CN111130217B - Secondary equipment control system and secondary equipment system - Google Patents
Secondary equipment control system and secondary equipment system Download PDFInfo
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- CN111130217B CN111130217B CN201911355797.6A CN201911355797A CN111130217B CN 111130217 B CN111130217 B CN 111130217B CN 201911355797 A CN201911355797 A CN 201911355797A CN 111130217 B CN111130217 B CN 111130217B
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- General Physics & Mathematics (AREA)
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Abstract
The present application relates to a secondary device control system and a secondary device system. The secondary equipment control system comprises a plurality of acquisition equipment, a switch and a plurality of communication equipment. The input end of the acquisition equipment is used for connecting the secondary equipment, and the acquisition equipment is used for acquiring the node signal of the secondary equipment and converting the node signal into a digital signal. The plurality of communication devices are respectively in communication connection with the plurality of acquisition devices and the switch and used for transmitting the digital signals to the switch. According to the embodiment of the application, the acquisition equipment, the switch and the communication equipment are arranged, and the node signals in the secondary equipment are finally transmitted to the switch. The signal connection between different secondary devices is realized, and therefore the locking joint control between different secondary devices is realized. The secondary equipment control system provided by the embodiment of the application solves the technical problem that the stability of the conventional secondary equipment system is low, and achieves the technical effect of improving the stability of the secondary equipment system.
Description
Technical Field
The application relates to the technical field of power grid control, in particular to a secondary equipment control system and a secondary equipment system.
Background
The secondary equipment is of various types, and a secondary equipment system in a power grid is more complicated. In the secondary equipment, some equipment has a lockout joint control function, so that the action of the second secondary equipment needs to be controlled through an output signal of the first secondary equipment after the action of the first secondary equipment. In the existing power grid system, the locking joint control among the secondary devices is mainly realized by cables, and signals are transmitted through the cables to realize the locking joint control among different secondary devices. This requires a large number of cables to be laid in practice, for example 8 secondary devices with at least 8 control points, with a minimum of 28 cables being required to splice the cables two by two. Therefore, a large number of cables are needed in actual work, a field wiring system is complicated, once one cable fails, the locking joint control in the whole secondary equipment system cannot be normally performed, and the stability of the conventional secondary equipment system is low.
Disclosure of Invention
In view of this, it is necessary to provide a secondary equipment control system and a secondary equipment system in order to solve the problem of low stability of the secondary equipment system.
A secondary device control system comprising:
the system comprises a plurality of acquisition devices, a signal processing device and a signal processing device, wherein the input end of each acquisition device is used for being connected with secondary equipment, and the acquisition devices are used for acquiring node signals of the secondary equipment and converting the node signals into digital signals;
a switch;
and the plurality of communication devices are respectively in communication connection with the plurality of acquisition devices and the switch and are used for transmitting the digital signals to the switch.
In one embodiment, each of the acquisition devices comprises:
the input end of the switching value acquisition equipment is used for being connected with the secondary equipment, the output end of the switching value acquisition equipment is in communication connection with the communication equipment, and the switching value acquisition equipment is used for acquiring the switching value of the secondary equipment;
the position contact collection equipment, the input of position contact collection equipment is used for connecting the secondary equipment, the output of position contact collection equipment with communication equipment communication connection, position contact collection equipment is used for gathering the position contact of secondary equipment.
In one embodiment, each of the acquisition devices further comprises:
the input end of the temperature acquisition equipment is used for being connected with the secondary equipment, and the output end of the temperature acquisition equipment is in communication connection with the communication equipment.
In one embodiment, the method further comprises the following steps:
and the alarm equipment is in communication connection with the switch and is used for sending out an alarm signal when the temperature of the secondary equipment exceeds a preset threshold value.
In one embodiment, the communication device is connected with the switch through wireless communication.
In one embodiment, the communication device is communicatively coupled to the switch via an ethernet communication link.
In one embodiment, the method further comprises the following steps:
the input end of the controller is in communication connection with the switch, the output end of the controller is in communication connection with the secondary equipment, and the controller is used for controlling linkage and locking between the secondary equipment.
In one embodiment, the method further comprises the following steps:
a display device communicatively coupled to the controller.
In one embodiment, the method further comprises the following steps:
a memory, communicatively coupled to the switch, for storing the digital signal.
A secondary device system comprising:
the secondary appliance control system as described above;
and the secondary equipment is connected with the acquisition equipment.
The secondary equipment control system comprises a plurality of acquisition equipment, a switch and a plurality of communication equipment. This application embodiment is through setting up collection equipment, switch and a plurality of communication equipment will in the secondary equipment node signal acquisition and processing after transmit extremely the switch can realize the difference signal connection and control between the secondary equipment to it is different to have reached the realization the purpose of shutting joint control between the secondary equipment. The embodiment of the application provides secondary equipment control system has solved the low technical problem of stability of present secondary equipment system, has reached and has improved the technological effect of secondary equipment system stability.
Drawings
Fig. 1 is a schematic structural diagram of a secondary device control system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a secondary device control system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an acquisition device of a secondary device control system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a secondary device control system according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a secondary device control system according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a secondary device control system according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a secondary device system according to an embodiment of the present application.
Description of reference numerals:
10. a secondary equipment control system; 100. collecting equipment; 110. a switching value acquisition device; 120. a position contact acquisition device; 130. a temperature acquisition device; 140. an alarm device; 200. a switch; 300. a communication device; 400. a controller; 500. a display device; 600. a memory; 20. a secondary equipment system; 21. and (5) secondary equipment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, a secondary equipment control system and a secondary equipment system of the present application are further described in detail below by embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 and 2, an embodiment of the present application provides a secondary device control system 10, including: a plurality of acquisition devices 100, a switch 200, and a plurality of communication devices 300.
The input end of each acquisition device 100 is used for connecting a secondary device 21, and the acquisition device 100 is used for acquiring a node signal of the secondary device 21 and converting the node signal into a digital signal. The acquisition device 100 may be implemented by a voltage acquisition device, a current acquisition device, an electric field acquisition device, a signal acquisition device, or by combining the voltage acquisition device, the current acquisition device, the electric field acquisition device, the signal acquisition device, and the like with an analog-to-digital conversion circuit. In this embodiment, the acquisition device 100 is not limited at all, and only needs to realize the functions of acquiring the node signal of the secondary device 21 and converting the node signal into a digital signal.
The switch 200 is a network device for forwarding electrical or optical signals, and the switch 200 can provide an exclusive electrical signal path for any two network nodes accessing the switch 200. In this embodiment, the switch 200 is configured to send the digital signal output by the acquisition device 100 to the preset secondary device 21. The preset secondary device 21 is the next secondary device 21 to be controlled by the node signal. The present embodiment is not particularly limited, and the present embodiment is specifically set according to the actual secondary equipment system 20 and the actual working requirement. The switch 200 in this embodiment may be any type of switch 200, and the switch 200 in this embodiment is not limited at all, and only needs to satisfy the function of exchanging the digital signal between different secondary devices 21.
The plurality of communication devices 300 are respectively connected with the plurality of acquisition devices 100 and the switch 200 in a communication manner, and are used for transmitting the digital signals to the switch 200. The communication device 300 is used to implement a communication connection between the collection device 100 and the switch 200, and the communication device 300 may implement wired communication, such as electric cable, optical cable, etc. The communication device 300 may also be a wireless communication, such as: wifi, bluetooth, zigbee, ethernet communication, etc. The communication device 300 is not limited in this embodiment, and only the communication connection between the collection device 100 and the switch 200 is required to be realized.
The working principle of the secondary device control system 10 provided by the embodiment of the application is as follows:
the secondary device control system 10 according to the present embodiment includes a plurality of collection devices 100, a switch 200, and a plurality of communication devices 300. The acquisition equipment 100 is connected with the secondary equipment 21, acquires a node signal of the secondary equipment 21, and converts the node signal into a digital signal. The digital signal is transmitted to the exchange 200 through the communication device 300. The digital signal is used as the preset control signal of the secondary device 21, the switch 200 transmits the digital signal to the preset secondary device 21, and the preset secondary device 21 can receive the digital signal to work. In this embodiment, the secondary device control system 10 may implement signal transmission between the secondary devices 21 through the plurality of acquisition devices 100, the switch 200, and the plurality of communication devices 300.
The secondary device control system 10 according to the present embodiment includes a plurality of collection devices 100, a switch 200, and a plurality of communication devices 300. In this embodiment, by setting the acquisition device 100, the switch 200, and the plurality of communication devices 300, the node signals in the secondary device 21 are acquired and processed and then transmitted to the switch 200, so that the difference between the signals in the secondary device 21 can be realized, and the purpose of realizing the different locking joint control between the secondary devices 21 is achieved. The secondary device control system 10 provided in this embodiment solves the technical problem that the stability of the secondary device system 20 is low at present, and achieves the technical effect of improving the stability of the secondary device system 20.
Referring to fig. 3 and 4, in an embodiment of the present application, a secondary device control system 10 is provided, where each of the collection devices 100 includes: switching value acquisition device 110, position contact acquisition device 120, temperature acquisition device 130, and alarm device 140.
The input end of the switching value acquisition device 110 is used for connecting the secondary device 21, the output end of the switching value acquisition device 110 is in communication connection with the communication device 300, and the switching value acquisition device 110 is used for acquiring the switching value of the secondary device 21. The switching value refers to the acquisition and output of a discontinuous signal, and in this embodiment, the switching value refers to the connection and disconnection of a contact in each control node in the secondary device 21. In this embodiment, the switching value may refer to "on" and "off" outputs of the relay inside the secondary device 21. The switching value acquisition device 110 may adopt a 16-point, 24/48VDC type switching module of S7-1500, or any other type of switching value acquisition device 110, and this embodiment does not limit the switching value acquisition device 110 at all, and only needs to meet the requirement that the switching value of the secondary device 21 can be acquired.
The input end of the position contact point collection device 120 is used for connecting the secondary device 21, the output end of the position contact point collection device 120 is in communication connection with the communication device 300, and the position contact point collection device 120 is used for collecting the position contact points of the secondary device 21. The location contacts, i.e. each control connection point of the secondary device 21 or other connection points that need to be monitored etc. The position contact point collecting device 120 may be implemented by software, or may be implemented by hardware, for example, the operating state or the position state of each connection point of the secondary device 21 may be determined by analyzing the current, the voltage, the electric field, and the like of each connection point of the secondary device 21.
The input end of the temperature acquisition device 130 is used for connecting the secondary device 21, and the output end of the temperature acquisition device 130 is in communication connection with the communication device 300. The temperature acquisition device 130 may be implemented by a temperature sensor, a temperature measuring instrument, or the like. The temperature acquisition module device may comprise one or more of the temperature sensor or the temperature measuring instrument, etc. In this embodiment, the temperature acquisition device 130 is not limited at all, and only the temperature acquisition function of the secondary device 21 may be implemented.
The alarm device 140 is in communication connection with the switch 200, and the alarm device 140 is configured to send an alarm signal when the temperature of the secondary device 21 exceeds a preset threshold. The alarm device 140 is implemented by an alarm circuit, an alarm chip, etc., and the alarm signal may be an optical signal, a sound signal, or any other signal that is easy for a worker to recognize, so that the alarm signal can be found in time and measures can be taken in time. In this embodiment, the alarm device 140 is not limited at all, and only needs to implement a function of sending an alarm signal when the temperature of the secondary device 21 exceeds a preset threshold.
In one embodiment, the communication device 300 is connected to the switch 200 through wireless communication, so that the problem of network line arrangement can be effectively avoided, the secondary device control system 10 is simplified, and the security of the secondary device control system 10 is improved. In a specific embodiment, the communication device 300 is connected to the switch 200 via ethernet communication. The ethernet belongs to a baseband bus local area network, and a passive cable can be used as a bus to transmit data frames, thereby improving the applicability of the secondary device control system 10 in this embodiment.
Referring to fig. 5 and 6, in an embodiment, the secondary device control system 10 further includes: a controller 400, a display device 500, and a memory 600.
The input end of the controller 400 is in communication connection with the switch 200, the output end of the controller 400 is in communication connection with the secondary equipment 21, and the controller 400 is used for controlling linkage and locking between the secondary equipment 21. The controller 400 may be any one of a computer, a server, or a mobile phone, and the controller 400 is not limited in this embodiment, and only the functions of controlling the linkage and locking between the secondary devices 21 may be satisfied.
The display device 500 is in communication connection with the controller 400, and is configured to display the linkage and locking states between the secondary devices 21. The display device 500 may be an LED display, a touch display, or the like, and the display device 500 is not limited in this embodiment, and only the functions of displaying the linkage and the locking state between the secondary devices 21 may be implemented.
The memory 600 is communicatively connected to the switch 200 for storing the digital signal. The memory 600 may be any of a removable usb disk, a network disk, a memory stick, an SD memory card, and the like, and the memory 600 is not limited in this embodiment, and only needs to realize the function of storing the digital signal.
Referring to fig. 7, an embodiment of the present application provides a secondary device system 20, including: the secondary device control system 10 and the secondary device 21.
The advantageous effects of the secondary device control system 10 are described in detail in the above embodiments, and are not described herein again. The secondary device 21 is connected to the acquisition device 100.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within 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 claims. 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. A secondary device control system, characterized by comprising:
the system comprises a plurality of acquisition devices (100), wherein the input end of each acquisition device (100) is used for being connected with a secondary device (21), and each acquisition device (100) is used for acquiring a node signal of the secondary device (21) and converting the node signal into a digital signal which is used as a control signal of the next secondary device (21) to be controlled; wherein each acquisition device (100) comprises:
the input end of the switching value acquisition device (110) is used for being connected with the secondary device (21), the output end of the switching value acquisition device (110) is in communication connection with a communication device (300), and the switching value acquisition device (110) is used for acquiring the switching value of the secondary device (21); the switching value is the switching on and off of contacts in each control node in the secondary device (21);
the input end of the position contact point acquisition device (120) is used for being connected with the secondary device (21), the output end of the position contact point acquisition device (120) is in communication connection with the communication device (300), and the position contact point acquisition device (120) is used for acquiring the position contact points of the secondary device (21), analyzing the current, voltage and electric field of each position contact point and determining the working state or position state of each connection point of the secondary device (21); the location contacts comprise each control connection point or connection point to be monitored on the secondary device (21);
the switch (200) is used for sending the digital signal output by the acquisition equipment (100) to preset secondary equipment (21), wherein the preset secondary equipment (21) is the next secondary equipment (21) to be controlled by a node signal;
a plurality of communication devices (300) respectively in communication connection with the plurality of acquisition devices (100) and the switch (200) for conveying the digital signals to the switch (200); and the communication equipment (300) is connected with the switch (200) through wireless communication.
2. The secondary device control system according to claim 1, wherein the collecting device (100) is a voltage collecting device or a current collecting device.
3. The secondary equipment control system according to claim 1, wherein each of the collection devices (100) further includes:
the input end of the temperature acquisition device (130) is used for being connected with the secondary device (21), and the output end of the temperature acquisition device (130) is in communication connection with the communication device (300).
4. The secondary device control system according to claim 3, characterized by further comprising:
the alarm device (140) is in communication connection with the switch (200), and the alarm device (140) is used for sending out an alarm signal when the temperature of the secondary device (21) exceeds a preset threshold value.
5. The secondary device control system according to claim 1, wherein the communication device (300) is connected to the switch (200) by ethernet communication.
6. The secondary device control system according to claim 5, wherein the ethernet belongs to a baseband bus local area network, and the ethernet uses a passive cable as a bus to transmit data frames.
7. The secondary device control system according to claim 1, characterized by further comprising:
the input end of the controller (400) is in communication connection with the switch (200), the output end of the controller (400) is in communication connection with the secondary equipment (21), and the controller (400) is used for controlling linkage and locking between the secondary equipment (21).
8. The secondary device control system according to claim 7, characterized by further comprising:
a display device (500) communicatively coupled to the controller (400).
9. The secondary device control system according to claim 1, characterized by further comprising:
a memory (600) communicatively coupled to the switch (200) for storing the digital signal.
10. A secondary device system, comprising:
the secondary equipment control system (10) of any one of claims 1-9;
the secondary equipment (21) is connected with the acquisition equipment (100).
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| CN201911355797.6A CN111130217B (en) | 2019-12-25 | 2019-12-25 | Secondary equipment control system and secondary equipment system |
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| CN201911355797.6A CN111130217B (en) | 2019-12-25 | 2019-12-25 | Secondary equipment control system and secondary equipment system |
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| CN111130217B true CN111130217B (en) | 2022-03-04 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205247185U (en) * | 2015-12-08 | 2016-05-18 | 中国西电电气股份有限公司 | Secondary control system of water cooling transformer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895153A (en) * | 2010-07-20 | 2010-11-24 | 南京胜太迪玛斯电力系统有限公司 | Intelligent transformer substation computer monitoring anti-misoperation system |
| CN102916407A (en) * | 2012-08-23 | 2013-02-06 | 山西省电力公司大同供电分公司 | Relay protection and fault information management system for regional power grid |
| CN203850922U (en) * | 2014-05-07 | 2014-09-24 | 国家电网公司 | Secondary device system with advantages of stable operation and convenient monitoring |
| CN103984877A (en) * | 2014-06-11 | 2014-08-13 | 国家电网公司 | Evaluation system and method for running quality of secondary equipment of electric power system |
| CN104216361A (en) * | 2014-08-11 | 2014-12-17 | 长园深瑞继保自动化有限公司 | State monitoring system for secondary device |
| CN106952463B (en) * | 2016-01-06 | 2023-05-12 | 珠海优特电力科技股份有限公司 | State acquisition system and method for electric power secondary equipment |
| CN206847005U (en) * | 2017-04-12 | 2018-01-05 | 河南徐辉建筑工程设计有限公司 | A kind of control system of total heat exchanger |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205247185U (en) * | 2015-12-08 | 2016-05-18 | 中国西电电气股份有限公司 | Secondary control system of water cooling transformer |
Non-Patent Citations (2)
| Title |
|---|
| 220kV智能变电站设计方案优化研究;晋海斌;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20131215;第5-10、33-47、51-61页，图4-1、4-4、5-7 * |
| 符合IEC61850的智能变电站测试系统的设计及其实现;冯世林;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20130515;全文 * |
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