EP2603922A1 - Procede et dispositif de controle d'une manoeuvre d'un organe mobile d'un sectionneur - Google Patents
Procede et dispositif de controle d'une manoeuvre d'un organe mobile d'un sectionneurInfo
- Publication number
- EP2603922A1 EP2603922A1 EP11754707.5A EP11754707A EP2603922A1 EP 2603922 A1 EP2603922 A1 EP 2603922A1 EP 11754707 A EP11754707 A EP 11754707A EP 2603922 A1 EP2603922 A1 EP 2603922A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- instantaneous
- angular position
- power
- measured
- motor
- 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
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
- H01H2003/266—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor having control circuits for motor operating switches, e.g. controlling the opening or closing speed of the contacts
Definitions
- the invention relates to the field of high and medium voltage disconnector control devices, and more particularly relates to a method and a device for controlling the opening and closing maneuver of these disconnectors.
- a disconnector is an electrical apparatus including one or more movable members which, placed in the open position, can electrically isolate a line section of an electrical network, for example for safe human intervention on this section of isolated line.
- the disconnector is coupled to a control device adapted to actuate the movable members according to the operating commands received. More specifically, the direction of movement of a movable member is determined by the configuration of a power supply circuit of a motor driven by a control unit. Examples of control devices are detailed in documents FR 2 931 995 and FR 2 904 469 of the Applicant.
- the power supply of the motor for a sufficient duration makes it possible to ensure the displacement of the movable members to cause either the opening or the closing of the disconnector.
- the disconnector since the disconnector has no breaking capacity, the electrical equipment downstream of the electrical network must be stopped before the opening operation of the disconnector to prevent opening of the disconnector, the appearance of an electric arc. due to opening in load which may cause damage. Similarly, for obvious safety reasons, it is absolutely imperative that the disconnector does not close unexpectedly.
- the present invention aims to provide a low-cost solution and easy to implement to increase the safety of people to intervene on an isolated line section. Presentation of the invention
- the invention proposes in particular a solution for monitoring and detecting a connection fault, such as a connection break, between the electrical control device and the disconnector.
- the solution of the invention consists in particular in monitoring the evolution of the operating torque of the movable member, or the force provided by the motor to maneuver the movable member, during the opening or closing operation of the disconnector .
- the invention thus relates to a method of controlling a maneuver of at least one movable member of a disconnector, the member being set in motion by a transmission mechanism driven by an electric motor powered by a circuit of power supply controlled by a control unit according to an order of maneuver.
- control method comprises at least:
- the monitoring of the evolution of the maneuvering torque is notably achieved by the acquisition, during the maneuver, of values such as the instantaneous angular position of one of the elements constituting the transmission system and the instantaneous power. corresponding provided to the engine, the measured instantaneous angular position being in particular representative of the instantaneous position of the movable member of the disconnector.
- the measurement of these values in particular makes it possible to know the evolution of the operating torque or of the torque supplied by the engine in real time, and to detect any connection faults existing between the control device and the disconnector.
- a table of values or a reference curve representative of the evolution of the operating torque or of the torque supplied by the motor, the table of values or the reference curve giving, for example, the power supplied. by the motor according to the angular position of the element of the transmission system in a faultless operation.
- the table of values or the reference curve giving, for example, the power supplied. by the motor according to the angular position of the element of the transmission system in a faultless operation.
- the existence of a fault between the control device and the movable member of the disconnector during the maneuver can result in the location of operating points. in an area below or above the reference curve, each of the operating points being defined by the instantaneous measured angular position and the corresponding measured instantaneous power.
- the operating point may be a defect related to sub-torque operation, or may result from a break in electrical or mechanical connection between the control device and the disconnector.
- the operating point may be a fault related to over-torque operation that may result from blocking the transmission.
- mechanical torque motor to the movable member of the disconnector.
- the zone situated above the reference curve and corresponding to an over-torque operation is such that for a given value of the angular position, the value of the corresponding instantaneous power is 50% greater than the value the corresponding reference power given by the reference curve.
- the area below the reference curve and corresponding to a sub-torque operation is such that for a given value of the angular position, the value of the corresponding instantaneous power is 15% lower than the value. the corresponding reference power given by the reference curve.
- the area below the reference curve that may correspond to a connection break between the control device and the disconnector is such that for a given value of the angular position, the value of the corresponding instantaneous power is less than 20% to the value of the corresponding power given by the reference curve.
- the measurement of the instantaneous power comprises the measurement of the motor current and the measurement of the motor voltage, or one of these two values, when the other is known, for example because it is constant.
- the method further comprises generating an over-torque operation indication signal when the measured instantaneous power is greater than the corresponding reference power for said measured instantaneous angular position.
- the control method may further include generating a sub-torque operation indication signal when the measured instantaneous power is less than the corresponding reference power for said measured instantaneous angular position.
- the measurement of the angular position may comprise the measurement of an instantaneous resistance value representative of the angular position of the element of the transmission mechanism with respect to a reference position corresponding to the opening or closing of the disconnector .
- the invention also relates to a device for controlling a maneuver of at least one movable member of a disconnector for opening or closing the disconnector, this member being set in motion by a transmission mechanism driven by a electric motor powered by a supply circuit controlled by a control unit according to a maneuver order.
- the control device comprises at least:
- a calculation unit able to compare, for each angular position, the measured instantaneous power with respect to a reference electric power which is a function of said measured instantaneous angular position, and to generate a fault indication signal when said measured instantaneous power differs of said reference power of at least one predetermined value in an equally predetermined tolerance range.
- the module for measuring the instantaneous power may comprise a unit for measuring the motor current and a unit for measuring the motor voltage.
- the module for measuring the instantaneous angular position comprises an angular position sensor intended to be coupled to a rotary shaft constituting one of the elements of the transmission system, and capable of generating an electrical signal representative of the instantaneous angular position of the rotating shaft.
- an angular position sensor intended to be coupled to a rotary shaft constituting one of the elements of the transmission system, and capable of generating an electrical signal representative of the instantaneous angular position of the rotating shaft.
- various types of sensors can be used, and in particular rotary potentiometers, but also Hall effect sensors, magneto-resistive sensors, or optoelectronic sensors.
- the invention also relates to a control device for operating at least one movable member of a disconnector for opening or closing said disconnector, said control device comprising at least one electric motor powered by a circuit power supply controlled by a control unit according to a maneuver order, said motor being adapted to put the body in motion via a transmission system.
- the controller may further include the control device described above.
- FIG. 1 is a schematic representation of the disconnector control device incorporating the maneuvering control device according to one embodiment of the invention
- FIG. 2 is a schematic representation of the reference curve as well as under-torque and over-torque zones according to one embodiment of the invention.
- FIG. 3 is a schematic representation of the reference curve and high and low tolerance curves according to another embodiment of the invention.
- a control device 1 is configured to operate a movable member of a disconnector 2, for opening or closing.
- the control device 1 comprises a transmission mechanism formed in particular of a rotary shaft 3 coupled to the movable member of the disconnector 2 and driven by an electric motor 5 via a reduction stage 4.
- a control unit 7 drives a control circuit. supply 6 of the engine 5 according to the received operating order so as to rotate the engine 5 in one direction or another.
- the shape of the evolution of the operating torque of the movable member remains substantially identical to each use, and this over several years. It is therefore possible to draw a reference curve or to establish a table of values representative of the evolution of the operating torque of the member in a flawless operation, and to compare the evolution of this maneuvering torque during of the maneuver, to detect the existence of a possible malfunction or electrical connection between the control device and the disconnector.
- the reference curve or the table of values can for example be determined at the beginning of the installation of the disconnector and control device system.
- This control device can be integrated in the control device 1 and comprises in particular:
- the reference power P re t (0) can be given by a table of values or a reference curve C ref ( Figure 2) representative of the variation of the power supplied by the motor in function of the angular position measured in a particular mode of operation, for example without defects.
- the module for measuring the angular position may be a rotary potentiometer 8 coupled to the shaft 3 so as to generate an instantaneous resistance R instant representative of the instantaneous angular position ⁇ of the shaft relative to a reference position.
- the measuring module can be integrated in the control unit 7, which thus ensures both the motor control and the torque monitoring.
- the invention also covers variants in which both functions are performed by separate subsets.
- the control unit 7 receives the instantaneous resistance value R generated by the rotary potentiometer 8 via the electrical connections 9, and determines, from this resistance value R, the angular position ⁇ instantaneous tree 3.
- the calculation unit can also be integrated in the control unit 7.
- the control unit 7 receives the value of the measured motor current I via an electrical connection 10, as well as the value of the voltage U of the motor measured via another electrical connection 11.
- the control unit 7 determines, from these measured current I and voltage U values, the instantaneous power P supplied to the motor 5 by the circuit d supply 6 to position the movable member in the instantaneous angular position.
- control unit 7 determines the instantaneous power P supplied to the motor 5 (and therefore the effort provided to operate the disconnector 2) as well as the angular position ⁇ instant representative of the position of the movable member during the maneuver, and compares this operating point thus determined to the reference curve C ref , this reference curve C ref being able to stored in the control unit 7.
- control unit 7 carries out the control method which notably comprises:
- the measurement of the angular position ⁇ instantaneous of the shaft 3 with respect to the reference angular position for example by measuring the instantaneous resistance R instant representative of the angular position ⁇ of the shaft 3 relative to the position of reference;
- the measurement of the corresponding instantaneous power P supplied to the motor for example by measuring the current I and the voltage U of the motor 5;
- first zone ZI FOG. of the reference curve C ref
- This first zone ZI can be such that for a given value of the angular position ⁇ , the value of the corresponding instantaneous power P is 50% greater than the value of the corresponding reference power given by the reference curve C ref for the same value of the angular position ⁇ .
- the operating point when the operating point is located in a second zone Z2 (FIG. 2) located below the reference curve C ref , it may be a defect related to sub-torque operation. , and because of this, it is possible to provide an adjustment of the engine power.
- the second zone Z2 is such that for a given value of the angular position ⁇ , the value of the corresponding instantaneous power P is 15% lower than the value of the corresponding power P given by the reference curve C ref for the same value of the angular position ⁇ .
- the operating point when the operating point is located in a third zone Z3 (FIG. 2) located below the reference curve C ref , it can be a defect linked to a connection break, this third zone Z3 being such that for a given value of the angular position ⁇ , the value of the instantaneous power P instant is negligible compared to the power required to operate the disconnector, for example less than 20% to the value of the corresponding power given by the reference curve for the same value of the angular position.
- the zone of over-torque ZI is defined in particular by the area situated above the high curve C h
- the sub-torque zone Z2 is defined by the area below the low curve C b .
- the area between the two high curves C h and low C b defines an acceptable operating area. Thus, any operating point outside this acceptable operating area preferably causes the generation of a fault indication signal.
- the high and low curves form an envelope of the reference curve.
- the low curve C b can be obtained by transforming the reference curve C ref , keeping the low curve at a distance and under the reference curve.
- this low curve C b can be obtained by drawing the lower envelope given by circles of a first radius and centered on the points of the reference curve.
- the high curve C b can be obtained by transforming the reference curve C ref , keeping the high curve at a distance and above the reference curve.
- this high curve C h can be obtained by plotting the upper envelope given by circles of a second radius and centered on the points of the reference curve. The second radius is preferably greater than the first radius.
- the high curves C h and low C b may also be obtained by applying, at the points of the reference curve C ref , a gain so that the high and low curves are offset in the power axis. relative to the reference curve, and a positive or negative offset depending on the direction of variation of the curve C ref , so that the high and low curves are offset in the axis of the angular positions with respect to the curve reference.
- the reference curve C ref exhibits stable zones corresponding to a stable evolution of the torque and transient zones for which the torque increases or falls sharply, it is possible to apply corrections to these transient zones so as to clearly dissociate the high and low curves of the reference curve at these transient zones.
- the control of the operating torque of the disconnector in real time makes it possible to detect operation in sub-torque or over-torque, but also a break in connection between the control device and the disconnector.
- the invention also has the advantage that the angular information redundant information of the sensors (contacts) limit switches commonly used in disconnecting systems, and therefore to improve safety.
- the measured curve ⁇ ( ⁇ ) and its interpretation by the calculation unit also makes it possible in many cases to provide information on the nature of a possible defect or to anticipate a defect and to plan preventative maintenance interventions. .
Landscapes
- Control Of Electric Motors In General (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1056554A FR2963858B1 (fr) | 2010-08-11 | 2010-08-11 | Dispositif et procede de controle d'une manoeuvre d'un organe mobile d'un sectionneur |
PCT/FR2011/051745 WO2012020187A1 (fr) | 2010-08-11 | 2011-07-20 | Procede et dispositif de controle d'une manoeuvre d'un organe mobile d'un sectionneur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2603922A1 true EP2603922A1 (fr) | 2013-06-19 |
EP2603922B1 EP2603922B1 (fr) | 2015-05-06 |
Family
ID=43661868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110754707 Not-in-force EP2603922B1 (fr) | 2010-08-11 | 2011-07-20 | Procede et dispositif de controle d'une manoeuvre d'un organe mobile d'un sectionneur |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2603922B1 (fr) |
CN (1) | CN103081048B (fr) |
ES (1) | ES2536963T3 (fr) |
FR (1) | FR2963858B1 (fr) |
WO (1) | WO2012020187A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105319500B (zh) * | 2015-09-24 | 2018-12-28 | 国家电网公司 | 一种基于拉线式传感器的隔离开关在线监测系统及其方法 |
EP3745433B1 (fr) * | 2019-05-29 | 2023-07-05 | ABB Schweiz AG | Solutions de diagnostic améliorées pour appareils de commutation moyenne tension |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19617260C1 (de) * | 1996-04-19 | 1997-06-19 | Mueller Jean Ohg Elektrotech | Schaltwerk für einen elektrischen Lastschalter |
FR2904469B1 (fr) * | 2006-07-28 | 2008-10-17 | Dauphinoise Const Elect Mec | Dispositif de commande electronique d'un sectionneur |
CN100555490C (zh) * | 2006-09-06 | 2009-10-28 | 士林电机厂股份有限公司 | 使用于交流电路的电力开关的投入/切离方法及装置 |
JP5081514B2 (ja) * | 2007-07-04 | 2012-11-28 | 株式会社日立製作所 | 省エネルギー運転支援方法における省消費電力効果の算出方法、省エネルギー運転支援システム、および省消費電力効果の算出プログラム |
FR2931995B1 (fr) | 2008-06-03 | 2010-05-28 | Dauphinoise Const Elect Mec | Dispositif de commande d'un moteur de sectionneur electrique |
EP2197011B1 (fr) * | 2008-12-12 | 2013-08-07 | ABB Research Ltd. | Système de commande pour actionner un dispositif électrique |
-
2010
- 2010-08-11 FR FR1056554A patent/FR2963858B1/fr not_active Expired - Fee Related
-
2011
- 2011-07-20 EP EP20110754707 patent/EP2603922B1/fr not_active Not-in-force
- 2011-07-20 ES ES11754707.5T patent/ES2536963T3/es active Active
- 2011-07-20 WO PCT/FR2011/051745 patent/WO2012020187A1/fr active Application Filing
- 2011-07-20 CN CN201180039759.5A patent/CN103081048B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2012020187A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012020187A1 (fr) | 2012-02-16 |
FR2963858A1 (fr) | 2012-02-17 |
EP2603922B1 (fr) | 2015-05-06 |
FR2963858B1 (fr) | 2012-08-17 |
CN103081048A (zh) | 2013-05-01 |
CN103081048B (zh) | 2015-06-10 |
ES2536963T3 (es) | 2015-06-01 |
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