WO2022083868A1 - Configuration ayant une ligne de transmission à courant continu - Google Patents

Configuration ayant une ligne de transmission à courant continu Download PDF

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Publication number
WO2022083868A1
WO2022083868A1 PCT/EP2020/079759 EP2020079759W WO2022083868A1 WO 2022083868 A1 WO2022083868 A1 WO 2022083868A1 EP 2020079759 W EP2020079759 W EP 2020079759W WO 2022083868 A1 WO2022083868 A1 WO 2022083868A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission line
voltage
direct current
power
reference potential
Prior art date
Application number
PCT/EP2020/079759
Other languages
German (de)
English (en)
Inventor
Volker BRENDLER
Felix Hacker
Ewgenij STARSCHICH
Stefan VÖLKEL
Original Assignee
Siemens Energy Global GmbH & Co. KG
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 Energy Global GmbH & Co. KG filed Critical Siemens Energy Global GmbH & Co. KG
Priority to EP20804444.6A priority Critical patent/EP4222832A1/fr
Priority to PCT/EP2020/079759 priority patent/WO2022083868A1/fr
Publication of WO2022083868A1 publication Critical patent/WO2022083868A1/fr

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Classifications

    • 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
    • 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
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems

Definitions

  • the invention relates to an arrangement with a DC transmission line and a protective device for protecting the DC transmission line. Furthermore, the invention relates to a method for limiting a voltage occurring between a DC transmission line and a reference potential by means of the protective device.
  • direct current transmission lines for example in high-voltage direct current transmission.
  • sudden events such as a lightning strike on a direct current transmission overhead line
  • the direct current transmission line being momentarily subjected to a voltage whose polarity is opposite (reversed) to that at Normal operation on the voltage applied to the DC transmission line.
  • interference voltages of opposite polarity can disrupt power transmission or even damage the DC transmission line.
  • the invention is based on the object of specifying an arrangement and a method with which a DC voltage transmission line can be protected against voltage overload.
  • An arrangement with a direct current transmission line and a protective device (protection circuit) for protecting the direct current transmission line is disclosed, in which - the protective device connects the DC transmission line to a reference potential, and
  • the protective device has at least one power thyristor and at least one power diode in a series connection, the power thyristor and the power diode having the same polarity.
  • the power thyristor and the power diode have the same polarity, ie. H . , the cathode (cathode terminal) of the power thyristor is electrically connected to the anode (anode terminal) of the power diode, or the cathode (cathode terminal) of the power diode is electrically connected to the anode (anode terminal) of the power thyristor.
  • the direct current transmission line can be protected from impermissibly high voltages depending on the polarity.
  • the series connection with the at least one power thyristor and the at least one power diode can absorb the voltage occurring during normal operation on the DC transmission line as reverse voltage in the reverse direction.
  • a voltage of opposite polarity that occurs in the event of a fault can advantageously be short-circuited by means of the power diode and the power thyristor, so that the DC transmission line is protected from this undesired voltage of opposite polarity.
  • the series connection will often have a large number of power diodes and a large number of power thyristors.
  • 10, 20 or more power diodes and power thyristors can be connected in series in the same direction.
  • the arrangement can be designed in such a way that
  • the cathode of Power diode is connected to the DC transmission line and the anode of the power thyristor is connected to the reference potential, or the cathode of the power thyristor is connected to the DC transmission line and the anode of the power diode is connected to the reference potential, or
  • the anode of the power thyristor is connected to the direct current transmission line and the cathode of the power diode is connected to the reference potential or the anode of the power diode is connected to the direct current transmission line and the cathode of the power thyristor is connected to the reference potential.
  • the protective device can therefore be used both for a transmission line with a (during normal operation) positive electrical potential relative to the reference potential and for a transmission line with a (during normal operation) negative electrical potential relative to the reference potential.
  • the only difference between these two cases is that the series connection with the at least one power thyristor and the at least one power diode have opposite polarity, d. H . have opposite polarity.
  • the arrangement can be designed in such a way that the reference potential is ground potential.
  • the arrangement can also be designed in such a way that
  • the gate connection of the power thyristor is unconnected (control-free, control circuit-free, open) and the power thyristor is designed in such a way that it ignites when a predetermined (first) threshold value of a voltage present in the forward direction across the power thyristor is exceeded, or
  • the gate terminal of the power thyristor is connected to a drive circuit that fires the power thyristor, when the forward-biased voltage across the power thyristor exceeds a predetermined (second) threshold value.
  • the arrangement can therefore in particular have two different variants.
  • the gate connection of the power thyristor is unconnected and the power thyristor is designed in such a way that it fires (ie switches on) when the (first) threshold value of the voltage present in the forward direction is exceeded.
  • the power thyristor then has what is known as a protective breakover voltage.
  • This voltage, at which the power thyristor fires, is a characteristic value of the thyristor.
  • so-called light-triggered thyristors can be used for this variant, with the gate connection remaining unconnected (the light control or light ignition is unused).
  • the gate terminal of the power thyristor is connected to a drive circuit, which fires the power thyristor as soon as the voltage that occurs across the power thyristor in the forward direction exceeds the predetermined (second) threshold value.
  • a thyristor of this type can be used, for example, what is known as an electrically triggered thyristor, the gate of which is brought out of the power thyristor and is electrically connected to the drive circuit.
  • the first threshold value and the second threshold value can preferably be of the same size.
  • the arrangement can also be designed in such a way that the protective device limits this voltage as a function of the polarity of a voltage occurring between the DC transmission line and the reference potential.
  • the protective device can therefore also be referred to as a voltage-limiting device.
  • the polarity-dependent limitation of the voltage is provided by the at least one power processing diode and the at least one power thyristor realized.
  • the protective device can be designed in such a way that the protective device is designed in such a way that it leaves a voltage of one polarity occurring between the DC transmission line and the reference potential essentially unchanged and only limits a voltage of the opposite polarity occurring between the DC transmission line and the reference potential . This makes it possible to limit only the voltage of the opposite polarity that occurs in the event of a fault, whereas a voltage of one polarity that occurs during normal operation remains essentially unchanged.
  • the protective device can also be designed in such a way that a current flows through the protective device only when the voltage to be limited of the opposite polarity occurs between the DC transmission line and the reference potential.
  • the current therefore only flows through the protective device when the voltage of the opposite polarity between the DC transmission line and the reference potential assumes impermissibly high values, ie when this voltage exceeds the threshold value, for example.
  • the voltage to be limited of the opposite polarity is short-circuited by means of the current, so that this voltage is (quickly) reduced.
  • the arrangement can also be designed in such a way that the direct current transmission line has a plastic-insulated direct current transmission line.
  • the arrangement can be used with particular advantage in a plastic-insulated DC transmission line. This is because plastic-insulated DC transmission lines can react particularly sensitively to momentary voltages which have a reverse/opposite polarity with respect to the voltage occurring on the DC transmission line during normal operation.
  • the arrangement can be designed in such a way that the DC transmission line has a plastic-insulated DC transmission line in sections and (in sections) an air-insulated DC transmission line.
  • the air-insulated DC transmission line can in particular be an overhead DC transmission line.
  • the arrangement can also be used with particular advantage in a DC transmission line designed in this way, because, for example, faults can occur particularly easily in an overhead DC transmission line, which lead to a fault-related brief reversal of the voltage polarity of the voltage present on the DC transmission line .
  • Such faults can be, for example, a lightning impulse (lightning strike) in the DC transmission overhead line or a so-called intersystem fault.
  • An intersystem fault occurs when, for example, a short circuit or a flashover occurs between the DC transmission line and an AC transmission line installed near the DC transmission line.
  • direct current transmission lines and alternating current transmission lines may be installed on a common utility pole (electricity pole).
  • the arrangement can also be designed in such a way that the protective device is arranged at (one end) of the plastic-insulated DC transmission line and/or at a connection point between the plastic-insulated DC transmission line and the air-insulated DC transmission line.
  • the plastic-insulated direct current transmission line can be protected particularly well against the voltage of the opposite polarity because the protective device is arranged directly on the direct current transmission line.
  • the arrangement can also be designed in such a way that the at least one power thyristor and the at least one power tion diode are arranged in a (common) clamping arrangement.
  • the at least one power thyristor and the at least one power diode can in particular each have disk-shaped housings, which are also referred to as disk cell housings.
  • the series connection made up of the at least one power thyristor and the at least one power diode can be implemented in a particularly simple and mechanically stable manner.
  • the arrangement can also be designed in such a way that the direct current transmission line is part of a high-voltage direct current transmission system. At the same time, this also protects the high-voltage direct current transmission system from impermissible voltage stress.
  • a high-voltage direct current transmission system with an arrangement according to one of the variants described above is also disclosed.
  • This method can be designed in such a way that only when the voltage of the opposite polarity occurs between the DC transmission line and the reference potential a current flows through the protective device and thereby the voltage with the opposite polarity is limited.
  • Figure 1 shows an exemplary embodiment of a pylon with DC transmission lines and AC transmission lines, in
  • Figure 2 shows an example curve of a voltage that occurs in the DC transmission line in the event of a fault, which is still permissible in
  • FIG. 3 shows a first exemplary embodiment of the arrangement with a power thyristor with an unconnected gate connection
  • FIG. 4 shows an exemplary embodiment of the arrangement with a thyristor whose gate terminal is connected to a drive circuit, in
  • Figure 5 shows an exemplary high-voltage direct current transmission system with two protective devices for protecting one direct current transmission line each, and in
  • FIG. 6 shows an exemplary embodiment of the mechanical structure of a series connection of power thyristors and power diodes shown .
  • FIG. 1 shows an example of a pylon 1 on which a first direct current transmission line PI and a second direct current transmission line P2 are arranged. Furthermore, a first AC transmission line LI, a second AC transmission line L2, and a third AC transmission line L3 are arranged on the pylon 1.
  • the pylon 1 thus supports both the DC transmission lines P1, P2 and the AC transmission lines LI, L2 and L3. These transmission lines are each designed as overhead lines, that is, as air-insulated transmission lines.
  • the pylon 1 is also referred to as a so-called hybrid pylon because it carries both DC transmission lines and AC transmission lines.
  • the line pole 1, shown only schematically, is on the ground 3, ie at ground potential.
  • FIG. 1 shows how a flashover (short circuit) takes place between the first DC transmission line PI and the first AC transmission line LI.
  • a fault is also known as an intersystem fault because the fault (i.e., flashover) occurs between the DC transmission system and the AC transmission system. Due to such a fault, momentary voltages can appear in the first direct current transmission line PI with a polarity which is opposite to the polarity occurring on the first direct current line during normal operation/normal event. So if the first DC line PI has a positive potential (relative to ground potential) in normal operation, a voltage can briefly occur due to the flashover shown occur with negative polarity on the first DC transmission line PI.
  • This negative polarity voltage is undesirable, can disturb DC transmission and, in particular, can even damage the first DC transmission line PI.
  • the direct current transmission line PI is designed in sections as an air-insulated overhead direct current transmission line (for example as shown in FIG. 1 as an overhead direct current line) and in sections as a plastic-insulated direct current transmission line.
  • Plastic-insulated DC transmission lines are often sensitive to transient voltages of opposite polarity and can even be permanently damaged by such voltages.
  • FIG. 2 shows an exemplary course of a voltage on a direct current transmission line.
  • an error occurs in the DC transmission line, for example the intersystem error described in connection with FIG. Due to the error, voltage oscillations arise that have both instantaneous values (instantaneous values) with positive polarity and instantaneous values with negative polarity (opposite polarity).
  • the instantaneous values with positive polarity are unproblematic.
  • the instantaneous values with negative polarity can damage the DC transmission line if they assume unacceptably large values.
  • the exemplary embodiment in FIG. 2 shows the case in which the instantaneous values of negative polarity must be limited to an amount of 100 kV because voltages of opposite polarity with an amount greater than 100 kV can damage the DC transmission line.
  • the voltage peaks of negative polarity with magnitude values greater than 100 kV are limited by means of a protective device.
  • FIG. 2 clearly shows that these voltage peaks are cut off by the protective device.
  • the course of the voltage U shown in FIG. 2 is the voltage course that is permissible on a 420 kV direct current transmission line without damaging the direct current transmission line.
  • the stated values of 420 kV and 100 kV are of course only to be understood as an example.
  • FIG. 3 shows an exemplary embodiment of an arrangement 300 with a direct current transmission line 303 and a protective device 306 (protective circuit 306) for protecting the direct current transmission line 303 .
  • the protection device 306 connects the DC transmission line 303 to a reference potential 310 .
  • the reference potential 310 is the ground potential 310 .
  • the protective device 306 has at least one power diode 320 and one power thyristor 322 in a series connection. In this series connection, the power diode 320 and the power thyristor 322 have the same polarity .
  • the cathode KT of the power thyristor 322 is electrically connected to the anode AD of the power diode 320.
  • the cathode KD of the power diode 320 is electrically connected to the DC transmission line 303; the anode AT of the power thyristor 322 is electrically connected to the reference potential 310 .
  • FIG. 3 shows only one power diode and one power thyristor connected in series.
  • a plurality of power diodes and/or a plurality of power thyristors are generally electrically connected in series in order to achieve the dielectric strength required in each case.
  • the direct current transmission line 303 is used for high-voltage direct current transmission, a large number of power thyristors and/or power diodes are therefore electrically connected in series.
  • only one power diode and one power thyristor are shown in each of the figures.
  • the gate connection GT of the power thyristor 322 is unconnected (free of control, free of control circuit, open).
  • the power thyristor 322 is designed in such a way that it fires when the voltage U2 present in the forward direction across the power thyristor exceeds a predetermined first threshold value. This behavior is also referred to as the functionality of a protective ignition voltage (protective breakover voltage). This functionality is not achieved by actively controlling the thyristor, but by the internal structure of the semiconductor structure in the gate of the thyristor.
  • a light-triggered power thyristor (LTT, Light Triggered Thyristor), for example, can be used as such a power thyristor, the light-conducting control input of which remains unused.
  • This thyristor is normally (i.e. during normal operation of the DC transmission line 303) in its blocked (unfired, non-fired) state. switched) state, i . H .
  • the voltage U2 can build up across the thyristor in the forward direction as long as it does not exceed the predetermined first threshold value.
  • This voltage Ul is the blocking voltage across the series connection of the at least one power diode 320 and the at least a power thyristor 322 and is blocked by the power diode and the power thyristor. In the normal case, therefore, no current flows through the protective device 306 and the protective device 306 leaves the voltage Ul essentially unchanged.
  • the voltage U2 of opposite polarity is present at the series connection of the at least one power diode 320 and the at least one power thyristor 322 (fault, fault). falls this chip Voltage of opposite polarity U2 essentially across the power thyristor 322 from. This is indicated in FIG. 3 by the voltage of opposite polarity U 2 occurring in the event of a fault being present across the power thyristor 322 . As soon as the magnitude of this voltage exceeds the predetermined threshold value (here the value 100 kV), the power thyristor 322 ignites, d. H . he turns on .
  • the predetermined threshold value here the value 100 kV
  • a current I then flows through the protection device 306 in the forward direction of the power thyristor 322 (and in the forward direction of the power diode 320 ).
  • This current I flows from the reference potential 310 through the protective device 306 to the direct current transmission line 303 and short-circuits the voltage U2 occurring on the direct current transmission line due to the error.
  • the voltage of opposite polarity U2 occurring on the direct current transmission line 303 cannot become greater than the predetermined threshold value, in the example not greater than ⁇ 100 kV.
  • the current I flows through the protective circuit 306 only when the voltage U2 to be limited of the opposite polarity occurs between the direct current transmission line 303 and the reference potential 310 .
  • the protective device With the voltage Ul that occurs during normal operation, no current flows through the protective device, i . H . , the protective device is essentially de-energized during normal operation.
  • the protective device 306 therefore limits this voltage as a function of the polarity of the voltage occurring between the direct current transmission line 303 and the reference potential 310 .
  • the protective device 306 can therefore also be referred to as a voltage limiting device 306 .
  • the protective device 306 only limits the voltage of the opposite polarity occurring between the DC transmission line 303 and the reference potential 310 (in the exemplary embodiment, the voltage U2), whereas the voltage of the other polarity Ul im occurring between the DC transmission line 303 and the reference potential 310 is left substantially unchanged.
  • the protective device can be adapted to a wide variety of voltage conditions.
  • the protective device can therefore be implemented in such a way that it is suitable for different steady-state voltage loads due to the voltage U1 and different loads due to the voltage of the opposite polarity U2.
  • FIG. 4 shows a further exemplary embodiment of an arrangement 400 with the direct-current transmission line 303 and a protective device 406 .
  • the protection Device 406 differs from the protective device 306 shown in FIG. 3 in that the gate terminal GT of the power thyristor 422 is not unconnected as in FIG. Rather, the gate connection GT of the power thyristor 422 is connected to a drive circuit 430 which drives the power thyristor 422 .
  • the drive circuit 4 is also electrically connected to the cathode KT and the anode AT of the power thyristor 422 .
  • the control circuit 430 is supplied with electrical energy by the voltage U 2 dropping across the power thyristor 422, ie. H .
  • the drive circuit 430 obtains the energy it needs for operation from the voltage U2.
  • the drive circuit 430 measures the magnitude of the voltage U2 dropping across the power thyristor 422 .
  • the drive circuit 430 sends an ignition signal Z (for example an ignition pulse Z) to the gate terminal GT of the power thyristor 422, thereby igniting the power thyristor ristor .
  • the voltage present across the power thyristor 422 is limited to a voltage value which corresponds to the predetermined threshold value (ie to 100 kV here).
  • the triggering signal Z can be, for example, an optical triggering signal or an electrical triggering signal (depending on the type of power thyristor).
  • the control circuit 430 can optionally also be used to monitor the power thyristor.
  • an electrically triggerable power thyristor also called ETT (Electrically Triggered Thyristor)
  • ETT Electrically Triggered Thyristor
  • the thyristor 422 is therefore actively triggered by the control circuit 430 .
  • the protective device 406 (like the protective device 306 shown in FIG. 3) works autonomously and is not dependent on external signals. A particularly high level of reliability is therefore achieved. It applies to the exemplary embodiments in FIGS. 3 and 4 that the electrical blocking capability of the protective device 306 or 406 for the stationary voltage Ul that is present in the normal case essentially by the number of thyristors 322 or 322 connected in series. 422 is reached.
  • the voltage of opposite polarity that occurs in the event of a fault is limited by the (first) threshold value for the ignition inherent in the power thyristor 322, and in the exemplary embodiment in Figure 4 by the (second) threshold value at which the control circuit 430 outputs the ignition signal Z.
  • each power thyristor is preferably assigned its own drive circuit. Each control circuit is then connected to the power thyristor as shown in FIG.
  • FIG. 5 shows an exemplary embodiment of a high-voltage direct-current transmission system 500 .
  • This high-voltage direct current transmission system 500 has two power converters 503 which each have a first AC connection 505 , a second AC connection 507 , a third AC connection 509 , a first DC connection 516 and a second DC connection 517 .
  • the first direct current connections 516 of the two power converters 503 are electrically connected to one another by means of the direct current transmission line 303 .
  • the second direct current connections 517 of the two power converters 503 are electrically connected to one another by means of a further direct current transmission line 303'.
  • the protective device 306 is arranged on the transmission line 303 .
  • a further protective device 306' is arranged on the further DC transmission line 303'.
  • the DC transmission line 303 consists of two different sections: the DC transmission line 303 has a plastic-insulated DC transmission line 515 in a first section and an air-insulated DC transmission line 520 (DC transmission overhead line 520 ) on .
  • the protective device 306 is arranged at the connection point 525 between the plastic-insulated direct current transmission line 515 and the air-insulated direct current transmission line 520 .
  • the protective device 306 is therefore arranged at one end of the plastic-insulated DC transmission line 515; in particular, the protective device 306 is arranged at the connection point 525 between the plastic-insulated DC transmission line 515 and the air-insulated DC transmission line 520 .
  • the further DC transmission line 303' also has a plastic-insulated DC transmission line and an air-insulated DC transmission line.
  • the further protective device 306' is arranged at a connection point 525' between the plastic-insulated direct current transmission line and the air-insulated direct current transmission line.
  • the direct-current transmission line 303 has a positive electric potential (+Udc) compared to the reference potential 310 . Therefore, in the protective device 306, the power thyristor 322 and the power diode 320 are poled as in FIG. shown in FIG. In contrast to this, the further DC transmission line 303′ has a negative electric potential ( ⁇ Ude) compared to the reference potential 310 . Therefore, in the further protection device 306 'the power thyristor 322' and the power diode 320' are switched in reverse polarity. This means that the cathode of the power thyristor 322 ′ or the cathode of the power diode 320 ′ are electrically connected to the reference potential 310 . In this way, both the direct current transmission line 303 with the positive electrical potential and the further direct current transmission line 303' with the negative electrical potential can be protected from impermissible voltages.
  • the protective device 406 according to FIG. 4 can also be used.
  • FIG. 6 shows an exemplary embodiment of a series circuit 600 made up of power thyristors 322 and power diodes 320 .
  • the power thyristors 322 and power diodes 320 are each designed as disc cell components, for example, ie. H . they each have a disc-shaped housing. Such a housing is also referred to as a disc cell housing. This housing has an essentially circular-cylindrical shape.
  • 4 power thyristors 322 and 4 power diodes 320 are arranged in a clamping arrangement.
  • the 4 power thyristors 322 and 4 power diodes 320 are braced (axially) against one another, which is indicated by two arrows F.
  • the two arrows F symbolize the mechanical clamping forces.
  • An electrical connection 605 of the series circuit is arranged at each of the two ends of the clamping assembly. In this case, the electrical connections 605 form the electrical connections of the series circuit 600 .
  • the electrical series circuit made up of the at least one power thyristor and the at least one power diode can be implemented in a particularly simple and mechanically stable manner by means of the clamping assembly. An arrangement and a method have been described with which a DC transmission line can be protected against a voltage overload.
  • the voltage limitation of the protective device can be set relatively precisely, so that the DC transmission line can be reliably protected.
  • the relevant thyristors may breakdown, i .e . H . the thyristor becomes permanently conductive in both directions.
  • the protective effect of the protective device is retained, because in the event of a fault the thyristors are fired anyway (and thus become electrically conductive).
  • protective devices which use surge arresters, for example, as protective elements, there is no guarantee that the protective effect will be maintained even if these protective elements fail.
  • Diodes and thyristors are often very similar in their external structure; For example, they can each be in the form of disc cell components (similar in terms of their external dimensions).
  • the protective device can be implemented particularly easily in such a way that the power diodes and the power thyristors are arranged in a clamping arrangement. Both the power thyristors and the power diodes are preferably each designed as disk cell components.
  • the protective device can be set up both indoors and outdoors. reference sign

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  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne une configuration (300) comprenant une ligne de transmission de courant continu (CC) et un dispositif de protection (306) pour protéger la ligne de transmission CC (303). Le dispositif de protection (306) relie la ligne de transmission CC (303) à la masse (310). Le dispositif de protection (306) comprend au moins un thyristor de puissance (322) et au moins une diode de puissance (320) dans un circuit en série, le thyristor de puissance (322) et la diode de puissance (320) ayant la même polarité.
PCT/EP2020/079759 2020-10-22 2020-10-22 Configuration ayant une ligne de transmission à courant continu WO2022083868A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20804444.6A EP4222832A1 (fr) 2020-10-22 2020-10-22 Configuration ayant une ligne de transmission à courant continu
PCT/EP2020/079759 WO2022083868A1 (fr) 2020-10-22 2020-10-22 Configuration ayant une ligne de transmission à courant continu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2020/079759 WO2022083868A1 (fr) 2020-10-22 2020-10-22 Configuration ayant une ligne de transmission à courant continu

Publications (1)

Publication Number Publication Date
WO2022083868A1 true WO2022083868A1 (fr) 2022-04-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039170A (en) * 1979-01-05 1980-07-30 Paris & Du Rhone Overvoltage protection device
EP0031594A2 (fr) * 1979-12-28 1981-07-08 Asea Ab Installation de transmission de courant continu à haute tension
DE102009022832A1 (de) * 2008-10-21 2010-04-22 Dehn + Söhne Gmbh + Co. Kg Mehrstufige Überspannungsschutzschaltung, insbesondere für informationstechnische Anlagen
EP2874184A1 (fr) * 2013-11-19 2015-05-20 Analog Devices, Inc. Appareil et procédé pour protéger des circuits intégrés RF et à micro-ondes
EP3565075A1 (fr) * 2016-12-28 2019-11-06 Shenzhen Bencent Electronics Co., Ltd. Circuit de protection contre les surcharges et dispositif électronique utilisant le circuit
WO2020015820A1 (fr) * 2018-07-17 2020-01-23 Siemens Aktiengesellschaft Procédé et dispositif pour détecter un défaut dans une ligne de transport d'énergie électrique en courant continu haute tension et pour générer un signal de déclenchement destiné à un disjoncteur à courant continu

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039170A (en) * 1979-01-05 1980-07-30 Paris & Du Rhone Overvoltage protection device
EP0031594A2 (fr) * 1979-12-28 1981-07-08 Asea Ab Installation de transmission de courant continu à haute tension
DE102009022832A1 (de) * 2008-10-21 2010-04-22 Dehn + Söhne Gmbh + Co. Kg Mehrstufige Überspannungsschutzschaltung, insbesondere für informationstechnische Anlagen
EP2874184A1 (fr) * 2013-11-19 2015-05-20 Analog Devices, Inc. Appareil et procédé pour protéger des circuits intégrés RF et à micro-ondes
EP3565075A1 (fr) * 2016-12-28 2019-11-06 Shenzhen Bencent Electronics Co., Ltd. Circuit de protection contre les surcharges et dispositif électronique utilisant le circuit
WO2020015820A1 (fr) * 2018-07-17 2020-01-23 Siemens Aktiengesellschaft Procédé et dispositif pour détecter un défaut dans une ligne de transport d'énergie électrique en courant continu haute tension et pour générer un signal de déclenchement destiné à un disjoncteur à courant continu

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