CN115765206A - Switch cabinet one-key sequential control system - Google Patents
Switch cabinet one-key sequential control system Download PDFInfo
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- CN115765206A CN115765206A CN202211588847.7A CN202211588847A CN115765206A CN 115765206 A CN115765206 A CN 115765206A CN 202211588847 A CN202211588847 A CN 202211588847A CN 115765206 A CN115765206 A CN 115765206A
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Abstract
The invention relates to the technical field of power grid control, in particular to a switch cabinet one-key sequence control system and method. The system firstly obtains the input and output voltage values of each execution component before operation during simulated rehearsal, exercises the operation steps in advance to generate the rule of the voltage value change after each step of operation, and generates a control command according to the rule, wherein the one-key sequential control command comprises the voltage input and output in each period before execution, the action sequence of the execution components in the switch cabinet and the voltage change condition after each action is executed. The invention improves the switching operation efficiency and reduces the misoperation accident rate; the intelligent level of the power grid is improved; the equipment state is effectively and accurately judged.
Description
Technical Field
The invention relates to the technical field of power grid control, in particular to a switch cabinet one-key sequence control system and method.
Background
In recent years, the number of transformer substations which are put into use is increased year by year, the complexity of equipment operation in the transformer substations is increased day by day, and the workload of related operation and maintenance personnel is increased. The switching operation is an essential link in the power grid work and is mainly used for the overhaul of equipment, the treatment of accidents or faults and the adjustment of the system operation mode. The switching operation is a series of operations performed by correctly switching primary equipment such as a circuit breaker, a disconnecting switch and a grounding disconnecting link from one state to another state in a transformer substation so as to achieve the purposes of power transmission and power failure. The electric equipment has four states of maintenance, standby (hot standby and cold standby) and operation respectively, and the transformer substation has high voltage level, so that personal safety and equipment safety can be endangered once misoperation occurs, and even the electric power system can be collapsed. The traditional manual switching operation process is complicated, the misoperation probability is high, and personal and equipment safety accidents of the transformer substation caused by misoperation all year round all the country.
The intelligent substation one-key sequence control technology can automatically check the running state of equipment before running, and realize switching operation intellectualization according to the preset operation sequence requirement, thereby reducing the working intensity of operation and maintenance personnel and improving the state switching accuracy and running speed of the substation equipment. The switch cabinet with the one-key sequential control technology has profound and important significance for stable operation of the transformer substation.
The transformer substation is the most important central link in the process of electric energy transmission of a power grid, and the switching operation plays an important role in the operation process of the transformer substation. The traditional switching operation flow is generally that an upper-level scheduling center issues an operation instruction, received command numbers and switching operation steps are repeated in scheduling, switching operation starting time is scheduled after correctness is achieved, then operation and maintenance personnel of a transformer substation start to fill in operation tickets, signature and operation starting time are started after positive value is checked to be correct, then monitoring and operation personnel perform simulation preview step by step after confirming operation ticket content step in front of a simulation screen, normal operation on equipment is started after preview is achieved to an expected effect, a monitor repeatedly reads the ticket and executes related operations after the operator checks to be correct, then equipment state after operation is confirmed on site and is checked and corrected after corresponding operation steps, and only selection, correction return and execution of independent equipment can be achieved in the operation process. The traditional switching operation process of the transformer substation is complex and tedious, and a series of operation rules determine that the engineering quantity finished by the switching operation is in direct proportion to the number of the transformer substations, the duty intensity of operation and maintenance personnel and the number of electrical equipment in the traditional transformer substation.
In recent years, the number of substations in each place is increased under the condition of increasing electricity demand of residents, the number of power transformation operation and maintenance personnel is increased gradually, and the number of per-capita switching operation is doubled. The number of misoperation and error processing is correspondingly increased on the basis of the operation base, so that power accidents are continuously caused, and the personal safety of operation and maintenance personnel and the whole power grid of the power transformation system are threatened in many aspects.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a switch cabinet one-key sequence control system. The monitoring host computer of the invention is used for uniquely storing and managing the one-key sequence control operation order, receiving and executing the one-key sequence control instruction issued locally and remotely in real time, and has the functions of task calling, simulated rehearsal, instruction execution and operation recording. The one-key sequence control device of the switch cabinet has a data acquisition execution function, and the one-key sequence control instruction comprises a verification function, so that the voltage change after the execution step can be checked whether to meet the expectation or not every time the one-key sequence control device of the switch cabinet executes once, and the occurrence of a switching misoperation accident caused by equipment failure is avoided.
The technical scheme of the invention is as follows: the utility model provides a cubical switchboard key is in same direction as accuse system, includes a plurality of cubical switchboard key and is in same direction as accuse device and monitoring host computer, and monitoring host computer passes through the industrial network and is connected its characterized in that with cubical switchboard key in same direction as accuse device: the switch cabinet one-key sequence control device comprises a switch cabinet control system, a picture or video collector, a distance measuring device, an execution component and a voltage acquisition device, wherein the switch cabinet control system is respectively connected with the picture or video collector, the distance measuring device, the execution component and the voltage acquisition device; the picture or video collector is used for collecting video or picture data of the handcart in the switch cabinet and outputting the video or picture data to the switch cabinet control system; the voltage acquisition is to acquire all voltages input and output by the execution component; the monitoring host stores and manages a one-key sequence control operation order, and receives and executes a one-key sequence control instruction issued locally and remotely in real time, wherein the one-key sequence control instruction comprises functions of task calling, simulated rehearsal, instruction execution and operation recording; the system comprises a five-prevention integrated anti-error logic check module, a one-key sequence control module, a task scheduling module, a simulation rehearsal module and an instruction execution module, wherein the five-prevention integrated anti-error logic check module is used for performing anti-error check in the simulation rehearsal and instruction execution processes; the system firstly obtains input and output voltage values of each execution component before operation during simulated rehearsal, exercises operation steps in advance, generates a rule of voltage value change after operation of each step, and generates a control command according to the rule, wherein the one-key sequential control command comprises voltage input and output in each period before execution, an action sequence of the execution components in the switch cabinet and voltage change conditions after execution of each action.
According to a cubical switchboard key in proper order accuse system as above, its characterized in that: the simulation rehearsal also comprises a process of uploading and comparing collected data before the switch cabinet one-key sequence control device is started through communication, the switch cabinet control system and corresponding devices are ensured to be in good states before execution through data comparison, and the success rate of one-key sequence control is improved.
According to a cubical switchboard key in proper order control system as above, its characterized in that: the generation process of the operation ticket library comprises the following steps: firstly, a monitoring background operation equipment state definition tool generates real-time states of equipment such as operation, hot standby and cold standby according to communication information of a one-key sequence control device of a switch cabinet and displays the real-time states on a host screen, the real-time states are updated according to current conditions, then the monitoring background continuously operates the sequence control flow definition tool to generate sequence control tickets in a required format, task parameters such as execution confirmation conditions, error processing modes and the like of the sequence control tickets can be set according to the requirements of the current sequence control tasks, the sequence control tickets are stored according to standard requirements, a sequence control ticket reading function is provided, namely the sequence control tickets can be called on the screen according to specified source state target states, after the calling is successful, all operation item information of the tasks are displayed in an operation item list, operation conditions, target states and real-time updated execution component state information or input and output voltage information are displayed in the operation condition and target state list, after the operation tickets are successfully previewed, the operation tickets enter a waiting execution state, and a one-key sequence control instruction can be automatically issued or a one-key sequence control instruction is issued after manual review.
According to a cubical switchboard key in proper order accuse system as above, its characterized in that: the monitoring host is connected with the protocol converter through the concentrator, the protocol converter is connected with the Internet of things gateway and the Internet respectively, and the Internet of things gateway is connected with the cloud platform through wireless communication.
According to a cubical switchboard key in proper order accuse system as above, its characterized in that: the wireless communication protocol employs a cellular network.
According to a cubical switchboard key in proper order control system as above, its characterized in that: the executive component comprises an electric mechanism, a circuit breaker, an isolating switch disconnecting link, a microswitch, a handcart isolating switch or a grounding switch.
According to a cubical switchboard key in proper order accuse system as above, its characterized in that: the distance measuring device is an infrared distance measuring instrument or a laser distance measuring instrument or an ultrasonic distance measuring instrument.
According to a cubical switchboard key in proper order control system as above, its characterized in that: the switch cabinet control systems and the monitoring host are connected through an industrial internet.
The invention has the beneficial effects that: the switching operation efficiency is improved, and the misoperation accident rate is reduced; the intelligent level of the power grid is improved; the equipment state is effectively and accurately judged.
Drawings
Fig. 1 is a schematic diagram of the connection between a monitoring host and a switch cabinet one-key sequence control device according to the present invention.
FIG. 2 is a block diagram of the system of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1 and 2, the switch cabinet one-key sequence control system of the invention includes a plurality of switch cabinet one-key sequence control devices and a monitoring host, wherein the monitoring host is connected with the switch cabinet one-key sequence control devices through an industrial network, the monitoring host of the invention can be connected with a protocol converter through a concentrator, and the protocol converter is respectively connected with an internet of things gateway and the internet. The internet of things gateway is connected with the cloud platform through wireless communication, and the wireless communication protocol can adopt a common communication protocol, such as a cellular network. Therefore, the invention can issue control instructions through remote control or monitoring.
As shown in fig. 1, the monitoring host of the present invention uniquely stores and manages a one-key sequence control operation ticket, and receives and executes a one-key sequence control instruction issued locally and remotely in real time, including functions of task calling, simulated rehearsal, instruction execution, and operation recording. The anti-error check is carried out by using an integrated five-prevention anti-error logic check module in the simulation rehearsal and instruction execution processes, and the one-key sequence control module comprises an operation ticket library, task calling, simulation rehearsal and instruction execution and forms an operation record.
During simulated rehearsal, the system firstly obtains input and output voltage values of each execution component before operation, pre-exercises the operation steps, generates a rule of voltage value change after each step of operation, and generates a control command according to the rule, wherein the one-key sequential control command comprises voltage input and output in each period before execution, the action sequence of the execution components in the switch cabinet and the voltage change condition after each action is executed. The simulation rehearsal can also comprise a process of uploading and comparing collected data before the switch cabinet one-key sequence control device is started through communication, the switch cabinet control system and corresponding devices are ensured to be in good states before execution through data comparison, and the success rate of one-key sequence control is improved. And after the one-key sequence control instruction is successfully generated, issuing the instruction to execute, and sending the one-key sequence control instruction to the one-key sequence control device of the switch cabinet to be executed through the industrial bus.
The generation process of the operation ticket library can be as follows: firstly, a monitoring background running equipment state definition tool generates real-time states of running equipment, hot standby equipment, cold standby equipment and the like according to communication information of a one-key sequence control device of a switch cabinet and displays the real-time states on a host screen, the real-time states are updated according to current conditions, then the monitoring background continuously runs the sequence control flow definition tool to generate sequence control tickets in a required format, task parameters such as execution confirmation conditions, error processing modes and the like of the sequence control tickets can be set according to the requirements of the current sequence control tasks, the sequence control tickets are stored according to standard requirements, a sequence control ticket reading function is provided, namely the sequence control tickets can be called on the screen according to specified source state target states, after the sequence control is successfully called, all operation item information of the tasks is displayed in an operation item list, the operation conditions, the target states and the real-time updated execution component state information or input and output voltage information are displayed in the operation condition and target state list, so that manual checking can be carried out, if errors exist, field personnel analyze reasons of the failure and revise the operation ticket library. After the required operation ticket is successfully called, the monitoring host starts to rehearse the sequence control ticket, if the pre-execution condition, the confirmation condition or the five-prevention rule are not satisfied, the rehearse is stopped and the failure reason is prompted, and after the operation ticket is successfully rehearsed, the monitoring host enters a waiting execution state and can automatically issue a one-key sequence control instruction or issue a one-key sequence control instruction after manual review. Therefore, the intelligent level of a power grid is improved, and the switching operation can be completed within 10 minutes after the one-key sequence control instruction is issued under the condition that the running state of the equipment is good by adopting the system.
The switch cabinet one-key sequence control device collects data, reports the collected data to the monitoring host and executes a one-key sequence control instruction issued by the monitoring host. The one-key sequence control instruction comprises the states of all executive components and input and output voltages before execution and issuing, the states of all executive components and input and output voltages after each step of execution, and the states of all executive components and input and output voltages after final execution is finished. Therefore, when the switch cabinet one-key sequence control device executes the instruction, the state can be confirmed once the instruction is executed, the next instruction is executed after the operation of each step is finished, the problems existing in the execution process can be found in time in the instruction execution process, the rapid response is facilitated, and the serious accident caused by the accumulation of the errors in the previous steps can be avoided. Thereby promoting switching operation efficiency and reducing misoperation accident rate.
As shown in fig. 2, the switch cabinet one-key sequence control device of the invention comprises a switch cabinet control system, a picture or video collector, a distance measuring device, an execution component and a voltage acquisition, wherein the switch cabinet control system is respectively connected with the picture or video collector, the distance measuring device, the execution component and the voltage acquisition. The picture or video collector is used for collecting video or picture data of the handcart in the switch cabinet and outputting the video or picture data to the switch cabinet control system so as to provide video image data of the handcart position for sequence control operators.
The executive components of the invention comprise an electric mechanism, a circuit breaker, an isolating switch disconnecting link, a microswitch, a handcart isolating switch, a grounding switch and the like, and the executive components drive the executive mechanism to act, such as starting or closing, and the motor rotates forwards and backwards.
The distance measuring device can adopt an infrared distance meter, a laser distance meter or an ultrasonic distance meter and is used for measuring the distance of the distance change after the components are operated, for example, after a certain electric mechanism is operated, the position of a contact arm of a handcart is changed, and the distance measuring device can measure the distance change before and after the change.
The voltage acquisition of the invention is to acquire all the input and output voltages of the executive components, such as the input voltage of a breaker port and the output voltage of a breaker. The executive components (such as a circuit breaker, a handcart isolating switch and a grounding switch) of the invention run in the air for a long time, and are easy to generate the situations of oxidation abrasion and the like, so that the actual positions of the auxiliary contact of the primary equipment confirmed by remote signaling and remote measurement can not strictly correspond to the actual positions of the primary equipment, and the operation personnel still need to cooperate on site to confirm the initial situation and the target achievement situation of the corresponding equipment. The invention adopts the measurement of the input and output voltages of the execution components, can assist in judging the equipment state of the equipment and find the damage condition of the equipment in time.
The switch cabinet control systems and the monitoring host are connected through industrial internet, such as Modbus protocol, RS-232 protocol, RS-485 protocol, HART protocol and the like for communication.
The switch cabinet control system is a data acquisition execution system, can adopt control devices such as a logic controller, a single chip microcomputer and the like, and acquires data generated by an image or video acquisition device, a distance measuring device, an execution device and voltage acquisition or issues a starting or closing instruction after internal communication or IO (input/output) port. The switch cabinet control system issues an instruction according to the monitoring host to operate, so that the equipment state switching of the execution components is accurate and the running speed is high.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, but all changes that can be made by applying the principles of the present invention and performing non-inventive work on the basis of the principles shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a cubical switchboard key is in same direction as accuse system, includes a plurality of cubical switchboard key and is in same direction as accuse device and monitoring host computer, and monitoring host computer passes through the industrial network and is connected its characterized in that with cubical switchboard key in same direction as accuse device: the switch cabinet one-key sequence control device comprises a switch cabinet control system, a picture or video collector, a distance measuring device, an execution component and a voltage acquisition device, wherein the switch cabinet control system is respectively connected with the picture or video collector, the distance measuring device, the execution component and the voltage acquisition device; the picture or video collector is used for collecting video or picture data of the handcart in the switch cabinet and outputting the video or picture data to the switch cabinet control system; the voltage acquisition is to acquire all voltages input and output by the execution component; the monitoring host stores and manages a one-key sequence control operation order, and receives and executes a one-key sequence control instruction issued locally and remotely in real time, wherein the one-key sequence control instruction comprises functions of task calling, simulated rehearsal, instruction execution and operation recording; the system comprises a five-prevention integrated anti-error logic check module, a one-key sequence control module, a task scheduling module, a simulation rehearsal module and an instruction execution module, wherein the five-prevention integrated anti-error logic check module is used for performing anti-error check in the simulation rehearsal and instruction execution processes; the system firstly obtains input and output voltage values of each execution component before operation during simulated rehearsal, exercises operation steps in advance, generates a rule of voltage value change after operation of each step, and generates a control command according to the rule, wherein the one-key sequential control command comprises voltage input and output in each period before execution, an action sequence of the execution components in the switch cabinet and voltage change conditions after execution of each action.
2. The switch cabinet one-key sequence control system according to claim 1, characterized in that: the simulation rehearsal also comprises a process of uploading and comparing collected data before the switch cabinet one-key sequence control device is started through communication, the switch cabinet control system and corresponding devices are ensured to be in good states before execution through data comparison, and the success rate of one-key sequence control is improved.
3. The switch cabinet one-touch sequence control system according to claim 1, wherein: the generation process of the operation ticket library comprises the following steps: firstly, a monitoring background operation equipment state definition tool generates real-time states of equipment such as operation, hot standby and cold standby according to communication information of a one-key sequence control device of a switch cabinet and displays the real-time states on a host screen, the real-time states are updated according to current conditions, then the monitoring background continuously operates the sequence control flow definition tool to generate sequence control tickets in a required format, task parameters such as execution confirmation conditions, error processing modes and the like of the sequence control tickets can be set according to the requirements of the current sequence control tasks, the sequence control tickets are stored according to standard requirements, a sequence control ticket reading function is provided, namely the sequence control tickets can be called on the screen according to specified source state target states, after the calling is successful, all operation item information of the tasks are displayed in an operation item list, operation conditions, target states and real-time updated execution component state information or input and output voltage information are displayed in the operation condition and target state list, after the operation tickets are successfully previewed, the operation tickets enter a waiting execution state, and a one-key sequence control instruction can be automatically issued or a one-key sequence control instruction is issued after manual review.
4. The switch cabinet one-touch sequence control system according to claim 1, wherein: the monitoring host is connected with the protocol converter through the concentrator, the protocol converter is connected with the Internet of things gateway and the Internet respectively, and the Internet of things gateway is connected with the cloud platform through wireless communication.
5. A switch cabinet key sequence control system according to any one of claims 1 to 4, characterized in that: the wireless communication protocol employs a cellular network.
6. The switch cabinet one-key sequence control system according to any one of claims 1 to 4, characterized in that: the executive component comprises an electric mechanism, a circuit breaker, an isolating switch disconnecting link, a microswitch, a handcart isolating switch or a grounding switch.
7. The switch cabinet one-key sequence control system according to any one of claims 1 to 4, characterized in that: the distance measuring device is an infrared distance measuring instrument or a laser distance measuring instrument or an ultrasonic distance measuring instrument.
8. A switch cabinet key sequence control system according to any one of claims 1 to 4, characterized in that: the switch cabinet control systems and the monitoring host are connected through industrial internet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211588847.7A CN115765206A (en) | 2022-12-12 | 2022-12-12 | Switch cabinet one-key sequential control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211588847.7A CN115765206A (en) | 2022-12-12 | 2022-12-12 | Switch cabinet one-key sequential control system |
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| CN202211588847.7A Pending CN115765206A (en) | 2022-12-12 | 2022-12-12 | Switch cabinet one-key sequential control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116760192A (en) * | 2023-08-16 | 2023-09-15 | 川开电气有限公司 | One-key sequential control method of switch cabinet |
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- 2022-12-12 CN CN202211588847.7A patent/CN115765206A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116760192A (en) * | 2023-08-16 | 2023-09-15 | 川开电气有限公司 | One-key sequential control method of switch cabinet |
| CN116760192B (en) * | 2023-08-16 | 2023-10-20 | 川开电气有限公司 | One-key sequential control method of switch cabinet |
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