WO2023217505A1 - Dispositif et procédé d'adaptation d'un angle de phase d'une tension dans une ligne de transmission - Google Patents

Dispositif et procédé d'adaptation d'un angle de phase d'une tension dans une ligne de transmission Download PDF

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Publication number
WO2023217505A1
WO2023217505A1 PCT/EP2023/060216 EP2023060216W WO2023217505A1 WO 2023217505 A1 WO2023217505 A1 WO 2023217505A1 EP 2023060216 W EP2023060216 W EP 2023060216W WO 2023217505 A1 WO2023217505 A1 WO 2023217505A1
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WO
WIPO (PCT)
Prior art keywords
phase angle
voltage
tap changer
load tap
phase
Prior art date
Application number
PCT/EP2023/060216
Other languages
German (de)
English (en)
Inventor
Sebastian Rehkopf
Markus Riepl
Christian Hurm
Original Assignee
Maschinenfabrik Reinhausen Gmbh
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 Maschinenfabrik Reinhausen Gmbh filed Critical Maschinenfabrik Reinhausen Gmbh
Publication of WO2023217505A1 publication Critical patent/WO2023217505A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1807—Arrangements for adjusting, eliminating or compensating reactive power in networks using series compensators
    • H02J3/1814—Arrangements for adjusting, eliminating or compensating reactive power in networks using series compensators wherein al least one reactive element is actively controlled by a bridge converter, e.g. unified power flow controllers [UPFC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1878—Arrangements for adjusting, eliminating or compensating reactive power in networks using tap changing or phase shifting transformers

Definitions

  • the invention relates to a device for adjusting a phase angle of a voltage in a transmission line of a power supply network and a method for adjusting a phase angle of a voltage in a transmission line of a power supply network.
  • phase shifter transformers are special power transformers that can specifically influence the phase angle of the voltage or the electrical load flow via an overhead line by introducing a transverse voltage or an oblique voltage.
  • phase-shifting transformers are equipped with on-load tap changers which are designed for uninterrupted switching between winding taps of a control winding of the phase-shifting transformer.
  • the main difference to mains transformers is the connection of the individual windings to each other. Since the control here is not about the voltage level, the control range of the on-load tap changer is specified in degrees.
  • phase-shifting transformers Various applications for phase-shifting transformers are known from the prior art.
  • the classic application is load flow control over two parallel overhead lines. If two overhead lines are operated in parallel in order to transmit higher power, the load distribution between the two lines depends on the length of the lines and their cross section. A natural load flow occurs over both lines according to their line impedances.
  • the load flow can be changed by using a phase shifter transformer that applies a cross voltage to one of the two lines. This makes it possible to optimize the load flow over both lines and thus achieve the same utilization of both lines as possible.
  • phase shifter transformer is used to throttle or increase the flow of energy via an overhead line that connects two networks. This gives the energy network operator the opportunity to control energy flows, even if he has no influence on their generation.
  • phase shifter transformer It is also possible to couple two networks via a phase shifter transformer have the same frequency but a different phase position. This may be necessary, for example, when rebuilding a network when individual network bubbles need to be connected.
  • Phase-shifting transformers in particular have certain disadvantages here, as they have to be designed for a specific control range long in advance before they are put into operation in a substation and also have to be installed in a fixed location due to their size. They therefore offer little flexibility when it comes to reacting to changes in the network topology.
  • the improved concept is based on the idea of supplementing a classic phase shifter transformer with an on-load tap changer with another series-connected feed module, which is also designed to adjust the phase angle by feeding a voltage into the transmission line, in order to increase the control range of the angular degree and This allows us to react more flexibly to changes in the network topology and increase the transport capacity of the energy supply network.
  • a device for adjusting a phase angle of a voltage in a transmission line of a power supply network comprises a phase shifter transformer which has an on-load tap changer and is arranged in the transmission line.
  • the phase shifter transformer is designed to adjust the phase angle of the voltage using the on-load tap changer.
  • the phase shifter transformer has at least one control winding with winding taps, which are connected through the On-load tap changers can be connected without interruption.
  • the on-load tap changer has a corresponding number of stages, each of which is assigned to a winding tap.
  • the phase angle is changed at least by a certain angular degree, in particular an angular degree greater than one, preferably greater than three degrees.
  • the phase angle which can be adjusted by the control range of the on-load tap changer, is in a range from 1 to, for example, 15 degrees, preferably in a range from 1 to 20 degrees, particularly preferably in a range from 1 to 25 degrees.
  • the on-load tap changer usually has mechanical switching contacts and switching resistors. The switching contacts are designed, for example, as vacuum interrupters.
  • the duration of a changeover i.e. the duration for adjusting the phase angle using the on-load tap changer, is more than one second.
  • phase shifter transformer can be designed in any way.
  • the phase shifter transformer essentially consists of an iron core, several copper windings, oil-paper insulation, a steel boiler, bushings and all other components and auxiliary devices that also have transformers for the usual application, namely the conversion of alternating voltages.
  • the phase shifter transformer can have a single-core or a dual-core design depending on the application.
  • a single-core design the phase shift is achieved with just one iron core.
  • a dual core design uses two separate iron cores, either both installed in the same boiler or in two separate boilers.
  • the phase shifter transformer has a two-core design consisting of a series transformer and an excitation transformer, each of which is arranged on a core.
  • the excitation transformer has a primary side and a secondary side comprising at least one control winding with winding taps and an on-load tap changer for uninterrupted switching between the winding taps.
  • a voltage is coupled out on the primary side via the excitation transformer, and this is regulated in size on the secondary side via the control winding and the on-load tap changer as an additional voltage.
  • this additional voltage generated in the excitation transformer is connected in a delta. This results in a phase shift of the additional voltage of 90 degrees compared to that Input voltage at the phase shifter transformer.
  • the device comprises a feed module, which is arranged in series with the phase shifter transformer in the transmission line and is designed to adapt a phase angle to a voltage, and a control unit.
  • the control unit is designed to determine a request for adjusting the phase angle between an input voltage and an output voltage of the electrical device within a predetermined period of time and then adjust the phase angle by means of the feed module if the required adjustment of the phase angle includes an angular degree that exceeds the control range of the on-load tap changer, for example if the on-load tap changer is already in an end position, and/or if the predetermined time period for the adjustment of the phase angle is smaller than a time period within which the phase angle can be adjusted by means of the on-load tap changer, for example within a few hundred microseconds up to a maximum of one second, and / or if the required adjustment of the phase angle includes an angle degree that is smaller than a phase angle that can be adjusted by means of the on-load tap changer by switching from a winding tap to an adjacent winding tap of the control winding of the phase shifter transformer. This is the case, for example, if the required adjustment of the phase angle includes an angle between 0.1 and 3 degrees.
  • phase angle is adjusted using the on-load tap changer in the phase shifter transformer.
  • the advantage of the device of the improved concept is that an existing phase shifter transformer can be easily retrofitted with one or more feed module(s) when the network topology changes, depending on requirements and space availability.
  • At least one additional feed module enables an additional adjustment of the phase angle that goes beyond the control range of the on-load tap changer. An additional phase shift can thus be generated between the input voltage and the output voltage of the device.
  • feed module can react particularly quickly, especially in the millisecond range, to network fluctuations or changes in the network topology due to the power electronics-based switching technology.
  • phase angle can only be adjusted slightly, for example in an angle degree range of 0.1 to 3, and can therefore be regulated particularly finely.
  • the phase shifter is designed as a transverse regulator or as an inclined regulator.
  • the phase shifter transformer is designed as a transverse regulator and has a two-core design consisting of a series transformer and an excitation transformer, each of which is arranged on a core.
  • the excitation transformer has a primary side and a secondary side comprising at least one control winding with winding taps and an on-load tap changer for uninterrupted switching between the winding taps.
  • a voltage is coupled out via the excitation transformer on its primary side and this is regulated in size on the secondary side via the control winding and the on-load tap changer as additional voltage.
  • this additional voltage generated in the excitation transformer is connected in a delta. This results in a phase shift of the additional voltage by 90 degrees compared to the input voltage at the phase shifter transformer.
  • the electrical device has at least a first sensor which is arranged towards a first end of the transmission line and at least one second sensor which is arranged towards a second end of the transmission line.
  • the sensors are designed as current and/or voltage converters.
  • control unit comprises a signal interface which is designed to record current and voltage measurements from the sensors as well as signals from a higher-level communication system.
  • control unit is designed to respond to the request for adjusting the phase angle based on a signal from the higher-level communication system or locally based on the current and voltage measurement values of the sensors or based on a combination of local current and voltage measurement values and a signal from the higher-level communication system.
  • the higher-level communication system can be designed, for example, as a control center, as a system for fleet monitoring of a large number of electrical resources, or as an equipment-related monitoring system.
  • a corresponding signal can occur from outside if a remote short circuit occurs in the energy supply network, which requires rapid regulation of the load flow, or, for example, if there is a need for rapid load flow regulation in order to ensure the stability of the network in the event of a failure of an equipment or a circuit to continue to ensure, as the (n-1) rule provides for the operation of power grids.
  • control unit can be arranged on a housing of the phase shifter transformer or on a housing of the feed module. It is also possible to arrange the control unit separately at any location within a system in which the device is located, for example in a substation of a power supply network, in particular in the station building of a substation.
  • the feed module has a capacitor and/or a power electronic converter.
  • the capacitor provides reactive power for controlling the load flow in the transmission line, which is regulated by the power electronic converter such that the phase angle between the input voltage of the feed module and the output voltage of the entire device is adjusted by a certain degree of angle.
  • the power electronic converter comprises at least one power electronic switching element, which can be designed as an IGBT, GTO thyristor, triac, MOSFET and/or other power electronic switching elements and/or combinations thereof.
  • the feed module can react particularly quickly, for example in less than a second, preferably within 20 milliseconds, to network fluctuations or changes in the network topology.
  • the feed module further comprises a series transformer and/or an energy storage device and/or a bypass unit.
  • the bypass unit serves to bridge the converter or the at least one power electronic switching element in order to minimize losses of the power electronic switching element.
  • the bypass unit serves to bridge the fault-related short-circuit current, which could damage the sensitive, power electronic switching elements of the converter.
  • the bypass unit includes, for example, a resistor that is switched on via a switching element arranged in series.
  • the switching element can, for example, be a semiconductor switching element, preferably a thyristor, or a mechanical switching element, e.g. B. a vacuum switching cell.
  • active power is provided via the energy storage device in order to stabilize the network frequency.
  • the active power flow between the transmission line and the energy storage is regulated via the power electronic converter.
  • the energy storage can be designed, for example, as a battery or as at least one power cap.
  • the feed module can have a series transformer via which the adapted voltage is coupled into the transmission line and which ensures galvanic isolation between the power electronic converter and the transmission line.
  • the feed module has a capacitor and a single power electronic switching element.
  • the power electronic switching element is preferably designed as a triac.
  • the feed module can be expanded to include any number of identically constructed feed modules in series and parallel to one another.
  • the identically constructed feed modules can be arranged in series and/or parallel.
  • the device is designed to be three-phase. According to a further embodiment, the device is designed to be three-phase and has at least one first sensor per phase in the direction of a first end of the three-phase transmission line and at least one second sensor in the direction of a second end of the three-phase transmission line.
  • a method for adjusting a phase angle of a voltage in a transmission line of a power supply network using an electrical device comprises a phase shifter which has an on-load tap changer and is arranged in the transmission line and is designed to adjust a phase angle of a voltage by means of the on-load tap changer. Furthermore, the device comprises a feed module, which is arranged in series with the phase shifter in the transmission line and is designed to adapt a phase angle to a voltage, and a control unit.
  • the method has the following steps: In a first step, a request for adjusting the phase angle between an input voltage and an output voltage of the electrical device within a predetermined period of time is determined by means of the control unit.
  • the phase angle is adjusted using the feed module if the required adjustment of the phase angle includes an angle that goes beyond the control range of the on-load tap changer and/or if the predetermined time period for adjusting the phase angle is smaller than a time period, within which the adjustment of the phase angle can take place using the on-load tap changer, and/or if the required adjustment of the phase angle includes an angle degree that is smaller than a phase angle that can be adjusted using the on-load tap changer.
  • the phase angle is adjusted using the on-load tap changer.
  • the request is determined Adjusting the phase angle between the input voltage and the output voltage of the electrical device within a predetermined period of time based on a signal from a higher-level communication system or locally based on current and voltage measurements measured by sensors arranged towards a first end and towards a second end of the transmission line or based on a combination of local current and voltage measurements as well as a signal from the higher-level communication system.
  • Figure 1 shows an exemplary embodiment of a device according to the improved concept in a schematic representation
  • FIG. 2 shows a further exemplary embodiment of a device according to the improved concept in a schematic representation
  • FIG. 3 shows a further exemplary embodiment of a device according to the improved concept in a schematic representation
  • Figure 6 shows another vector diagram according to the improved concept
  • Figure 7 shows a flowchart of an exemplary embodiment of a method according to the improved concept.
  • the device 1 in Figure 1 is shown as a single-phase Device formed. However, it can also be designed in two or three phases.
  • the transmission line 2 is shown here in a simplified and schematic manner and leads from a first end 10 and to a second end 11.
  • the two ends 10 and 11 can include any nodes and / or systems of the energy supply network.
  • the first end 10 and the second end 11 can each represent a substation of the energy supply network.
  • the device 1 comprises a phase shifter transformer 3, which is arranged in the transmission line 2 and is designed to adapt the phase angle of a voltage.
  • the phase shifter transformer 3 has an on-load tap changer 13.
  • the device 1 has a feed module 4, which is arranged in series with the phase shifter transformer 3 in the transmission line 2 and is also designed to adapt the phase angle of a voltage.
  • the device 1 also includes a total of four sensors.
  • the sensors 6 and 7 are arranged in the direction of the first end 10 of the transmission line 2, more precisely between the first end 10 and the phase shifter transformer 3.
  • Sensor 6 is designed as a current transformer and measures the amount and phase of the current flowing through the transmission line 2 at the input of the Device 1.
  • Sensor 7 is designed as a voltage converter and measures the voltage in magnitude and phase that is present at the input of device 1 on transmission line 2.
  • the sensors 8 and 9 are arranged in the direction of the second end 11 of the transmission line 2, more precisely between the feed module 4 and the second end 11 of the transmission line 2.
  • the sensor 8 is designed as a current transformer and measures the amount of current flowing through the transmission line 2 and phase at the end of the device 1.
  • Sensor 9 is designed as a voltage converter and measures the magnitude and phase of the voltage that is present at the output of the device 1 on the transmission line 2.
  • the device 1 further comprises a control unit 5, which is designed to determine a request for adjusting the phase angle between the input voltage measured by the sensor 7 and the output voltage of the device 1 measured by the sensor 9 within a predetermined period of time, and then, depending on the size of the phase angle to be adjusted and the predetermined period of time within which the phase angle is to be adjusted, either the on-load tap changer 13 or the feed module 4 to actuate the phase angle.
  • the control unit 5 determines that an adjustment of the phase angle is required based on the current and voltage values measured by the sensors 6, 7, 8, 9 and/or based on a signal higher-level communication unit 14, for example a control center.
  • the control unit 5 has a signal interface 12 to receive these measured values and signals.
  • the feed module 4 comprises a power electronic converter 16, a capacitor 15, an energy storage 18, a series transformer 17 and a bypass unit 19.
  • the capacitor 15 provides reactive power for controlling the load flow in the transmission line, which is regulated by the power electronic converter 16, such that the phase angle between the voltage present at the input of the feed module 4 and the output voltage of the entire device 1 is adjusted by a certain angular degree.
  • the power electronic converter 16 comprises at least one power electronic switching element, which can be designed as an IGBT, GTO thyristor, triac and/or combinations thereof.
  • the adjusted voltage is coupled into the transmission line 2 via the series transformer 17.
  • the energy storage 18 provides the required active power when required.
  • the active power flow between the transmission line 2 and the energy storage 18 is regulated via the power electronic converter 16.
  • the bypass unit 19 serves to bridge the at least one power electronic switching element of the converter 16 when the feed module 4 is in standby mode, or in the case of fault-related short-circuit currents.
  • Figure 2 shows a further exemplary embodiment of a device according to the improved concept in a schematic representation.
  • the device 1 from FIG. 2 reference is made to the previous explanations of the device from FIG. 1 in an analogous manner and only the differences from the device from FIG.
  • the feed module 4 comprises a power electronic converter 16, a capacitor 15, an energy storage 18 and a bypass unit 19. Accordingly, in this embodiment there is no need for a series transformer and the changed voltage is coupled directly into the transmission line 2. For practical implementation in the substation, this means that a larger space requirement must be planned for the feed module, as additional insulators, surge arresters, varistors, etc. are required to maintain the necessary insulation distances.
  • Figure 3 shows a further exemplary embodiment of a device according to the improved concept in a schematic representation. With regard to the device 1 from FIG. 3, reference is made to the previous explanations of the device from FIGS. 1 and 2 in an analogous manner and only the differences will be discussed below.
  • the feed module 4 comprises a capacitor 15, which is arranged in series with the phase shifter transformer 3 in the transmission line 2, and a single power electronic switching element 20, in particular a triac switch, which is arranged in parallel to the capacitor 15 and short-circuits it.
  • the reactive power that the capacitor 15 provides is regulated here by the duty cycle of the short-circuited switching element 20. If the switching element 20 is switched on, no phase shift is generated. If the switching element 20 is switched off, a maximum phase shift is achieved.
  • FIG. 4 a further exemplary embodiment of a device according to the improved concept is shown in a schematic representation.
  • the device 1 from FIG. 4 reference is made to the previous explanations of the device from FIGS. 1 to 3 in an analogous manner and only the differences will be discussed below.
  • the device 1 is designed as a three-phase system. Accordingly, three parallel transmission lines 2 are provided, which connect a first end 10 with a second end 11, the ends 10 and 11 being substations of a power supply network. Furthermore, a current and/or a voltage sensor 6, 7 is arranged in each transmission line in the direction of the first end 10 and a current and/or a voltage sensor 8, 9 in the direction of the second end 11 of the transmission lines 2.
  • the device 1 has a phase shifter transformer 3, which consists of two transformers, a series transformer 22 and an excitation transformer 21.
  • the excitation transformer 21 has a primary side and a secondary side with a control winding and an on-load tap changer 13 per phase and serves to have one on its primary side To decouple voltage, for example 220 kV, and to regulate the size of this additional voltage on its secondary side using the on-load tap changer 13 on the control winding.
  • the on-load tap changer 13 has 20 stages for this purpose. The choice of stage determines the phase angle between the input voltage and the output voltage of the Exciter transformer 21 adapted.
  • the additional voltage generated and regulated in the excitation transformer 21 is connected again in a delta, which results in a phase shift of the additional voltage by 90 degrees.
  • the phase-shifted additional voltage is coupled back into the transmission lines 2 via the series transformer 22.
  • the device has three feed modules 4, one feed module 4 being arranged in a transmission line 2 parallel to the other two feed modules 4 and each in series with the phase shift transformer 3.
  • the phase angle which is set via the on-load tap changer 13 via the position of the respective stage, can be further adjusted, in particular continuously, in each phase L1, L2, L3, and so can the output voltage of the device 1, i.e. the voltage at the second end 11, can be further adjusted if the conditions for this are met.
  • Both the on-load tap changer 13 and the feed modules 4 are operated by the control unit 5.
  • the embodiment shown in Figure 4 can also be designed as an inclined regulator, which feeds an additional voltage shifted by 60 degrees into the transmission lines 2 instead of 90 degrees.
  • FIG. 5a shows a vector diagram which exemplifies a state of the device 1 in which the on-load tap changer 13 is in an end position in which it feeds the maximum additional voltage U s ti into the transmission power, i.e. the maximum that can be achieved via the on-load tap changer 13 Phase angle q>i is set. This is done by regulating the size of the additional voltage U s ti in the phase shifter transformer 3. The on-load tap changer 13 is therefore in an end position in which its control range is fully exhausted and it cannot increase the phase angle epi any further.
  • phase angle epi should be further increased or reduced, but this adjustment should take place particularly quickly, for example within a few tenths of a millisecond, or also in the case that the phase angle epi should only be adjusted slightly, in such a way that This adjustment cannot be carried out with the on-load tap changer 13, since switching from one winding tap to an adjacent winding tap of the control winding, ie from one stage to a next stage of the on-load tap changer, would produce too large a change in the degree of angle, which can now be arranged in series in the transmission line 2 Feed module 4 can be used to adjust the phase angle epi.
  • a new additional voltage U S ii is generated based on the voltage L1 ', which is present at the output of the phase shifter transformer 3, and is also fed into the transmission line 2.
  • the phase angle (p between the input voltage L1 and the output voltage L1 "of the device 1 is finally further adjusted and can be continuously increased (q> 2 ) or reduced (q> 3 ).
  • the phase angle, which can be continuously adjusted by means of the feed module 4 is between 0.1 and 3 degrees.
  • the phase angle (p between the input voltage and the output voltage of the device 1 is in a total range of +/- 30 degrees.
  • 5b shows a vector diagram which exemplifies a state of the device 1 in which the on-load tap changer 13 is in an end position in which it does not feed in any additional voltage U s ti and therefore no adjustment of the phase angle by the on-load tap changer 13, but rather solely through the feed module 4. Consequently, the voltage L1 ', which is present at the output of the phase shifter transformer 3, corresponds to the input voltage L1 of the device 1.
  • An additional voltage U S ii is fed into the transmission line 2 via the feed module 4 and the phase angle q>2 or q) 3 between the input voltage L1 and the output voltage L1 “of the device 1 changed.
  • Figure 6 shows another phasor diagram according to the improved concept, which, however, relates to a skew regulator which produces a 60 degree phase shift between the input voltage and the additional voltage impressed into the transmission line 2.
  • a phasor diagram of a transverse regulator with the difference that in this case a 90 degree phase shift is generated between the input voltage and the additional voltage impressed into the transmission line 2.
  • the vector diagram from Figure 6 gives an exemplary state of the device 1, in in which a phase angle epi is set via the on-load tap changer 13, which lies in the middle range of the control range of the on-load tap changer 13, so the on-load tap changer 13 is not in an end position here. This is done by regulating the size of the additional voltage U s ti on the control winding.
  • the phase angle epi can also be further adjusted here via the feed module 4. Starting from the voltage L1 ', which is present at the output of the phase shifter transformer 3, a new additional voltage U S ii is generated by the feed module 4 and also fed into the transmission line 2. Depending on the size of this voltage U S ii, the phase angle (p between the input voltage L1 and the output voltage L1 "of the device 1 is finally further adjusted and can be increased (q> 2 ) or reduced (q> 3 ).
  • Figure 7 shows a flowchart of an exemplary embodiment of a method according to the improved concept. The method is preferably carried out using a device 1 according to one of the embodiments explained in connection with FIGS. 1 to 4.
  • step a the control unit 5 receives current and voltage measurement values from the sensors 6, 7, 8, 9 via its signal interface 12, based on which the control unit 5, in a subsequent step b, receives a request to adjust the phase angle (p between an input voltage and an output voltage of the electrical device 1 within a predetermined period of time.
  • step b can also be carried out by a signal received by the control unit 5 from a higher-level control center 14.
  • the control unit 15 checks whether the required adjustment of the phase angle includes an angular degree that goes beyond the control range of the on-load tap changer 13, whether the predetermined period of time for the adjustment of the phase angle is smaller than a period of time within which the phase angle can be adjusted by means of the on-load tap changer 13, or whether the required adjustment of the phase angle Includes angle degrees that are smaller than a phase angle that can be adjusted by means of the on-load tap changer 13.
  • step c If the test in step c has shown that the required adjustment of the phase angle includes an angular degree that goes beyond the control range of the on-load tap changer 13, and/or that the specified time period for adjusting the phase angle is smaller than a time period within which the adjustment of the phase angle can be done by means of the on-load tap changer 13, and/or that the required adjustment of the phase angle includes an angle degree that is smaller than a phase angle that can be adjusted by means of the on-load tap changer 13, then in a step d1 the feed module 4 pressed. However, if none of the aforementioned conditions apply, the on-load tap changer 13 of the phase shifter transformer is actuated by means of the control unit 15.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

Dispositif (1) pour adapter un angle de phase d'une tension dans une ligne de transmission (2) d'un système d'alimentation électrique comprenant : - un transformateur déphaseur (3), qui comporte un changeur de prises en charge (13) et qui est disposé dans la ligne de transmission (2) et est conçu pour adapter un angle de phase d'une tension au moyen du changeur de prises en charge (13), - un module d'alimentation (4), qui est agencé en série avec le transformateur déphaseur (3) dans la ligne de transmission (2) et est conçu pour adapter un angle de phase d'une tension, - une unité de commande (5), - l'unité de commande (5) étant conçue pour déterminer une exigence d'adaptation de l'angle de phase entre une tension d'entrée et une tension de sortie du dispositif (1) dans une période de temps prédéfinie, - pour adapter l'angle de phase au moyen du module d'alimentation (4) si - l'adaptation demandée de l'angle de phase comprend un degré angulaire qui dépasse la plage de commande du changeur de prises en charge (13), et/ou - la période de temps prédéfinie pour l'adaptation de l'angle de phase est inférieure à une période de temps à l'intérieur de laquelle l'angle de phase peut être adapté au moyen du changeur de prises en charge (13), et/ou - l'adaptation demandée de l'angle de phase comprend un degré angulaire qui est inférieur à un angle de phase qui peut être adapté au moyen du changeur de prise en charge (13).
PCT/EP2023/060216 2022-05-11 2023-04-20 Dispositif et procédé d'adaptation d'un angle de phase d'une tension dans une ligne de transmission WO2023217505A1 (fr)

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DE102022111756.1 2022-05-11
DE102022111756.1A DE102022111756A1 (de) 2022-05-11 2022-05-11 Vorrichtung und verfahren zur anpassung eines phasenwinkels einer spannung in einer übertragungsleitung

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913916A2 (fr) * 1997-10-31 1999-05-06 Asea Brown Boveri AG Transformateur triphasé
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WO2006046907A1 (fr) * 2004-10-29 2006-05-04 Abb Research Ltd Controle de flux d'energie electrique
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EP0152002B1 (fr) 1984-02-10 1988-11-17 BBC Brown Boveri AG Déphaseur
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WO2002086647A2 (fr) * 2001-04-20 2002-10-31 Maschinenfabrik Reinhausen Gmbh Dispositif permettant d'influer automatiquement sur un reseau d'alimentation electrique et commande a moteur correspondante
WO2006022576A1 (fr) * 2004-08-27 2006-03-02 Abb Research Ltd Reglage de debit de puissance electrique
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