CN-121993877-A - Intelligent remote-control centralized air conditioner control system for transformer substation control cabinets

Abstract

The invention relates to the technical field of temperature control of transformer substation equipment, in particular to a centralized air conditioner control system capable of being intelligently and remotely controlled by a transformer substation control cabinet, which comprises a variable frequency external machine and at least two internal machines for controlling the temperature of the corresponding control cabinet, wherein the internal machines are connected through a branch pipe to form a distributed refrigerant circulation network; the sensing layer is used for collecting temperature and humidity environment data in each control cabinet and assisting in running control of the internal machine, the communication layer is used for establishing a bidirectional communication link between the sensing layer, the control layer and the cloud platform, the control layer is used for receiving the temperature and humidity data and executing local or remote running parameter adjustment and system state control, the intelligent control system further comprises a patrol system, an air drying system, an air filtering system and a capacity expansion pipeline, the control layer comprises a local wire controller and a remote control terminal, and the system adopts a PID algorithm to adjust the running state of the internal machine. The invention can realize accurate temperature control and remote intelligent regulation of the control cabinet, improve operation and maintenance efficiency and system reliability and reduce energy consumption.

Inventors

• LIU JIE
• LI XU
• WU TAOTAO
• WANG KE

Assignees

• 国网新疆电力有限公司阿克苏供电公司

Dates

Publication Date

20260508

Application Date

20260128

Claims (10)

1. 1. But centralized air conditioner control system of transformer substation's control cubicle intelligence remote regulation and control, its characterized in that includes: The variable-frequency external machine is connected with at least two internal machines for controlling the temperature of the corresponding control cabinets through branch pipes to form a distributed refrigerant circulation network, and the variable-frequency external machine is used for accurately conveying cold air flow or hot air flow to each corresponding control cabinet to realize the temperature regulation in the cabinet; The sensing layer is used for collecting temperature and humidity environment data in each control cabinet, providing data support for the operation control of the internal machine and assisting in realizing the operation control of the internal machine; The communication layer is used for establishing a two-way communication link between the sensing layer and the cloud platform and between the control layer and the cloud platform, so that uploading of temperature and humidity data to the cloud platform and issuing of an air conditioner control instruction to an indoor unit are realized; and the control layer is used for receiving the temperature and humidity data of each control cabinet acquired by the sensing layer and respectively executing the local operation parameter adjustment, the remote operation parameter adjustment and the overall system state control of the corresponding control cabinet internal machine based on the data.
2. 2. The intelligent remotely controllable centralized air conditioner control system of the transformer substation control cabinet according to claim 1, wherein the sensing layer comprises a temperature and humidity sensor and an infrared remote controller, each internal machine is correspondingly provided with the temperature and humidity sensor and the infrared remote controller, the temperature and humidity sensor is used for collecting temperature and humidity data in the corresponding control cabinet, and the infrared remote controller is used for assisting the internal machine to start and stop or switching modes.
3. 3. The intelligent remotely controllable centralized air conditioner control system of the transformer substation control cabinets according to claim 1, further comprising a patrol system, wherein each control cabinet in the patrol system is provided with a camera, the cameras are linked with the control layer, and shooting, video transmission and abnormal data recording are triggered when the temperature and humidity data of the corresponding control cabinet exceeds a preset threshold.
4. 4. The intelligent remote-controllable centralized air-conditioning control system for the transformer substation control cabinet according to claim 1, 2 or 3, further comprising an air drying system, wherein the air drying system is arranged at the connection end of the variable frequency external machine and the branch pipeline and is used for detecting the humidity of air-conditioning output air flow, and the dehumidification intensity is adaptively adjusted according to the detection result, so that the air-flow humidity is maintained in a preset range.
5. 5. The intelligent remotely controllable centralized air-conditioning control system of a substation control cabinet according to claim 4, wherein the air drying system comprises a humidity detection element and a dehumidifying component, and the dehumidifying component adjusts the dehumidifying strength according to the detection result of the humidity detection element.
6. 6. The intelligent remote-controllable centralized air-conditioning control system for the transformer substation control cabinet according to claim 1,2, 3 or 5, further comprising an air filtering system, wherein the air filtering system is arranged at an air inlet of the variable-frequency outdoor unit and is used for filtering impurities in air entering the outdoor unit and purifying an air inlet environment.
7. 7. The intelligent remotely controllable centralized air-conditioning control system of a substation control cabinet according to claim 6, wherein the air filtering system comprises at least two layers of filter screens for filtering particulate matter and harmful gases in the air, respectively.
8. 8. The intelligent remotely controllable centralized air-conditioning control system of the transformer substation control cabinet according to claim 1, 2, 3,5 or 7, further comprising a capacity expansion pipeline, wherein one end of the capacity expansion pipeline is in sealed communication with the variable frequency external machine or the main branch pipeline, and the other end of the capacity expansion pipeline is closed and is used for adapting to pipeline expansion requirements of a newly-added control cabinet.
9. 9. The intelligent remotely controllable centralized air conditioner control system of the transformer substation control cabinet according to claim 1, 2, 3, 5 or 7, wherein the control layer comprises a local wire controller and a remote control terminal, the local wire controller is electrically connected with the internal machine, and the remote control terminal is in communication connection with the communication layer through the cloud platform to realize a remote control function.
10. 10. The intelligent remotely controllable centralized air conditioner control system of the transformer substation control cabinets according to claim 1, 2, 3, 5 or 7, further comprising an environment monitoring master station, wherein the environment monitoring master station is in communication with the cloud platform and is used for summarizing environment data and system operation states of the control cabinets and displaying the environment data and the system operation states in a unified manner.

Description

Intelligent remote-control centralized air conditioner control system for transformer substation control cabinets Technical Field The invention relates to the technical field of temperature control of substation equipment, in particular to a centralized air conditioner control system capable of being intelligently and remotely controlled by a substation control cabinet. Background As one of the core devices of the power system, the substation control cubicle integrates a large number of precision electronic components, and the operation stability of the components directly depends on good environmental temperature conditions. In the long-term operation process of the power system, electronic elements in the control cabinet continuously emit heat, if the heat cannot be timely emitted, the temperature in the cabinet can be increased and exceeds the tolerance range of the electronic elements, so that the performance attenuation, faults and even burning of the elements are caused, and the safe and stable operation of the power system is seriously influenced. In the prior art, the heat dissipation mode of the control cabinet mainly comprises fan heat dissipation, heat exchanger heat dissipation, air conditioner heat dissipation and the like. The fan radiating mode is simple in structure and low in cost, but radiating efficiency is limited, temperature is difficult to control in an ideal range under the condition of a high-temperature environment or more heating elements in the control cabinet, intelligent adjusting capability is lacked, and radiating strength cannot be adjusted in a self-adaptive mode according to temperature change in the cabinet. Although heat exchange can be realized to a certain extent by heat dissipation of the heat exchanger, the heat exchange is greatly influenced by the ambient temperature, and when the ambient temperature is high, the heat dissipation effect can be obviously reduced, and the temperature control requirement under the high-temperature environment is difficult to meet. Compared with the former two modes, the air conditioner heat dissipation mode can provide a more stable temperature environment, becomes a common choice for heat dissipation of the current control cabinet, and still has a plurality of defects. Firstly, the control mode is single, most traditional control cubicle air conditioners adopt local temperature control or infrared remote control, network management capability is lacked, operation and maintenance personnel cannot remotely master the running state of the air conditioner and the environment condition in the control cubicle in real time, and centralized and intelligent management is difficult to realize. And secondly, the system has poor cooperativity, the air conditioning equipment, the environment monitoring system, the visual system and the like run independently, data sharing and linkage control cannot be realized among the systems, and when the environment in the control cubicle is abnormal, corresponding response measures cannot be triggered quickly, so that fault treatment is not timely. Furthermore, the maintenance efficiency is low, after the air conditioning equipment fails, operation and maintenance personnel are required to go to the site for investigation, the response time is often up to more than 1-2 hours under the regional limitation, the operation and maintenance cost is increased, and more serious electric safety problems can be caused by long-time untreated failure. In addition, the traditional fixed-frequency air conditioner is low in energy efficiency ratio under partial load, higher in energy consumption, not conforming to the current development trend of energy conservation and emission reduction, meanwhile, the intelligent level is insufficient, the operation parameters cannot be automatically adjusted according to the actual temperature requirement in the control cabinet, and the intelligent operation and maintenance requirements of the modern transformer substation cannot be met because accurate regulation and control cannot be remotely performed. Disclosure of Invention The invention provides an intelligent remote-controllable centralized air conditioner control system for a transformer substation control cabinet, which overcomes the defects of the prior art, and can effectively solve the problems of single control mode, poor cooperativity and insufficient intelligent level of the existing control cabinet air conditioner. The technical scheme of the invention is realized by the following measures that the intelligent remote-controllable centralized air conditioner control system of the transformer substation control cabinet comprises: The variable-frequency external machine is connected with at least two internal machines for controlling the temperature of the corresponding control cabinets through branch pipes to form a distributed refrigerant circulation network, and the variable-frequency external machine is used for accura