CN219457003U - Polymorphic defect automatic loading device - Google Patents
Polymorphic defect automatic loading device Download PDFInfo
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- CN219457003U CN219457003U CN202223137985.1U CN202223137985U CN219457003U CN 219457003 U CN219457003 U CN 219457003U CN 202223137985 U CN202223137985 U CN 202223137985U CN 219457003 U CN219457003 U CN 219457003U
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Abstract
The utility model relates to an automatic polymorphic defect loading device. The intelligent control system comprises a CPU control unit, a communication signal input and output module, a PT signal input and output module, a terminal remote control input and output module, a maintenance state remote signaling output module, a communication and maintenance network port and a touch screen, wherein the communication signal input and output module, the PT signal input and output module, the terminal remote control input and output module, the maintenance state remote signaling output module, the communication and maintenance network port and the touch screen are connected with the CPU control unit. The utility model can simulate the field defects existing in the field actual operation environment of the power distribution network and reproduce different field defect conditions.
Description
Technical Field
The utility model belongs to the technical field of feeder automation, and particularly relates to an automatic polymorphic defect loading device.
Background
Along with the development of social economy and the rapid progress of productivity, the demand of power supply users on power supply reliability is continuously improved, feeder Automation (FA) is a technical means for effectively improving the power supply reliability and shortening the power failure time, and is widely paid attention to the technical field of power distribution networks, the practical application of power distribution automation terminal equipment with the FA function on the power distribution network is wider, and the efficient and accurate operation maintenance on a large number of power distribution terminal equipment on the site is a necessary means for ensuring the normal operation of the power distribution terminal equipment and the reliable and stable FA action. The prior power distribution automation terminal FA related operation and maintenance training is mainly focused on the FA logic and algorithm learning training, and the fact that a large number of unstable factors exist in the actual operation environment of the power distribution network site is not considered, such as site defects of terminal communication faults, PT disconnection, switch refusal, switch slow movement, overhaul and registration states and the like, can influence the FA functions of the power distribution automation terminal. How to consider the influence of different defect conditions on the FA on the spot on the FA functional logic in the FA operation and maintenance training, invert and reproduce the spot operation environment of the distribution network, develop the targeted defect investigation and fault recovery operation and maintenance training, and become the focus of the current distribution automation terminal and FA operation and maintenance training.
Disclosure of Invention
The utility model aims to provide an automatic polymorphic defect loading device which can simulate field defects existing in a field actual operation environment of a power distribution network and reproduce different field defect conditions.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a polymorphic defect automatic loading device, includes CPU control unit and the communication signal input and output module, PT signal input and output module, terminal remote control input and output module, maintenance state remote signalling output module, communication and maintenance net gape, touch-sensitive screen that are connected with this CPU control unit.
In one embodiment of the utility model, the CPU control unit adopts an STM32F103VFT6 chip.
In an embodiment of the present utility model, the communication signal input and output module includes a switching matrix connected to the CPU control unit, and a first RJ45 interface for inputting communication signals and a second RJ45 interface for outputting communication signals, where a communication network line of the practical training power distribution terminal device is connected to the communication network switch after passing through the first RJ45 interface and the second RJ45 interface.
In an embodiment of the utility model, the PT signal input and output module includes a switching module connected to the CPU control unit, and a PT signal input interface and a PT signal output interface connected to the switching module, where a primary switch PT secondary loop corresponding to the training power distribution terminal device is connected to the PT signal input interface, and the PT signal output interface is connected to a voltage acquisition terminal of the training power distribution terminal device.
In an embodiment of the utility model, the terminal remote control input and output module comprises a delay/shielding control signal loop, a terminal remote control input interface and a terminal remote control output interface connected with the CPU control unit through the delay/shielding control signal loop, wherein a remote control opening signal of the practical training power distribution terminal equipment is accessed to the terminal remote control input interface, and the terminal remote control output interface is accessed to a primary switch remote control terminal correspondingly controlled by the power distribution terminal to be tested.
In an embodiment of the utility model, the maintenance status remote signaling output module comprises a signal output driving module connected with the CPU control unit and a maintenance status remote signaling output interface connected with the signal output driving module, and the maintenance status remote signaling output interface is connected with a maintenance status remote signaling input terminal of the practical training power distribution terminal equipment.
In one embodiment of the present utility model, the communication and maintenance portal includes a third RJ45 interface connected to the CPU control unit.
Compared with the prior art, the utility model has the following beneficial effects: the polymorphic defect automatic loading device can simulate the field defects existing in the field actual operation environment of the power distribution network and reproduce different field defect conditions.
Drawings
FIG. 1 is a schematic block diagram of an automated polymorphic defect loading apparatus according to the present utility model.
Fig. 2 is a schematic circuit diagram of a CPU control unit.
Fig. 3 is a schematic circuit diagram of a communication signal input and output module.
Fig. 4 is a schematic circuit diagram of the PT signal input and output module.
Fig. 5 is a schematic circuit diagram of a remote control input and output module of the terminal.
Fig. 6 is a schematic circuit diagram of the maintenance status remote signaling output module.
Fig. 7 is a schematic diagram of a communication and maintenance portal circuit.
Detailed Description
The technical scheme of the utility model is specifically described below with reference to the accompanying drawings.
As shown in FIG. 1, the automatic polymorphic defect loading device comprises a CPU control unit, a communication signal input and output module, a PT signal input and output module, a terminal remote control input and output module, a maintenance state remote signaling output module, a communication and maintenance network port and a touch screen, wherein the communication signal input and output module, the PT signal input and output module, the terminal remote control input and output module, the maintenance state remote signaling output module, the communication and maintenance network port and the touch screen are connected with the CPU control unit.
As shown in fig. 2, the CPU control unit is a core part of the whole device, and adopts a high-performance single-chip microcomputer (STM 32F103VFT6 is adopted in this example) to control the communication signal switching matrix to realize on-off control of the communication input and output interfaces, so as to simulate a communication defect; collecting the remote control opening state of the practical training power distribution terminal equipment, carrying out instant and delayed re-output or shielding output according to set parameters, and simulating switch action defects such as switch refusal and slow movement; and the influence of the overhaul state of the primary switch on the FA function is simulated by controlling the opening signal of the overhaul state remote signaling output interface.
As shown in fig. 3, the communication signal input and output module is composed of an RJ45 interface for inputting communication signals, an RJ45 interface for outputting communication signals, and a switching matrix, and the communication network cable of the practical training power distribution terminal device is connected to the communication network switch after passing through the communication signal input interface and the communication signal output interface. When no communication defect is set, the communication signal input interface is electrically and normally communicated with the communication signal output interface, so that the communication of the power distribution terminal equipment is not influenced; when the communication defects are required to be set according to the practical training scene, the switching matrix can be controlled according to the set communication fault parameters, so that the states of short-time interruption, long-time interruption, time interruption and the like of the communication signals are realized, and the communication defects such as communication interruption, communication delay and the like are simulated.
As shown in fig. 4, the PT signal input and output module is composed of a PT signal input interface, a PT signal output interface, and a switching module, and the primary switch PT secondary loop corresponding to the training power distribution terminal device is connected to the PT signal input interface, and the PT signal output interface is connected to the voltage acquisition terminal of the training power distribution terminal device. When the PT disconnection defect is not set, the PT signal input interface is electrically and normally communicated with the PT signal output interface, and the voltage acquisition of the power distribution terminal equipment is not influenced; when PT wire breakage defects are required to be set according to the training scene, the switching module is controlled according to the set PT wire breakage defects, one path of the PT signal loop is cut off, and the PT wire breakage defects are simulated.
As shown in fig. 5, the terminal remote control input and output module is composed of a terminal remote control input interface, a terminal remote control output interface and a delay/shielding control signal loop, a remote control output signal of the practical training power distribution terminal equipment is connected to the terminal remote control input interface, the terminal remote control output interface is connected to a primary switch remote control terminal correspondingly controlled by the power distribution terminal to be tested, a remote control output instruction of the terminal is connected to an input GPIO port of the CPU control unit through a level conversion loop by the terminal remote control input port, the CPU control unit outputs the remote control instruction in real time, in a delayed manner or in a shielding manner according to a set switch defect type after acquiring a switch state, and then outputs the remote control instruction to the primary switch remote control terminal from the terminal remote control output interface, so that defect simulation of switch rejection and switch slow motion is realized.
As shown in fig. 6, the maintenance status remote signaling output module includes a maintenance status remote signaling output interface and a signal output driving module, and the output interface is connected to the maintenance status remote signaling input terminal of the practical training power distribution terminal equipment. When defect interference factors of the overhaul state are set, the signal output driving module drives the overhaul state remote signaling output interface to open and close the position signal under the instruction of the CPU control unit, so that the overhaul state remote signaling collected by the power distribution terminal equipment is closed, the power distribution terminal equipment locks the remote control instruction internally, and protection, FA and remote control actions are forbidden, so that the FA action is invalid.
As shown in FIG. 7, the communication and maintenance portal is used for remote communication and maintenance between the upper computer and the polymorphic defect automatic loading device, so as to realize remote control and parameter setting of device functions.
The touch screen is used as a man-machine interface for in-situ operation and is used for carrying out operations such as parameter setting, FA defect setting and the like in the local of the polymorphic defect automatic loading device.
The device is applied to practical training power distribution terminal equipment with a Feeder Automation (FA) function so as to realize the automatic loading of polymorphic defects of the feeder automation practical training, and the device needs to be connected with a loop and comprises the following components:
the communication network line of the practical training power distribution terminal equipment is connected with the communication signal input interface of the device, and the communication signal output interface of the device is connected with the communication network switch;
the PT signal output loop of the device is connected to the voltage acquisition loop of the practical training power distribution terminal equipment;
the remote control opening signal of the training power distribution terminal equipment is accessed to a terminal remote control input interface, and a terminal remote control output interface is accessed to a primary switch remote control terminal which is correspondingly controlled by the power distribution terminal to be tested;
the maintenance state remote signaling output interface of the device is connected with the maintenance state remote signaling input terminal of the practical training power distribution terminal equipment.
After the line connection is completed, the automatic loading mode of the polymorphic defects of the feeder line automatic training is realized as follows:
(1) Setting parameters of FA defect interference factors applied by the multi-state defect automatic loading device, wherein the settable defect parameters comprise:
when the communication defect is set, short-time interruption, long-time interruption and intermittent communication can be set;
when PT broken line defects are set, A-phase broken lines, B-phase broken lines and C-phase broken lines can be set;
setting switch action defects, setting switch refusing action and switch slow action, and supporting setting switch slow action delay;
setting maintenance state input and exit when the maintenance state defect is set;
(2) The FA function test case is operated, normal operation of the power distribution network is simulated, and short-circuit fault simulation of the power distribution network is triggered at a set moment;
(3) After the simulation fault of the power distribution network occurs, the power distribution terminal equipment to be tested should start corresponding FA actions according to the data acquired and communicated by the power distribution terminal equipment, and under the FA defect interference applied by the polymorphic defect automatic loading device, the action results possibly occurring by the power distribution terminal equipment comprise:
the correct action, the FA action logic and the result are not affected by the FA defect interference, and the actions of fault isolation and non-fault line recovery are correctly completed;
the fault range is expanded, the power distribution terminal device reasonably expands the fault isolation range according to the received FA defect interference condition, and basically completes the actions of fault isolation and non-fault line recovery;
the power distribution terminal device executes the wrong FA action under the interference of the FA defect, and fault isolation and recovery of the non-fault line are not completed correctly;
the power distribution terminal device does not start any action of the FA under the fault interference of the FA, and fault isolation and recovery of a non-fault line are not completed;
(4) And (3) carrying out operation and maintenance training for FA defect investigation and fault recovery according to the FA function action execution result of the practical training power distribution terminal, repeating the operation of the step (2) after the fault recovery is completed, and re-simulating the fault of the power distribution network, wherein if the defect investigation and recovery are correct, the FA action result of the practical training power distribution terminal is completely correct.
The device can be applied to practical training power distribution terminal equipment with a Feeder Automation (FA) function, can realize automatic simulation and loading of field environment defect interference factors which affect FA action logic and results, can be suitable for various FA mode types, can carry out real inversion and reproduction on field defects which affect FA function correct actions under the actual running environment of a power distribution network field, can display correct actions and abnormal action results of the power distribution automation terminal under different defect conditions and different FA mode types, can carry out FA defect investigation and fault recovery practical training, can actually improve the professional skill level of FA field operation and maintenance personnel, can improve practical training efficiency and practical training effect, and has practical popularization value.
The above is a preferred embodiment of the present utility model, and all changes made according to the technical solution of the present utility model belong to the protection scope of the present utility model when the generated functional effects do not exceed the scope of the technical solution of the present utility model.
Claims (7)
1. The polymorphic defect automatic loading device is characterized by comprising a CPU control unit, a communication signal input and output module, a PT signal input and output module, a terminal remote control input and output module, a maintenance state remote signaling output module, a communication and maintenance network port and a touch screen, wherein the communication signal input and output module, the PT signal input and output module, the terminal remote control input and output module, the maintenance state remote signaling output module, the communication and maintenance network port and the touch screen are connected with the CPU control unit.
2. The automated polymorphic defect loading apparatus of claim 1, wherein the CPU control unit employs STM32F103VFT6 chips.
3. The automatic polymorphic defect loading device according to claim 1, wherein the communication signal input and output module comprises a switching matrix connected with the CPU control unit, a first RJ45 interface connected with the switching matrix and used for inputting communication signals, and a second RJ45 interface used for outputting communication signals, and the communication network line of the practical training power distribution terminal device is connected to the communication network switch after passing through the first RJ45 interface and the second RJ45 interface.
4. The automatic polymorphic defect loading device according to claim 1, wherein the PT signal input and output module comprises a switching module connected with the CPU control unit, a PT signal input interface and a PT signal output interface connected with the switching module, a PT secondary loop of a primary switch corresponding to the practical training power distribution terminal device is connected to the PT signal input interface, and the PT signal output interface is connected to a voltage acquisition terminal of the practical training power distribution terminal device.
5. The automatic polymorphic defect loading device according to claim 1, wherein the terminal remote control input and output module comprises a delay/shielding control signal loop, a terminal remote control input interface and a terminal remote control output interface connected with the CPU control unit through the delay/shielding control signal loop, the remote control output interface of the practical training power distribution terminal equipment is accessed to the terminal remote control input interface, and the terminal remote control output interface is accessed to a primary switch remote control terminal correspondingly controlled by the power distribution terminal to be tested.
6. The automatic polymorphic defect loading device according to claim 1, wherein the maintenance status remote signaling output module comprises a signal output driving module connected with the CPU control unit and a maintenance status remote signaling output interface connected with the signal output driving module, and the maintenance status remote signaling output interface is connected to a maintenance status remote signaling input terminal of the practical training power distribution terminal equipment.
7. The automated polymorphic defect loading apparatus of claim 1, wherein the communication and maintenance portal comprises a third RJ45 interface connected to the CPU control unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223137985.1U CN219457003U (en) | 2022-11-25 | 2022-11-25 | Polymorphic defect automatic loading device |
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| CN202223137985.1U CN219457003U (en) | 2022-11-25 | 2022-11-25 | Polymorphic defect automatic loading device |
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| CN219457003U true CN219457003U (en) | 2023-08-01 |
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| CN202223137985.1U Active CN219457003U (en) | 2022-11-25 | 2022-11-25 | Polymorphic defect automatic loading device |
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