EP2853015A1 - Verfahren und vorrichtung zur zuordnung einzelner phasenleiter in einem mehrphasigen energieverteilnetz - Google Patents
Verfahren und vorrichtung zur zuordnung einzelner phasenleiter in einem mehrphasigen energieverteilnetzInfo
- Publication number
- EP2853015A1 EP2853015A1 EP12729897.4A EP12729897A EP2853015A1 EP 2853015 A1 EP2853015 A1 EP 2853015A1 EP 12729897 A EP12729897 A EP 12729897A EP 2853015 A1 EP2853015 A1 EP 2853015A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- phase
- time
- unit
- voltage
- location
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00012—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using an auxiliary transmission line
-
- 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
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
Definitions
- the invention relates to a method for assigning individual phase conductors at one point to those at at least one further point in a multi-phase energy distribution network, in particular in a three-phase network, in network operation, as well as a corresponding device.
- a point can be located anywhere in the energy distribution network, but at least the interest of the network connection points of consumers and the distribution stations, such as
- Energy distribution networks is often respected only on a uniform rotating field direction at the three-phase terminals of the households, for example, a cyclically successively rising or falling by 120 ° order of
- grid expansion plans or installation plans is often not sufficient because they may be incomplete or may not correspond to the actual energy distribution grid.
- Reference time and the time of zero crossing of the phase voltage is determined or in the case of
- Reference time and the time of zero crossing of the phase voltage is determined or in the case of
- a point according to the invention is a defined location in a multi-phase energy distribution network, where the phase voltages of at least one phase conductor are determined, ie measured. For example, to determine to which of the phase lines a particular consumer, such as a household, is connected, a location in or at a substation and another location may be provided to the consumer. If at any point a voltage measuring device is present, for example in a transformer station, in an electricity meter with
- Remote reading, distribution network monitoring or voltage quality measuring equipment it makes sense to use that voltage meter as the location.
- common reference time means that the determination, such as the measurement, of the phase voltage at the at least two locations simultaneously or synchronously
- the measurement takes place. If more than two digits are used for a measurement, then it must be ensured here too that the measurement takes place simultaneously at all points. Therefore, when the measurement is triggered by a signal, it is in determining the common reference time if necessary, take into account the duration of the signal to the individual points. If the propagation time of the signal to the phase duration of the alternating current of the energy distribution network is negligible, then no time correction of the signal must be made, and the reception time of the signal is used as a common reference time.
- phase conductor will differ slightly (usually up to 5%).
- Phase difference here thus means that those time and / or phase differences are assigned to each other, which have the least deviation or scattering to each other.
- phase information ie the phase difference (which is also referred to as phase shift) depends on the type of connection (phase voltage or chained voltage in a 4- and / or 3-conductor system).
- time difference and “Phase difference” the same physical state and are therefore equally usable within the scope of the invention.
- Phase conductors are clearly assigned to each other at the different locations - due to a single measurement process. It is therefore not necessary to carry out a plurality of successive measurements on the different phase conductors, as provided, for example, by DE 196 21 543 A1. However, the method can also be applied to only one or two phase conductors
- Phase voltages at one point determines at least the phase voltage of a phase conductor and at a further location at least the phase voltage of a phase conductor.
- Phase voltage is always measured between the phase conductor and neutral.
- the chained voltages are measured, at least one chained one at a location
- Voltage measured (between two phase conductors) and at a further point at least one concatenated voltage.
- An embodiment of the invention provides that the common reference time is chosen such that this with the time of the zero crossing of a phase voltage or a chained voltage at the first location
- the propagation time of the signal may also be used when determining the common
- Transmission sections can be at
- Phase voltages are evaluated synchronously. As a result, any frequency fluctuations in the network frequency during the transmission due to the multiple hops or the multiple repetitions can not affect the measurement accuracy.
- the signal contains information that determines the reference time for a time after the signal is received.
- the signal may include information that the measurement should be made at a certain time in the future, and that time is read on a local clock.
- the signal may also contain information about
- Measuring points based on the respective local clocks takes place at the same time. It would also be possible to determine the common reference time by several signals transmitted in succession.
- the signal is transmitted via one or more conductors (phase conductors, neutral conductors). It can therefore be used advantageously for the transmission of the signal the power distribution network.
- the signal can be generated in particular for this purpose at about one point and transmitted by the latter and then transmitted to the other point. This has the advantage that the signal generator can be integrated into the devices necessary for carrying out the method at one of the points. This also allows data from this point, such as phase angles of
- the signal can also be transmitted via another wired or wireless transmission medium, such as via radio.
- the signal generator is located at a different location than at one point.
- the signal can also, especially if it is sent from a point in the multiphase power distribution network
- the inventive device for carrying out the
- a phase measuring unit is provided at at least two points, with which the time of the zero crossing of the
- Phase measuring unit connected comparison unit is provided, which can be determined with the phase measuring unit, the time difference or the phase difference between the reference time and time zero crossing, and
- An alternative device provides that
- a signal generator for determining the common reference time at the time of
- a phase measuring unit is provided at the first location and at at least one further location with which the
- At least two phase conductors can be measured
- a comparison unit connected to the phase measuring unit is provided, wherein with the phase measuring unit the time difference or the phase difference between reference time and time of the zero crossing can be determined, and with the comparison unit that
- Phase conductor of the first position can be assigned to a phase conductor of the second position
- Reference time point may include a transmitting and receiving unit at each point and a signal generator, in particular at one point.
- a transmitting and receiving unit at each point and a signal generator, in particular at one point.
- a signal generator for the transmission of signals, in particular of data packets, at least one transmission and
- Phase measuring unit and optionally connected to the signal generator, the comparison unit and the allocation unit.
- the transmitting and receiving unit For the transmission of signals, in particular of data packets, over the energy distribution network can be provided that at each point the transmitting and receiving unit with the
- Phase conductors and the neutral conductor is connected.
- the transmitting and receiving unit for the transmission of signals by means of conductors that do not belong to the energy distribution network is formed by radio or by optical transmission.
- FIG. 1 shows a schematically represented invention
- FIG. 1 shows the time course of the phase voltages of
- Phase conductor of Figure 1, Figure 3 is a schematically illustrated invention
- FIG. 4 shows the time course of the phase voltages of
- Figure 1 shows a section of a three-phase network consisting of three phase conductors LI, L2, L3 and a
- Unit E provided, at the second location M2, a second unit Ex is provided. Between the first and second location, a third unit, a so-called reference unit Er, is provided at a third location M3.
- Phase conductor - first phase conductor LI, second phase conductor L2, third phase conductor L3 - are in the first position Ml in the illustration in Figure 1 in ascending order of each other, between the first Ml and third place M3, the phase conductors LI and L2
- first phase conductor Llr at the third position M3 corresponds to the second phase conductor L2 at the first position Ml
- the second phase conductor L2r at the third position M3 corresponds to the first phase conductor LI at the first position Ml.
- a point is drawn, at which possibly again a permutation of the phase conductors takes place, so that it is not known which phase conductor L1x, L2x, L3x at the second point M2 (about the connection location of a
- a signal generator 1 which generates a signal which is sent via a transmitting and receiving unit 5 to the other locations M2, M3.
- the signal generator 1 also has a connection to the allocation unit 3, which is not shown here in FIG.
- the Transmitter and receiver unit 5 a modem, namely a
- DLC modem distributed line carrier modern
- This DLC modem usually uses a frequency range of 3 to 95 kHz (it would also be possible up to 500 kHz) with a data transmission rate of less than 100 bit / s up to several 10 kbit / s.
- M2, M3, a second unit Ex or a third unit (reference unit) Er are arranged, which also each have a designed as a DLC modem transmitting and receiving unit 5.
- Transmitting and receiving units 5 are connected at each point Ml, M2, M3 respectively with the three phase conductors LI, L2, L3 and with the neutral conductor N.
- the first position Ml takes over the assignment of the phase conductors, here is the transmission and
- Receiving units 5 also with the allocation unit. 3
- the second and third place M2, M3 have in their units Ex, Er each have a phase measuring unit 4, which with the three phase conductors LI, L2, L3 and with the
- Neutral conductor N is connected at the respective point, with the phase measuring unit 4, the time of zero crossing of the phase voltages in the three phase conductors LI, L2, L3 can be measured.
- the second and third points M2, M3 additionally each have a comparison unit 2 connected to the phase measuring unit 4, with which reference numeral 2 for the
- Phase conductor the time difference or the phase difference between the reference time and time of the zero crossing of the phase voltage can be determined.
- Comparison unit 2 is in each case with the transmission
- Receiving unit 5 connected so that the determined time or phase difference can be transmitted to the allocation unit 3, with which by comparing the time or Phase differences, the phase conductors of different locations can be assigned to each other.
- FIG. 2 shows the time profile of the phase voltages at the points M 1, M 2, M 3 from FIG. 1 and the transmitted data packet TxD.
- the signal generator 1 of the first unit E transmits in
- Receiving unit 5 from a data packet TxD in the three-phase network, which is thus used as a communication medium between the units E, Er and Ex.
- the data packet is received as RxDx via the modem (transmitting and receiving unit 5), in the third unit Er via the modem (transmitting and receiving unit 5) as RxDr.
- Data packets are the data packet RxDx or RxDr to the
- Phase measuring units 4 of the units Er, Ex the measurement of the phase information of the phase voltages of the individual phase conductors is triggered due to the reception of the data packet, the zero crossings of the phase voltages ULlr, UL2r, UL3r or ULlx, UL2x, UL3x are detected and as
- the reception time corrected if necessary by the transit time of the data packet RxDx or RxDr, represents the reference time.
- AtLlr, AtL2r, AtL3r formed between the reception times of the data packets RxDx or RxDr on the one hand and the times of the zero crossings of the corresponding phase voltages ULlx, UL2x, UL3x or ULlr, UL2r, UL3r on the other. These time differences are shown in FIG. The time differences AtLlx, AtL2x, AtL3x, AtLlr, AtL2r, AtL3r, together with the associated terminal designations or terminal numbering of the phase conductors Llx, L2x, L3x, Llr, L2r, L3r from the comparison units 2 via the modems
- LI corresponds to L2r or L3x
- L2 corresponds to Llr or Llx
- L3 corresponds to L3r or L2x. If required, this information can also be transmitted to the units Ex and Er, in particular their comparison units 2, approximately also via the phase conductors by means of the modems (transmitting and receiving units 5). The information may also be communicated to other devices and systems.
- the information about the time differences and / or the current phases of the phase voltages of the individual phase conductors together with their unique numbers in the energy distribution network and possibly with other measured values via the same transmission system as that for the data packet TxD or RxDx and RxDr (ie by means of DLC modems via the energy distribution network) or via a
- Allocation units 3 are provided which require information about the phase conductor assignment at the points (connection points) of the energy distribution network.
- the signal generator 1 may be integrated in the allocation unit 3. As a result, the signal generator 1 can simply be given all the data that it transmits to the signal in the form of the
- the time differences or the current phases are subdivided into groups with the smallest possible scattering of the values.
- conductor terminals at different locations (locations) of the power distribution network are assigned to a common phase conductor. This corresponds to a relative allocation.
- it requires at least one reference terminal per group of
- Fig. 1 Time differences or phases whose name is known.
- Fig. 1 are the reference terminals in the
- FIG. 3 shows a further exemplary embodiment in which the device according to the invention without
- the device consists in
- Three-phase network again consists of three phase conductors LI, L2, L3 and a neutral conductor N.
- a first unit E is provided, at the second location M2, a second unit Ex is provided.
- Phase conductor L3 - are in the first position Ml in the illustration in Figure 3 in ascending order on top of each other, between the first Ml and second point M3 a point is located at the possible way a permutation of the phase conductors takes place, so it is not known which Phase conductor Llx, L2x, L3x at the second point M2 (about the point of connection of a consumer) which phase conductor corresponds to the first location Ml.
- a signal generator 1 is provided which generates a signal which is sent via a transmitting and receiving unit 5 to the other point M2.
- the signal generator 1 is controlled by the phase measuring unit 4 arranged in the unit E.
- the transmitting and receiving unit 5 is a DLC modem.
- a second unit Ex is arranged, which likewise has a transmitting and receiving unit 5 designed as a DLC modem.
- the transmitting and receiving units 5 are at each point Ml, M2 each with the three phase conductors LI, L2, L3 and with the
- Comparative unit 2 in the or in each of the units Ex in several such units.
- Assignment unit 3 is connected, which is also arranged in the first unit E.
- the first and second positions M1, M2 each have one in their units E, Ex
- Phase measuring unit 4 which is connected to the three phase conductors LI, L2, L3 and to the neutral conductor N at the respective location.
- the second point M2 additionally has a comparison unit 2 connected to the phase measuring unit 4, with which the phase conductors Llx, L2x, L3x have the Time difference or the phase difference between
- Phase voltage can be determined.
- the comparison unit 2 is connected to the transmitting and receiving unit 5, so that the determined time or phase difference and the resulting
- the three-phase network is used as a communication medium between the units E, Ex.
- the phase measuring unit 4 of the first unit E detects the zero crossings of the phase voltages ULI, UL2, UL3 and controls by this information the signal generator 1, which in
- the falling edge of the phase voltage ULI sends a data packet TxD into the three-phase network.
- the data packet TxD contains information that the data packet TxD has been transmitted in synchronism with the zero crossing of the falling edge of the phase voltage ULI and via the phase relationship or the phase order of the phase voltages ULI, UL2, UL3 at the first position Ml, ie those values measured with the first unit E.
- the data packet TxD could be the signal generator 1 and the
- Comparison units 2 are also made known via another transmission path or with another data packet.
- Figure 4 shows schematically the time course of
- the first unit E transmits at the zero crossing of the falling edge of the phase voltage ULI a data packet TxD to the second unit Ex.
- the data packet as RxDx via the modem (transmitting and receiving unit 5) is received ,
- the data packet RxDx is transferred to the comparison unit 2.
- the zero crossings of the phase voltages ULlx, UL2x, UL3x are detected and passed as phase information of the comparison unit 2 for comparison with the reception times of the data packets RxDx.
- corrected reception time represents the reference time.
- Time difference can be determined, because the phase conductor with the smallest time difference, which is zero in the ideal case, corresponds to the first phase conductor LI at the first point Ml, whose time difference is also zero, because
- phase conductor L2x according to FIG. 4 has a vanishingly small time difference AtL2x at the second location M2, so that the first phase conductor LI at the first location Ml corresponds to the second phase conductor L2x at the second location M2. Due to the phase information of the
- L2 corresponds to L3x
- L3 corresponds to Llx
- this information is transmitted to the allocation unit 3 of the first unit E via the DLC connection, that is to say the modems (transmitting and receiving units 5) and the phase conductors. Also in this embodiment, the information may be provided to other devices.
- the common reference time for example by specifying a specific reference time, such as that the measurement should be performed every hour, or by a corresponding local time setting in the
- an automatic detection of the phase conductor assignment is made possible in an electrical energy distribution network, without knowledge of its topology or by changing the topology by
- devices can be used which are already in one
- Distribution network exist and can be used, for example
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2012/059421 WO2013174415A1 (de) | 2012-05-22 | 2012-05-22 | Verfahren und vorrichtung zur zuordnung einzelner phasenleiter in einem mehrphasigen energieverteilnetz |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2853015A1 true EP2853015A1 (de) | 2015-04-01 |
Family
ID=46384319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12729897.4A Withdrawn EP2853015A1 (de) | 2012-05-22 | 2012-05-22 | Verfahren und vorrichtung zur zuordnung einzelner phasenleiter in einem mehrphasigen energieverteilnetz |
Country Status (3)
Country | Link |
---|---|
US (1) | US9482709B2 (de) |
EP (1) | EP2853015A1 (de) |
WO (1) | WO2013174415A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6388795B2 (ja) * | 2014-06-06 | 2018-09-12 | 東北電力株式会社 | 検出システム |
CN105186682A (zh) * | 2014-06-10 | 2015-12-23 | 莱芜科泰电力科技有限公司 | 新型智能配电箱 |
US10205318B2 (en) * | 2016-01-05 | 2019-02-12 | Energo Group Canada Inc. | Method and system for reducing losses during electrical power distribution |
CA3073551C (en) | 2016-09-16 | 2023-05-09 | Energo Group Canada Inc. | Losses reduction for electrical power distribution |
KR101920563B1 (ko) * | 2017-06-15 | 2018-11-21 | 한국전력공사 | 중계통신방식의 ami 통신망에서 위상 검출 및 동기화를 수행하는 ami 시스템 및 그 방법 |
FR3078168B1 (fr) * | 2018-02-16 | 2020-03-06 | Enedis | Determination de la phase d'un conducteur appartenant a un reseau polyphase |
FR3078167B1 (fr) * | 2018-02-16 | 2020-02-21 | Enedis | Determination de la phase d'un conducteur appartenant a un reseau polyphase |
US10775448B2 (en) | 2018-06-18 | 2020-09-15 | Schweitzer Engineering Laboratories, Inc. | Automatic phase identification for electric power delivery lines |
DE102021123908A1 (de) * | 2021-09-15 | 2023-03-16 | Werner Schnabel | Anordnung und Verfahren zur Phasenzuordnung |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3963964A (en) * | 1975-02-07 | 1976-06-15 | Westinghouse Electric Corporation | Segregated phase comparison system |
CA1212416A (fr) | 1983-11-15 | 1986-10-07 | Michel Bouvrette | Telephaseur pour l'identification des phases a distance de lignes de transport et/ou d'arteres dans un reseau electrique |
AU7477494A (en) * | 1993-08-23 | 1995-03-21 | Echelon Corporation | Measuring burst/sinusoidal waveform time span |
US5510700A (en) | 1993-10-14 | 1996-04-23 | Systems Analysis And Integration, Inc. | Apparatus and method for identifying the phase of a three phase power line at a remote location |
DE19621543A1 (de) | 1996-05-29 | 1997-12-04 | Aeg Hausgeraete Gmbh | Verfahren und Vorrichtung zur Phasenzuordnung bei einem mehrphasigen Energieversorgungsnetz |
DE29809604U1 (de) | 1998-05-28 | 1999-07-15 | Seba Mess Ortungstech | Vorrichtung zur Phasenidentifizierung der Phasenzuordnung von Mittelspannungskabeln |
US6642700B2 (en) | 2002-03-26 | 2003-11-04 | Avistar, Inc. | System, method, field unit, reference unit and computer program product for phase tracking of electrical conductors |
US20040251921A1 (en) * | 2003-06-10 | 2004-12-16 | Sagab Electronic Ab | Method and device system for testing electrical components |
PL1779126T3 (pl) * | 2004-08-16 | 2010-08-31 | Enel Distribuzione Spa | Sposób oraz system do wykrywania fazy przewodu nieznanego napięcia fazowego względem napięcia fazowego odniesienia |
US20100262395A1 (en) * | 2009-04-08 | 2010-10-14 | Manu Sharma | System and Method for Determining a Phase Conductor Supplying Power to a Device |
US8300369B2 (en) * | 2009-09-30 | 2012-10-30 | Chevron U.S.A. Inc. | System and method for polyphase ground-fault circuit-interrupters |
US20110285382A1 (en) * | 2010-05-18 | 2011-11-24 | General Electric Company | Power meter phase identification |
-
2012
- 2012-05-22 US US14/402,344 patent/US9482709B2/en not_active Expired - Fee Related
- 2012-05-22 EP EP12729897.4A patent/EP2853015A1/de not_active Withdrawn
- 2012-05-22 WO PCT/EP2012/059421 patent/WO2013174415A1/de active Application Filing
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2013174415A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2013174415A1 (de) | 2013-11-28 |
US20150091545A1 (en) | 2015-04-02 |
US9482709B2 (en) | 2016-11-01 |
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