CN112379708A - Distribution automation terminal - Google Patents
Distribution automation terminal Download PDFInfo
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- CN112379708A CN112379708A CN202011127003.3A CN202011127003A CN112379708A CN 112379708 A CN112379708 A CN 112379708A CN 202011127003 A CN202011127003 A CN 202011127003A CN 112379708 A CN112379708 A CN 112379708A
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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Abstract
本发明公开了一种配电自动化终端，包括CPU主板、加热模块、除湿模块、人机交互模块、电源模块、交换机、总线板和交流板卡，其中所述CPU主板上集成有主处理器和副处理器，所述副处理器分别和加热模块以及除湿模块相连接；所述加热模块用于提高配电自动化终端设备内的温度，所述除湿模块用于控制配电自动化终端设备内的湿度；所述电源模块与CPU主板电性连接，为整个配电自动化终端设备提供电能；所述主处理器通过总线板分别与人机交互模块、交流板卡、和交互机相连接；所述副处理器与总线板之间相互连接，实现配电自动化终端设备内的温度和湿度的数据传输。本发明所述的配电自动化终端，能够大大降低故障率，提高配电自动化终端的可靠性。
The invention discloses a power distribution automation terminal, comprising a CPU mainboard, a heating module, a dehumidification module, a human-computer interaction module, a power supply module, a switch, a bus board and an AC board, wherein the CPU mainboard is integrated with a main processor and a A secondary processor, which is respectively connected with a heating module and a dehumidification module; the heating module is used to increase the temperature in the distribution automation terminal equipment, and the dehumidification module is used to control the humidity in the distribution automation terminal equipment The power supply module is electrically connected with the CPU main board to provide power for the entire power distribution automation terminal equipment; the main processor is respectively connected with the human-computer interaction module, the AC board, and the interactive machine through the bus board; the auxiliary The processor and the bus board are connected to each other to realize the data transmission of temperature and humidity in the distribution automation terminal equipment. The distribution automation terminal of the present invention can greatly reduce the failure rate and improve the reliability of the distribution automation terminal.
Description
Technical Field
The invention relates to the field of distribution automation, in particular to a distribution automation terminal.
Background
The distribution automation terminal is an important component for constructing an intelligent distribution network and realizing distribution network automation, is a general name of various remote monitoring and control units installed on the distribution network, is mainly used for monitoring and controlling a distribution line and distribution equipment in real time, realizes fault detection and fault positioning of the distribution line, and provides basis for fault isolation of a distribution automation system and recovery power supply of a non-fault area. In recent years, with the development of a smart distribution network in a well-spraying manner, a plurality of problems to be solved are brought, and the problems of various structural forms, poor interchangeability, low reliability, large maintenance engineering quantity and the like of a distribution automation terminal are particularly prominent. With the successive release of documents such as "typical design of distribution automation equipment", "technical specification of distribution automation terminal" and the like by the national grid company, these document plans guide the development direction of the distribution automation terminal in the next 10 years: the structure is miniaturized, the interface is standardized, the configuration flexibility is activated, the function modularization is realized, and the maintenance is simplified.
The humidity of many indoor places is very high, and the phenomenon of getting damp is serious, and the distribution room humidity of partly building in the underground often is bigger. The humid air can not only cause the cable and other primary equipment in the power distribution room to generate the water tree aging phenomenon, but also cause the cable to be punctured; moist air can easily damp secondary equipment such as a distribution automation terminal and the like, short circuit is caused, fault power failure is caused, and loss caused by the short circuit is immeasurable. At present, two moisture-proof and dehumidifying methods are widely applied to a distribution automation terminal, namely: adhering dehumidifying cotton with good performance on the inner wall of the distribution automation terminal, absorbing open water on the inner wall of the distribution automation terminal and keeping the interior free of the open water; the second method comprises the following steps: important plate and terminal row adopt the sealant to carry out sealing process in the distribution automation terminal, keep apart it with the external world, avoid moisture in the air, filth etc. to cause its short circuit. Both methods are not effective in moisture protection and dehumidification.
When the distribution automation terminal is used in a severe cold area, equipment faults often occur due to low ambient temperature, controllability and online level of the distribution automation terminal are seriously affected, and particularly, the fault rate of the distribution automation terminal obviously rises in an environment with suddenly-reduced air temperature, so that great potential safety hazards are brought to operation of a power distribution network.
In view of the above, the present inventors propose a distribution automation terminal.
Disclosure of Invention
The invention mainly aims to provide a power distribution automation terminal which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a distribution automation terminal comprises a CPU mainboard, a heating module, a dehumidification module, a man-machine interaction module, a power supply module, a switch, a bus board and an AC board card, wherein
A main processor and an auxiliary processor are integrated on the CPU mainboard, and the auxiliary processor is respectively connected with the heating module and the dehumidifying module;
the heating module is used for increasing the temperature in the distribution automation terminal equipment, and the dehumidifying module is used for controlling the humidity in the distribution automation terminal equipment;
the power supply module is electrically connected with the CPU mainboard and provides electric energy for the whole power distribution automation terminal equipment;
the main processor is respectively connected with the human-computer interaction module, the alternating current board card and the interaction machine through the bus board;
the secondary processor is connected with the bus board, and data transmission of temperature and humidity in the power distribution automation terminal equipment is achieved.
Preferably, the dehumidification module comprises a humidity sensor, a data collector and a dehumidifier, the dehumidifier is installed on the lower portion of the inner cavity of the power distribution automation terminal equipment and electrically connected with the humidity sensor, a highest humidity threshold and a lowest humidity threshold are preset on the humidity sensor, the data collector is electrically connected with the humidity sensor and the auxiliary processor, and the collected real-time humidity data are transmitted to the human-computer interaction module through the auxiliary processor and the bus board.
Preferably, the dehumidifier is started when the humidity is greater than a maximum humidity threshold preset by a humidity sensor; or, the dehumidifier is closed when the humidity is less than the lowest humidity threshold preset by the humidity sensor.
Preferably, the heating module comprises a temperature sensor, a data processor and an electric heating plate, the electric heating plate is electrically connected with the temperature processor and used for increasing the temperature in the distribution automation terminal equipment, the temperature sensor is electrically connected with the electric heating plate and the secondary processor and used for transmitting real-time temperature data in the distribution automation terminal equipment to the human-computer interaction module through the secondary processor and the bus board, and a highest temperature threshold and a lowest temperature threshold are preset in the temperature sensor.
Preferably, the electric heating plate is started when the temperature is greater than the maximum temperature threshold value preset by the temperature sensor; or the electric heating plate is closed when the temperature is lower than the lowest temperature threshold value preset by the humidity sensor.
Preferably, the human-computer interaction module includes display module and input module, input module is used for realizing human-computer interaction, inputs appointed temperature threshold value and appointed humidity threshold value, display module includes liquid crystal display and pilot lamp, liquid crystal display is used for showing real-time temperature and humidity in the distribution automation terminal to and show the data such as real-time voltage, electric current, zero sequence voltage, zero sequence current, active power, reactive power and the power factor of distribution automation terminal, the pilot lamp is used for instructing, operation, communication, warning, shutting, protection, power loss, activation and each line state.
Preferably, the power module includes a main power module, and this main power module and main circuit cable junction supply power for whole distribution automation terminal through the main circuit, power module still includes a stand-by power module, and this stand-by power module connects deputy processor, supplies power for whole distribution automation terminal under the condition of cutting off the power supply temporarily.
Preferably, the alternating current board card can be provided with a plurality of alternating current boards, and each alternating current board card is at least correspondingly provided with 12 alternating current signals.
Preferably, the main processor is connected with the distribution automation master station through the Ethernet for real-time communication.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the dehumidification module is arranged, and the dehumidifier is directly arranged in the distribution automation terminal and is determined according to the humidity value acquired by the internal humidity sensor when the dehumidifier is opened and closed, so that the humidity in the distribution automation terminal can be controlled in a required range by setting the humidity threshold value for opening and closing the dehumidifier in a reasonable range, thereby reducing the potential damping hazard of the whole distribution automation terminal and improving the reliability of the distribution automation terminal.
2. According to the invention, the heating module is arranged, and the electric heating plate is directly arranged in the distribution automation terminal and is determined according to the temperature value acquired by the internal temperature sensor when the electric heating plate is opened and closed, so that the temperature in the distribution automation terminal can be controlled within a required range by setting the temperature threshold value for opening and closing the electric heating plate within a reasonable range, and further the temperature in the distribution automation terminal can be always ensured to be in an appropriate state under a cold weather condition or during sudden temperature drop. The reliability of the distribution automation terminal equipment is further improved, and the failure rate is reduced.
Drawings
Fig. 1 is a block diagram of a distribution automation terminal of the present invention;
fig. 2 is a diagram of a dehumidification module of a distribution automation terminal according to the present invention;
fig. 3 is a heating block diagram of a distribution automation terminal according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In one embodiment of the invention
A distribution automation terminal comprises a CPU mainboard, a heating module, a dehumidification module, a man-machine interaction module, a power supply module, a switch, a bus board and an AC board card, wherein
A main processor and an auxiliary processor are integrated on the CPU mainboard, and the auxiliary processor is respectively connected with the heating module and the dehumidifying module;
the heating module is used for increasing the temperature in the distribution automation terminal equipment, and the dehumidification module is used for controlling the humidity in the distribution automation terminal equipment;
the power supply module is electrically connected with the CPU mainboard and provides electric energy for the whole power distribution automation terminal equipment;
the main processor is respectively connected with the human-computer interaction module, the alternating current board card and the interaction machine through the bus board;
the secondary processor is connected with the bus board, and data transmission of temperature and humidity in the power distribution automation terminal equipment is achieved.
The man-machine interaction module comprises a display module and an input module, the input module is used for realizing man-machine interaction, the input specifies a temperature threshold value and a humidity threshold value, the display module comprises a liquid crystal display and an indicator light, the liquid crystal display is used for displaying real-time temperature and humidity in the distribution automation terminal, and displaying real-time voltage, current, zero sequence voltage, zero sequence current, active power, reactive power, power factor and other data of the distribution automation terminal, and the indicator light is used for indicating, running, communication, warning, alarming, locking, protecting, power loss, activating and each line state.
Further, the indicator light is an LED indicator light, and the LED indicator light includes, but is not limited to, a red LED indicator light and a green LED indicator light.
The power module comprises a main control power module, the main control power module is connected with a main circuit cable and supplies power for the whole distribution automation terminal through the main circuit, the power module further comprises a standby power module, the standby power module is connected with the secondary processor and supplies power for the whole distribution automation terminal under the condition of temporary power failure.
The alternating current board card can be provided with a plurality of, and each alternating current board card is configured with 12 alternating current signals correspondingly at least.
The main processor is connected with the distribution automation main station through the Ethernet to carry out real-time communication.
It is worth noting that the bus board is further provided with a plurality of expansion board cards in a matched manner, and the expansion board cards are inserted into the distribution automation terminal equipment and used for connecting the wireless communication module or being used for accessing a new module to perform maintenance work of the distribution automation terminal.
In another embodiment of the invention
The dehumidification module includes humidity transducer, data collection station and dehumidifier, the dehumidifier install in distribution automation terminal equipment's inner chamber lower part and with humidity transducer electric connection, humidity transducer has preset a highest humidity threshold value and a minimum humidity threshold value, data collection station and humidity transducer and deputy processor electric connection, with the real-time humidity data of gathering transmit to man-machine interaction module through deputy processor and bus board.
The dehumidifier is started when the humidity is greater than a highest humidity threshold value preset by a humidity sensor; or the dehumidifier is closed when the humidity is smaller than the lowest humidity threshold preset by the humidity sensor.
It can be seen that, because directly at distribution automation terminal internally mounted dehumidifier to opening and closing of dehumidifier is decided according to the humidity value that inside humidity transducer gathered, consequently as long as set the humidity threshold value of opening and closing the dehumidifier in reasonable within range can make the humidity control in the distribution automation terminal in the demand within range.
It can be understood that since the dehumidifier is installed at the lower side in the distribution automation terminal, the inside can be very conveniently dehumidified.
It should be noted that the maximum humidity threshold and the minimum humidity threshold are not fixed and can be set by the user.
For example, the humidity sensor feeds back the measured temperature and humidity values to the dehumidifier, and the power supply of the humidity sensor is connected to the dehumidifier. Judging whether the dehumidifier is started or not according to the obtained humidity data, and starting to work when the humidity is more than or equal to 65% RH under the general condition; when the detected humidity is less than or equal to 60% RH, the operation is stopped, and the threshold for starting and stopping can be adjusted by the user according to the requirement.
In another embodiment of the invention
The heating module comprises a temperature sensor, a data processor and an electric heating plate, the electric heating plate is electrically connected with the temperature processor and used for improving the temperature in the distribution automation terminal equipment, the temperature sensor is electrically connected with the electric heating plate and the auxiliary processor, real-time temperature data in the distribution automation terminal equipment is transmitted to the man-machine interaction module through the auxiliary processor and the bus board, and a highest temperature threshold value and a lowest temperature threshold value are preset by the temperature sensor.
The electric heating plate is started when the temperature is greater than the maximum temperature threshold value preset by the temperature sensor; or the electric heating plate is closed when the temperature is lower than the lowest temperature threshold value preset by the humidity sensor.
It can be seen that, because the electric heating plate is directly installed inside the distribution automation terminal, and the opening and closing of the electric heating plate is determined according to the temperature value collected by the internal temperature sensor, the temperature in the distribution automation terminal can be controlled within a required range as long as the temperature threshold for opening and closing the electric heating plate is set within a reasonable range.
It should be noted that the maximum humidity threshold and the minimum humidity threshold are not fixed and can be set by the user.
For example, the temperature sensor feeds back the measured temperature and humidity values to the electric heating plate, and the power supply of the temperature sensor is accessed from the electric heating plate. The electric heating plate judges whether to start according to the obtained temperature data, and under the general condition, when the humidity is lower than 0 ℃, the electric heating plate starts to work; when the detected humidity is more than 30 ℃, the work is stopped, and the threshold value for starting and stopping can be adjusted by a user according to needs.
Claims (9)
1. The distribution automation terminal is characterized by comprising a CPU mainboard, a heating module, a dehumidification module, a human-computer interaction module, a power supply module, a switch, a bus board and an alternating-current board card, wherein the CPU mainboard, the heating module, the dehumidification module, the human-computer interaction module, the power supply module, the switch, the bus board and the alternating-current board card are arranged in the
A main processor and an auxiliary processor are integrated on the CPU mainboard, and the auxiliary processor is respectively connected with the heating module and the dehumidifying module;
the heating module is used for increasing the temperature in the distribution automation terminal equipment, and the dehumidifying module is used for controlling the humidity in the distribution automation terminal equipment;
the power supply module is electrically connected with the CPU mainboard and provides electric energy for the whole power distribution automation terminal equipment;
the main processor is respectively connected with the human-computer interaction module, the alternating current board card and the interaction machine through the bus board;
the secondary processor is connected with the bus board, and data transmission of temperature and humidity in the power distribution automation terminal equipment is achieved.
2. The power distribution automation terminal of claim 1, wherein: the dehumidification module comprises a humidity sensor, a data acquisition unit and a dehumidifier, the dehumidifier is installed on the lower portion of an inner cavity of the power distribution automation terminal equipment and electrically connected with the humidity sensor, a highest humidity threshold value and a lowest humidity threshold value are preset on the humidity sensor, the data acquisition unit is electrically connected with the humidity sensor and the auxiliary processor, and real-time humidity data acquired are transmitted to the human-computer interaction module through the auxiliary processor and the bus board.
3. The distribution automation terminal of claim 2, wherein: the dehumidifier is started when the humidity is greater than a highest humidity threshold value preset by a humidity sensor; or, the dehumidifier is closed when the humidity is less than the lowest humidity threshold preset by the humidity sensor.
4. The power distribution automation terminal of claim 1, wherein: the heating module comprises a temperature sensor, a data processor and an electric heating plate, the electric heating plate is electrically connected with the temperature processor and used for increasing the temperature in the distribution automation terminal equipment, the temperature sensor is electrically connected with the electric heating plate and the secondary processor and used for transmitting real-time temperature data in the distribution automation terminal equipment to the man-machine interaction module through the secondary processor and the bus board, and a highest temperature threshold value and a lowest temperature threshold value are preset in the temperature sensor.
5. The distribution automation terminal of claim 4, wherein: the electric heating plate is started when the temperature is greater than the maximum temperature threshold value preset by the temperature sensor; or the electric heating plate is closed when the temperature is lower than the lowest temperature threshold value preset by the humidity sensor.
6. The power distribution automation terminal of claim 1, wherein: the human-computer interaction module includes display module and input module, input module is used for realizing human-computer interaction, inputs appointed temperature threshold value and appointed humidity threshold value, display module includes liquid crystal display and pilot lamp, liquid crystal display is used for showing real-time temperature and humidity in the distribution automation terminal to and show data such as real-time voltage, electric current, zero sequence voltage, zero sequence current, active power, reactive power and power factor of distribution automation terminal, the pilot lamp is used for instructing, operation, communication, warning, shutting, protection, losing electricity, activation and each line state.
7. The power distribution automation terminal of claim 1, wherein: the power module comprises a main control power module, the main control power module is connected with a main circuit cable and supplies power for the whole distribution automation terminal through the main circuit, the power module further comprises a standby power module, the standby power module is connected with the secondary processor and supplies power for the whole distribution automation terminal under the condition of temporary power failure.
8. The power distribution automation terminal of claim 1, wherein: the alternating current board card can be provided with a plurality of, and each alternating current board card at least corresponds and disposes 12 alternating current signals.
9. The power distribution automation terminal of claim 1, wherein: and the main processor is connected with the distribution automation master station through the Ethernet to perform real-time communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127003.3A CN112379708A (en) | 2020-10-20 | 2020-10-20 | Distribution automation terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127003.3A CN112379708A (en) | 2020-10-20 | 2020-10-20 | Distribution automation terminal |
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| CN112379708A true CN112379708A (en) | 2021-02-19 |
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| CN202011127003.3A Pending CN112379708A (en) | 2020-10-20 | 2020-10-20 | Distribution automation terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136492A (en) * | 2021-11-25 | 2022-03-04 | 广东电网有限责任公司 | Automatic detection system, method, equipment and storage medium for distribution automation terminal |
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Effective date of registration: 20220111 Address after: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant after: STATE GRID SHANDONG ELECTRIC POWER COMPANY YANTAI POWER SUPPLY Co. Address before: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant before: STATE GRID SHANDONG ELECTRIC POWER COMPANY YANTAI POWER SUPPLY Co. Applicant before: STATE GRID CORPORATION OF CHINA |
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