CN114094696A - Switching device, method and system for distribution network automation measurement and control terminal - Google Patents
Switching device, method and system for distribution network automation measurement and control terminal Download PDFInfo
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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
- H02J13/00001—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
- H02J13/00002—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 monitoring
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Abstract
The application relates to a switching device, method and system of a distribution network automation measurement and control terminal. Automatic measurement and control terminal's of distribution network auto change over device includes: the signal acquisition module is used for acquiring a signal set in a power distribution network line; the logic control module is connected with the signal acquisition module and used for acquiring a logic control signal according to the signal set and preset model parameters; the preset model parameter is a model parameter of one of a plurality of distribution network automation measurement and control terminals; the first end of the driving connection module is connected with the logic control module, a plurality of second ends of the driving connection module are respectively connected with a plurality of distribution network automation measurement and control terminals in a one-to-one correspondence mode, and the driving connection module is used for transmitting a signal set to the distribution network automation measurement and control terminals corresponding to the logic control signal control. The switching device of the distribution network automatic measurement and control terminal can effectively improve the efficiency of a new student in training the distribution network automatic measurement and control terminal.
Description
Technical Field
The application relates to the technical field of power grids, in particular to a switching device, a switching method and a switching system of an automatic measurement and control terminal of a power distribution network.
Background
Along with the quick development of electric power system, electric power system degree of automation is higher and higher, training requirement before technical staff is on duty in electric power transmission and distribution network system is higher and higher, not only require field device compliance to the training system to be higher and higher, and to the suitability of brand, the application scene of different models of fast switch-over is more and more, in the current training process, need the mode of artifical change of wire to insert distribution network automation measurement and control terminal (DTU) or only carry out the training of the distribution network automation measurement and control terminal product of single brand, let the training effect limited, seriously influenced distribution network automation system's training quality.
Disclosure of Invention
Therefore, it is necessary to provide a switching device, a method and a system for an automatic measurement and control terminal of a power distribution network, which can improve the training efficiency of the automatic measurement and control terminal, in order to solve the above technical problems.
The utility model provides a switching device of distribution network automation measurement and control terminal, the device includes:
the signal acquisition module is used for acquiring a signal set in a power distribution network line;
the logic control module is connected with the signal acquisition module and used for acquiring a logic control signal according to the signal set and preset model parameters; the preset model parameter is a model parameter of one of a plurality of distribution network automation measurement and control terminals;
the first end of the driving connection module is connected with the logic control module, a plurality of second ends of the driving connection module are respectively connected with a plurality of distribution network automation measurement and control terminals in a one-to-one correspondence mode, and the driving connection module is used for transmitting a signal set to the distribution network automation measurement and control terminals corresponding to the logic control signal control.
In one embodiment, the signal set includes a telemetry signal, a remote control signal and a remote signaling signal, the signal obtaining module is configured to obtain a first input amount according to the telemetry signal, obtain a second input amount according to the remote control signal, and obtain a third input amount according to the remote signaling signal, and the logic control module is configured to obtain the logic control signal according to the first input amount, the second input amount, the third input amount and a preset model parameter.
In one embodiment, the signal obtaining module includes three first isolation transformation units, and the three first isolation transformation units are configured to respectively convert the obtained telemetry signal, remote control signal, and remote control signal into a first input amount, a second input amount, and a third input amount in a one-to-one correspondence manner.
In one embodiment, the drive connection module includes:
the first driving unit is connected with the logic control module and used for receiving the logic control signal and generating a switching unit driving signal;
and the first end of the switch unit is connected with the first driving unit, and the second end of the switch unit is connected with the plurality of distribution network automation measurement and control terminals in a one-to-one correspondence manner and used for responding to a driving signal of the switch unit to control the connection and disconnection of the first driving unit and one of the distribution network automation measurement and control terminals.
In one embodiment, the drive connection module includes:
the first ends of the driving channels are connected with the logic control module, and the second ends of the driving channels are respectively connected with the automatic measurement and control terminals of the power distribution network in a one-to-one correspondence manner; the logic control signal is used for conducting one of the driving paths.
In one embodiment, the drive path comprises:
the second driving unit is connected with the logic control module and used for receiving the logic control signal and generating a first relay control signal;
and one end of the first relay is connected with the second driving unit, the other end of the first relay is connected with the distribution network automation measurement and control terminal, and the first relay is used for responding to a first relay control signal so as to control the connection and disconnection of the first relay and a distribution network automation measurement and control terminal loop.
In one embodiment, the second driving unit includes:
the second relay is connected with the logic control module and used for receiving the logic control signal and generating a switching triode control signal;
and one end of the switch triode is connected with the second relay, the other end of the switch triode is connected with the first relay, and the switch triode is used for responding to the triode control signal to generate a first relay control signal.
In one embodiment, the driving connection module further includes:
and one end of each second isolation conversion unit is connected with the logic control module, the other end of each second isolation conversion unit is connected with the second driving unit in a one-to-one correspondence manner, and the second isolation conversion units are used for isolating the logic control signals and converting the logic control signals into fourth input values so as to control the disconnection and the connection of the second relays.
A switching method for an automatic measurement and control terminal of a power distribution network comprises the following steps:
acquiring a signal set in a power distribution network line;
acquiring a logic control signal according to the signal set and preset model parameters; the preset model parameters are parameters of a model of one of the automatic measurement and control terminals of the power distribution network;
the control drive connection module transmits the signal set to the distribution network automation measurement and control terminal corresponding to the logic control signal control, the first end of the drive connection module is used for receiving the logic control signal, and a plurality of second ends of the drive connection module are respectively connected with a plurality of distribution network automation measurement and control terminals in a one-to-one correspondence mode.
An automatic measurement and control terminal switching system of a power distribution network comprises:
the switching device of the distribution network automatic measurement and control terminal is described above;
and the plurality of distribution network automation measurement and control terminals are connected with a plurality of second ends of the driving connection modules in the switching device of the distribution network automation measurement and control terminals in a one-to-one correspondence manner.
Above-mentioned automatic measuring and control terminal's of distribution network auto change over device includes: the signal acquisition module is used for acquiring a signal set in a power distribution network line; the logic control module is connected with the signal acquisition module and used for acquiring a logic control signal according to the signal set and preset model parameters; the preset model parameter is a model parameter of one of a plurality of distribution network automation measurement and control terminals; the first end of the driving connection module is connected with the logic control module, a plurality of second ends of the driving connection module are respectively connected with a plurality of distribution network automation measurement and control terminals in a one-to-one correspondence mode, and the driving connection module is used for transmitting a signal set to the distribution network automation measurement and control terminals corresponding to the logic control signal control. The signal set in the power distribution network is combined with a plurality of model parameters which are arranged in the power distribution network automatic measurement and control terminal, a student needs to be trained to use the power distribution network automatic measurement and control terminal according to training in a training process, model parameters corresponding to the power distribution network automatic measurement and control terminal which needs to be used are called to generate logic control signals, the drive connection module responds to the logic control signals, so that the power distribution network is connected with the power distribution network automatic measurement and control terminal which needs to be used, and the signal set in the power distribution network is transmitted to the power distribution network automatic measurement and control terminal which needs to be used by the user. The problem of among the traditional technology, distribution network circuit and distribution network automation measurement and control terminal one-to-one are connected, and then need change the training inefficiency that the circuit brought at the new student in-process of training is solved.
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In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is one of schematic structural diagrams of a switching device of an automatic measurement and control terminal of a power distribution network in an embodiment;
fig. 2 is a second schematic structural diagram of a switching device of an automatic measurement and control terminal of a power distribution network according to an embodiment;
fig. 3 is a third schematic structural diagram of a switching device of an automatic measurement and control terminal of a power distribution network in an embodiment;
fig. 4 is a fourth schematic structural diagram of a switching device of an automatic measurement and control terminal of a power distribution network in an embodiment;
fig. 5 is a fifth schematic structural diagram of a switching device of an automatic measurement and control terminal of a power distribution network in an embodiment;
fig. 6 is a sixth schematic structural view of a switching device of an automatic measurement and control terminal of a power distribution network according to an embodiment;
FIG. 7 is a seventh schematic diagram of a switching device of an automatic measurement and control terminal of a power distribution network according to an embodiment
Fig. 8 is an eighth schematic structural diagram of a switching device of an automatic measurement and control terminal of a power distribution network according to an embodiment;
fig. 9 is a schematic flowchart of a switching method of an automatic measurement and control terminal of a power distribution network according to an embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
In one embodiment, as shown in fig. 1, a switching device 100 of a distribution network automation measurement and control terminal is provided, where the switching device 100 of the distribution network automation measurement and control terminal includes: a signal acquisition module 110, a logic control module 120 and a drive connection module 130. The signal acquisition module 110 is configured to acquire a signal set in a power distribution network line; the logic control module 120 is connected to the signal obtaining module 110 for obtaining a logic control signal according to the signal set and preset model parameters; the preset model parameter is a model parameter of one of a plurality of distribution network automation measurement and control terminals; the first end of the driving connection module 130 is connected with the logic control module, a plurality of second ends of the driving connection module 130 are respectively connected with a plurality of distribution network automation measurement and control terminals in a one-to-one correspondence manner, and the driving connection module 130 is used for transmitting a signal set to the distribution network automation measurement and control terminals corresponding to the logic control signal control.
Specifically, the power distribution network model parameters preset in the logic control module 120 are main technical parameters configured by different types of power distribution network automation measurement and control terminals, for example, parameters such as rated voltage, rated current, and frequency. The power distribution network model parameters preset in the logic control module 120 may be preset when leaving a factory, or new power distribution network model parameters may be added to the logic control module 120 according to requirements in the using process.
The auto-change over device of the distribution network automation measurement and control terminal of this embodiment is connected between distribution network line and a plurality of distribution network automation measurement and control terminals through indirect, realizes the switching connection when using respectively to a plurality of distribution network automation measurement and control terminals in personnel's training process, has avoided the artifical operations such as rerouting of unnecessary, has improved the efficiency of training.
In one embodiment, the signal set includes a telemetry signal, a remote control signal, and a remote signaling signal, the signal obtaining module 110 is configured to obtain a first input amount according to the telemetry signal, obtain a second input amount according to the remote control signal, and obtain a third input amount according to the remote signaling signal, and the logic control module 120 is configured to obtain a logic control signal according to the first input amount, the second input amount, the third input amount, and a preset model parameter.
The remote measuring signal, the remote control signal and the remote signaling signal respectively correspond to a remote measuring function, a remote control function and a remote signaling function of the distribution network automation measurement and control terminal. Specifically, the remote signaling function includes: remote monitoring of information like alarm status, switch position status, etc. The remote signaling signals are collected switch-on state, switch-off state, energy storage state, grounding signal, air pressure alarm signal and the like in the power distribution network; the telemetry functions include: some power analog quantity is measured and transmitted to the power of the distribution network automation main station through a communication system. Usually, the remote-measuring signals are three phase voltages (or two line voltages), three phase currents and direct-current voltages in the collected power distribution network, and in addition, corresponding active power, reactive power, power factors and the like are calculated according to the collected voltages and currents. The remote control function includes: the switch can be controlled remotely, and can be switched on or switched off. Usually, the remote control signal is a control signal sent by a distribution network automation master station in the collected power distribution network.
The signal acquisition module 120 in this embodiment may implement transmission of a signal set in a power distribution network line by acquiring a telemetry signal, a remote control signal, and a remote signaling signal in the signal set, and generating a first input amount, a second input amount, and a third input amount that correspond to the telemetry signal, the remote control signal, and the remote signaling signal one to one.
In one embodiment, as shown in fig. 2, a switching device 100 of a distribution network automation measurement and control terminal is provided. The signal obtaining module 110 includes three first isolation transformation units, and the three first isolation transformation units are configured to respectively convert the obtained telemetry signal, the remote control signal, and the remote signaling signal into a first input amount, a second input amount, and a third input amount in a one-to-one correspondence manner.
Specifically, taking fig. 2 as an example, the signal obtaining module 110 includes a telemetry signal obtaining unit 111, a remote control signal obtaining unit 112, a remote control signal obtaining unit 113, and three first isolation transformation units. The three first isolation transformation units are a first isolation transformation unit 114, a first isolation transformation unit 115 and a first isolation transformation unit 116. One end of the telemetering signal acquisition unit 111 is connected with a power distribution network line, the other end of the telemetering signal acquisition unit 111 is connected with the first isolation transformation unit 114, and the telemetering signal acquisition unit 111 is used for acquiring telemetering signals and transmitting the telemetering signals to the first isolation transformation unit 114; one end of the remote control signal acquisition unit 112 is connected with the power distribution network line, the other end is connected with the first isolation transformation unit 115, and the remote control signal acquisition unit 112 is used for acquiring a remote control signal and transmitting the remote control signal to the first isolation transformation unit 115; one end of the remote signaling signal acquisition unit 113 is connected to the power distribution network line, the other end is connected to the first isolation transformation unit 116, and the remote signaling signal acquisition unit 113 is configured to acquire a remote signaling signal and transmit the remote signaling signal to the first isolation transformation unit 116.
The connection modes of the first end of the first isolation transformation unit 114, the first isolation transformation unit 115 and the first end of the first isolation transformation unit 116 are defined as above, and are respectively connected with the telemetry signal acquisition unit 111, the remote control signal acquisition unit 112 and the remote signaling signal acquisition unit 113 in a one-to-one correspondence manner, while the second end of the first isolation transformation unit 111 is connected with the logic control module 120; the first isolation transformation unit 111 is used for performing photoelectric isolation on the telemetry signal and performing level conversion to generate a first input value; the second end of the first isolation transformation unit 115 is connected with the logic control module 120, and the first isolation transformation unit 115 is configured to perform relay isolation on the remote control signal and perform level conversion to generate a second input value; the second end of the first isolation transforming unit 116 and the logic control module 120 are connected to the first isolation transforming unit 116 for performing optoelectronic isolation on the remote signaling signal, and performing level conversion to generate a third input amount.
In the embodiment, good electrical insulation capability and interference resistance can be achieved through the isolation and level conversion of the isolation transformation unit. Under the condition of ensuring the unidirectional transmission of signals, the reliability of the switching device of the automatic measurement and control terminal of the power distribution network is improved.
In one embodiment, as shown in fig. 3, a switching device 100 of a distribution network automation measurement and control terminal is provided. The driving connection module 130 includes a first driving unit 131 and a switching unit 132. The first driving unit 131 is connected to the logic control module 120, and the first driving unit 131 is configured to receive the logic control signal and generate a switching unit driving signal; the first end of the switch unit 132 is connected with the first driving unit 131, the second end of the switch unit 132 is connected with the plurality of distribution network automation measurement and control terminals in a one-to-one correspondence manner, and the switch unit 132 is used for responding to a switch unit driving signal to control the connection and disconnection of the first driving unit 131 and one of the distribution network automation measurement and control terminal connection loops.
The switch unit may be a single-pole double-throw switch or a single-pole multiple-throw switch, and it is understood that the switch unit in this embodiment is not limited to the above example, and may also be another switch having a plurality of control points, where the specific number of the control points may be determined according to the number of the connected distribution network automation measurement and control terminals. Specifically, when one of the distribution network automatic measurement and control terminals is connected to the loop of the driving unit 131, the distribution network signal set acquired by the signal acquisition module 110 can be simultaneously transmitted to the distribution network automatic measurement and control terminal connected to the current loop, so as to complete the switching connection and the importing operation of the signal set.
In this embodiment, the switching connection of the distribution network automation measurement and control terminal is selectively realized through the selective conduction loop of the first driving unit 131 and the driving switch unit 132.
In one embodiment, as shown in fig. 4, a switching device 100 of a distribution network automation measurement and control terminal is provided. The driving connection module 130 includes a plurality of driving paths 130N. The first end of each driving channel 130N is connected with the logic control module 120, and the second end of each driving channel 130N is connected with a plurality of distribution network automation measurement and control terminals in a one-to-one correspondence manner; the logic control signal is used to control the conduction of one of the driving paths 130N.
Specifically, taking fig. 4 as an example, the driving connection module 130 includes four driving paths 130N, first ends of the four driving paths 130N are all connected to the logic control module 120, and second ends of the four driving paths 130N are respectively connected to the distribution network automation measurement and control terminal of the type a, the distribution network automation measurement and control terminal of the type B, the distribution network automation measurement and control terminal of the type C, and the distribution network automation measurement and control terminal of the type D in a one-to-one correspondence manner. In order to make the drawings concise, the multiple models of the distribution network automation measurement and control terminals in the embodiment are respectively represented by "a type", "B type", "C type", and "D type". The on and off of each driving path 130N can be programmed, and the logic control signal can generate a corresponding logic control signal according to the corresponding programming of the number of driving paths 130N. For example, when a B-type distribution network automation measurement and control terminal connection loop is required to be turned on, the logic control signal may be a high level signal of a second short period in one period, for example, one period is 40ms, 10ms is one short period, and the low level signal is "0", and the high level signal is "1", and then the signal of the second short period when the high level signal is "0100". When the driving channel 130N connected to the B-type distribution network automation measurement and control terminal receives the logic control signal of "0100", the connection loop is turned on, and when the other driving channels 130N receive the logic control signal of "0100", the connection loop is kept turned off.
In this embodiment, by connecting a plurality of programmable driving paths, when receiving a corresponding logic control signal, the automatic connection switching can be rapidly completed.
In one embodiment, as shown in fig. 5, a switching device 100 of a distribution network automation measurement and control terminal is provided. Taking one of the driving paths 130N as an example, it should be noted that the connection manner of the other driving paths 130N in this embodiment is also the same, and specifically, see fig. 5. The drive path 130N includes: a second driving unit 133 and a first relay 134. The second driving unit 133 is connected to the logic control module 120, and is configured to receive the logic control signal and generate a first relay control signal; first relay 134 one end is connected with second drive unit 133, and the other end is connected with distribution network automation measurement and control terminal, and first relay 134 is used for responding to first relay control signal to the switching on and the disconnection of first relay 134 and distribution network automation measurement and control terminal return circuit are controlled.
Specifically, the switching device 100 of the distribution network automation measurement and control terminal in this embodiment includes four driving paths as an example. Therefore, four second driving units 133 and four first relays 134 are included in the drawing. It is understood that the four driving paths included in the present embodiment are only for example and are not intended to limit the scope of the present application.
In one embodiment, as shown in fig. 6, a switching device 100 of a distribution network automation measurement and control terminal is provided. The second driving unit 133 includes a second relay 1331 and a switching transistor 1332. The second relay 1331 is connected with the logic control module, and the second relay 1331 is used for receiving the logic control signal and generating a switching triode control signal; the switching transistor 1332 has one end connected to the second relay 1331 and the other end connected to the first relay 134, and the switching transistor 1332 is configured to generate a first relay control signal in response to a transistor control signal. The switching device 100 of the distribution network automation measurement and control terminal in this embodiment includes four driving paths 130N as an example. Thus, four second relays 1331 and four switching transistors 1332 are included in the figure. It is understood that four automation measurement and control terminals may be connected in this embodiment for example only, and are not used to limit the scope of the present application.
The embodiment utilizes the characteristics of a switch triode, such as long service life, safety, reliability, no mechanical wear, high switching speed, small size and the like, to achieve the purposes of fast switching and volume reduction of the switching device of the distribution network automation measurement and control terminal.
In one embodiment, as shown in fig. 7, a switching device 100 of a distribution network automation measurement and control terminal is provided. The driving connection module 130 further includes a plurality of second isolation transformation units 135. The switching device 100 of the distribution network automation measurement and control terminal in this embodiment includes four driving paths 130N as an example. Thus, four second isolated transform units 135 are included in the figure. It is understood that the four driving paths 130N are included in the present embodiment for example only, and are not intended to limit the scope of the present application. One end of each second isolation and transformation unit 135 is connected to the logic control module 120, and the other end of each second isolation and transformation unit 135 is connected to the second driving unit 133 in a one-to-one correspondence manner, and the second isolation and transformation unit 135 is configured to isolate the logic control signal and convert the logic control signal into a fourth input value to control the opening and closing of the second relay 1331.
The embodiment can realize signal isolation through isolation and level conversion of the isolation conversion unit, and plays roles in protecting the device and filtering noise.
In one embodiment, the logic control module comprises: the controller CPU manages the chip and the peripheral circuits. Wherein, controller CPU management chip is STM32 level chip, controller CPU management chip is used for the telemetering measurement signal according to above-mentioned input signal collection module 110 collection, remote control signal, the detection that the remote control signal goes on, and the model that combines the distribution network automation measurement and control terminal of user selection forms the judgement logic, and carry out the automatic programming definition to drive link module, generate logic control signal, in order to realize the control to drive link module, make drive link module be connected to the distribution network automation measurement and control terminal of user selection.
The peripheral circuits refer to a fundamental frequency circuit, a reset circuit, a power supply circuit and the like, and are necessary auxiliary circuit parts for the normal work of the controller CPU management chip, and are not described herein again.
In one embodiment, as shown in fig. 8, a switching device 100 of a distribution network automation measurement and control terminal is provided. In this embodiment, the switching device 100 of the distribution network automation measurement and control terminal is exemplified by connecting four distribution network automation measurement and control terminals. It is understood that four automation measurement and control terminals may be connected in this embodiment for example only, and are not used to limit the scope of the present application. The switching device 100 of the distribution network automation measurement and control terminal comprises: the remote control system comprises a telemetry signal acquisition unit 111, a remote control signal acquisition unit 112, a remote control signal acquisition unit 113, a first isolation transformation unit 114, a first isolation transformation unit 115, a first transformation unit 116, a logic control module 120, a second isolation transformation unit 135, a second relay 1331, a switch triode 1332 and a first relay 134.
In this embodiment, please refer to the connection mode in the switching device 100 of the distribution network automation measurement and control terminal, which is not described herein.
The embodiment can realize the switching connection when a plurality of distribution network automation measurement and control terminals are used respectively, avoids unnecessary operations such as manual line changing and the like, and improves the training efficiency.
In one embodiment, as shown in fig. 9, a method for switching an automatic measurement and control terminal of a power distribution network is provided, where the method includes:
and S100, acquiring a signal set in the power distribution network line.
The signal set comprises a remote measuring signal, a remote control signal and a remote signaling signal, and the signal set is a signal set required to be received by the automatic measurement and control terminal of the power distribution network.
Step S200, acquiring a logic control signal according to the signal set and preset model parameters; the preset model parameters are parameters of a model of one of the automatic measurement and control terminals of the power distribution network.
And S300, controlling the drive connection module to transmit the signal set to the distribution network automatic measurement and control terminals corresponding to the logic control signal control, wherein the first end of the drive connection module is used for receiving the logic control signal, and a plurality of second ends of the drive connection module are respectively connected with the distribution network automatic measurement and control terminals in a one-to-one correspondence manner.
It should be understood that, although the steps in the flowchart of fig. 9 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 9 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.
In one embodiment, a system for switching an automatic measurement and control terminal of a power distribution network is provided, which includes: the switching device 100 of the distribution network automation measurement and control terminal and the plurality of distribution network automation measurement and control terminals are described above. And the plurality of distribution network automatic measurement and control terminals are connected with a plurality of second ends of the driving connection modules in the switching device of the distribution network automatic measurement and control terminals in a one-to-one correspondence manner. The efficiency of training a new student to use the automatic measurement and control terminal of the power distribution network is achieved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a switching device of distribution network automation measurement and control terminal which characterized in that, the device includes:
the signal acquisition module is used for acquiring a signal set in a power distribution network line;
the logic control module is connected with the signal acquisition module and used for acquiring a logic control signal according to the signal set and preset model parameters; the preset model parameter is a model parameter of one of a plurality of distribution network automation measurement and control terminals;
drive linking module, drive linking module's first end with logic control module connects, a plurality of second ends of drive linking module are connected with a plurality of distribution network automation measurement and control terminal one-to-one respectively, drive linking module be used for with signal set transmission extremely with the distribution network automation measurement and control terminal that logic control signal control corresponds.
2. The apparatus of claim 1, wherein the signal set comprises a telemetry signal, a remote control signal, and a remote signaling signal, the signal obtaining module is configured to obtain a first input according to the telemetry signal, obtain a second input according to the remote control signal, and obtain a third input according to the remote signaling signal, and the logic control module is configured to obtain a logic control signal according to the first input, the second input, the third input, and the preset model parameter.
3. The apparatus according to claim 2, wherein the signal obtaining module includes three first isolated transform units, and the three first isolated transform units are configured to respectively convert the obtained telemetry signal, the remote control signal, and the remote signaling signal into the first open amount, the second open amount, and the third open amount in a one-to-one correspondence manner.
4. The apparatus of claim 1, wherein the drive connection module comprises:
the first driving unit is connected with the logic control module and used for receiving the logic control signal and generating a switching unit driving signal;
the switch unit, first end with first drive unit connects, and the second end is with a plurality of distribution network automation measurement and control terminal one-to-one is connected, is used for responding to switch unit drive signal is with control first drive unit and one of them switch on and break off of distribution network automation measurement and control terminal connecting circuit.
5. The apparatus of claim 1, wherein the drive connection module comprises:
the first end of each driving channel is connected with the logic control module, and the second end of each driving channel is respectively connected with the plurality of distribution network automatic measurement and control terminals in a one-to-one correspondence manner; wherein the logic control signal is used for conducting one of the driving paths.
6. The apparatus of claim 5, wherein the drive path comprises:
the second driving unit is connected with the logic control module and used for receiving the logic control signal and generating a first relay control signal;
first relay, one end with the second drive unit is connected, the other end with distribution network automation measurement and control terminal connects, first relay be used for responding to first relay control signal, in order to control first relay with switching on and breaking off in distribution network automation measurement and control terminal return circuit.
7. The apparatus of claim 6, wherein the second driving unit comprises:
the second relay is connected with the logic control module and used for receiving the logic control signal and generating a switching triode control signal;
and one end of the switch triode is connected with the second relay, the other end of the switch triode is connected with the first relay, and the switch triode is used for responding to the triode control signal to generate a first relay control signal.
8. The apparatus of claim 7, wherein the drive connection module further comprises:
and one end of each second isolation conversion unit is connected with the logic control module, the other end of each second isolation conversion unit is connected with the second driving units in a one-to-one correspondence manner, and the second isolation conversion units are used for isolating the logic control signals and converting the logic control signals into fourth input values so as to control the opening and closing of the second relays.
9. A switching method for an automatic measurement and control terminal of a power distribution network comprises the following steps:
acquiring a signal set in a power distribution network line;
acquiring a logic control signal according to the signal set and preset model parameters; the preset model parameters are parameters of a model of one of a plurality of distribution network automation measurement and control terminals;
control drive linking module will the signal set transmit to with the distribution network automation measurement and control terminal that logic control signal control corresponds, drive linking module's first end is used for receiving logic control signal, a plurality of second ends of drive linking module are connected with a plurality of distribution network automation measurement and control terminal one-to-one respectively.
10. The utility model provides a distribution network automation measurement and control terminal switched systems which characterized in that includes:
the switching device of the distribution network automation measurement and control terminal of any one of claims 1 to 8;
and the plurality of distribution network automatic measurement and control terminals are connected with the plurality of second ends of the driving connection modules in the switching device of the distribution network automatic measurement and control terminals in a one-to-one correspondence manner.
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| CN114094696B (en) | 2024-06-14 |
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