KR102051671B1 - System for prevent mal-operation of power facilities - Google Patents

Abstract

The misoperation prevention system for a power plant according to an embodiment of the present invention includes a lock device installed in a control box of a power plant, a unlocking device for unlocking the lock device, and a unlocking security code for the unlocking device for unlocking the lock device. It includes a server that transmits to the unlock device.

Description

System for preventing tampering of power facilities

The present invention relates to a system for preventing erroneous operation of electric power equipment.

Conventionally, when performing a truce operation for the maintenance of power equipment, it was only dependent on a method of visually confirming whether the operator is authorized to operate the operation equipment. In other words, it was determined with reference to the equipment operation procedure whether or not the operation equipment of many substations may actually be operated. In addition, the worker is required to go through the process of requesting and confirming work approval through wired / wireless communication with a senior manager who manages the operation of the power facility (eg, power exchange, feeder, feeder or distribution command room).

However, this method has a problem in that a misoperation due to a worker's misunderstanding or a judgment error cannot be blocked at the source, and thus a malfunction can not be prevented without a malfunction of the power equipment.

In particular, the GIS (Gas Insulated Switchgear System) facility is complicated, and the field work is difficult, but all the work on the site has to be relied on by the contractor and the manufacturer. In the supervisory system, there are limitations in securing the safety of many workers and preventing worker errors. Therefore, problems due to many misoperation are generated in the GIS facility. In addition, DS (disconnector) and ES (earthing switch) field operation box among the conventional GIS facilities are easily operated and randomly released within the operation box even though the door is easy to open by the site operator and there is an internal inter-lock condition. There is a problem that a large accident frequently occurs according to this is possible.

The following Patent Document 1 relates to a “worker error prevention wireless sensor network integrated system”, and installs a sensor that recognizes environmental changes related to movement or touch around an operating facility, and transmits a detection signal to a worker error prevention wireless sensor network integrated system. It is a technology that draws attention to the operator by sending a signal and generating the result of general alarm and alarm alarm through the field speaker.

The invention disclosed in Patent Document 1 has a problem that is possible only when an operator recognizes an alarm and himself or herself recognizes an error of a work being performed. Therefore, there is a problem that the worker can not block the error or unauthorized operation in the abnormal psychological state.

Korean Patent Publication No. 10-1580188

The present invention is to solve the above-mentioned problems of the prior art, the decommissioning device transmits the information on the power equipment to the server using short-range wireless communication, to determine the validity of the work using this, if the work is valid, By releasing the lock state by using the security code security code transmitted to the unlocking device, it provides a system for preventing the erroneous operation of the power equipment that can prevent the erroneous operation of the power equipment.

System for preventing misoperation of power equipment according to an embodiment of the present invention comprises a plurality of locking devices respectively installed in the control box of a plurality of power equipment; A unlocking device for unlocking the plurality of locking devices; And receiving information on the plurality of power facilities from the unlocking device, determining a work validity and a work order for the unlocking device from the information on the plurality of power facilities, and unlocking the unlocking device according to the work effectiveness. A server configured to determine whether or not to release the security code to the unlocking device so that the unlocking device releases the plurality of locks sequentially according to the work order; It includes.

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In one embodiment, each of the plurality of locking devices, the storage unit for storing information about the corresponding power equipment; A first short range wireless communication unit performing short range wireless communication with the decommissioning device; And a locking unit that locks the control box of the corresponding power facility to prevent a wrong operation of the corresponding power facility. It may include.

Here, the decommissioning device, a second short-range wireless communication unit for receiving information on the plurality of power facilities from the first short-range wireless communication unit, transmits the information on the plurality of power facilities to the server, the security security from the server It may include a first wireless communication unit for receiving a code and an unlocking unit for releasing the lock state of the lock unit based on the unlock security code.

Here, when the unlocking security code is input through the plurality of electromagnets of which the polarity is changed in accordance with the direction of the current and the first wireless communication unit, the unlocking unit controls the polarities of the plurality of electromagnets based on the unlocking security code. It may include a first control unit.

Here, the locking unit includes a plurality of locking holes coupled to the plurality of locking holes in accordance with the position of the plurality of lock holes and the position of the plurality of lock holes and the locking of the electromagnet, the plurality of lock pins When combined with the plurality of lock holes, it may include a locking projection to release the locked state.

Here, the unlock security code may include information on the polarity of the plurality of electromagnets for coupling the plurality of lock holes and the plurality of lock pins.

In another embodiment, the unlocking unit, a plurality of motors, a plurality of rotating plates rotated by the rotation of the motor, a plurality of magnets whose position is changed by the rotation of the rotating plate, to the security code security code received from the server It may include a second control unit for driving the plurality of motors based on.

Here, the locking unit, a plurality of lock pins whose position is adjusted according to the position of the plurality of magnets, a plurality of lock holes coupled to the plurality of lock holes according to the position of the plurality of lock pins and the plurality of lock pins When combined with the plurality of lock holes may include a locking projection to release the lock state.

Here, the unlock security code may include information on the position of the plurality of magnets to couple the plurality of lock holes and the plurality of lock pins.

According to an embodiment of the present invention, the decommissioning device transmits the information on the power equipment to the server using short-range wireless communication, and determines the validity of the job using this, and if the operation is valid, the decommissioning security transmitted to the decommissioning device By releasing the locked state by using a cord, there is an effect that can prevent the erroneous operation of the power equipment.

1 is a block diagram illustrating a misoperation prevention system of a power plant according to an embodiment of the present invention.
FIG. 2 is a diagram for describing an embodiment of an operation of determining a job validity of a server illustrated in FIG. 1.
3 is a view for explaining an embodiment of the locking device and the unlocking device shown in FIG.
4 is a view for explaining an embodiment of the locking unit and the unlocking unit shown in FIG.
5 is a view for explaining another embodiment of the locking unit and the unlocking unit shown in FIG.
6 is a view for explaining an embodiment of the unlock security code.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

In the drawings referred to in the present invention, components having substantially the same configuration and function will be denoted by the same reference numerals, and the shapes and sizes of the elements in the drawings may be exaggerated for clarity.

1 is a block diagram illustrating a misoperation prevention system of a power plant according to an embodiment of the present invention.

Referring to FIG. 1, the misoperation prevention system 10 of a power facility according to an embodiment of the present invention may include a locking device 100, a unlocking device 200, and a server 300.

Here, the control box of the power equipment can accommodate a field operation switch, a gas valve, an operation lever, etc. for controlling power equipment such as a breaker (CB), a disconnector (DS), and a ground switch (ES) of a substation. .

The locking device 100 may be installed in the control box of the power equipment to lock the control box from being opened. The lock device 100 may store information on the installed power equipment, and when the unlocking device 200 approaches, the lock device 100 may transmit information about the power equipment to the unlocking device 200 through short-range wireless communication.

Here, the short range wireless communication may be implemented using NFC (Near Field Communication) technology. In addition, the information on the power equipment may include information on the type, location, state, etc. of the power equipment.

The unlocking device 200 is for releasing the lock state of the locking device 100, and may receive information about a power facility from the locking device 100 through short-range wireless communication and transmit the information to the server 300 to the server 300. When the unlock security code is received from 300, the lock state of the locking device 100 may be released using the unlock security code. Here, the unlocking device 200 may transmit the information on the unlocking device 200 to the server 300 together with the information on the power facilities.

The server 300 may be connected to the unlocking device 200 through wireless communication, and may receive information about a power facility in which the locking device 100 is installed from the unlocking device 200. The server 300 may determine the validity of the work on the unlocking device 200 by using the information on the power equipment. In one embodiment, the server 300 may store information about the unlocking device 200 that can work for each work facility. In addition, the server 300 may store information on the work order for determining the validity of the work.

When the server 300 receives information on a power facility from a specific unlocking device 200, the server 300 may determine whether the unlocking device 200 may work on the power facility. In addition, when the decommissioning device 200 can work on the power facility, the server 300 is a breakdown of the operation order of the decommissioning device 200 (for example, the details of the transmission of the decommissioning security code to the decommissioning device 200) If it can be determined using a) and the predetermined work order, it is determined that the work on the power equipment is valid, the lock security code corresponding to the lock device 100 installed in the power equipment is unlocked May transmit to the device 200.

FIG. 2 is a diagram for describing an embodiment of an operation of determining a job validity of a server illustrated in FIG. 1.

Referring to FIG. 2, the server 300 includes, for the first locking device 100a, the second locking device 100b, and the third locking device 100b, a first power device and a second power device in which the locking devices are installed. The work order of the power equipment and the third power equipment may be set in order of the first power equipment, the second power equipment, and the third power equipment. In this case, when the unlocking device 200 receives the information on the third power equipment from the third locking device 100c and transmits the information to the server 300, the server 300 first, the unlocking device 200 When it is determined whether the operation on the third locking device 100c is possible, and when it is determined that the operation is possible, when the unlocking device 200 completes the work on the first power facility and the second power facility, The unlock security code for the third lock device 100c may be transmitted to the unlock device 200.

3 is a view for explaining an embodiment of the locking device and the unlocking device shown in FIG.

Referring to FIG. 3, the locking device 100 according to an embodiment of the present invention may include a storage unit 110, a first short range wireless communication unit 120, and a locking unit 130.

In addition, the unlocking device 200 according to an embodiment of the present invention may include a first wireless communication unit 210, a second short-range wireless communication unit 220 and the unlocking unit 230.

The storage unit 110 may store information about a power facility in which the locking device 100 is installed. Here, the information on the power equipment may include an identification number of the power equipment, the state of the power equipment and the like.

The first short range wireless communication unit 120 is for performing short range wireless communication with the second short range wireless communication unit 220 of the locking device 200. When the second short range wireless communication unit 220 is within a communication range, Information about the power equipment stored in the storage 110 may be transmitted to the second short range wireless communication unit 220.

In one embodiment, short-range wireless communication may be implemented using an RFID technology such as Near Field Communication (NFC), in which case, the first short-range wireless communication unit 120 may be an NFC tag, the second short-range wireless communication unit 220 may be an NFC reader.

The locking unit 130 may lock the control box of the power plant to prevent a false operation of the power plant. Here, the locked state of the locking unit 130 may be released by the unlocking unit 230 of the unlocking device 200.

The locking unit 130 and the unlocking unit 230 will be described in more detail below with reference to FIGS. 4 to 5.

The first wireless communication unit 210 may transmit information on the power facility received by the second short range wireless communication unit 220 to the server 220.

4 is a view for explaining an embodiment of the locking unit and the unlocking unit shown in FIG.

Referring to FIG. 4, the unlocking unit 230 according to an embodiment of the present invention may include a plurality of electromagnets 232 and a first control unit 234.

In addition, the locking unit 130 according to an embodiment of the present invention may include a plurality of locking holes 132 and the locking protrusion 136.

The polarities of the currents of the plurality of electromagnets 232a, 232b, 232c, and 232d may be changed according to the control of the first controller 234. Here, one side of the plurality of electromagnets (232a, 232b, 232c, 232d) has a attraction force or repulsive force in relation to one side of the plurality of permanent magnets 132 for adjusting the position of the locking hole of the locking unit 130 according to the polarity Can work.

The first controller 234 may adjust the polarities of the plurality of electromagnets 232a, 232b, 232c, and 232d based on the unlocking security code received through the first wireless communication unit 210. Here, the decommissioning security code may include information on the polarity of the plurality of electromagnets (232a, 232b, 232c, 232d).

In one embodiment, the locking unit 130 may further include a plurality of permanent magnets 132, the first elastic member 133 to change the position of the locking hole 134 according to the polarity of the electromagnet 232. Can be. In addition, the locking pin 135 may further include a second elastic member 137 to release the locking state of the locking protrusion 136 by the combination of the locking hole 134.

The first control unit 234 changes the polarity of the plurality of electromagnets 232a, 232b, 232c, and 232d by adjusting the direction of the current applied to the plurality of electromagnets 232a, 232b, 232c, and 232d according to the unlocked security code. In this case, the current may not be applied. Here, the security lock code may be composed of a combination of S one of the plurality of electromagnets (232a, 232b, 232c, 232d) is switched to the S pole, N is switched to the N pole and no current is applied. Can be. This unlock security code may be determined according to the length for the lock pin 135 is coupled to the lock hole 134.

For example, as shown in FIG. 4, in order for the first locking hole 134a to be coupled with the first locking pin 135a, a repulsive force must be applied between the first electromagnet 232a and the first permanent magnet 132a. The polarity of one side of the first electromagnet 232a (a side adjacent to the first permanent magnet 132a) should be N. In this manner, when the polarity of the second electromagnet 232b is S, the polarity of the third electromagnet 232c is O, and the polarity of the fourth electromagnet 232d is N, the plurality of locks of the locking protrusion 136 are locked. The pins 135 may be coupled to the plurality of lock holes 132a to 132d. In this case, the unlock security code can be NSON. When the plurality of locking pins 135a to 135d of the locking protrusion 136 are coupled to the plurality of locking holes 132a to 132d, respectively, the locking protrusion 136 moves according to a mechanical relationship with the second elastic member 137. The lock state can be released.

5 is a view for explaining another embodiment of the locking unit and the unlocking unit shown in Figure 3, Figure 6 is a view for explaining an embodiment of the unlock security code.

Referring to FIG. 5, the unlocking unit 230 according to another embodiment of the present invention may include a plurality of motors 236, a plurality of rotating plates 237, a plurality of magnets 238, and a second control unit 236. It may include.

The second control unit 235 may adjust the positions of the plurality of magnets 238 attached to the plurality of rotating plates 237 by controlling the plurality of motors 236 according to the unlocking security code received from the server 300. . Here, the positions of the plurality of magnets 238 may determine whether the locking pin 135 and the locking hole 132 are coupled by adjusting the direction of the corresponding locking pin 135.

Referring to FIG. 6, a code of A to F may be designated at a position of the magnet 238 according to the rotation of the rotating plate 237, and in this case, the unlocking security code may be configured as a combination of A to F. For example, in the case of Figure 5, the unlock security code may be AFAD.

When the plurality of locking pins 135 are coupled to the plurality of locking holes 134, the fastening member 138 inserted to prevent the locking protrusion 136 from moving out is pulled out of the binding portion, and thus the second elastic member ( According to the mechanical relationship with 137, the locking protrusion 136 may be moved to release the locked state.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, but is defined by the claims below, and the configuration of the present invention may be modified in various ways without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art that the present invention may be changed and modified.

10: erroneous operation prevention system of power equipment
100: locking device
110: storage unit
120: first short-range wireless communication unit
130: locking part
200: unlocking device
210: first wireless communication unit
220: second short-range wireless communication unit
230: unlocking
300: server

Claims (12)

A plurality of locking devices respectively installed in the control box of the plurality of power facilities;
A unlocking device for unlocking the plurality of locking devices; And
Receive information on the plurality of power equipments from the decommissioning device, determine the work validity and the work order for the decommissioning device from the information on the plurality of power facilities, and whether the decommissioning device is unlocked according to the work effectiveness A server that transmits a decommissioning security code to the decommissioning device for determining that the decommissioning device releases the plurality of lock devices sequentially according to the work order; Including,
Each of the plurality of locking devices,
A storage unit which stores information on corresponding power equipment;
A first short range wireless communication unit performing short range wireless communication with the decommissioning device; And
A locking part for locking the control box of the corresponding power equipment to prevent a wrong operation of the corresponding power equipment; Including,
The disengagement device,
A second short range wireless communication unit which receives information on the power facility from the first short range wireless communication unit;
A first wireless communication unit which transmits information about the power facility to a server and receives a unlock security code from the server; And
A unlocking unit for releasing a lock state of the lock unit based on the unlock security code; Including,
The unlocking unit,
A plurality of electromagnets whose polarity is changed in accordance with the direction of the current; And
A first controller configured to adjust polarities of the plurality of electromagnets based on the unlocked security code when the unlocked security code is input through the first wireless communication unit; Including,
The locking portion,
A plurality of locking holes whose positions are adjusted according to the polarities of the electromagnets; And
A plurality of lock pins coupled to the plurality of lock holes according to positions of the plurality of lock holes, wherein the locking protrusions are released when the plurality of lock pins are coupled to the plurality of lock holes; Including,
The decommissioning security code is a misoperation prevention system of a power facility comprising information on the polarity of the plurality of electromagnets to allow the plurality of lock holes and the plurality of lock pins to be coupled.
delete delete delete delete delete delete delete delete A plurality of locking devices respectively installed in the control box of the plurality of power facilities;
A unlocking device for unlocking the plurality of locking devices; And
Receive information on the plurality of power equipments from the decommissioning device, determine the work validity and the work order for the decommissioning device from the information on the plurality of power facilities, and whether the decommissioning device is unlocked according to the work effectiveness A server that transmits a decommissioning security code to the decommissioning device for determining that the decommissioning device releases the plurality of lock devices sequentially according to the work order; Including,
Each of the plurality of locking devices,
A storage unit which stores information on corresponding power equipment;
A first short range wireless communication unit performing short range wireless communication with the decommissioning device; And
A locking part for locking the control box of the corresponding power equipment to prevent a wrong operation of the corresponding power equipment; Including,
The disengagement device,
A second short range wireless communication unit which receives information on the power facility from the first short range wireless communication unit;
A first wireless communication unit which transmits information about the power facility to a server and receives a unlock security code from the server; And
A unlocking unit for releasing a lock state of the lock unit based on the unlock security code; Including,
The unlocking unit,
A plurality of motors;
A plurality of rotating plates rotating by the rotation of the motor;
A plurality of magnets whose positions are changed by rotation of the rotating plate;
A second control unit which drives the plurality of motors based on the unlock security code received from the server; Including,
The locking portion,
A plurality of locking pins whose positions are adjusted according to the positions of the plurality of magnets; And
A plurality of lock holes coupled to the plurality of lock holes according to positions of the plurality of lock pins; And
A locking protrusion part in which the locking state is released when the plurality of locking pins are coupled to the plurality of locking holes; Including,
The security lock code is a misoperation prevention system of the power equipment including the information on the position of the plurality of magnets to couple the plurality of lock holes and the plurality of lock pins.
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