CN116760192B - One-key sequential control method of switch cabinet - Google Patents
One-key sequential control method of switch cabinet Download PDFInfo
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- CN116760192B CN116760192B CN202311027840.2A CN202311027840A CN116760192B CN 116760192 B CN116760192 B CN 116760192B CN 202311027840 A CN202311027840 A CN 202311027840A CN 116760192 B CN116760192 B CN 116760192B
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- 238000002955 isolation Methods 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 24
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000008092 positive effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 abstract 2
- 230000033001 locomotion Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B15/00—Supervisory desks or panels for centralised control or display
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00001—Circuit 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 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00006—Circuit 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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit 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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00006—Circuit 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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit 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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a one-key sequential control method of a switch cabinet, which belongs to the technical field of switch cabinet control and comprises the following steps: acquiring a switch cabinet to be controlled in sequence, wherein the switch cabinet to be controlled in sequence has a node state; establishing a control model of the switch cabinet to be controlled in sequence in each node state; and carrying out one-key sequential control on the switch cabinet to be sequential controlled based on the control model, and sending a signal of successfully executing the sequential control action instruction to the touch screen. The invention is suitable for sequentially controlling switching operations of the outgoing line type switch cabinet, the incoming line type switch cabinet and the isolation type switch cabinet, and solves the problems of complicated and inaccurate switching operation flow and low operation efficiency of the existing switch cabinet by dividing node states of working nodes of the switch cabinet and controlling action instructions of different node states of the switch cabinet to be controlled in sequence in a positive sequence or a negative sequence through a control model.
Description
Technical Field
The invention belongs to the technical field of switch cabinet control, and particularly relates to a one-key sequential control method of a switch cabinet.
Background
With the rapid development of the incoming call network construction in recent years, the number of power network substations is increased, and the operation and maintenance switching operation task of the power transformation is increasingly heavy.
At present, switching operation basically adopts a manual mode, serial works such as ticket writing, auditing, simulation, five-prevention verification and the like are required to be completed before and after operation, the flow is complex, the operation efficiency is very low, and safety risks such as internal arc and the like caused by manual misoperation exist; secondly, in the prior art, the indication of two non-identical principles of a ' position remote signaling criterion and a ' remote sensing criterion ' is correspondingly changed, and whether equipment is operated in place is judged, so that the switch cabinet is subjected to one-key sequential control according to a judging result. However, no matter the manual mode or the prior art, the control device can not be matched according to the actual working condition and the actual working requirement of the switch cabinet, so that simple, accurate and efficient sequential control of the switching operation of the switch cabinet is realized.
Disclosure of Invention
Aiming at the defects in the prior art, the one-key sequential control method of the switch cabinet provided by the invention is used for carrying out one-key sequential control on the switch cabinet to be sequentially controlled through the control model, and solves the problems of complicated and inaccurate switching operation flow and low operation efficiency of the existing switch cabinet.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the invention provides a one-key sequential control method of a switch cabinet, which comprises the following steps:
s1, acquiring a switch cabinet to be controlled in sequence, wherein the switch cabinet to be controlled in sequence has a node state;
s2, establishing a control model of the switch cabinet to be controlled in sequence in each node state;
and S3, carrying out one-key sequential control on the switch cabinet to be sequential controlled based on the control model, and sending a signal for successfully executing the sequential control action instruction to the touch screen.
The beneficial effects of the invention are as follows: the one-key sequential control method of the switch cabinet is suitable for sequentially controlling switching operations of the outgoing line switch cabinet, the incoming line switch cabinet and the isolation switch cabinet, and avoids complicated control of switching operations of the existing switch cabinet by dividing the node states of the working nodes of the switch cabinet; according to the invention, the control model is respectively built for the to-be-controlled switch cabinet model in each node state, and the forward sequence or reverse sequence action instruction control is carried out on different node states of the to-be-controlled switch cabinet through the control model, so that the one-key sequential control of the working nodes of the switch cabinet is simply and accurately realized.
Further, the switch cabinet to be controlled in sequence is any one of an outgoing line type switch cabinet model, an incoming line type switch cabinet model and an isolation type switch cabinet model;
the outgoing line type switch cabinet model is provided with a circuit breaker, a handcart and a ground knife; the node states of the outgoing line type switch cabinet model comprise a working node state, a hot standby node state, a cold standby node state and an overhaul node state;
the incoming line type switch cabinet model is provided with a circuit breaker and a handcart; the node states of the incoming line type switch cabinet model comprise a working node state, a hot standby node state and a cold standby node state;
the isolating switch cabinet model is only provided with a handcart; the node states of the isolation type switch cabinet model comprise hot standby node states and cold standby node states.
The beneficial effects of adopting the further scheme are as follows: the method comprises the steps of determining node states of an outgoing line type switch cabinet, an incoming line type switch cabinet and an isolation type switch cabinet which can execute switching operation of the switch cabinet, and providing the type of the switch cabinet and the node states in a corresponding working range for one-key sequential control of a control model according to the node states of the switch cabinets to be controlled sequentially.
Further, the control model includes:
the node index number unit is used for setting the node index numbers corresponding to the working node state, the hot standby node state, the cold standby node state and the maintenance node state of the switch cabinet to be controlled in sequence to 0, 1, 2 and 3 respectively;
the current node state unit is used for obtaining the current node state of the switch cabinet to be controlled in sequence according to the communication point table of the secondary panel of the switch cabinet and the operation state Boolean character string obtained based on the modbus-rtu protocol;
the action allowing unit is used for obtaining a positive sequence action allowing result and/or a reverse sequence action allowing result of the switch cabinet to be controlled in sequence according to the communication point table of the secondary panel of the switch cabinet, the operation state Boolean character string obtained based on the modbus-rtu protocol and the action overtime condition;
the control device comprises an action instruction unit and a control unit, wherein the action instruction unit is used for issuing a sequence control action instruction based on a modus-rtu protocol by using a control device, and the sequence control action instruction comprises a positive sequence control action instruction and a reverse sequence control action instruction;
and the action success signal unit is used for sending a signal for successfully executing the sequence control action instruction to the touch screen based on the MQTT protocol after the switch cabinet to be controlled in sequence executes the sequence control action instruction.
The beneficial effects of adopting the further scheme are as follows: the control model provides a basis for sequential control for each node state of the switch cabinet to be controlled in sequence, can determine the current node state, a positive sequence action permission result and/or a reverse sequence action permission result of the switch cabinet to be controlled in sequence based on the operation state Boolean character string acquired by the modbus-rtu protocol, acquires a node index number corresponding to the node state, executes a sequence control action instruction based on the node index number, the positive sequence action permission result and/or the reverse sequence action permission result, and feeds back the successful execution result of the sequence control action instruction to the touch screen.
Further, the method for obtaining the current node state of the switch cabinet to be controlled sequentially according to the communication point table of the secondary panel of the switch cabinet and the operation state boolean character string obtained based on the modbus-rtu protocol comprises the following steps:
a1, acquiring an operation state Boolean character string of a switch cabinet to be controlled in sequence based on a modbus-rtu protocol;
a2, analyzing the operation state Boolean character string by using a communication point table of a secondary panel of the switch cabinet to obtain the operation states of the circuit breaker, the ground knife and the handcart;
a3, aiming at the condition that the running state of the circuit breaker is not in the on-position, the running state of the ground knife is not in the on-position, and the running state of the handcart is not in the test position, the current node state of the switch cabinet to be controlled in sequence is a working node state;
a4, aiming at the condition that the running state of the circuit breaker is in the separated position and is not in the combined position, the running state of the ground knife is in the separated position and is not in the combined position, and the running state of the handcart is in the working position and is not in the test position, the current node state of the switch cabinet to be controlled in sequence is a hot standby node state;
a5, aiming at the condition that the running state of the circuit breaker is in the separated position and is not in the combined position, the running state of the ground knife is in the separated position and is not in the combined position, and the running state of the handcart is in the test position and is not in the working position, the current node state of the switch cabinet to be controlled in sequence is a cold standby node state;
a6, aiming at the condition that the running state of the circuit breaker is not in the on-position state, the running state of the ground knife is not in the on-position state, and the running state of the handcart is not in the working position, the current node state of the switch cabinet to be controlled in sequence is an overhaul node state.
The beneficial effects of adopting the further scheme are as follows: the method comprises the steps of analyzing the operation state Boolean character string acquired based on the modbus-rtu protocol according to the communication point table of the secondary panel of the switch cabinet, so that the specific method for identifying the current node state of the switch cabinet model to be controlled in sequence is provided, and a foundation is provided for determining an index number corresponding to the current node state by utilizing a control model in the sequential control process of the switch cabinet, performing action permission confirmation and executing sequential control action instructions.
Further, the method for obtaining the positive sequence action permission result and/or the reverse sequence action permission result of the switch cabinet to be controlled sequentially according to the communication point table of the secondary panel of the switch cabinet, the operation state boolean character string acquired based on the modbus-rtu protocol and the action timeout condition comprises the following steps:
b1, acquiring an operation state Boolean character string based on a modbus-rtu protocol;
b2, analyzing the operation state Boolean character string by using a communication point table of a secondary panel of the switch cabinet to obtain the operation states of the circuit breaker, the ground knife and the handcart, the position state of the control device, the action overtime condition and the comprehensive protection fault state;
b3, aiming at the conditions that the operation state of the circuit breaker is not in the on-position, the operation state of the handcart is not in the test position, the ground knife state is not in the on-position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the circuit breaker is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is the circuit breaker opening action permission, and the reverse sequence action permission result is null;
b4, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the working position and is not in the test position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the handcart is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the handcart is permitted to withdraw;
b5, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the working position and is not in the test position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the reverse order action is not overtime, and the comprehensive protection fault state is that the circuit breaker is not faulty, the reverse order action permission result of the switch cabinet to be controlled is that the circuit breaker is permitted to be closed;
b6, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the test position and is not in the working position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the ground knife is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the ground knife is permitted to be closed;
b7, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the test position and is not in the working position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the handcart is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the handcart is allowed to enter the handcart;
and B8, aiming at the condition that the running state of the circuit breaker is not in the on-position state, the running state of the handcart is not in the working position of the test position, the ground knife state is not in the on-position state, the position state of the control device is far away, the action overtime condition is that the reverse order action is not overtime, and the comprehensive protection fault state is that the ground knife is not faulty, the positive action permission result of the switch cabinet to be controlled in sequence is null, and the reverse order action permission result is that the ground knife is in brake opening action permission.
The beneficial effects of adopting the further scheme are as follows: the method has the advantages that the single-step positive sequence action or the single-step reverse sequence action is allowed to be executed according to the switch cabinet model with sequential control under the condition that the position state of the operating device is far away and the fully-guaranteed fault object is free of faults, so that misoperation and potential safety hazards caused by remote operation when the operating device is on site are avoided, control authority is independently provided for distinction between remote one-key sequential control and on-site control through a switch cabinet control panel, and control of different personnel is isolated.
Further, the method for issuing the sequence control action instruction based on the modus-rtu protocol by using the control device comprises the following steps:
setting the position state of an operation device of a switch cabinet to be controlled in sequence to be far;
c2, acquiring the current node state and the target node state of the switch cabinet to be controlled in sequence;
c3, respectively obtaining a node index number corresponding to the current node state and a node index number corresponding to the target node state according to the current node state and the target node state of the switch cabinet to be controlled in sequence;
c4, judging whether the node index number corresponding to the current node state is smaller than the node index number corresponding to the target node state, if so, entering a step C5, otherwise, entering a step C6;
c5, constructing a positive sequence control action instruction from the node index number corresponding to the current node state to the node index number corresponding to the target node state, and issuing the positive sequence control action instruction based on a modus-rtu protocol;
and C6, constructing an inverse sequence control action instruction from the node index number corresponding to the current node state to the node index number corresponding to the target node state, and issuing the inverse sequence control action instruction by a modus-rtu protocol.
The beneficial effects of adopting the further scheme are as follows: based on the current node state and the target node state of the switch cabinet to be controlled in sequence, the forward sequence control action instruction or the reverse sequence control action instruction can be simply and conveniently determined according to the comparison of the node state index numbers, and the sequential control of the switch cabinet through the node states is realized.
Further, the positive sequence control action instruction comprises a plurality of instructions for executing single-step positive sequence actions; the reverse sequence control action instruction comprises a plurality of instructions for executing single-step reverse sequence actions;
the single step positive sequence action includes: the breaker is opened, and then the node state of the switch cabinet to be controlled in sequence enters a hot standby node state from a working node state; the handcart is moved back, and the node state of the switch cabinet to be controlled in sequence enters the cold standby node state from the hot standby node state; the earth knife is switched on, and the node state of the switch cabinet to be controlled in sequence enters an overhaul state from the cold standby node state;
the single-step reverse sequence action comprises: the ground knife is opened, and the node state of the switch cabinet to be controlled in sequence enters a cold standby node state from an overhaul node state; the handcart enters the handcart, and the node state of the switch cabinet to be controlled in sequence enters the hot standby node state from the cold standby node state; and when the circuit breaker is switched on, the node state of the switch cabinet to be controlled in sequence is changed from the hot standby node state to the working node state.
The beneficial effects of adopting the further scheme are as follows: the single-step positive sequence motion or the single-step reverse sequence motion are respectively included in the positive sequence control motion and the reverse sequence control motion, when the sequence control motion instruction is executed, the single-step positive sequence motion or the single-step reverse sequence motion is executed one by one, so that the gradual node state change of the switch cabinet model to be forward-connected is realized, at most, 3 single-step positive sequence motions or 3 single-step reverse sequence motions are executed, at least, only 1 single-step positive sequence motion or 1 single-step reverse sequence motion is executed, and the sequencing control of the switch cabinet can be accurately and conveniently realized.
Further, the step S3 includes the following steps:
s31, based on an MQTT protocol, a touch screen is utilized to send a sequential control command comprising the state of a target node to a gateway with a control model;
s32, receiving a sequential control command by using a gateway with a control model, and activating the control model;
s33, acquiring the current node state of the switch cabinet model with sequential control by using the current node state unit;
s34, obtaining node index numbers corresponding to the current node state and the target node state by using a node index number unit;
s35, obtaining an operation state Boolean character string based on a modbus-rtu protocol and the current node state of a switch cabinet to be controlled in sequence;
s36, obtaining a positive sequence action permission result and/or a reverse sequence action permission result of the switch cabinet to be controlled sequentially by utilizing the action permission unit according to a communication point table, an operation state Boolean character string and an action overtime condition of the secondary panel of the switch cabinet;
s37, based on node index numbers corresponding to the current node state and the target node state, a positive sequence action permission result and/or a negative sequence action permission result of the switch cabinet to be controlled in sequence, issuing a sequence control action instruction by utilizing an action instruction unit;
s38, executing a sequence control action instruction by using a switch cabinet to be controlled in sequence until the execution of the positive sequence control action instruction or the reverse sequence control action instruction is completed, and entering S39;
and S39, sending a signal for successfully executing the sequence control action instruction to the touch screen based on the MQTT protocol.
The beneficial effects of adopting the further scheme are as follows: according to the invention, based on the MQTT protocol, the sequential control command which only needs to determine the state of the target node is transmitted to the gateway through the touch screen, so that the remote one-key and sequential control of the switching operation of the switch cabinet is realized, and the flow for controlling the switching operation of the switch cabinet is simple, convenient and efficient.
Other advantages that are also present with respect to the present invention will be more detailed in the following examples.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a one-key sequential control method of a switch cabinet according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a single-step positive sequence operation and a single-step negative sequence operation according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
As shown in fig. 1, in one embodiment of the present invention, the present invention provides a one-key sequential control method of a switch cabinet, including the following steps:
s1, acquiring a switch cabinet to be controlled in sequence, wherein the switch cabinet to be controlled in sequence has a node state;
the switch cabinet to be controlled in sequence is any one of an outgoing line type switch cabinet model, an incoming line type switch cabinet model and an isolation type switch cabinet model;
the outgoing line type switch cabinet model is provided with a circuit breaker, a handcart and a ground knife; the node states of the outgoing line type switch cabinet model comprise a working node state, a hot standby node state, a cold standby node state and an overhaul node state;
the incoming line type switch cabinet model is provided with a circuit breaker and a handcart; the node states of the incoming line type switch cabinet model comprise a working node state, a hot standby node state and a cold standby node state;
the isolating switch cabinet model is only provided with a handcart; the node states of the isolation type switch cabinet model comprise hot standby node states and cold standby node states.
S2, establishing a control model of the switch cabinet to be controlled in sequence in each node state;
the control model includes:
the node index number unit is used for setting the node index numbers corresponding to the working node state, the hot standby node state, the cold standby node state and the maintenance node state of the switch cabinet to be controlled in sequence to 0, 1, 2 and 3 respectively;
the current node state unit is used for obtaining the current node state of the switch cabinet to be controlled in sequence according to the communication point table of the secondary panel of the switch cabinet and the operation state Boolean character string obtained based on the modbus-rtu protocol;
the method for obtaining the current node state of the switch cabinet to be controlled sequentially according to the communication point table of the secondary panel of the switch cabinet and the operation state Boolean character string obtained based on the modbus-rtu protocol comprises the following steps:
a1, acquiring an operation state Boolean character string of a switch cabinet to be controlled in sequence based on a modbus-rtu protocol;
a2, analyzing the operation state Boolean character string by using a communication point table of a secondary panel of the switch cabinet to obtain the operation states of the circuit breaker, the ground knife and the handcart;
in this embodiment, the table of communication points of the secondary panel of the switch cabinet is shown in table 1:
TABLE 1
For example, if the boolean character string of the running state is 0101101100000000, according to the communication point table of the secondary panel of the switch cabinet, the current node state of the switch cabinet to be controlled in sequence is a hot standby node state;
a3, aiming at the condition that the running state of the circuit breaker is not in the on-position, the running state of the ground knife is not in the on-position, and the running state of the handcart is not in the test position, the current node state of the switch cabinet to be controlled in sequence is a working node state;
a4, aiming at the condition that the running state of the circuit breaker is in the separated position and is not in the combined position, the running state of the ground knife is in the separated position and is not in the combined position, and the running state of the handcart is in the working position and is not in the test position, the current node state of the switch cabinet to be controlled in sequence is a hot standby node state;
a5, aiming at the condition that the running state of the circuit breaker is in the separated position and is not in the combined position, the running state of the ground knife is in the separated position and is not in the combined position, and the running state of the handcart is in the test position and is not in the working position, the current node state of the switch cabinet to be controlled in sequence is a cold standby node state;
a6, aiming at the condition that the running state of the circuit breaker is not in the on-position state, the running state of the ground knife is not in the on-position state, and the running state of the handcart is not in the working position, the current node state of the switch cabinet to be controlled in sequence is an overhaul node state.
The action allowing unit is used for obtaining a positive sequence action allowing result and/or a reverse sequence action allowing result of the switch cabinet to be controlled in sequence according to the communication point table of the secondary panel of the switch cabinet, the operation state Boolean character string obtained based on the modbus-rtu protocol and the action overtime condition;
the method for obtaining the positive sequence action permission result and/or the reverse sequence action permission result of the switch cabinet to be controlled sequentially according to the communication point table of the secondary panel of the switch cabinet, the operation state Boolean character string obtained based on the modbus-rtu protocol and the action timeout condition comprises the following steps:
b1, acquiring an operation state Boolean character string based on a modbus-rtu protocol;
b2, analyzing the operation state Boolean character string by using a communication point table of a secondary panel of the switch cabinet to obtain the operation states of the circuit breaker, the ground knife and the handcart, the position state of the control device, the action overtime condition and the comprehensive protection fault state;
b3, aiming at the conditions that the operation state of the circuit breaker is not in the on-position, the operation state of the handcart is not in the test position, the ground knife state is not in the on-position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the circuit breaker is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is the circuit breaker opening action permission, and the reverse sequence action permission result is null;
b4, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the working position and is not in the test position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the handcart is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the handcart is permitted to withdraw;
b5, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the working position and is not in the test position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the reverse order action is not overtime, and the comprehensive protection fault state is that the circuit breaker is not faulty, the reverse order action permission result of the switch cabinet to be controlled is that the circuit breaker is permitted to be closed;
b6, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the test position and is not in the working position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the ground knife is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the ground knife is permitted to be closed;
b7, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the test position and is not in the working position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the handcart is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the handcart is allowed to enter the handcart;
and B8, aiming at the condition that the running state of the circuit breaker is not in the on-position state, the running state of the handcart is not in the working position of the test position, the ground knife state is not in the on-position state, the position state of the control device is far away, the action overtime condition is that the reverse order action is not overtime, and the comprehensive protection fault state is that the ground knife is not faulty, the positive action permission result of the switch cabinet to be controlled in sequence is null, and the reverse order action permission result is that the ground knife is in brake opening action permission.
When a sequential control action command is received by a switch cabinet to be sequentially controlled and a positive sequence action or a reverse sequence action is required to be executed according to the sequential control action command, the node state of the switch cabinet is subjected to the positive sequence change or the reverse sequence change, if the node state is subjected to the positive sequence change, a single-step positive sequence action is required to be executed, and if the time from the sending of the action command to the completion of the action command exceeds a preset time length corresponding to the single-step positive sequence action or the single-step reverse sequence action, the action overtime condition is positive sequence action overtime or reverse sequence action overtime; the preset duration corresponding to the single-step positive sequence action comprises the following steps: the preset time length of opening the circuit breaker is 10s, the preset time length of returning the handcart is 60s, and the preset time length of closing the ground knife is 15s; the preset duration corresponding to the single-step reverse sequence action comprises the following steps: the ground knife switch-off preset time length is 15s, the handcart entering preset time length is 60s, and the breaker switch-on preset time length is 10s.
And aiming at the overtime of the positive sequence action or the overtime of the negative sequence action, the comprehensive protection fault state is one of a breaker fault, a handcart fault or a ground knife fault, the corresponding breaker, handcart or ground knife is subjected to fault inspection and maintenance based on the breaker, handcart or ground knife which is required to be allowed by action of the node state change, the fault breaker, handcart or ground knife is reset to the state before the execution of the action instruction until the maintenance is finished, and the action instruction is tried to be executed again.
The control device comprises an action instruction unit and a control unit, wherein the action instruction unit is used for issuing a sequence control action instruction based on a modus-rtu protocol by using a control device, and the sequence control action instruction comprises a positive sequence control action instruction and a reverse sequence control action instruction;
the method for issuing the sequence control action instruction based on the modus-rtu protocol by using the control device comprises the following steps:
setting the position state of an operation device of a switch cabinet to be controlled in sequence to be far;
c2, acquiring the current node state and the target node state of the switch cabinet to be controlled in sequence;
c3, respectively obtaining a node index number corresponding to the current node state and a node index number corresponding to the target node state according to the current node state and the target node state of the switch cabinet to be controlled in sequence;
c4, judging whether the node index number corresponding to the current node state is smaller than the node index number corresponding to the target node state, if so, entering a step C5, otherwise, entering a step C6;
c5, constructing a positive sequence control action instruction from the node index number corresponding to the current node state to the node index number corresponding to the target node state, and issuing the positive sequence control action instruction based on a modus-rtu protocol;
the positive sequence control action instruction comprises a plurality of instructions for executing single-step positive sequence actions;
as shown in fig. 2, the single step positive sequence action includes: the breaker is opened, and then the node state of the switch cabinet to be controlled in sequence enters a hot standby node state from a working node state; the handcart is moved back, and the node state of the switch cabinet to be controlled in sequence enters the cold standby node state from the hot standby node state; and closing the ground knife, and enabling the node state of the switch cabinet to be controlled in sequence to enter an overhaul state from the cold standby node state.
C6, constructing an inverse sequence control action instruction from the node index number corresponding to the current node state to the node index number corresponding to the target node state, and issuing the inverse sequence control action instruction by a modus-rtu protocol;
the reverse sequence control action instruction comprises a plurality of instructions for executing single-step reverse sequence actions;
as shown in fig. 2, the single-step reverse sequence action includes: the ground knife is opened, and the node state of the switch cabinet to be controlled in sequence enters a cold standby node state from an overhaul node state; the handcart enters the handcart, and the node state of the switch cabinet to be controlled in sequence enters the hot standby node state from the cold standby node state; and when the circuit breaker is switched on, the node state of the switch cabinet to be controlled in sequence is changed from the hot standby node state to the working node state.
The register locations and the table of the write data of the single-step positive sequence action instruction and the single-step negative sequence action instruction are shown in table 2:
TABLE 2
For example, the circuit breaker closing instruction 01 C8 000000 06 01 06 00 46 AA 55 is sent based on the modus-rtu protocol, where the serial number is 01 C8, the protocol identifier is 00, the length is 00, the server address is 01, the function code is 06, the register address is 00 46, and the write data is AA 55.
And the action success signal unit is used for sending a signal for successfully executing the sequence control action instruction to the touch screen based on the MQTT protocol after the switch cabinet to be controlled in sequence executes the sequence control action instruction.
And S3, carrying out one-key sequential control on the switch cabinet to be sequential controlled based on the control model, and sending a signal for successfully executing the sequential control action instruction to the touch screen.
The step S3 comprises the following steps:
s31, based on an MQTT protocol, a touch screen is utilized to send a sequential control command comprising the state of a target node to a gateway with a control model;
s32, receiving a sequential control command by using a gateway with a control model, and activating the control model;
s33, acquiring the current node state of the switch cabinet model with sequential control by using the current node state unit;
s34, obtaining node index numbers corresponding to the current node state and the target node state by using a node index number unit;
s35, obtaining an operation state Boolean character string based on a modbus-rtu protocol and the current node state of a switch cabinet to be controlled in sequence;
s36, obtaining a positive sequence action permission result and/or a reverse sequence action permission result of the switch cabinet to be controlled sequentially by utilizing the action permission unit according to a communication point table, an operation state Boolean character string and an action overtime condition of the secondary panel of the switch cabinet;
s37, based on node index numbers corresponding to the current node state and the target node state, a positive sequence action permission result and/or a negative sequence action permission result of the switch cabinet to be controlled in sequence, issuing a sequence control action instruction by utilizing an action instruction unit;
s38, executing a sequence control action instruction by using a switch cabinet to be controlled in sequence until the execution of the positive sequence control action instruction or the reverse sequence control action instruction is completed, and entering S39;
and S39, sending a signal for successfully executing the sequence control action instruction to the touch screen based on the MQTT protocol.
According to the invention, the size comparison between the node index number corresponding to the current node state and the node index number corresponding to the target node state can be realized by only reaching the sequential control instruction in the target node state, the forward sequence control action instruction or the reverse sequence control action instruction can be determined and issued through the action allowing unit and the action instruction unit, and the one-key sequence control of the switch cabinet can be realized through a plurality of single-step forward sequence actions or a plurality of single-step reverse sequence actions.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (5)
1. A one-key sequential control method of a switch cabinet is characterized by comprising the following steps:
s1, acquiring a switch cabinet to be controlled in sequence, wherein the switch cabinet to be controlled in sequence has a node state;
the switch cabinet to be controlled in sequence is any one of an outgoing line type switch cabinet model, an incoming line type switch cabinet model and an isolation type switch cabinet model;
the outgoing line type switch cabinet model is provided with a circuit breaker, a handcart and a ground knife; the node states of the outgoing line type switch cabinet model comprise a working node state, a hot standby node state, a cold standby node state and an overhaul node state;
the incoming line type switch cabinet model is provided with a circuit breaker and a handcart; the node states of the incoming line type switch cabinet model comprise a working node state, a hot standby node state and a cold standby node state;
the isolating switch cabinet model is only provided with a handcart; the node states of the isolation type switch cabinet model comprise hot standby node states and cold standby node states;
s2, establishing a control model of the switch cabinet to be controlled in sequence in each node state;
the control model includes:
the node index number unit is used for setting the node index numbers corresponding to the working node state, the hot standby node state, the cold standby node state and the maintenance node state of the switch cabinet to be controlled in sequence to 0, 1, 2 and 3 respectively;
the current node state unit is used for obtaining the current node state of the switch cabinet to be controlled in sequence according to the communication point table of the secondary panel of the switch cabinet and the operation state Boolean character string obtained based on the modbus-rtu protocol;
the action allowing unit is used for obtaining a positive sequence action allowing result and/or a reverse sequence action allowing result of the switch cabinet to be controlled in sequence according to the communication point table of the secondary panel of the switch cabinet, the operation state Boolean character string obtained based on the modbus-rtu protocol and the action overtime condition;
the control device comprises an action instruction unit and a control unit, wherein the action instruction unit is used for issuing a sequence control action instruction based on a modus-rtu protocol by using a control device, and the sequence control action instruction comprises a positive sequence control action instruction and a reverse sequence control action instruction;
the action success signal unit is used for sending a signal for successfully executing the sequence control action instruction to the touch screen based on the MQTT protocol after the switch cabinet to be controlled in sequence executes the sequence control action instruction;
s3, carrying out one-key sequential control on the switch cabinet to be sequential controlled based on the control model, and sending a signal of successfully executing the sequential control action instruction to the touch screen;
the step S3 comprises the following steps:
s31, based on an MQTT protocol, a touch screen is utilized to send a sequential control command comprising the state of a target node to a gateway with a control model;
s32, receiving a sequential control command by using a gateway with a control model, and activating the control model;
s33, acquiring the current node state of the switch cabinet model with sequential control by using the current node state unit;
s34, obtaining node index numbers corresponding to the current node state and the target node state by using a node index number unit;
s35, obtaining an operation state Boolean character string based on a modbus-rtu protocol and the current node state of a switch cabinet to be controlled in sequence;
s36, obtaining a positive sequence action permission result and/or a reverse sequence action permission result of the switch cabinet to be controlled sequentially by utilizing the action permission unit according to a communication point table, an operation state Boolean character string and an action overtime condition of the secondary panel of the switch cabinet;
s37, based on node index numbers corresponding to the current node state and the target node state, a positive sequence action permission result and/or a negative sequence action permission result of the switch cabinet to be controlled in sequence, issuing a sequence control action instruction by utilizing an action instruction unit;
s38, executing a sequence control action instruction by using a switch cabinet to be controlled in sequence until the execution of the positive sequence control action instruction or the reverse sequence control action instruction is completed, and entering S39;
and S39, sending a signal for successfully executing the sequence control action instruction to the touch screen based on the MQTT protocol.
2. The one-key sequential control method of a switch cabinet according to claim 1, wherein the method for obtaining the current node state of the switch cabinet to be sequential controlled according to the communication point table of the secondary panel of the switch cabinet and the operation state boolean character string obtained based on the modbus-rtu protocol comprises the following steps:
a1, acquiring an operation state Boolean character string of a switch cabinet to be controlled in sequence based on a modbus-rtu protocol;
a2, analyzing the operation state Boolean character string by using a communication point table of a secondary panel of the switch cabinet to obtain the operation states of the circuit breaker, the ground knife and the handcart;
a3, aiming at the condition that the running state of the circuit breaker is not in the on-position, the running state of the ground knife is not in the on-position, and the running state of the handcart is not in the test position, the current node state of the switch cabinet to be controlled in sequence is a working node state;
a4, aiming at the condition that the running state of the circuit breaker is in the separated position and is not in the combined position, the running state of the ground knife is in the separated position and is not in the combined position, and the running state of the handcart is in the working position and is not in the test position, the current node state of the switch cabinet to be controlled in sequence is a hot standby node state;
a5, aiming at the condition that the running state of the circuit breaker is in the separated position and is not in the combined position, the running state of the ground knife is in the separated position and is not in the combined position, and the running state of the handcart is in the test position and is not in the working position, the current node state of the switch cabinet to be controlled in sequence is a cold standby node state;
a6, aiming at the condition that the running state of the circuit breaker is not in the on-position state, the running state of the ground knife is not in the on-position state, and the running state of the handcart is not in the working position, the current node state of the switch cabinet to be controlled in sequence is an overhaul node state.
3. The one-key sequential control method of a switch cabinet according to claim 1, wherein the method for obtaining a positive sequence action permission result and/or a negative sequence action permission result of the switch cabinet to be sequentially controlled according to a communication point table of a secondary panel of the switch cabinet, an operation state boolean character string acquired based on a modbus-rtu protocol and an action timeout condition comprises the following steps:
b1, acquiring an operation state Boolean character string based on a modbus-rtu protocol;
b2, analyzing the operation state Boolean character string by using a communication point table of a secondary panel of the switch cabinet to obtain the operation states of the circuit breaker, the ground knife and the handcart, the position state of the control device, the action overtime condition and the comprehensive protection fault state;
b3, aiming at the conditions that the operation state of the circuit breaker is not in the on-position, the operation state of the handcart is not in the test position, the ground knife state is not in the on-position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the circuit breaker is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is the circuit breaker opening action permission, and the reverse sequence action permission result is null;
b4, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the working position and is not in the test position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the handcart is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the handcart is permitted to withdraw;
b5, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the working position and is not in the test position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the reverse order action is not overtime, and the comprehensive protection fault state is that the circuit breaker is not faulty, the reverse order action permission result of the switch cabinet to be controlled is that the circuit breaker is permitted to be closed;
b6, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the test position and is not in the working position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the ground knife is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the ground knife is permitted to be closed;
b7, aiming at the conditions that the operation state of the circuit breaker is in the separated position and is not in the combined position, the operation state of the handcart is in the test position and is not in the working position, the ground knife state is in the separated position and is not in the combined position, the position state of the control device is far away, the action overtime condition is that the positive sequence action is not overtime, and the comprehensive protection fault state is that the handcart is not faulty, the positive sequence action permission result of the switch cabinet to be controlled in sequence is that the handcart is allowed to enter the handcart;
and B8, aiming at the condition that the running state of the circuit breaker is not in the on-position state, the running state of the handcart is not in the working position of the test position, the ground knife state is not in the on-position state, the position state of the control device is far away, the action overtime condition is that the reverse order action is not overtime, and the comprehensive protection fault state is that the ground knife is not faulty, the positive action permission result of the switch cabinet to be controlled in sequence is null, and the reverse order action permission result is that the ground knife is in brake opening action permission.
4. The one-key sequential control method of a switch cabinet according to claim 1, wherein the method for issuing the sequential control action instruction based on a modus-rtu protocol by using a control device comprises the following steps:
setting the position state of an operation device of a switch cabinet to be controlled in sequence to be far;
c2, acquiring the current node state and the target node state of the switch cabinet to be controlled in sequence;
c3, respectively obtaining a node index number corresponding to the current node state and a node index number corresponding to the target node state according to the current node state and the target node state of the switch cabinet to be controlled in sequence;
c4, judging whether the node index number corresponding to the current node state is smaller than the node index number corresponding to the target node state, if so, entering a step C5, otherwise, entering a step C6;
c5, constructing a positive sequence control action instruction from the node index number corresponding to the current node state to the node index number corresponding to the target node state, and issuing the positive sequence control action instruction based on a modus-rtu protocol;
and C6, constructing an inverse sequence control action instruction from the node index number corresponding to the current node state to the node index number corresponding to the target node state, and issuing the inverse sequence control action instruction by a modus-rtu protocol.
5. The one-key sequential control method of a switch cabinet according to claim 1, wherein the positive sequence control action instruction comprises a plurality of instructions for executing a single-step positive sequence action; the reverse sequence control action instruction comprises a plurality of instructions for executing single-step reverse sequence actions;
the single step positive sequence action includes: the breaker is opened, and then the node state of the switch cabinet to be controlled in sequence enters a hot standby node state from a working node state; the handcart is moved back, and the node state of the switch cabinet to be controlled in sequence enters the cold standby node state from the hot standby node state; the earth knife is switched on, and the node state of the switch cabinet to be controlled in sequence enters an overhaul state from the cold standby node state;
the single-step reverse sequence action comprises: the ground knife is opened, and the node state of the switch cabinet to be controlled in sequence enters a cold standby node state from an overhaul node state; the handcart enters the handcart, and the node state of the switch cabinet to be controlled in sequence enters the hot standby node state from the cold standby node state; and when the circuit breaker is switched on, the node state of the switch cabinet to be controlled in sequence is changed from the hot standby node state to the working node state.
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