EP2513935A1 - Procede de commande d'un appareil d'interruption de courant dans un reseau electrique haute tension - Google Patents
Procede de commande d'un appareil d'interruption de courant dans un reseau electrique haute tensionInfo
- Publication number
- EP2513935A1 EP2513935A1 EP10790957A EP10790957A EP2513935A1 EP 2513935 A1 EP2513935 A1 EP 2513935A1 EP 10790957 A EP10790957 A EP 10790957A EP 10790957 A EP10790957 A EP 10790957A EP 2513935 A1 EP2513935 A1 EP 2513935A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- phase
- window
- dates
- strategy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle
- H01H33/593—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle for ensuring operation of the switch at a predetermined point of the AC cycle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle
- H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing
Definitions
- the invention relates to a method of controlling a current interruption apparatus in a high voltage electrical network.
- circuit-breaker current interrupt apparatus an apparatus having the ability to cut a short circuit current.
- the invention relates to a method for reducing overvoltages related to the operation of a device for interrupting current in a high voltage electrical network, a method making it possible to optimally determine the switching moments of this apparatus.
- control devices are both designed to monitor the state of operation of current interruption devices and to send advance warnings, which is the best way to avoid network failures. and to extend the life of these devices.
- Known-art control devices incorporate new functionalities, which make them “smart” by diagnosing not only the state of the device's own parameters. current interruption but also the network parameters. They can give local orders to open or close the electrical devices they monitor.
- the field of application of the present invention is therefore that of the synchronous closure of high-voltage circuit breakers (POWs), by allowing the precise and reliable prediction of the optimal moments of maneuvering to limit oscillation phenomena. on the high voltage network, which can cause significant overvoltages and damage to the electrical equipment, taking into account the problem of maneuvering of compensated or non-compensated lines.
- POWs high-voltage circuit breakers
- the insertion resistors as described in the document referenced [2]. But these entail a significant additional cost.
- the subject of the invention is a method using a new control law making it possible to better predict the ideal moment of closure of an electrical apparatus for interrupting current in a high voltage network.
- the invention relates to a method for controlling a current interruption apparatus in a high voltage electrical network typically comprising a generator, a power transformer, a three-phase current transformer, a source-side single-phase voltage transformer, a power transformer, a three-phase line-side voltage, a circuit-breaker and its control cabinet, a transmission line, characterized in that it comprises for each phase:
- a step of choosing a strategy for simple closing or closing of the cut-off device according to the conditions of choice a step of calculating a set of optimal closing dates for each phase according to the chosen strategy
- the set of analog signals is sampled at a rate of 1ms, and this although the accuracy expected in the determination by calculation of the optimal instants of maneuvering is well below the ms, typically 100ys.
- the phase / solid phase fault discrimination is carried out by constantly acquiring the currents and calculating, over a period of the industrial frequency, the mean square value, or RMS, for each phase, which is stored. in memory, and during an opening command the computation of the current RMS value is finished and it is compared with the average of n (for example 100) values stored in memory, if this current value exceeds a value parameterized this average value as well as the set nominal value Nominal current I divided by 10 then the phase is considered in default.
- n for example 100
- the voltage analysis is done by attempting to match a twelve-parameter model on a signal window, typically 100 ms, this model, called Prony, being a sum of three amorphous sinusoids of amplitude A ', A ", A '", phases ⁇ ', ⁇ "and ⁇ '” and frequencies f', f ", f '", and damping factors ⁇ ', a ", CC '' ':
- prony ⁇ t) A '£ a' cos ⁇ 2ji 'l + ⁇ c') + A '' e a "cos ⁇ 2ji '' l + ⁇ C '') + A '''£ a"' c the amplitudes A ', A'',A''' being ranked in descending order, so as to favor the mode of higher amplitude, which is generally distinguished from others.
- a comparison test of the duration between the opening order and the closing order at a time t2 to differentiate the cases of simple closure and cases of quick reclosing.
- a line-side and source-side voltage analysis is carried out on the 100 ms of signal preceding the command, and the choice of a strategy is made. , and after having calculated a set of optimal dates according to this strategy, one switches to a phase resynchronization waiting stage.
- a line-side voltage analysis is performed on the 100 ms of previous signal, and the choice of a strategy is made and after calculating a set of optimal dates according to this strategy is switched to a phase resynchronization waiting step.
- this resynchronization step facilitates the use of a single-processor machine for managing the three phases in real time that must take place simultaneously, which allows the use of simple and economical electronics.
- Psource being the power of the source voltage signal, calculated on the same time window as that or the line-side analysis is carried out, that is to say on N points of window one has samples Usource [0] to Usource [Nl], with:
- ⁇ being a parameterized value between 0 and 1.
- the time t0 for isolating the line is determined by traversing the line voltage signal, in the forward direction, since a date when it is certain that the voltage seen from the measurement reducer is sinusoidal, by making a breakaway search.
- This threshold can be set at 60% of the estimated amplitude of the model for the first signal window.
- a stop is placed in the search for this moment t0 materialized by having the following two conditions fulfilled:
- the voltage across the circuit breaker being the source voltage, shifted by a constant value
- the sign of this constant value is determined by observing the algebraic value of the line voltage at time t0, if this sign is positive, we close on a source voltage maximum, and conversely if this sign is negative, we make this closure on a minimum source voltage.
- t op t (k) textrema + k / fOm + offset.
- the calculated value of the offset, positive can be limited by one-eighth of the period of the parameterized industrial frequency [0..1 / (8 * f0)].
- the periodic envelope of the voltage across the circuit-breaker, which has beats, the periodic envelope of period 1 / (f0-f ') of which is to be reconstructed, is closed by closing on a minimum local (“hollow") of this envelope, choosing and dating (t be at) the trough closest to the center of the analysis window and proposing optimal closing dates:
- prony (t) A e a ' ' .cos (2jû ./'.t + (p ') +
- the model being sampled at the same sampling frequency as the data from the acquisition
- the line voltage is low-pass filtered, then a zero crossing is sought, by linear interpolation between two samples, corresponding to a positive dV / dt in the voltage table provided, the closest to the middle of the window, we then apply an angular offset corresponding to the parameterized value for the phase considered, taking into account the line frequency supplied f ', we then propose dates that fall in the window [t3, t4 ], in shifts of a multiple of the period of the line voltage with:
- topt (k) tdecaled + k / f
- the optimality combining two criteria: dispersion of the weakest dates and dates most possible near the beginning of the parameterized closing window.
- dispersion of the weakest dates and dates most possible near the beginning of the parameterized closing window.
- the method of the invention therefore proposes:
- the method of the invention has, in addition, the following advantages:
- CVT continuous capacitive dividers
- FIGS. 1 and 2 illustrate a device for controlling a current interruption apparatus in a high-voltage network, implementing the method of the invention
- FIG. 3 illustrates a state machine illustrating the steps of the method of the invention, for a phase of the network
- FIG. 4 illustrates the selection of a source min / max strategy
- FIGS. 5 and 6 illustrate operating chronograms of the control device embodying the method of the invention
- Figures 7 and 8 respectively illustrate closures in angular offset and vacuum transformer, with isolated neutral.
- FIG. 1 illustrates a device for controlling a switching device in a high voltage network in which the method of the invention can be implemented.
- Figure 2 illustrates the diagram of the internal functions of this device.
- - TOR all or nothing, binary information, boolean.
- the main user parameters of the control device are:
- tl start_window_remember - time_mechanical_close - time_calculate
- the delays t1 and t2 are counted from the instant of reception of the opening order (order_0), as illustrated in FIG.
- FIG. 1 shows an electrical circuit comprising successively between the ground and a point P of connection to the high-voltage electrical network:
- the control device 17 receives different signals from this electrical circuit:
- This control device as illustrated in FIG. 2, comprises:
- a digital acquisition module 20 receiving the digital inputs
- an analog acquisition module 21 receiving the analog inputs
- a digital output module 22 delivering the digital outputs: individual closing commands for each of the phases A, B, C,
- a real-time algorithm module 23 located between the input and output modules 20, 21 and 22.
- phase A only one source voltage is acquired (phase A): the two others (phases B and C) are reconstituted by calculation: filtering, phase shift of k * 120 ° taking into account the identification of the acquired tension.
- the phase shift is done by linear interpolation on the date (delay / advance) corresponding to the phase shift (measured industrial frequency, "fOm").
- a more powerful interpolation polynomial or in cardinal sine, with the defect of a cost in heavier calculation
- FIG. 3 To close the circuit breaker (to let the current flow), the general control algorithm, illustrating the steps of the method of the invention, is shown in FIG. 3 in the form of a state machine (state machine). -transition) corresponding to a phase.
- state machine state machine
- the numbers "1" indicate an unconditional transition at the output of a state: as soon as the state has finished processing, the transition takes place.
- x A, B or C.
- timeout t2 which makes it possible to differentiate the cases of simple closure from the cases of fast reclosing (duration elapsed between opening order and closing order),
- t1 which is a parameter which gives the user the possibility of not closing the breaker too early even if the closing order arrives early.
- the measuring reducers for the voltage (TT) generally not providing the DC voltage information: Indeed a voltage signal zero line side after opening (it does not there is more current flowing) can correspond to a trapped charge, therefore to a DC voltage on the line which, in the worst case, is equal to the rated earth phase peak voltage. Then there would remain an ambiguity. So we rely on the history of events to make a correct strategy choice.
- the method of the invention makes it possible to distinguish between two scenarios, that of simple closure 25 and that of rapid reclosing cycle 26: 1) Simple closing cycle (25)
- phase A At the end of this time, one automatically switches to a state of waiting 37 ("possible waiting for other phases") where it is necessary to resynchronize with the other phases to be closed.
- the exit condition of this state is given below for phase A:
- a closing order (order_F) arrives while the delay t2 is not reached, it switches to the fast reclosing cycle. The instant of arrival of the closing order is then dated (45) and it is put on hold. If the current relative date is greater than time t1 (user parameter), a line-side voltage analysis (46) is started.
- FIG. 6 A timing diagram of the operation of the device implementing the method of the invention, in the case of simple closure, is illustrated in FIG. 6. This figure shows the closing window between the instants t3 and t4. We will analyze below the various modules illustrated in Figure 3, as well as different features of the method of the invention.
- the observation of the currents through the circuit-breaker takes place permanently ("rest” state), so as to have a sufficiently long history before the opening order, which is the first known event of the control device.
- the controller continuously acquires the currents and calculates, over a period of the industrial frequency, the RMS value for each phase, which is stored in memory. We keep the last of these values, for example the last 100 values, in a "historical" circular buffer.
- the Boolean flag is updated in the same way.
- the voltage analysis is done by attempting to match a twelve-parameter model on a signal window, typically 100 ms.
- the sampling step is typically 1ms.
- This model is a sum of three damped sinusoids (called "mode") of amplitudes A ', A “and A'", of phases ⁇ ', ⁇ "and ⁇ '" of frequency f ', f "and f '” and damping factors ⁇ ', a "and a '”.
- pronyit A'.e a'J . cos (2 .f'j + I ') + A''£ a "J. cos (2 .f I" j + ") + A'" £ a '"J. cos (2 I ./" 7 + ⁇ "')
- the amplitudes A ', A' ', A' '' are ranked in descending order, so as to favor the mode of higher amplitude, which is generally distinguished from others.
- the "out-of-range" condition indicates that the frequency in question does not belong to the interval [fl f2] nor to f0m ⁇ l%, f1 and f2 being parameter frequencies of the application and f0m the measured industrial frequency.
- the line side does not produce oscillation and a trapped charge is suspected because the phase in question is healthy.
- the circuit breaker at the other end of the line has already closed, the line is at the industrial frequency and the terminal voltage is possibly sinusoidal due to the possible phase shift between source and line voltages.
- the optimal dates are the valleys of the envelope of the terminal voltage.
- - Psource is the power of the source voltage signal, calculated on the same time window as the one where the line-side analysis is performed, ie on N window points.
- test 53 to know if this instant was found, a test 54 to know if there is slow decay, which makes it possible to choose:
- phase calculated according to the zero crossings in the window considered.
- three future points are extrapolated using the estimated model and the average of the three deviations with the actual signal is calculated. If this average exceeds a determined threshold, the detection of the tO reached is considered.
- This threshold is, for example, positioned at 60% of the estimated amplitude of the model for the first signal window (first iteration). The time t0 is then estimated at a sampling step before the detection.
- the voltage across the circuit breaker is therefore the source voltage, sinusoidal at the industrial frequency f0, shifted by a constant value (at the time scale of the rapid reclosing cycle).
- the sign of this constant value must be determined by determining the algebraic value of the line voltage at time t0. If this sign is positive, the closing is done on a source voltage maximum, and conversely if this sign is negative, it is closed on a minimum of source voltage. So the target date is the date of this maximum or minimum increased (shifting "right" to higher dates) by the value:
- - A is the nominal voltage value parameterized, phase-earth
- This calculated, positive value is limited to one eighth of the parameterized power frequency period, [0..1 / (8 * f0)].
- the algorithm locates and dates the extrema concerned (minimum or maximum) and proposes a table of closure dates that fall into the reclosing window [t3, t4] (k integer positive):
- Sig_demod_cos filter_zd [signal (t) * cos (2 * pi * Fc * t)]
- Sig_demod_sin filter_zd [signal (t) * sin (2 * pi * Fc * t)]
- Phi (t) 2 * atan2 (sig_demod_cos (t), sig_demod_sin (t)),
- Envelope (t) 2 * [sig_demod_cos (t). * sin (phi (t) / 2) + sig_demod_sin (t). * cos (phi (t) 12)]
- Prony's analysis of the source voltage on a contemporary window of the 100 ms window which is used for the previous line-side voltage analysis. selection of the dominant mode on the source side and the three modes on the line side, to form a voltage model at the terminals of the circuit breaker, in four modes,
- prony (t) A e a ' ' .cos (2jû ./'.t + (p ') +
- the model being sampled at the same sampling frequency as the data from the acquisition
- the line voltage is filtered low-pass (reuse of the filter of the source voltage reconstitution function).
- An angular offset is then applied corresponding to the parameterized value for the phase considered, taking into account the line frequency supplied f (obtaining a later date tdécalé).
- topt (k) tdecaled + k / f
- each strategy takes place as quickly as possible, taking into account the on-board computing power, and results in a set (table) of optimal closure dates in the targeted closure window (parameters).
- the subsequent step 38 in the algorithm which is common to the three phases A, B and C (thus to three state machines) aims to choose, for each phase to close, an optimal date.
- Optimality combines two criteria: the weakest date dispersion (so as to minimize the change in the maneuvering conditions caused by the first phase that closes on the following ones) and the closest possible dates to the beginning of the closing window (the prediction becomes less and less precise as one moves away from the analysis window).
- the dispersion criterion does not apply and the first accessible date is chosen (taking into account the mechanical time of the circuit breaker).
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0958987A FR2953983B1 (fr) | 2009-12-15 | 2009-12-15 | Procede de commande d'un appareil d'interruption de courant dans un reseau electrique haute tension |
| PCT/EP2010/069568 WO2011073163A1 (fr) | 2009-12-15 | 2010-12-14 | Procede de commande d'un appareil d'interruption de courant dans un reseau electrique haute tension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2513935A1 true EP2513935A1 (fr) | 2012-10-24 |
| EP2513935B1 EP2513935B1 (fr) | 2015-03-11 |
Family
ID=42348467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10790957.4A Revoked EP2513935B1 (fr) | 2009-12-15 | 2010-12-14 | Procede de commande d'un appareil d'interruption de courant dans un reseau electrique haute tension |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9390872B2 (fr) |
| EP (1) | EP2513935B1 (fr) |
| CN (1) | CN102792407B (fr) |
| FR (1) | FR2953983B1 (fr) |
| WO (1) | WO2011073163A1 (fr) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9270784B2 (en) | 2011-02-16 | 2016-02-23 | Masque Publishing, Inc. | Peer-to-peer communications |
| US8838722B2 (en) * | 2011-02-16 | 2014-09-16 | Masque Publishing, Inc. | Communications adaptable to mobile devices |
| FR2987449B1 (fr) * | 2012-02-29 | 2014-02-14 | Sagemcom Energy & Telecom Sas | Compteur d'energie electrique |
| CN104641438B (zh) * | 2012-05-30 | 2017-06-30 | Abb研究有限公司 | 用于切换接触器的方法和装置 |
| FR3010272B1 (fr) | 2013-09-04 | 2017-01-13 | Commissariat Energie Atomique | Dispositif acoustique digital a puissance sonore augmentee |
| DE102015110275B4 (de) * | 2015-06-25 | 2025-11-20 | Apple Inc. | Vorrichtungen und Verfahren zum Verschieben eines digitalen Signals um eine Verschiebungszeit zum Bereitstellen eines verschobenen Signals |
| US9589394B2 (en) * | 2015-07-16 | 2017-03-07 | GM Global Technology Operations LLC | Determining the source of a ground offset in a controller area network |
| FR3044186B1 (fr) | 2015-11-23 | 2017-12-22 | General Electric Technology Gmbh | Procede et dispositif de mise sous tension d'un transformateur de puissance |
| FR3045228B1 (fr) * | 2015-12-14 | 2018-01-05 | Supergrid Institute | Procede de controle d'un appareil de coupure electrique et installation electrique comprenant un appareil de coupure electrique |
| CN106126118A (zh) * | 2016-06-20 | 2016-11-16 | 青岛海信移动通信技术股份有限公司 | 存储装置寿命的检测方法及电子设备 |
| CN109405790B (zh) * | 2018-12-14 | 2021-04-02 | 北京无线电测量研究所 | 一种用于伺服传动系统的角度测量方法和系统 |
| CN111044272B (zh) * | 2019-11-14 | 2022-03-15 | 国网浙江省电力有限公司嘉兴供电公司 | 一种基于大数据技术的高压断路器机械特性试验方法及装置 |
| US11476655B2 (en) * | 2020-01-14 | 2022-10-18 | Schweitzer Engineering Laboratories, Inc. | Trapped charge estimation |
| CN111650542A (zh) * | 2020-07-07 | 2020-09-11 | 国电大渡河瀑布沟发电有限公司 | 发电机组机端电压互感器熔断器防慢熔检测装置及方法 |
| JP7563584B2 (ja) | 2021-04-30 | 2024-10-08 | 日本電信電話株式会社 | 短絡保護システム、短絡保護装置、短絡保護方法およびプログラム |
| FR3124600B1 (fr) * | 2021-06-29 | 2023-07-14 | Sagemcom Energy & Telecom Sas | Estimation, malgré une fraude, de la puissance consommée sur une phase |
| CN118914837B (zh) * | 2024-10-12 | 2025-01-24 | 山东达驰高压开关有限公司 | 一种户外高压断路器用绝缘故障监测系统 |
| CN119395539B (zh) * | 2024-12-31 | 2025-06-17 | 天美电气有限公司 | 柱上断路器的多功能检测设备及方法 |
| CN120221301A (zh) * | 2025-04-08 | 2025-06-27 | 烟台东方威思顿电气有限公司 | 一种电能表外置断路器自动分合闸控制方法 |
| CN120415098B (zh) * | 2025-07-04 | 2025-09-02 | 南京佑赛科技有限公司 | 级联h桥变频器故障预警方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3704392A (en) * | 1972-02-01 | 1972-11-28 | Gen Electric | Network reclosing relay |
| KR100343122B1 (ko) * | 2000-07-18 | 2002-07-05 | 김철환 | 송전 선로에서 가변 무전압시간 제어를 이용한 적응적재폐로 방법 |
| DE10162118A1 (de) | 2001-12-12 | 2003-07-17 | Siemens Ag | Verfahren zur Ermittlung eines zukünftigen Spannungs- und/oder Stromverlaufs |
| US6965238B2 (en) | 2003-03-31 | 2005-11-15 | General Electric Company | Methods and apparatus for analyzing high voltage circuit breakers |
| SE0402590D0 (sv) * | 2004-10-22 | 2004-10-22 | Abb Technology Ltd | An apparatus and a method for predicting a fault current |
| JP5159075B2 (ja) | 2006-09-25 | 2013-03-06 | 株式会社東芝 | 遮断器の開閉制御装置 |
| EP1928007A1 (fr) * | 2006-12-01 | 2008-06-04 | ABB Technology Ltd | Procédé et appareil de prédiction de comportements futurs de chemins de courants |
| JP2009059662A (ja) * | 2007-09-03 | 2009-03-19 | Mitsubishi Electric Corp | 電力開閉装置およびその制御方法 |
-
2009
- 2009-12-15 FR FR0958987A patent/FR2953983B1/fr active Active
-
2010
- 2010-12-14 EP EP10790957.4A patent/EP2513935B1/fr not_active Revoked
- 2010-12-14 US US13/516,214 patent/US9390872B2/en active Active
- 2010-12-14 CN CN201080057569.1A patent/CN102792407B/zh active Active
- 2010-12-14 WO PCT/EP2010/069568 patent/WO2011073163A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011073163A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120306290A1 (en) | 2012-12-06 |
| CN102792407A (zh) | 2012-11-21 |
| FR2953983A1 (fr) | 2011-06-17 |
| CN102792407B (zh) | 2016-03-16 |
| WO2011073163A1 (fr) | 2011-06-23 |
| EP2513935B1 (fr) | 2015-03-11 |
| US9390872B2 (en) | 2016-07-12 |
| FR2953983B1 (fr) | 2012-01-13 |
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