WO2017088922A1 - Ensemble comprenant une résistance haute tension pour la précharge des condensateurs d'un convertisseur - Google Patents

Ensemble comprenant une résistance haute tension pour la précharge des condensateurs d'un convertisseur Download PDF

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Publication number
WO2017088922A1
WO2017088922A1 PCT/EP2015/077762 EP2015077762W WO2017088922A1 WO 2017088922 A1 WO2017088922 A1 WO 2017088922A1 EP 2015077762 W EP2015077762 W EP 2015077762W WO 2017088922 A1 WO2017088922 A1 WO 2017088922A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage resistor
moving contact
arrangement
resistor
terminal
Prior art date
Application number
PCT/EP2015/077762
Other languages
German (de)
English (en)
Inventor
Maik Behne
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to CN201590001641.7U priority Critical patent/CN209267435U/zh
Priority to PCT/EP2015/077762 priority patent/WO2017088922A1/fr
Priority to DE212015000329.9U priority patent/DE212015000329U1/de
Publication of WO2017088922A1 publication Critical patent/WO2017088922A1/fr

Links

Classifications

    • 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
    • H02M1/36—Means for starting or stopping converters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts

Definitions

  • the invention relates to an arrangement with a
  • High voltage resistor for precharging an energy storage of a self-commutated power converter.
  • Inverter operation must be precharged to a certain voltage. In order to pre-charge this electric
  • Bridging device each foundations, post insulators, terminals and possibly other components required to install both the high-voltage resistor and the lock-up device and electrically connect the two components
  • the invention has for its object to provide an arrangement of the type mentioned, the cost
  • High-voltage resistor for precharging an energy storage of a self-commutated power converter, wherein at the
  • the high-voltage resistor and the bridging device form a structural unit.
  • the arrangement is particularly advantageous that the
  • Bridging device is arranged on the high-voltage resistor. This is for the bridging device no separate foundation, no own support insulator, etc.
  • Bridging device has a significant space savings, because only a foundation, a support insulator, etc. are necessary. As a result, the high-voltage resistor with the bridging device can be realized in a very compact and space-saving manner.
  • the arrangement can be designed such that the
  • Moving contact wherein the moving contact is spaced in a first position of the fixed contact and wherein the moving contact in a second position contacts the fixed contact. In the second position, the moving contact thus bridges the high-voltage resistor. In other words closes the moving contact in the second position the
  • the arrangement can also be designed so that the
  • High voltage resistor has a first terminal and a second terminal, at the first terminal of the
  • Fixed contact is arranged and arranged on the second connection of the moving contact.
  • the arrangement of the fixed contact directly on the first terminal and the arrangement of the moving contact directly on the second terminal has the particular advantage that no additional
  • High voltage resistor and the lock-up device are necessary. Rather, the fixed contact of the bridging device is at the electrical potential of the first terminal of the high-voltage resistor; of the
  • Moving contact of the bridging device is at the electrical potential of the second terminal of
  • the arrangement can also be designed so that the
  • Moving contact is designed as a contact
  • the arrangement can also be designed so that the
  • Is high-voltage resistor, and the moving contact in the second position is arranged parallel to the high-voltage resistor (and bypasses the high-voltage resistor, i.e. short-circuits).
  • the arrangement can also be designed so that the
  • the arrangement can also be designed so that the
  • High voltage resistor is supported by an insulator which is aligned coaxially with the high voltage resistor. This also allows a space-saving realization of the arrangement.
  • the arrangement can be designed such that the arrangement has a drive, in particular a motor drive, for the moving contact.
  • the arrangement can be designed so that the drive is installed at ground potential and the arrangement is an electrically insulating component (for example, an electrically insulating shaft) for transmitting a
  • the arrangement can be designed such that the
  • Such a power converter can, for example
  • Figure 1 shows an embodiment of an arrangement with a high-voltage resistor and a
  • FIG. 2 shows an embodiment of a high-voltage
  • FIG. 1 shows schematically an embodiment of an arrangement 1 with a high-voltage resistor 3 and a bridging device 5 for the high-voltage resistor 3 is shown.
  • the high voltage resistor 3 is in
  • High voltage resistor 3 Under high voltage is in the frame This description especially the voltage range> 40 kV understood. The arrangement can also be used at lower voltages.)
  • High voltage resistor 3 has a plurality of
  • Resistance elements 7 are shown in the figure 1 by way of example only two resistance elements. The
  • the high-voltage resistor 3 has a first electrical connection 10 at a first end and a second electrical connection 12 at a second end. The first
  • Terminal 10 provides an upper terminal 10 of the
  • the second terminal 12 is a lower terminal 12 of the
  • the high voltage resistor 3 is supported by an insulator 15 (post insulator 15), one end of which
  • Support insulator 15 is connected to the second terminal 12 and the other end of the support insulator 15 rests on a foundation 18, which is embedded in the substrate 20.
  • the ground 20 has ground potential, whereas the first terminal 10 and / or the second terminal 12 of the high-voltage resistor 3 during operation
  • the insulator 15 isolates the high voltage resistor 3 from the ground potential.
  • the support insulator 15 has (similar to the
  • High voltage resistor 3 on its outer surface electrical insulation screens 17.
  • the post insulator (as well as the high voltage resistor 3) has a columnar shape.
  • both the high-voltage resistor 3 and the support insulator 15 have the shape of a straight Circular cylinder with approximately the same diameter.
  • High voltage resistor 3 and the support insulator 15 are arranged coaxially, d. H. the axis of rotation of the
  • High-voltage resistor 3 coincides with the axis of rotation of the post insulator 15.
  • the high voltage resistor 3 is supported by the post insulator 15; the case
  • the bridging device 5 has a fixed contact 23 and a moving contact 25.
  • the fixed contact 23 is arranged on the first terminal 10 and conductive with this
  • a corona ring 24 is disposed adjacent to the fixed contact 23 to control the electric field strength in the vicinity of the fixed contact 23 and to avoid unwanted discharges.
  • a similar corona ring may also be arranged at the second terminal 12.
  • the moving contact 25 is at the second terminal 12
  • the moving contact 25 has the electric potential of the second terminal 12.
  • the moving contact 25 is designed as a contact arm 25, which is pivotably articulated to the second terminal 12.
  • FIG. 1 shows a first position 26 of the moving contact 25 with solid lines. At this first
  • Position is the moving contact 25 from the fixed contact 23rd
  • the moving contact 25 is radially away from the high-voltage resistor 3; there is an angle of about 90 degrees between the high voltage resistor and the moving contact 25 in its first position.
  • the moving contact 25 is arranged parallel to the high-voltage resistor 3 and bridges it electrically.
  • the moving contact 25 and the fixed contact 23 have a sufficient erosion resistance, so that by means of
  • Bridging device also a remaining current flowing in the switching time point via the high-voltage resistor (connected to an associated voltage drop across the
  • High voltage resistor can be shorted.
  • this drive 35 is a motor drive 35, which is arranged at ground potential (on the ground 20).
  • this drive 35 is a motor drive 35, which is arranged at ground potential (on the ground 20).
  • Component 38 (which, for example, as an electrical
  • the drive 35 Since the drive 35 is arranged at ground potential, its electrical control and the supply of the drive 35 with electrical energy is comparatively simple and
  • Lock-up device 5 is opened, d. H. of the
  • High voltage resistor 3 is not electrically bridged. In other words, at the first position 26 of the
  • Resistive elements 7 effective, so that the
  • High-voltage resistor 3 can be used as a dropping resistor for charging of an energy storage (for example, a self-commutated power converter). If the
  • Bridging device 5 is to be closed, then moves the drive 35 via the component 38, the moving contact 25 such that its free end along a
  • Moving contact 25 (for example, copper or aluminum).
  • the high-voltage resistor 3 is thus short-circuited at the second position 28 of the moving contact 25.
  • the moving contact 25 has at its free end
  • Knife contact 40 which enters at the second position 28 of the moving contact 25 in the designed as Einfahrness 23 fixed contact 23.
  • This retraction contact 23 has
  • V-shaped cross section female
  • the second position of the moving contact 25 can also be referred to as retracted position 28 or retracted position 28, whereas the first position of the
  • extended position 26 may be designated.
  • Bridging device 5 form a structural unit.
  • the high-voltage resistor 3 and the bridging device 5 form a resistance module with a bridging function.
  • the arrangement 1 can preferably be used to precharge one or more multiple energy storage of a self-commutated power converter can be used.
  • 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 1 ⁇ with three first three-phase three arrangements
  • DC circuit 210 has an arrangement ⁇ ⁇ ⁇ ⁇ .
  • the arrangements 1 ⁇ , 1 ⁇ ⁇ and 1 ⁇ ⁇ ⁇ are each in the embodiment as the arrangement 1 shown in Figure 1
  • 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 designed, for example, as half-bridge submodules or as full-bridge submodules.
  • the two power converters 204 and 207 are each in the embodiment as (known as such) modular multilevel inverter designed.
  • the arrangements 1 ⁇ and 1 ⁇ ⁇ as well as the DC voltage side, the arrangement 1 ⁇ ⁇ ⁇ are provided on the AC side.
  • Power converter 204 are precharged; likewise, the
  • Submodule 230 of the second power converter 207 by means of
  • High-voltage resistor of the respective arrangement limits the so-called pre-charging of the energy storage
  • Inrush current (charging current) of the energy storage.
  • Bridging device 5 of each used for charging arrangement in the open state (as shown schematically in Figure 2). As soon as an arrangement is not required for charging or precharging, the
  • High voltage resistor 3 and the lock-up device 5 are integrated in a single device. So there is a functional integration of the functions "resistance" and
  • the bridging device 5 may also be referred to as a starting device on the high-voltage resistor 3.
  • the bridging device 5 may, for example, be designed similar to a contactor for disconnecting switches which has contact-resistant contacts (so-called commutating switching contacts)
  • Bridging device 5 is also a voltage applied after charging over the resistor voltage and / or flowing after the charging process through the resistor current
  • High-voltage resistor and the high-voltage resistor short-circuiting switching device (lock-up device) has. This makes it possible to dispense with a separate circuit breaker as a bridging device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un ensemble (1) comprenant une résistance haute tension (3) destinée à la précharge d'un dispositif de stockage d'énergie (232) d'un convertisseur (204). Un dispositif de dérivation (5) permettant de court-circuiter la résistance haute tension (3) est installé sur la résistance haute tension (3).
PCT/EP2015/077762 2015-11-26 2015-11-26 Ensemble comprenant une résistance haute tension pour la précharge des condensateurs d'un convertisseur WO2017088922A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201590001641.7U CN209267435U (zh) 2015-11-26 2015-11-26 具有高压电阻的用于为自换向变流器的能量储存器预充电的预充电装置、自换向变流器和高压直流能量传输装置
PCT/EP2015/077762 WO2017088922A1 (fr) 2015-11-26 2015-11-26 Ensemble comprenant une résistance haute tension pour la précharge des condensateurs d'un convertisseur
DE212015000329.9U DE212015000329U1 (de) 2015-11-26 2015-11-26 Anordnung mit einem Hochspannungswiderstand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/077762 WO2017088922A1 (fr) 2015-11-26 2015-11-26 Ensemble comprenant une résistance haute tension pour la précharge des condensateurs d'un convertisseur

Publications (1)

Publication Number Publication Date
WO2017088922A1 true WO2017088922A1 (fr) 2017-06-01

Family

ID=54754621

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/077762 WO2017088922A1 (fr) 2015-11-26 2015-11-26 Ensemble comprenant une résistance haute tension pour la précharge des condensateurs d'un convertisseur

Country Status (3)

Country Link
CN (1) CN209267435U (fr)
DE (1) DE212015000329U1 (fr)
WO (1) WO2017088922A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019242843A1 (fr) * 2018-06-19 2019-12-26 Siemens Aktiengesellschaft Système de liaison équipotentielle pour un convertisseur modulaire à plusieurs niveaux

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1465148A1 (de) * 1964-03-12 1969-04-24 Asea Ab Widerstand fuer Hochspannung
GB1410010A (en) * 1971-10-11 1975-10-15 Reyrolle Parsons Ltd High-voltage disconnector switches
WO2012167835A1 (fr) * 2011-06-10 2012-12-13 Abb Technology Ag Procédé pour alimenter en énergie un convertisseur à maillon de chaîne, unité de commande, programmes informatiques et produits de programme informatique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1465148A1 (de) * 1964-03-12 1969-04-24 Asea Ab Widerstand fuer Hochspannung
GB1410010A (en) * 1971-10-11 1975-10-15 Reyrolle Parsons Ltd High-voltage disconnector switches
WO2012167835A1 (fr) * 2011-06-10 2012-12-13 Abb Technology Ag Procédé pour alimenter en énergie un convertisseur à maillon de chaîne, unité de commande, programmes informatiques et produits de programme informatique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019242843A1 (fr) * 2018-06-19 2019-12-26 Siemens Aktiengesellschaft Système de liaison équipotentielle pour un convertisseur modulaire à plusieurs niveaux
CN112425055A (zh) * 2018-06-19 2021-02-26 西门子能源全球有限公司 用于模块化多电平变流器的电势均衡系统
US11081972B2 (en) 2018-06-19 2021-08-03 Siemens Energy Global GmbH & Co. KG Potential equalization system for a modular multilevel converter
CN112425055B (zh) * 2018-06-19 2022-10-28 西门子能源全球有限公司 用于模块化多电平变流器的电势均衡系统

Also Published As

Publication number Publication date
CN209267435U (zh) 2019-08-16
DE212015000329U1 (de) 2018-06-29

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