WO2013033759A1 - Système et procédé de commande - Google Patents

Système et procédé de commande Download PDF

Info

Publication number
WO2013033759A1
WO2013033759A1 PCT/AU2012/001043 AU2012001043W WO2013033759A1 WO 2013033759 A1 WO2013033759 A1 WO 2013033759A1 AU 2012001043 W AU2012001043 W AU 2012001043W WO 2013033759 A1 WO2013033759 A1 WO 2013033759A1
Authority
WO
WIPO (PCT)
Prior art keywords
load
control system
protection
settings
switching device
Prior art date
Application number
PCT/AU2012/001043
Other languages
English (en)
Inventor
Geoffrey Robert SWEENEY
Original Assignee
Nepean Power Pty Ltd
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
Priority claimed from AU2011903594A external-priority patent/AU2011903594A0/en
Application filed by Nepean Power Pty Ltd filed Critical Nepean Power Pty Ltd
Priority to AU2012307073A priority Critical patent/AU2012307073B2/en
Publication of WO2013033759A1 publication Critical patent/WO2013033759A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/03—Application domotique, e.g. for house automation, bus connected switches, sensors, loads or intelligent wiring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/006—Calibration or setting of parameters
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/14—Protecting elements, switches, relays or circuit breakers

Definitions

  • the present invention relates to a control system and method, to operate a switching device, and in particular, to a control system and method to selectively connect a power supply to a load.
  • Whist this invention is primarily for use in hazardous and dangerous underground mining environments, it is not limited to that particular field of use.
  • the present invention is suitable for most electrically powered loads such as motors, cables, machines, transformers and the like in both underground, above ground mining, and other
  • switchgear It is commonly known that high power electrical equipment such as motors and transformers are typically connected to a power source via switchgear.
  • This switchgear is in general set up for a particular piece of equipment so that once certain predetermined load characteristics vary sufficiently the power will be disconnected to prevent any potentially hazardous conditions which may result in the loss of equipment or life. Any set up or adjustment of the switchgear is typically manually performed which, due to operator fatigue or inadvertence, may result in incorrect adjustment.
  • the switchgear In underground mining applications, the switchgear is typically located within a protective housing, to ensure that any sparks generated during switching are not available to ignite flammable gases such as methane which may be present.
  • Such housings include walls formed from thick steel plate and are accessible through an opening which is closed by a door.
  • Such doors are generally attached about their periphery to an adjacent wall by a plurality of spaced apart bolts. Accordingly, to set up or adjust the switchgear for a particular piece of equipment necessitates the opening of the steel door by removing all the bolts, the setting of the switchgear, and the subsequent replacement of the door. Following this procedure testing should be conducted to ensure safe operation. If the switqhgear is not correctly set this must be repeated. Accordingly, and reconfiguration is both time consuming and labour intensive.
  • Australian Patent No. 704930 describes a 'load control module' for controlling switch gear.
  • the 'load control module' of Australian Patent No. 704930 operates by having a sensor unit associated with the load.
  • the sensor unit provides a signal which transmits load protection data from the load to a controller.
  • the controller then provides a signal, dependent upon the signal from the sensor unit, to isolate the load from the power source when, during operation, the load does not comply with the load protection data.
  • the 'load control module' of Australian Patent No. 704930 suffices to 'sense' a particular load during operation to determine whether it complies with predetermined load protection data, it has a number of inherent disadvantages and shortcomings.
  • the device of Australian Patent No. 704930 relies on the transmission of the load protection data from a remote location at the load back to the 'load control module'.
  • the present invention seeks to provide a system and method to operate a switching device, which overcomes the disadvantages , or at least provides an alternative to, prior art switching devices.
  • the present invention also seeks to provide a system and method to operate a switching device, whereby the data protection settings are provided local to the switching device, rather than at a remote location of a load.
  • the present invention also seeks to provide a system and method to operate a switching device whereby the data protection settings are not required to be sensed at a load, but rather, a reader is used to read a name plate or the like to identify the load, and this identification information only is then transmitted back to the controller.
  • the present invention also seeks to provide a system and method to operate a switching device whereby a memory device, capable of storing data protection settings of a plurality of potential loads, is provided.
  • the present invention provides a control system to operate a switching device to selectively connect a power supply to a load, said control system including:
  • a reader to read an identification plate of a load or store load identification, and, transmit an identification signal of an identified load
  • a controller including:
  • a memory device having a repository of protocol settings pertaining to a plurality of identified loads;
  • the present invention provides a method of operating a switching device to selectively connect a power supply to a load, said method including the steps of:
  • protocol setting associated with said load from a memory device, the memory device including a repository of protocol settings pertaining to a plurality of identified loads;
  • said reader operates using any one or combination of:
  • said identification signal is transmitted by any one or combination of:
  • said controller is provided in a protective housing formed of steel plate or the like.
  • said controller includes a data communications port for setup and monitoring via a communications protocol device, including a PLC, a PC or a human interface screen.
  • a communications protocol device including a PLC, a PC or a human interface screen.
  • said memory device stores energy consumption, history, earth leakage protection settings, overload protection settings, etc.
  • the system/method further includes a monitoring device.
  • said monitoring device is adapted to monitor any one or combination of:
  • Figure 1 illustrates a block diagram of the basic components of the control system in accordance with the present invention, showing how the system controls the operation of a switching device to connect a power supply to a load;
  • FIG. 2 details various component features of the controller and the reader.
  • the control system is adapted to operate a switching device 2 to selectively connect a power supply 3 to a load 4.
  • the load 4 may include but is not limited to a motor, machine, transformer, or other load.
  • the load may be utilised, but is not limited to use in underground or above ground mining environments, or any other environment.
  • the device of the present invention is particularly suitable for use in hazardous conditions whereby, any incorrect adjustment of the switching device may result in a dangerous situation.
  • the control system of the present invention includes a reader 5, and a controller 6.
  • the reader 5 is adapted to read name plate details or other identification details of a load 4, identified by numeral 7, and then transmit an identification signal 8 identifying the load 4 to the controller 6* and in particular, to a processor 9 of the controller 6.
  • the processor 9 receives the identification signal 8 then communicates via communication channel 10 with a memory device 1 1.
  • the memory device 11 includes a repository of protocol settings pertaining to a plurality of potential loads 4.
  • the processor 9 determines from interrogating the memory device 11 the relevant protocols settings pertaining to the connected load 4 and thereby provides a control signal 12 to the switching device 2 to thereby operate the switching device 2 such that the power supply 3 is either connected or disconnected to the load 4.
  • Ongoing connection or disconnection of the power supply 3 to the load 4 is determined by the protocol settings in the memory device 1 1 pertaining to the identified load 4.
  • a reader 5 to read identification details of a load 4 is unique to the present invention;
  • the reader 5 may operate in a variety of manners including but not limited to any one or combination of utilising optical character recognition to read a name plate associated with load 4, or, by utilising a bar code reader or scanner to read an appropriate bar code provided on load 4.
  • Other forms of reader 5 appropriate to this purpose will become apparent to persons skilled in the art, and these readers should be considered to fall within the scope of this invention.
  • the reader 5 may utilise any one or combination of infra-red, Bluetooth or other wireless or communication means or, a hard wired cable or fibre-optic pathway to transmit the information from the load 4 to the reader 5 and from the reader 5 to the processor 9.
  • the controller 6 is preferably provided in a protective housing suitable for use in a hazardous environment. This may include, but is not limited to being formed of steel plate or the like such that it may be fire proof, explosion proof, and the like. Other suitable materials for provision of the housing of the controller will become apparent to persons skilled in the art.
  • the controller 6 may include a data communications port, a human interface, or any other form of interface 13 for set up and monitoring of the communication protocols. Suitable human interfaces may include a PLC, a PC, or any other human interface screen.
  • the memory device 1 1 may optionally store other information pertaining to the load, including, but not limited to energy consumption information, other history information, earth leakage protection settings, overload protection settings, etc.
  • the control system of the present invention may further include a monitoring device for ongoing monitoring of the load 4 during operation. Any one or combination of , the following may be monitored
  • Fig. 2 various component locks of the present invention, which are hereinafter described.
  • SD - Sensing Device Typically a stainless steel device complete with internally mounted electronics. Live line indication, overload CT's, contactor control, EL toroid connection, fibre optic interface and frozen contactor flag relay.
  • LED indication Typically an aluminum device complete with internally mounted electronics. LED indication, earth continuity connection, circuit breaker control, human interface
  • fibre optic interface and memory module data connection.
  • LED indication earth continuity connection, temperature connections, analog/vibration connections, human interface connection, fibre optic interface and data connection.
  • LED indication Typically an aluminum device complete with internally mounted electronics. LED indication, restricted control interlock, fibre optic interface, Ethernet connection and
  • a colour touch screen device complete with internally mounted electronics and APMD data connection.
  • the Automated Protection + Monitoring Device is connected to the remote plant including a plant recognition device.
  • the Plant Recognition Device identifies the plant via a single data communications wire.
  • the Automated Protection + Monitoring Device reads the plant recognition and communicates with the Memory Module (MM), to determine the required protection settings, energy consumption and history.
  • the Memory Module is complete with a data communication's port that allows setup and monitoring via standard communications protocol devices, including but not limited to: PLC's, Industrial PC's and human interface screens.
  • MM Memory Module
  • APMD Automated Protection + Monitoring Device
  • Earth leakage protection settings are stored in the Memory Module (MM) and are compared to the levels sensed by the sensoring device. Based on algorithm excessive values will result in an interruption of power to the plant. 4. Overload
  • Overload protection settings are stored in the Memory Module (MM) and are compared to the levels sensed by the sensonng device, based on the algorithm excessive values will result in an interruption of power to the plant.
  • Overload protection settings are stored in the Memory Module (MM) and are compared to the levels sensed by the sensoring device, based on the algorithm excessive values will result in an interruption of power to the plant.
  • the connected cable and plant Prior to allowing the remote plant to be energized, the connected cable and plant are tested for leakage to earth via injected DC voltage. Excessive levels of leakage will prevent the energization of the remote plant and cable.
  • the single data communication wire connecting the Automated Protection + Monitoring Device (APMD) to the Plant Recognition Device (PRD) is used to monitor the continuity of bonding to earth at the remote load, in the event the bond to earth is of a high resistance than power to the remote plant is interrupted or prevented from energizing. Pilot Communications
  • the sensoring device monitors voltage which is compared to the controlled switch status if voltage is detected when the controlled switch should be open.
  • the Automated Protection + Monitoring Device (APMD) will provide a signal to interrupt power at a higher level.
  • the invention provides additional protection functions, including but not limited to: Phase Loss
  • the Automated Protection + Monitoring Device is connected to the Plant Recognition Device (PRD).
  • the Plant Recognition Device communicates to the Automated Protection + Monitoring Device (APMD) the plant recognition.
  • APMD Automated Protection + Monitoring Device
  • the Automated Protection+ Monitoring Device reads the Memory Module (MM) to determine required protection settings and functions.
  • the earth continuity status is monitored (continuously)
  • the sensoring device performs an earth fault lock out test.
  • the Automated Protection + Monitoring Device will continue to monitor the protection functions of the device. If a trip status is detected the switching devices controlled so as to interrupt power to the remote plan

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

La présente invention concerne un système et un procédé de commande permettant d'activer un dispositif de commutation, en particulier de raccorder sélectivement une alimentation en courant à une charge. Le système de commande (1) comprend un lecteur (5) permettant de lire une plaque d'identification d'une charge (4) et de transmettre un signal d'identification (7), ainsi qu'un dispositif de commande (6). Le dispositif de commande (6) comporte une mémoire (11) qui contient un référentiel de paramétrages de protocole relatifs à une pluralité de charges, ainsi qu'un processeur (9) qui reçoit le signal d'identification et communique avec la mémoire (11) de façon à émettre un signal de commande qui active le commutateur (2).
PCT/AU2012/001043 2011-09-05 2012-09-03 Système et procédé de commande WO2013033759A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2012307073A AU2012307073B2 (en) 2011-09-05 2012-09-03 Control system and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2011903594A AU2011903594A0 (en) 2011-09-05 Control system and method
AU2011903594 2011-09-05

Publications (1)

Publication Number Publication Date
WO2013033759A1 true WO2013033759A1 (fr) 2013-03-14

Family

ID=47831344

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2012/001043 WO2013033759A1 (fr) 2011-09-05 2012-09-03 Système et procédé de commande

Country Status (2)

Country Link
AU (1) AU2012307073B2 (fr)
WO (1) WO2013033759A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006349A1 (fr) * 1993-08-24 1995-03-02 Metal Manufactures Limited Module de controle de la charge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2804060C (fr) * 2004-09-03 2015-08-25 Watlow Electric Manufacturing Company Systeme de commande de puissance
US20070247768A1 (en) * 2006-04-21 2007-10-25 Square D Company Wireless handheld device and circuit breaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006349A1 (fr) * 1993-08-24 1995-03-02 Metal Manufactures Limited Module de controle de la charge

Also Published As

Publication number Publication date
AU2012307073A1 (en) 2014-03-06
AU2012307073B2 (en) 2016-11-24

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