CN110935120A - Transformer substation electric power system and fire extinguishing system information fusion interaction control device - Google Patents

Transformer substation electric power system and fire extinguishing system information fusion interaction control device Download PDF

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Publication number
CN110935120A
CN110935120A CN201911282506.5A CN201911282506A CN110935120A CN 110935120 A CN110935120 A CN 110935120A CN 201911282506 A CN201911282506 A CN 201911282506A CN 110935120 A CN110935120 A CN 110935120A
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China
Prior art keywords
fire
control
plug
remote control
control device
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CN201911282506.5A
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Chinese (zh)
Inventor
刘娴
张传羽
荀丽丹
吴琪
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Nanjing Institute of Mechatronic Technology
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Nanjing Institute of Mechatronic Technology
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Priority to CN201911282506.5A priority Critical patent/CN110935120A/en
Publication of CN110935120A publication Critical patent/CN110935120A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/04Control of fire-fighting equipment with electrically-controlled release
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24Circuit arrangements for boards or switchyards
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)

Abstract

The utility model provides a transformer substation's electric power system and fire extinguishing systems information fusion mutual controlling means, fuses transformer substation's electric power system automation data information and transformer substation's traditional fire control automation system information through gathering, after the normalization processing for more accurate comprehensive judgement transformer substation's condition of a fire is reported an emergency and asked for help or increased vigilance, but the condition of a fire in the corresponding fire extinguishing apparatus control station in the backup start-up station after traditional fire control automation system appears the maloperation, refuses to move, carries out protective control to transformer substation's electrical equipment running state. The transformer substation electric power system and fire protection system information fusion interaction control device meets the requirements of the fire protection automation control system, namely the monitoring standard of the load transformer substation electric power system, and is a device for ensuring the stable operation of the transformer substation electric power automation system by actively fighting fire.

Description

Transformer substation electric power system and fire extinguishing system information fusion interaction control device
Technical Field
The invention belongs to the technical field of electricians, and particularly relates to an information fusion interaction control device for a transformer substation power system and a fire fighting system.
Background
The power grid construction development is an important basic industry for the economy, science and technology and civil construction of China, and is an important carrier for energy to serve the society. The transformer substation is a main framework of the whole power grid and is an important junction node for electric energy change transmission, and stable operation of the transformer substation is a premise and key for stable operation of the whole power grid.
A large number of electrical devices are arranged in a transformer substation, primary devices including high voltage, such as transformers, circuit breakers and capacitance reactors, and various secondary devices in a computer monitoring system of the transformer substation, such as measurement and control, protection and the like. The power equipment runs in a live mode for a long time, and the equipment is very easy to generate heat, age in insulation and even cause fire. Especially, pure oil is commonly used in the transformer for heat dissipation and insulation, so that once a transformer fire disaster occurs, large accidents such as transformer explosion and the like are easily caused, huge loss is caused to a transformer substation, and stable power supply of the society is seriously influenced. Therefore, fire safety is one of the important guarantees for stable operation of the substation.
However, at present, most of fire-fighting centralized control systems are designed and manufactured by enterprises in the fire-fighting industry, most of products are designed aiming at civil and commercial buildings, and a fire-fighting automatic monitoring system aiming at the power industry is lacked. The fire alarm and the fire extinguishing control are completely detected, predicted and controlled by the fire alarm automation system, and information such as the running state of more electrical equipment cannot be acquired to be used as a basis for judging the fire and judging the fire linkage control, so that the accuracy of the fire control is influenced. The monitoring and control process of the fire-fighting system cannot be known and intervened by the electric power system, and if the fire-fighting automation system has misjudgment or failure in fire extinguishing execution, the electric power system has no active self-rescue capability.
Disclosure of Invention
Aiming at the problems, the invention provides an information fusion and interaction control device for a power system and a fire protection system of a transformer substation, which is accessed to fuse information of the power system and the fire protection system in the transformer substation, integrates information of the power system and the fire protection automation system, accurately judges the fire situation in the transformer substation closely and can control related fire protection facilities when a fire occurs.
A transformer substation electric power system and fire protection system information fusion interaction control device comprises a shell, a logic judgment module arranged in the control device, a front control panel, a rear plug-in slot and a plug-in board arranged in the control panel;
the control panel is provided with 24 pairs of remote control manual control buttons, each pair of remote control manual control buttons consists of a red button and a green button, the red button is a remote control switch-on button, the green button is a remote control switch-off button, each button is internally provided with an LED lamp, and after a logic judgment module arranged in the control device judges that a remote control target object needs to be operated, the corresponding operation button is lightened;
the plug-in board comprises a power supply plug-in board, a CPU plug-in board, a remote signaling plug-in board, a remote control plug-out board and a direct current acquisition board;
the control device is provided with 3 remote communication plug-in boards, and each remote communication plug-in board is provided with 28 remote communication signals;
the control device is provided with 2 remote control plug-in boards, each remote control plug-in board corresponds to 14 remote control plugs, and the remote control plug-in boards correspond to manual remote control buttons on a panel of the device through software configuration;
the control device is provided with 1 CPU plug-in, the CPU plug-in is provided with 3 paths of Ethernet interfaces ETH1, ETH2 and ETH3, wherein ETH1 is used as a factory debugging port, the other two paths are used as Ethernet communication ports, and 2 paths of RS232 serial ports, one path of IRIG-B time-setting ports and ports which are correspondingly grounded are additionally arranged;
the control device is provided with 1 direct current acquisition board and supports 6 direct current measurement inputs.
Further, the remote control manual control buttons are divided into 4 groups from top to bottom, each group is divided into 6 pairs of buttons from left to right, the 6 pairs of buttons correspond to 6 control objects, and a label column is arranged below each pair of buttons and used for representing the names of the control objects; a label bar is arranged on the right side of each group of buttons and used for identifying, and the identification represents a defense area for the control object of the group;
furthermore, a row of device self-checking signal indicator lamps are arranged on the left side of the control panel and indicate whether the device is in a normal operation state, an alarm state, a time synchronization abnormal state or a network communication interruption state.
Furthermore, different plug-in boards are added in the empty plug-in slots according to the field requirements so as to meet the actual technical requirements.
Furthermore, the control device directly communicates with an automatic bay level test and protection device of the power system through IEC61850, IEC103 and other network protocols by utilizing ETH2 and ETH3 Ethernet communication ports to complete the data acquisition of the running state of the primary power equipment; a fire alarm host of a traditional fire automation system collects information such as fire detection of a transformer substation and operation states of fire monitoring equipment and then sends the information to the control device through an Ethernet communication port.
Furthermore, the remote control outlet plug-in board is directly exported to the fire-fighting equipment in a cable hard-wired mode, and is manually controlled through a remote control manual control button of the control panel, so that remote control operation on the fire-fighting equipment is completed.
Furthermore, when the remote control outlet plug-in board is connected with external equipment, the remote control main starting relay and the switching-on and switching-off relays are connected in series, each path of remote control main starting relay needs to be started through a corresponding fire alarm signal, and the remote control signal cannot be output under the condition that no fire alarm signal exists.
The invention achieves the following beneficial effects: the utility model provides a transformer substation's electric power system and fire extinguishing system information fusion interaction controlling means, integrated electric power system and fire extinguishing system data guarantee the rate of accuracy of fire control, and the faulty equipment can put out a fire fast when guaranteeing the condition of a fire to take place, and all the other equipment are in time withdrawn from the operation, reduce the fault range, and less loss guarantees the steady operation of electric wire netting.
Drawings
Fig. 1 is a schematic view of a control panel of an information fusion interaction control device of a substation power system and a fire protection system.
Fig. 2 is a schematic back structure diagram of the information fusion interaction control device for the substation power system and the fire protection system.
Fig. 3 is an overall system architecture diagram of the power system and the fire fighting system in the substation.
Fig. 4 is a flow chart of fire alarm determination of the information fusion interaction control device of the transformer substation power system and the fire protection system.
Fig. 5 is a schematic diagram of the control outlet loop wiring of the information fusion interaction control device of the substation power system and the fire protection system.
In the figure, 1-remote control manual control button, 2-label column, 3-label column, 4-self-checking signal indicator light, 5-plug-in slot, 6-power plug-in board, 7-remote signaling plug-in board, 8-remote control plug-in board, 9-CPU plug-in board and 10-direct current collecting plug-in board.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the drawings in the specification.
The utility model provides a transformer substation's electric power system and fire extinguishing system information fusion interaction controlling means, includes the shell, places logical judgement module in the controlling means in, leading control panel and rearmounted plug-in components groove 5 and install the plug-in components board wherein.
As shown in fig. 1, the control panel is provided with 24 pairs of remote manual control buttons 1, the remote manual control buttons 1 are divided into 4 groups from top to bottom, each group is divided into 6 pairs of buttons from left to right, which correspond to 6 control objects, and a label column 2 is arranged below each pair of buttons and used for representing the names of the control objects; a label bar 3 is arranged on the right side of each group of buttons and used for marking, and the marking represents a defense area for the control object of the group; each pair of remote control manual control buttons 1 consists of a red button and a green button, the red button is a remote control switch-on button, the green button is a remote control switch-off button, an LED lamp is arranged in each button, and after a logic judgment module arranged in the control device judges that a remote control target object needs to be operated, the corresponding operation button is lightened, a watchman is prompted to carry out correct operation, and misoperation is prevented.
A row of device self-checking signal indicator lamps 4 are arranged on the left side of the control panel and indicate whether the device is in a normal operation state, an alarm state, a time synchronization abnormal state or a network communication interruption state.
As shown in fig. 2, the cards include a power card 6, a CPU card 9, a remote signaling input card 7, a remote signaling output card 8, and a dc collecting card 10.
The power card 6 supports DC220V power, is equipped with a power switch, and has two devices "device alarm", "device failure" on the terminals, self-establish signal development and government power access. The control device is provided with 3 remote signaling add-on boards 7, each remote signaling add-on board 7 being provided with 28 remote signaling signals. The control device is provided with 2 remote control plug-in boards 8, each remote control plug-in board 8 corresponds to 14 remote control plugs, and the remote control plug-in boards correspond to manual remote control buttons on a panel of the device through software configuration. The control device is provided with 1 CPU plug-in, the CPU plug-in is provided with 3 paths of Ethernet interfaces ETH1, ETH2 and ETH3, wherein ETH1 is used as a factory debugging port, the other two paths are used as Ethernet communication ports, and 2 paths of RS232 serial ports, one path of IRIG-B time-setting ports and ports which are correspondingly grounded are additionally arranged. The control device is provided with 1 direct current acquisition plug-in board 10 and supports 6 direct current measurement inputs.
According to the field requirement, different plug-in boards can be added to the empty plug-in slot 5 to meet the actual technical requirement.
The control device directly communicates with an automatic bay level test and protection device of the power system through IEC61850, IEC103 and other network protocols by utilizing ETH2 and ETH3 Ethernet communication ports to finish the data acquisition of the running state of the primary power equipment; a fire alarm host of a traditional fire automation system collects information such as fire detection of a transformer substation and operation states of fire monitoring equipment and then sends the information to the control device through an Ethernet communication port.
The remote control outlet plug-in board is directly exported to the fire-fighting equipment in a cable hard-wired mode, and is manually controlled through a remote control manual control button 1 of a control panel, so that remote control operation on the fire-fighting equipment is completed.
Fig. 3 is a diagram of the overall system architecture of the power system and the fire protection system in the substation, as shown in fig. 3, the control device, the automatic monitoring system of the power system of the substation and the background thereof are hung on the ethernet together, the automatic bay level device of the power system, the power system and the control device communicate with each other through IEC61850, IEC103 and other network protocols, the bay level protection and detection device transmits the operating state signal of the electrical primary equipment to the control device in real time, and the control device issues a remote control command to the automatic bay level device of the power system through the ethernet. When the control device is set to be in a manual control mode, remote control prompt information is sent to the background of the automatic monitoring system of the power system of the transformer substation through the Ethernet, and a person on duty manually sends remote control to the bay level protection device after the background of the automatic monitoring system of the power system confirms.
The traditional fire-fighting detection device and the fire-fighting equipment are communicated with a fire alarm host, and the fire alarm host initiates control to the fire-fighting equipment. In the overall system architecture of the power system and the fire-fighting system in the transformer substation, a fire alarm host is directly hung on the Ethernet and is communicated with the control device to upload fire-fighting detection signals and fire-fighting alarm signals, and the control device directly controls fire-fighting equipment in a hard-wired mode. Monitoring signals which are not connected with a fire alarm host in the transformer substation can be connected with the control device to improve the signal source of the fire-fighting automation system.
Fig. 4 is a flow chart of fire alarm determination. As shown in the figure, when the fire alarm host sends out a fire alarm signal, the control device judges whether the relevant fire extinguishing equipment correctly acts according to the working condition of the fire extinguishing equipment, if the relevant fire extinguishing equipment correctly acts, whether the electrical equipment in a defense area correctly exits from the operation is judged according to the operation condition of the electrical primary equipment, and if the relevant fire extinguishing equipment does not exit from the operation, the equipment is separated by remote control. If the fire alarm host sends out the fire alarm signal and the relevant fire extinguishing equipment does not operate correctly, the control device further judges whether the fire really happens or not, if the fire is judged to exist, the control device further checks whether the relevant fire detecting equipment operates normally or not, further confirms whether the fire signal is misreported or not, and if the fire detecting equipment works normally, sends out a remote control command to control the on-site fire extinguishing equipment.
Fig. 5 is a schematic diagram of the control outlet circuit wiring of the device. As shown in the figure, when the remote control outlet plug-in board is connected with external equipment, the remote control main starting relay and the opening and closing relay are connected in series, each path of remote control main starting relay must be started through a corresponding fire alarm signal, and under the condition that no fire alarm signal exists, the remote control signal cannot be output to prevent operators on duty from misoperation.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.

Claims (7)

1. The utility model provides a mutual controlling means of transformer substation's electric power system and fire extinguishing system information fusion, includes the shell, places logical judgement module, leading control panel and the rearmounted plug-in components groove in the controlling means in and installs the plug-in components board wherein, its characterized in that:
the control panel is provided with 24 pairs of remote control manual control buttons, each pair of remote control manual control buttons consists of a red button and a green button, the red button is a remote control switch-on button, the green button is a remote control switch-off button, each button is internally provided with an LED lamp, and after a logic judgment module arranged in the control device judges that a remote control target object needs to be operated, the corresponding operation button is lightened;
the plug-in board comprises a power supply plug-in board, a CPU plug-in board, a remote signaling plug-in board, a remote control plug-out board and a direct current acquisition board;
the control device is provided with 3 remote communication plug-in boards, and each remote communication plug-in board is provided with 28 remote communication signals;
the control device is provided with 2 remote control plug-in boards, each remote control plug-in board corresponds to 14 remote control plugs, and the remote control plug-in boards correspond to manual remote control buttons on a panel of the device through software configuration;
the control device is provided with 1 CPU plug-in, the CPU plug-in is provided with 3 paths of Ethernet interfaces ETH1, ETH2 and ETH3, wherein ETH1 is used as a factory debugging port, the other two paths are used as Ethernet communication ports, and 2 paths of RS232 serial ports, one path of IRIG-B time-setting ports and ports which are correspondingly grounded are additionally arranged;
the control device is provided with 1 direct current acquisition board and supports 6 direct current measurement inputs.
2. The information fusion interaction control device for the substation power system and the fire fighting system according to claim 1, characterized in that: the remote control manual control buttons are divided into 4 groups from top to bottom, each group is divided into 6 pairs of buttons from left to right and corresponds to 6 control objects, and a label column is arranged below each pair of buttons and is used for representing the names of the control objects; and a label bar is arranged at the right side of each group of buttons and used for identification, and the identification represents a defense area for the group of control objects.
3. The information fusion interaction control device for the substation power system and the fire fighting system according to claim 1, characterized in that: a row of device self-checking signal indicator lamps are arranged on the left side of the control panel and indicate whether the device is in a normal operation state, an alarm state, a time synchronization abnormal state or a network communication interruption state.
4. The information fusion interaction control device for the substation power system and the fire fighting system according to claim 1, characterized in that: different plug-in boards are added in the empty plug-in groove according to the field requirement so as to meet the actual technical requirement.
5. The information fusion interaction control device for the substation power system and the fire fighting system according to claim 1, characterized in that: the control device directly communicates with an automatic bay level test protection device of the power system through a network protocol such as IEC61850 or IEC103 by utilizing ETH2 and ETH3 Ethernet communication ports to complete the data acquisition of the running state of the primary power equipment; a fire alarm host of a traditional fire automation system collects information such as fire detection of a transformer substation and operation states of fire monitoring equipment and then sends the information to the control device through an Ethernet communication port.
6. The information fusion interaction control device for the substation power system and the fire fighting system according to claim 1, characterized in that: the remote control outlet plug-in board is directly exported to the fire-fighting equipment in a cable hard wiring mode, and is manually controlled through a remote control manual control button of the control panel, so that remote control operation on the fire-fighting equipment is completed.
7. The information fusion interaction control device for the substation power system and the fire fighting system according to claim 1, characterized in that: when the remote control outlet plug-in board is connected with external equipment, the remote control outlet plug-in board is connected with a remote control main starting relay and an opening and closing relay in series, each path of remote control main starting relay must be started through a corresponding fire alarm signal, and the remote control signal cannot be output under the condition that no fire alarm signal exists.
CN201911282506.5A 2019-12-13 2019-12-13 Transformer substation electric power system and fire extinguishing system information fusion interaction control device Pending CN110935120A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113656335A (en) * 2021-08-17 2021-11-16 北京城建设计发展集团股份有限公司 Access strategy system for data fusion of fire fighting

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003256964A (en) * 2002-02-27 2003-09-12 Nef:Kk Automatic dangerous area setting device
JP3154176U (en) * 2009-07-21 2009-10-08 小林 一彦 Fire simulator for fire fighting training
CN205265349U (en) * 2015-10-08 2016-05-25 北京科诺伟业科技股份有限公司 Little electric wire netting intelligence measurement and control device
CN205730093U (en) * 2016-05-04 2016-11-30 浙江中太泵业科技有限公司 Fire hydrant cabinet control panel
CN109085808A (en) * 2018-08-14 2018-12-25 电子科技大学 The sub- equipment simulating device of intelligent substation assist control system and test method
CN109765827A (en) * 2019-02-19 2019-05-17 国电南瑞科技股份有限公司 Intelligent substation firefighting monitoring system and method
CN110531690A (en) * 2019-08-27 2019-12-03 南瑞集团有限公司 A kind of long-range fire-fighting centralized monitoring system of unattended substation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003256964A (en) * 2002-02-27 2003-09-12 Nef:Kk Automatic dangerous area setting device
JP3154176U (en) * 2009-07-21 2009-10-08 小林 一彦 Fire simulator for fire fighting training
CN205265349U (en) * 2015-10-08 2016-05-25 北京科诺伟业科技股份有限公司 Little electric wire netting intelligence measurement and control device
CN205730093U (en) * 2016-05-04 2016-11-30 浙江中太泵业科技有限公司 Fire hydrant cabinet control panel
CN109085808A (en) * 2018-08-14 2018-12-25 电子科技大学 The sub- equipment simulating device of intelligent substation assist control system and test method
CN109765827A (en) * 2019-02-19 2019-05-17 国电南瑞科技股份有限公司 Intelligent substation firefighting monitoring system and method
CN110531690A (en) * 2019-08-27 2019-12-03 南瑞集团有限公司 A kind of long-range fire-fighting centralized monitoring system of unattended substation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113656335A (en) * 2021-08-17 2021-11-16 北京城建设计发展集团股份有限公司 Access strategy system for data fusion of fire fighting

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Application publication date: 20200331