CN106712308B - Portable opening and closing device and method - Google Patents
Portable opening and closing device and method Download PDFInfo
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- CN106712308B CN106712308B CN201710210568.XA CN201710210568A CN106712308B CN 106712308 B CN106712308 B CN 106712308B CN 201710210568 A CN201710210568 A CN 201710210568A CN 106712308 B CN106712308 B CN 106712308B
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- 230000009471 action Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 42
- 239000003990 capacitor Substances 0.000 claims description 22
- 238000004146 energy storage Methods 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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Abstract
The invention discloses a portable opening and closing device, which comprises an actuator, wherein the actuator comprises a microprocessor, a pulse generating unit, an opening execution unit, a fixing unit and a first power supply unit, the pulse generating unit is connected with the microprocessor and the opening execution unit and used for receiving a pulse control signal of the microprocessor and generating an electric pulse to the opening execution unit, and the opening execution unit performs opening operation under the action of the electric pulse; the fixing unit is used for fixing the opening and closing device on the switch cabinet; the first power supply unit is used for supplying power to the microprocessor, the pulse generation unit, the opening execution unit and the fixing unit. The portable opening and closing device provided by the invention has the advantage that the opening and closing operation of the high-voltage switch cabinet can be controlled under the condition of no power failure by arranging the external actuator.
Description
Technical Field
The invention relates to the field of power grids, in particular to a portable opening and closing device and a method.
Background
The high-voltage switch cabinet is very important distribution equipment, and the safe and stable operation of the high-voltage switch cabinet has very important significance on the power supply reliability of a power grid. In consideration of personal safety and equipment safety during operation, national network companies clearly stipulate that the switching-off and switching-on operations of the high-voltage switch cabinet need to be remotely controlled through a dispatching center, and the live local operation is strictly forbidden. When the remote control operation has a fault, the existing method is to disconnect the superior switch and then perform the opening and closing operation on the spot. The method can cause the power failure range to be enlarged, the power failure time to be seriously increased, and a large amount of load loss is caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a portable opening and closing device and a method for realizing opening and closing operations without disconnecting a superior switch.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a portable opening and closing device comprises an actuator, wherein the actuator comprises a microprocessor, a pulse generating unit, an opening execution unit, a fixing unit and a first power supply unit, the pulse generating unit is connected with the microprocessor and the opening execution unit and used for receiving a pulse control signal of the microprocessor and generating an electric pulse to the opening execution unit, and the opening execution unit performs opening operation under the action of the electric pulse; the fixing unit is used for fixing the remote control switching-on/off device on the switch cabinet; the first power supply unit is used for supplying power to the microprocessor, the pulse generation unit, the opening execution unit and the fixing unit.
And the switching-on and switching-off circuit containing the optical coupling switch is connected with two ends of a five-prevention lock of the switch cabinet and a switching-on and switching-off outlet pressing plate, is used for five-prevention unlocking verification and switch position judgment, and utilizes the microprocessor to send a control signal to close an execution relay of the switching-on and switching-off circuit containing the optical coupling switch, so as to realize remote control switching-on and switching-off.
Further, the pulse generating unit is an energy storage capacitor.
Further, the capacity of the energy storage capacitor is 1500-2000uF.
Further, the fixing unit is an electromagnetic chuck, and the electromagnetic chuck is adsorbed on the switch cabinet.
The actuator further comprises a remote controller, the remote controller comprises a second wireless communication unit, an interaction unit and a second power supply unit, and the actuator further comprises a first wireless communication unit connected with the microprocessor; the interaction unit is connected with the second wireless communication unit and used for sending a brake separating control signal to the second wireless communication unit, and the second wireless communication unit sends the brake separating control signal to the microprocessor through the first wireless communication unit and then controls the brake separating execution unit to perform brake separating operation under the action of the electric pulse.
Furthermore, the actuator also comprises an identity authentication unit, wherein the identity authentication unit is connected with the microprocessor and is used for controlling the pulse generation unit to work after the identity information is detected to pass.
The invention also discloses a portable opening and closing method, which comprises the following steps:
initializing device parameters;
detecting whether a brake opening command is received or not, and if so, performing identity authentication;
and detecting whether the identity authentication passes, if so, controlling the pulse generating unit to generate an electric pulse to the opening execution unit, and performing opening operation by the opening execution unit under the action of the electric pulse.
Compared with the prior art, the invention has the beneficial effects
The portable opening and closing device provided by the invention has the advantage that the opening and closing operation of the high-voltage switch cabinet can be controlled under the condition of no power failure by arranging the external actuator.
Drawings
Fig. 1 is a block diagram of an actuator module of a portable opening and closing device according to the present invention.
Fig. 2 is a block diagram of a remote controller module of the portable switching on/off device of the invention.
Fig. 3 is a block diagram of a portable opening and closing device actuator module according to another embodiment of the invention.
FIG. 4 is a logic diagram of an actuator according to the present invention.
Fig. 5 is a block diagram of a portable opening and closing device actuator module according to another embodiment of the invention.
Fig. 6 is a flow chart of the portable opening and closing method of the invention.
Fig. 7 is a flowchart illustrating a portable opening and closing method according to an embodiment of the present invention.
Fig. 8 is a diagram of emergency opening wiring according to the present invention.
Fig. 9 is an external wiring diagram of the remote control opening and closing switch of the invention.
Fig. 10 is a schematic diagram illustrating the detection of switch position using an opto-coupler selection loop.
Fig. 11 is a schematic diagram of the remote control switching on and off operation.
Fig. 12 is a flowchart illustrating a portable opening and closing method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Fig. 1 is a block diagram of an actuator module of a portable opening/closing device of the present invention, and the actuator module includes an actuator 1, where the actuator 1 includes a microprocessor 11, a pulse generation unit 12, an opening execution unit 13, a fixing unit 14, and a first power supply unit 15, the pulse generation unit 12 is connected to the microprocessor 11 and the opening execution unit 13, and is configured to receive a pulse control signal from the microprocessor 11, generate an electric pulse to the opening execution unit 13, and the opening execution unit 13 performs an opening operation under the action of the electric pulse; the fixing unit 14 is used for fixing the remote control switching-on and switching-off device on the switch cabinet; the first power supply unit 15 is configured to supply power to the microprocessor 11, the pulse generation unit 12, the opening execution unit 13, and the fixing unit 14.
The actuator is electrically connected with a high-voltage switch cabinet, the microprocessor is a 16-bit PLC (programmable logic controller) module with 8 input and 8 output, and in actual connection, ports 1-4 of the input end and the output end of the PLC module are connected with a switch cabinet opening and closing pressing plate to respectively acquire switch position signals and carry out remote control opening and closing operation.
The portable opening and closing device provided by the invention has the advantage that the opening and closing operation of the high-voltage switch cabinet can be controlled under the condition of no power failure by arranging the external actuator.
Specifically, the pulse generating unit is an energy storage capacitor. The energy storage capacitor carries out rapid discharge operation when point pulse needs to be generated through pre-storing the capacitor, so that a high-voltage pulse is generated, and then the opening execution unit is controlled to complete opening action.
Preferably, the capacity of the energy storage capacitor is 1500-2000uF.
Specifically, referring to fig. 4, the fixing unit is an electromagnetic chuck, the electromagnetic chuck is adsorbed on the switch cabinet, and the emergency opening device is mechanically connected with the electromagnetic chuck and fixed on an emergency opening button of the switch cabinet. The energy storage capacitor stores energy and is electrically connected with an electromagnet of the emergency brake-separating device, and the energy is released after an emergency brake-separating and closing command is received to generate a high-voltage pulse to control the brake-separating execution unit to complete brake-separating action.
Specifically, referring to fig. 2 and fig. 3, the system further includes a remote controller 2, the remote controller 2 includes a second wireless communication unit 21, an interaction unit 22, and a second power supply unit 23, and the actuator further includes a first wireless communication unit 16 connected to the microprocessor 11; the interaction unit 22 is connected to the second wireless communication unit 21 and configured to send a switching-off control signal to the second wireless communication unit 21, and the second wireless communication unit 21 sends the switching-off control signal to the microprocessor 11 through the first wireless communication unit 16, so as to control the switching-off execution unit 13 to perform a switching-off operation under the action of the electric pulse. The first wireless communication unit and the second wireless communication unit are 433MHz wireless communication modules with the function of wireless to RS485 serial communication.
Specifically, referring to fig. 5, the actuator further includes an identity verification unit 17, where the identity verification unit 17 is connected to the microprocessor 11, and is used for controlling the pulse generation unit to operate by the microprocessor 11 after the detected identity information passes. The identity authentication unit can adopt authentication modes such as password authentication, fingerprint identification and the like, and the specific authentication modes are all in the prior art and are not described in detail herein.
Example 1:
the present embodiment provides the following processing modes:
if the remote control fails due to the fault of the operating loop, namely the fault is caused by an operating system, the actuating device is fixed on an emergency brake-separating button by utilizing the electromagnetic chuck. An operator sends a capacitor charging command and inputs a password to switch on a capacitor charging loop to charge the capacitor. And then, the operator sends an emergency brake-off command again within a specified time, the capacitor generates high-voltage pulses to control the actuating device to act, the emergency brake-off operation is carried out, and the capacitor is discharged after the action is finished. If the emergency opening command cannot be received within the specified time, the capacitor does not generate high-voltage pulse and directly discharges, and the specific time can be set according to the field condition.
If the remote control fails due to the fault of the remote control loop, namely the fault is caused by a remote control end, the execution system is connected to a switching-on/off pressing plate of the switch cabinet to detect the position of the switch and prepare for switching-on/off of the switch. And the wireless communication module of the execution system is used for uploading the switch position signal to the handheld system and displaying the switch position signal on the display screen. An operator sends a switching-on/off selection command to the execution system by using the handheld system and inputs a password to close the remote control outlet relay and open a positive power supply of the remote control switching-on/off. And then, the operator sends a brake opening (closing) command to the PLC again within the specified time so as to close the remote control positive electricity to open the relay and control the switch action. After the action is finished, the remote control outlet relay and the remote control positive electricity opening relay are reset. If the opening (closing) command is not sent within the specified time, the switch does not act, and the remote control outlet relay and the remote control positive electricity opening relay are reset.
The invention also discloses a portable opening and closing method, which comprises the following steps of:
initializing device parameters;
detecting whether a brake opening command is received or not, and if so, performing identity authentication;
and detecting whether the identity authentication passes, if so, controlling the pulse generating unit to generate an electric pulse to the opening execution unit, and carrying out opening operation by the opening execution unit under the action of the electric pulse.
In a specific embodiment, when the emergency brake-off is realized, the remote controller is used for remotely controlling personnel outdoors, and comprises a 4.3-inch TW programmable touch screen, a 433MHz wireless communication module with a wireless-to-RS 485 serial port communication function and a built-in polymer lithium battery. And connecting the 4.3-inch TW programmable touch screen with a wireless communication module of the handheld system to carry out serial communication. An operator operates the touch screen, the wireless communication module of the remote controller is used for communicating with the wireless communication module of the actuator, and the built-in polymer lithium battery is used for providing 24V direct current voltage for the handheld system. The logic diagram of the handheld system is shown in figure 2.
The actuator is electrically connected with the switch cabinet and comprises a 16-bit PLC (programmable logic controller) module with 8 input and 8 output, a 433MHz wireless communication module with a function of converting wireless communication into RS485 serial communication, a built-in polymer lithium battery, an energy storage capacitor, an electromagnetic chuck and an emergency opening executing device. The built-in polymer lithium battery provides 24V direct current voltage for the execution system. Referring to fig. 4, ports 5 and 6 of the output end of the plc module are connected to the custom coil, and ports 7 and 8 are respectively connected to the capacitor and the suction cup through the dc power supply. . The wireless communication module is communicated with the remote controller and the PLC module. The electromagnetic chuck is adsorbed on the switch cabinet, and the emergency brake-separating device is mechanically connected with the electromagnetic chuck and fixed on an emergency brake-separating button of the switch cabinet. The energy storage capacitor stores energy and is electrically connected with an electromagnet of the emergency brake-separating device, and the energy is released after the emergency brake-separating command is received to generate a high-voltage pulse to control the emergency brake-separating device to complete the brake-separating action. The logic diagram of the execution system is shown in figure 3. Referring to fig. 7, an emergency opening actuator is sucked on an emergency opening hole of a switch cabinet, the 1 st core wire and the 2 nd core wire of a special control wire (4 core) are connected into the emergency opening wiring hole of an execution system, and the 3 rd core wire and the 4 th core wire are connected into the electromagnetic chuck wiring hole of the execution system.
In one embodiment, referring to fig. 8, the emergency opening procedure is as follows:
s11, initializing device parameters;
s12, judging whether a capacitor charging command is received, if so, executing a step S13, otherwise, executing a step S12;
s13, judging whether the identity identification is correct or not, if so, executing a step S14, and if not, executing the step S13;
s14, charging the capacitor;
and S15, judging whether a brake-off execution command is received within preset time, if so, performing brake-off operation and discharging the capacitor, and if not, directly discharging the capacitor.
Example 2:
the invention also provides a remote control switching-on and switching-off scheme, which comprises a switching-on and switching-off loop containing an optical coupling switch, wherein the switching-on and switching-off loop containing the optical coupling switch is connected with two ends of a five-prevention lock of a switch cabinet and a switching-on and switching-off outlet pressing plate, is used for five-prevention unlocking verification and switch position judgment, and utilizes the microprocessor to send a control signal to close an execution relay of the switching-on and switching-off loop containing the optical coupling switch, so that the remote control switching-on and switching-off is realized. Referring to fig. 9, one end of a dedicated control line 91 of the operation loop is connected to the execution end, and the other end is clamped at two ends (non-polarity) of the five-prevention electric lock; 92, one end of the pressure plate is connected with an opening pressure plate interface of the instrument, and the other end of the pressure plate is clamped on a tripping outlet pressure plate of the switch cabinet; and 93 one end of the device is connected with a 'closing pressure plate' interface, and the other end of the device is clamped on a reclosing outlet pressure plate of the switch cabinet (if reclosing is not switched on, a pile head on the reclosing pressure plate is switched on). The closing operation can be only connected with a reclosing outlet pressure plate, and the opening operation can be only connected with a tripping outlet pressure plate.
After the wiring is completed, the switch position is judged by using the optical coupling selection loop positioned in the execution end, and the reference is made to fig. 10. Under the condition that one end of the five-prevention lock is positively charged, if the opening brake pressure plate is negatively charged, a loop where the optocoupler 2 or 4 is located is conducted, the switch is indicated to be in the closed position at the moment, and a signal is transmitted to the PLC by utilizing the optocoupler switch 2 or 4; if the closing pressure plate is negatively charged, a loop where the optocoupler 1 or 3 is located is conducted, the switch is located at a separating position at the moment, and the optocoupler switch 1 or 3 is used for transmitting a signal to the input end of the PLC.
After the switch position is judged, referring to fig. 11, fig. 11 shows a remote control switching-on/off execution control loop, and the handheld system sends a switching-on/off command through a wireless communication phase PLC and sends an execution signal through the PLC to control the relay to operate. If the switching-off operation is required, the PLC sends out an instruction to close the five-prevention relay 1, the five-prevention relay 2, the switching-off relay 1 and the switching-off relay 2, and positive voltage of the five-prevention lock is introduced into the switching-off pressing plate, so that the switching-off operation is completed; if the switch-on operation is required, the PLC sends out an instruction to close the five-prevention relay 1, the five-prevention relay 2, the switch-on relay 1 and the switch-on relay 2, and positive voltage of the five-prevention lock is introduced into the switch-on pressure plate, so that the switch-on operation is completed, namely the switch-on operation is controlled by the PLC output end 1-4.
In a specific embodiment, the remote controller is used for remote control of personnel outdoors and comprises a 4.3-inch TW programmable touch screen, a 433MHz wireless communication module with a wireless-to-RS 485 serial port communication function and a built-in polymer lithium battery. And connecting the 4.3-inch TW programmable touch screen with a wireless communication module of the handheld system to carry out serial communication. An operator operates the touch screen, the wireless communication module of the remote controller is used for communicating with the wireless communication module of the actuator, and the built-in polymer lithium battery is used for providing 24V direct current voltage for the handheld system. The logic diagram of the handheld system is shown in figure 2.
The actuator is electrically connected with the switch cabinet and comprises a 16-bit PLC (programmable logic controller) module with 8 input and 8 output, a 433MHz wireless communication module with a wireless-to-RS 485 serial port communication function and a built-in polymer lithium battery. The built-in polymer lithium battery provides 24V direct current voltage for the execution system. A port 1 at the input end of the PLC module receives signals sent by the optocoupler switches 1 and 3, and collects and judges whether the switches are positioned in the branch positions; and the No. 2 input end receives signals sent by the optical coupling switches 2 and 4, and collects and judges whether the switches are in the closed position. And a port 1-4 of the PLC output end is connected with a five-prevention lock to carry out remote control opening and closing operation.
In one embodiment, referring to fig. 12, the remote opening and closing process is as follows:
s21, initializing device parameters;
s22, collecting switch position data, and transmitting and displaying the switch position data;
s23, judging whether a brake separating selection command is received, if so, executing a step S24, otherwise, executing a step S27;
s24, judging whether the identity identification is correct or not, if so, executing a step S25, and if not, executing a step S22;
s25, opening a remote control opening positive power supply;
s26, judging whether a brake-separating execution command is received within preset time, if so, carrying out brake-separating operation, and resetting the remote control outlet relay and the remote control positive electricity opening relay, and if not, directly resetting the remote control outlet relay and the remote control positive electricity opening relay;
s27, judging whether a closing selection command is received, if so, executing a step S28, and if not, executing a step S22;
s28, judging whether the identity identification is correct or not, if so, executing a step S29, and if not, executing a step S22;
s29, opening a remote control switch-on positive power supply;
and S30, judging whether a closing execution command is received within preset time, if so, carrying out closing operation, and resetting the remote control exit relay and the remote control positive electricity opening relay, otherwise, directly resetting the remote control exit relay and the remote control positive electricity opening relay.
While the present invention has been described in detail with reference to the embodiments, the present invention is not limited to the above embodiments, and various modifications or alterations can be made by those skilled in the art without departing from the spirit and scope of the claims of the present application.
Claims (7)
1. A portable opening and closing device is characterized by comprising an actuator, wherein the actuator comprises a microprocessor, a pulse generating unit, an opening execution unit, a fixing unit and a first power supply unit, the pulse generating unit is connected with the microprocessor and the opening execution unit and used for receiving a pulse control signal of the microprocessor and generating an electric pulse to the opening execution unit, and the opening execution unit performs opening operation under the action of the electric pulse; the fixing unit is used for fixing the opening and closing device on the switch cabinet; the first power supply unit is used for supplying power to the microprocessor, the pulse generation unit, the opening execution unit and the fixing unit; the fixed unit comprises an electromagnetic chuck, the opening execution unit comprises an emergency opening device, the electromagnetic chuck is adsorbed on the switch cabinet, the emergency opening device is mechanically connected with the electromagnetic chuck, and the emergency opening device is fixed on an emergency opening button of the switch cabinet.
2. The portable divide-shut brake device according to claim 1, further comprising a divide-shut brake circuit including an opto-coupler switch, the divide-shut brake circuit including the opto-coupler switch being connected to the five-prevention lock both ends and the divide-shut brake outlet pressing plate of the switch cabinet for five-prevention unlocking verification and switch position judgment, and utilizing the microprocessor to send a control signal to close an execution relay of the divide-shut brake circuit including the opto-coupler switch, thereby realizing remote control of the divide-shut brake.
3. The portable divide-shut brake device according to claim 1, wherein the pulse generating unit is an energy storage capacitor.
4. A portable divide-shut brake device according to claim 3, wherein the capacity of the energy storage capacitor is 1500-2000uF.
5. The portable divide-shut brake device according to claim 1, further comprising a remote controller, wherein the remote controller comprises a second wireless communication unit, an interaction unit, a second power supply unit, and the actuator further comprises a first wireless communication unit connected to the microprocessor; the interaction unit is connected with the second wireless communication unit and used for sending a switching-off control signal to the second wireless communication unit, and the second wireless communication unit sends the switching-off control signal to the microprocessor through the first wireless communication unit and then controls the switching-off execution unit to perform switching-off operation under the action of the electric pulse.
6. The portable divide-shut brake device according to any one of claims 1-5, wherein the actuator further comprises an authentication unit, and the authentication unit is connected to the microprocessor and is configured to control the pulse generation unit to operate when the detected identity information passes.
7. A portable switching-on and switching-off method is applied to the device of claim 6, and is characterized by comprising the following steps:
initializing device parameters;
detecting whether a brake opening command is received or not, and if so, performing identity authentication;
and detecting whether the identity authentication passes, if so, controlling the pulse generating unit to generate an electric pulse to the opening execution unit, and carrying out opening operation by the opening execution unit under the action of the electric pulse.
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| CN107144756A (en) * | 2017-06-29 | 2017-09-08 | 东莞市广安电气检测中心有限公司 | Switch cubicle test device |
| CN109995142A (en) * | 2019-04-23 | 2019-07-09 | 四川华宇电力有限公司 | It is remotely controlled switching off/on device, system and method |
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