Intelligent power supply and distribution system for expressway
By designing intelligent power supply and distribution management modules and detection units in the highway power supply and distribution system, the rapid positioning and isolation of the fault modules is achieved, solving the problems of widespread failure impact in the highway power supply and distribution system, and improving maintenance efficiency and operational security.
Patent Information
- Application Number
- CN202421384579.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When there is a power supply problem in the equipment or cables of the highway power supply system, all the equipment powered by the same transformer on the main line will be paralyzed, affecting the normal use of the equipment. Moreover, due to underground buried lines, it is difficult to locate the fault, resulting in a longer power supply time to restore power supply, affecting the fault. Repair efficiency and operational security.
An intelligent power supply and distribution system for highways is designed, including power supply module, boost integrated control module, step-down integrated control module, power supply and distribution management module and electromechanical operation and maintenance management module. Through real-time detection of the first detection unit and the second detection unit and remote control of the power supply and distribution management module, the faulty module can be positioned and isolated in a timely manner to avoid affecting the normal operation of other modules.
It realizes rapid fault positioning and isolation of the intelligent power supply and distribution system of the expressway, improves maintenance efficiency and operation safety, reduces fault repair time, and ensures normal power supply of expressway equipment.
Smart Images
Figure CN222441350U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power supply and distribution, in particular to an intelligent power supply and distribution system for a highway. Background Art
[0002] With the development of social economy, in order to meet people's growing travel needs, it is often necessary to install lighting, monitoring and other equipment during the construction of highways.
[0003] At present, when supplying power to the above-mentioned equipment, the power supply and distribution of highways adopts long-distance direct power supply by transformers. When a power supply problem occurs to a device or cable on the highway, it will directly cause all the equipment powered by the same transformer on the main line to be paralyzed, affecting the normal use of the equipment. At the same time, since the cables are buried underground, it is difficult for operation and maintenance personnel to locate the specific fault point, and it takes a lot of time to find the problem point. The time to restore power supply also increases accordingly, which directly affects the efficiency of fault repair and seriously affects the safety of main line operations. Utility Model Content
[0004] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide an intelligent power supply and distribution system for expressways that is easy to maintain.
[0005] Based on the above purpose, the utility model adopts the following technical solution.
[0006] An intelligent power supply and distribution system for a highway comprises: a power supply module, a boost centralized control module, a plurality of step-down centralized control modules, a power supply and distribution management module and an electromechanical operation and maintenance management module; the boost centralized control module is connected to the power supply module via a bus, and the boost centralized control module comprises a first detection unit; the step-down centralized control module is connected in parallel with the boost centralized control module via the bus; the step-down centralized control modules are connected in parallel via the bus; the step-down centralized control module comprises a second detection unit; the first detection unit and the second detection unit are respectively connected to the power supply and distribution management module; and the electromechanical operation and maintenance management module is connected to the power supply and distribution management module.
[0007] Furthermore, the first detection unit detects the output voltage of the boost control module, and when the output voltage of the boost control module is abnormal, it outputs a first voltage warning signal to the power supply and distribution management module; the second detection unit detects the output voltage of the buck control module, and when the output voltage of the buck control module is abnormal, it outputs a second voltage warning signal to the power supply and distribution management module.
[0008] Furthermore, when the power supply and distribution management module receives the first voltage warning signal, it disconnects the connection between the boost control module with abnormal output voltage and the bus; when the power supply and distribution management module receives the second voltage warning signal, it disconnects the connection between the step-down control module with abnormal output voltage and the bus.
[0009] Furthermore, the boost centralized control module includes a first battery unit, the first battery unit is connected to the bus bar, and the first battery unit is connected to an external load.
[0010] Furthermore, the first battery unit includes a first energy storage unit and a first conversion unit, the first energy storage unit and the first conversion unit are connected, and the first conversion unit is respectively connected to the bus bar and the external load.
[0011] Furthermore, the boost centralized control module includes a boost unit, which is connected to the bus; the voltage of the bus is 400V, and the boost unit boosts the voltage of the bus to 800V and transmits it to the step-down centralized control module.
[0012] Furthermore, the step-down control module includes a step-down unit and a second battery unit, and the second battery unit is connected to the step-down unit; the step-down unit is connected to the bus, and the step-down unit steps down the voltage of the bus to 400V and transmits it to the second battery unit, and the second battery unit is also connected to an external load.
[0013] Furthermore, the second battery unit includes a second energy storage unit and a second conversion unit, the second energy storage unit and the second conversion unit are connected, and the second conversion unit is respectively connected to the step-down unit and the external load.
[0014] Furthermore, the cross-sectional area of the busbar cable is less than or equal to 16 mm².
[0015] The above-mentioned intelligent power supply and distribution system for highways is capable of timely detecting, locating and isolating a failed boost control module and / or buck control module by setting up a power supply and distribution management module to connect the first detection unit and the second detection unit; and the boost control module and the buck control module are connected in parallel, and disconnecting the connection between any boost control module or buck control module and the busbar does not affect the power supply of other boost control modules or buck control modules to external loads, thereby improving the maintenance efficiency and operation safety of the intelligent power supply and distribution system for highways. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the intelligent power supply and distribution system for expressways provided by the utility model;
[0017] Figure 2 It is a schematic diagram of a boost centralized control module provided by the utility model;
[0018] Figure 3 It is a schematic diagram of a voltage reduction centralized control module provided according to the utility model. DETAILED DESCRIPTION
[0019] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.
[0020] like Figure 1 As shown, this embodiment provides an intelligent power supply and distribution system for a highway. The intelligent power supply and distribution system for a highway includes a power supply module 11, a boost centralized control module 12, a plurality of buck centralized control modules 13, a power supply and distribution management module 14, and an electromechanical operation and maintenance management module 15. Among them, the boost centralized control module 12 is connected to the power supply module 11 through a bus 16, and the boost centralized control module 12 includes a first detection unit 121, and the first detection unit 121 is used to detect the output voltage of the boost centralized control module 12. The buck centralized control module 13 is connected in parallel with the boost centralized control module 12 through the bus 16; the buck centralized control modules 13 are also connected in parallel through the bus 16, so that when one of the buck centralized control modules 13 is isolated for fault or maintenance, the operation of other buck centralized control modules 13 on the bus 16 line is not affected. The buck centralized control module 13 includes a second detection unit 131, and the second detection unit 131 is used to detect the output voltage of the buck centralized control module 13. The first detection unit 121 and the second detection unit 131 are respectively connected to the power supply and distribution management module 14 to transmit the output voltage of the boost control module 12 and the buck control module 13 to the power supply management module. Furthermore, the first detection unit 121 and the second detection unit 131 also detect the equipment operation parameters in the boost control module 12 and the buck control module 13, and upload the detection data to the power supply and distribution management module 14. Among them, the equipment operation parameters include water immersion parameters, temperature and humidity parameters, working current, equipment alarm status, and surge current parameters. Furthermore, the electromechanical operation and maintenance management module 15 is connected to the power supply and distribution management module 14, and the power supply and distribution management module 14 can upload the equipment operation parameters to the electromechanical operation and maintenance management module 15, so as to perform operation and maintenance management on the boost control module 12 and the buck control module 13.
[0021] Through the above-mentioned settings, when a line or equipment fault occurs in the boost control module 12 and / or the step-down control module 13, the first detection unit 121 and the second detection unit 131 can detect the fault in time and upload it to the power supply and distribution management module 14 and the electromechanical operation and maintenance management module 15, so that the staff can disconnect the connection between the faulty module and the bus 16 in time and isolate and repair the faulty module, thereby improving the fault repair efficiency and operation safety of the intelligent power supply and distribution system of the highway.
[0022] Specifically, the first detection unit 121 detects the output voltage of the boost control module 12. When the output voltage of the boost control module 12 is abnormal, the first voltage warning signal is output to the power supply and distribution management module 14. The second detection unit 131 detects the output voltage of the buck control module 13. When the output voltage of the buck control module 13 is abnormal, the second voltage warning signal is output to the power supply and distribution management module 14, so that the faulty module can be accurately located to facilitate subsequent maintenance. When the power supply and distribution management module 14 receives the first voltage warning signal, it disconnects the connection between the boost control module 12 with abnormal output voltage and the bus 16; when the power supply and distribution management module 14 receives the second voltage warning signal, it disconnects the connection between the buck control module 13 with abnormal output voltage and the bus 16 to isolate the faulty module, maintain the normal operation of other modules in the highway intelligent power supply and distribution system, and improve the safety of system operation.
[0023] like Figure 1 and Figure 2 As shown, the boost control module 12 also includes a first battery unit 122, which is connected to the bus 16. The first battery unit 122 converts the input electricity into 220V AC and outputs it to the external load. The first detection unit 121 is connected to the first battery unit 122 to detect the output voltage and equipment operation parameters of the first battery unit 122. Among them, the output voltage of the first battery unit 122 is the output voltage of the boost control module 12. Specifically, the first battery unit 122 includes a first energy storage unit 1221 and a first conversion unit 1222, and the first energy storage unit 1221 is connected to the first conversion unit 1222, and the first conversion unit 1222 is respectively connected to the bus 16 and the external load. The first conversion unit 1222 is used to convert the 400V AC input from the bus 16 into 220V AC for use by the external load. When the boost control module 12 is disconnected from the bus 16, the first energy storage unit 1221 transmits power to the first conversion unit 1222, so that the external 5kW load can continue to work for at least 2 hours. Among them, the external load includes monitoring, lighting and other equipment. Furthermore, the first detection unit 121 can also detect the input voltage of the boost control module 12 and upload it to the power supply and distribution management module 14 to detect whether the bus 16 between the power supply module 11 and the boost control module 12 is faulty. When the input voltage or output voltage of the boost control module 12 is abnormal, the power supply and distribution management module 14 disconnects the connection between the first battery unit 122 and the bus 16. Through the above-mentioned settings, the highway intelligent power supply and distribution system can isolate the faulty modules and lines while ensuring the normal operation of other modules, and supply power to the external load through the first battery module to ensure the normal operation of the external load, thereby improving the stability of the operation of the highway intelligent power supply and distribution system.
[0024] The boost control module 12 also includes a boost unit 123, which is connected to the bus 16. The voltage of the bus 16 received by the boost unit 123 is 400V, and the boost unit 123 boosts the voltage of the bus 16 to 800V and transmits it to the step-down control module 13. By increasing the power supply voltage, the wire diameter of the bus 16 cable can be reduced. Specifically, the cross-sectional area of the bus 16 cable can be set to be less than or equal to 16mm². Furthermore, by increasing the power supply voltage, the boost control module 12 can have a longer power supply distance. Specifically, the power supply distance of the boost control module 12 can be set to be greater than or equal to 6km.
[0025] like Figure 1 and Figure 3 As shown, the voltage reduction control module 13 also includes a second battery unit 132, which is connected to a voltage reduction unit 133; the voltage reduction unit 133 is connected to the bus 16, and the voltage reduction unit 133 reduces the voltage of the bus 16 to 400V and transmits it to the second battery unit 132, and the second battery unit 132 is also connected to an external load to supply power to the external load. Specifically, the second battery unit 132 is also connected to a second detection unit 131, and the second detection unit 131 can detect the output voltage of the second battery unit 132, and the output voltage of the second battery unit 132 is the output voltage of the voltage reduction control module 13. Furthermore, the second battery unit 132 includes a second energy storage unit 1321 and a second conversion unit 1322, the second energy storage unit 1321 and the second conversion unit 1322 are connected, the second conversion unit 1322 is respectively connected to the step-down unit 133 and the external load, and the second conversion unit 1322 is used to convert the 400V AC output of the step-down unit 133 into 220V AC for use by the external load. When the step-down control module 13 is disconnected from the bus 16, the second energy storage unit 1321 supplies power to the second conversion unit 1322 so that the external 5kW load can continue to work for 2 hours. Furthermore, the second detection unit 131 can also detect the input voltage of the step-down unit 133 to detect whether the bus 16 line is faulty. When the input voltage of the step-down unit 133 is abnormal, the connection between the step-down unit 133 and the bus 16 is disconnected. Through the above configuration, when the step-down centralized control module 13 is disconnected from the bus 16, it can ensure that the external load can continue to work, and because the step-down centralized control module 13 is connected in parallel with other modules, the impact of the module on other modules on the bus 16 is reduced.
[0026] In summary, the highway intelligent power supply and distribution system in this application detects the input voltage, output voltage and equipment operating parameters of the boost control module 12 and the buck control module 13 by setting the first detection unit 121 and the second detection unit 131, so as to quickly locate and isolate the faulty module. And the connection between the boost control module 12 and the buck control module 13 and the bus 16 is remotely controlled through the power supply and distribution management module 14 to avoid affecting the normal operation of other modules in the line. Then, the equipment of the faulty module is operated and maintained through the electromechanical operation and maintenance management module 15. The convenience of maintenance and operation safety of the highway intelligent power supply and distribution system are improved.
[0027] The above is a description of the embodiments of the utility model. Through the above description of the disclosed embodiments, professionals and technicians in the field can implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field. The general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown in this article, but will conform to the widest range consistent with the principles and novelties disclosed in this article.
Claims
1. An intelligent power supply and distribution system for expressways, characterized in that: include: Power supply module (11); A boost centralized control module (12), the boost centralized control module (12) being connected to the power supply module (11) via a bus bar (16), the boost centralized control module (12) comprising a first detection unit (121); A plurality of step-down centralized control modules (13), wherein the step-down centralized control modules (13) are connected in parallel with the step-up centralized control modules (12) via the busbar (16); the step-down centralized control modules (13) are connected in parallel with each other via the busbar (16); and the step-down centralized control modules (13) include a second detection unit (131); A power supply and distribution management module (14), wherein the first detection unit (121) and the second detection unit (131) are respectively connected to the power supply and distribution management module (14); An electromechanical operation and maintenance management module (15), the electromechanical operation and maintenance management module (15) being connected to the power supply and distribution management module (14).
2. The intelligent power supply and distribution system for highways as claimed in claim 1, characterized in that: The first detection unit (121) detects the output voltage of the boost centralized control module (12), and when the output voltage of the boost centralized control module (12) is abnormal, outputs a first voltage warning signal to the power supply and distribution management module (14); the second detection unit (131) detects the output voltage of the buck centralized control module (13), and when the output voltage of the buck centralized control module (13) is abnormal, outputs a second voltage warning signal to the power supply and distribution management module (14).
3. The intelligent power supply and distribution system for highways as claimed in claim 2, characterized in that: When the power supply and distribution management module (14) receives the first voltage warning signal, it disconnects the connection between the boost centralized control module (12) with abnormal output voltage and the bus (16); when the power supply and distribution management module (14) receives the second voltage warning signal, it disconnects the connection between the buck centralized control module (13) with abnormal output voltage and the bus (16).
4. The intelligent power supply and distribution system for highways as claimed in claim 1, characterized in that: The boost centralized control module (12) comprises a first battery unit (122), wherein the first battery unit (122) is connected to the bus bar (16), and the first battery unit (122) is connected to an external load.
5. The intelligent power supply and distribution system for highways as claimed in claim 4, characterized in that: The first battery unit (122) comprises a first energy storage unit (1221) and a first conversion unit (1222); the first energy storage unit (1221) and the first conversion unit (1222) are connected; and the first conversion unit (1222) is respectively connected to the bus bar (16) and an external load.
6. The intelligent power supply and distribution system for highways as claimed in claim 1, characterized in that: The boost centralized control module (12) comprises a boost unit (123), wherein the boost unit (123) is connected to the bus (16); the voltage of the bus (16) is 400V, and the boost unit (123) boosts the voltage of the bus (16) to 800V and transmits the voltage to the step-down centralized control module (13).
7. The intelligent power supply and distribution system for highways as claimed in claim 6, characterized in that: The voltage reduction centralized control module (13) comprises a voltage reduction unit (133) and a second battery unit (132), wherein the second battery unit (132) is connected to the voltage reduction unit (133); the voltage reduction unit (133) is connected to the bus bar (16), the voltage reduction unit (133) reduces the voltage of the bus bar (16) to 400V and transmits it to the second battery unit (132), and the second battery unit (132) is also connected to an external load.
8. The intelligent power supply and distribution system for highways as claimed in claim 7, characterized in that: The second battery unit (132) comprises a second energy storage unit (1321) and a second conversion unit (1322), the second energy storage unit (1321) and the second conversion unit (1322) are connected, and the second conversion unit (1322) is respectively connected to the step-down unit (133) and an external load.
9. The intelligent power supply and distribution system for highways as claimed in claim 1, characterized in that: The cross-sectional area of the busbar (16) cable is less than or equal to 16 mm².