 210 are transmitted to the second AC mains 225; as well as an energy transfer in the opposite direction is possible.
- the first self-commutated power converter 204 and the second self-commutated power converter 207 each have a number of sub-modules 230. These submodules each contain an energy store 232 in the form of a capacitor 232
- Submodules can be used, for example, as half-bridge submodules or designed as full bridge submodules.
- the two power converters 204 and 207 are each configured as modular multilevel inverters (known as such). To the energy storage of submodules
- Power converter 204 are precharged; Likewise, the submodules 230 of the second power converter 207 can be precharged by the second AC network 225 by means of the arrangements 1 ⁇ ⁇ .
- other constellations are also conceivable. For example, when the first power converter 204 is ready for operation (ie when the power converter 204 is capable of establishing a DC voltage in the DC circuit 210 and power via the DC circuit to the second
- Power converter 207 are charged.
- the resistance of the respective arrangement limits the so-called inrush current (charging current) when precharging the energy store
- Bridging device 5 of each used for charging arrangement in the open state (as shown schematically in Figure 2).
- Bridging device 5 bridged, so that the resistor is then electrically ineffective.
- resistor 3 and the bypass device 5 are integrated in a single device.
- the resistor 3 and the bypass device 5 are located in a common gas space (i.e., in a common gas-insulated resource). in the
- Connecting elements eg passive angle blocks.
- the GIS housing 13 has a connection flange for connection to each of two ends for connection to adjacent GIS elements. That the
- Resistor 3 short-circuiting switching element 5 must have a certain switching capacity and with accordingly Abbrandfesten contacts to be able to short-circuit the voltage and the current through the resistor after charging. Furthermore, the contacts 33, 36 of the switching element must also be able to carry the rated current of the system permanently.
- the contacts can be similar, for example
- the arrangement with the resistor and the bridging device requires less space than one
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL15802055T PL3363027T3 (pl) | 2015-11-26 | 2015-11-26 | Komutowany wewnętrznie przekształtnik z układem zawierającym rezystor elektryczny i urządzenie mostkowe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2015/077763 WO2017088923A1 (de) | 2015-11-26 | 2015-11-26 | Anordnung mit einem elektrischen widerstand und überbrückungsvorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3363027A1 true EP3363027A1 (de) | 2018-08-22 |
| EP3363027B1 EP3363027B1 (de) | 2020-03-25 |
Family
ID=54754622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15802055.2A Active EP3363027B1 (de) | 2015-11-26 | 2015-11-26 | Selbstgeführter stromrichter mit einer anordnung mit einem elektrischen widerstand und überbrückungsvorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3363027B1 (de) |
| CN (1) | CN208954729U (de) |
| PL (1) | PL3363027T3 (de) |
| WO (1) | WO2017088923A1 (de) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2466596B1 (de) * | 2010-12-16 | 2013-08-28 | ABB Research Ltd. | Bauteil mit Überspannungsschutz und Verfahren zu dessen Prüfung |
-
2015
- 2015-11-26 EP EP15802055.2A patent/EP3363027B1/de active Active
- 2015-11-26 CN CN201590001642.1U patent/CN208954729U/zh not_active Expired - Lifetime
- 2015-11-26 PL PL15802055T patent/PL3363027T3/pl unknown
- 2015-11-26 WO PCT/EP2015/077763 patent/WO2017088923A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017088923A1 (de) | 2017-06-01 |
| CN208954729U (zh) | 2019-06-07 |
| PL3363027T3 (pl) | 2020-09-07 |
| EP3363027B1 (de) | 2020-03-25 |
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