CN221080980U - Load switching management device of full redundancy of modularized hardware - Google Patents
Load switching management device of full redundancy of modularized hardware Download PDFInfo
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- CN221080980U CN221080980U CN202322980496.0U CN202322980496U CN221080980U CN 221080980 U CN221080980 U CN 221080980U CN 202322980496 U CN202322980496 U CN 202322980496U CN 221080980 U CN221080980 U CN 221080980U
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- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model discloses a modularized hardware full-redundancy load switching management device, which comprises a main control unit and a redundancy control unit; the main control unit is used for load switching management and comprises a first power supply module, a first CPU module, a first redundancy module, a first alternating current detection module, a first switching value detection module and a first output control module; the redundancy control unit provides complete redundancy backup for the control function of the load switching management process and comprises a second power supply module, a second CPU module, a second redundancy module, a second alternating current detection module, a second switching value detection module and a second output control module; the first redundancy module and the second redundancy module provide a state interaction channel and a function interaction channel of the main control unit and the redundancy control unit. The reliability and the stability of the load switching of the power system are improved.
Description
Technical Field
The utility model relates to a load switching management device in an electric power system, in particular to a modularized hardware full-redundancy load switching management device which is used for realizing reliable transfer of loads between two paths of power supplies.
Background
In an electrical power system, load switching is an important operation for achieving smooth transfer of load between two power sources. However, due to the possible difference between the capacity and the stability of the two power supplies, it is necessary to ensure that the power supply with smaller total capacity (usually, the mechanical prime mover type standby power supply such as the diesel generator set with limited total power, the micro-gas turbine and the like) in the load switching process does not cause the instability of the standby power supply system due to the rapid increase of the load, so that the power supply quality of the standby power supply is unstable or the continuous power supply process is interrupted by the unit protection function. The function and reliability of the load switching management device for performing load switching control become particularly important.
The existing load switching control device of the power system has no hardware full-redundancy structure, can not maintain the load switching control function of the system when the switching control device fails or needs maintenance, and has the load switching control function at any moment when the reliability requirement is high. In addition, in order to ensure the reliability of the system, a high-level distribution equipment is provided with a doubled transformer, a state contact and an operating mechanism, and the conventional power system load switching control device cannot play the role of the double redundancy distribution equipment.
Disclosure of Invention
The utility model aims to provide a modularized hardware full-redundancy load switching management device so as to improve the reliability and stability of power system load switching.
The technical scheme of the utility model is as follows: a modularized hardware full-redundancy load switching management device comprises a main control unit and a redundancy control unit;
The main control unit is used for load switching management and comprises a first power supply module, a first CPU module, a first redundancy module, a first alternating current detection module, a first switching value detection module and a first output control module; the power demand of each load is detected, and the load loaded in the next step is judged according to a preset strategy. The main control unit has high reliability and computing power, and can accurately evaluate the power supply capacity of each power supply.
The redundancy control unit provides complete redundancy backup for the control function of the load switching management process and comprises a second power supply module, a second CPU module, a second redundancy module, a second alternating current detection module, a second switching value detection module and a second output control module; when the main control unit fails, the redundant control unit can immediately take over the function of load management according to a redundant mechanism (such as the mutual sending state of two redundant modules and the main control sending locking signal), and automatically switch to the main control unit, so that the smooth running of load switching is ensured.
The first redundancy module and the second redundancy module provide a state interaction channel and a function interaction channel of the main control unit and the redundancy control unit.
Further, the main control unit is connected with an external main power supply system, a standby power supply system and a load switch through a first connecting line to form a first power supply state monitoring loop;
The redundant control unit is connected with an external main power supply system, an external standby power supply system and the load switch through a second connecting line to form a second power supply state monitoring loop.
Further, the first switching value detection module and the first output control module are used for realizing connection between the load switch and the main power supply system or the standby power supply system and controlling transfer of the load switch between the main power supply system and the standby power supply system.
Further, the second switching value detection module and the second output control module are used for realizing connection between the load switch and the main power supply system or the standby power supply system and controlling transfer of the load switch between the main power supply system and the standby power supply system.
The beneficial effects of the utility model are as follows: the utility model provides a modularization hardware full redundancy's load switching management device, through the collaborative work of above-mentioned subassembly, realized the reliable transfer of load between two paths of power. By using the hardware full-redundancy control unit and the load interface unit, the device provides full backup for the load switching process, and improves the reliability and stability of load switching.
The first power supply module and the second power supply module provide working power supply input of the load switching management device, and acquire energy from an independent operation power supply system for the load switching management device to operate.
The main control unit and the redundant control unit are respectively connected with an external main power supply system, a standby power supply system and two mutually independent interfaces on the load switch by adopting two independent connecting lines, so that the power supply state monitoring loop is completely redundant.
Drawings
Fig. 1 is a schematic structural diagram of a modular hardware fully redundant load switching management device. The substation is a device for monitoring the upper level, and does not belong to the load switching management device of the utility model, and the device of the utility model can work independently.
Fig. 2 is a practical architecture diagram of a modular hardware fully redundant load switching management device, labeled with the connection relationship between the device of the present utility model and an external main power system, a backup power system, and a load switch.
In the figure: 1 is a main control unit, 11 is a first power module, 12 is a first CPU module, 13 is a first redundancy module, 14 is a first alternating current detection module, 15 is a first switching value detection module, and 16 is a first output control module;
2 is a redundancy control unit, 21 is a second power module, 22 is a second CPU module, 23 is a second redundancy module, 24 is a second ac detection module, 25 is a second switching value detection module, and 26 is a second output control module.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a modular hardware fully redundant load switching management device includes a main control unit 1 and a redundant control unit 2.
The main control unit 1 is used for load switching management, and comprises a first power supply module 11, a first CPU module 12, a first redundancy module 13, a first alternating current detection module 14, a first switching value detection module 15 and a first output control module 16. The power demand of each load is detected, and the load loaded in the next step is judged according to a preset strategy. The main control unit has high reliability and computing power, and can accurately evaluate the power supply capacity of each power supply. The main control unit 1 is connected with an external main power supply system, a standby power supply system and a load switch through a first connecting line to form a first power supply state monitoring loop. The first switching value detecting module 15 and the first output control module 16 are used for realizing connection between the load switch and the main power supply system or the standby power supply system, and controlling transfer of the load switch between the main power supply system and the standby power supply system.
The redundancy control unit 2 provides a complete redundancy backup for the control function of the load switching management process, and comprises a second power supply module 21, a second CPU module 22, a second redundancy module 23, a second alternating current detection module 24, a second switching value detection module 25 and a second output control module 26. When the main control unit fails, the redundant control unit can immediately take over the function of load management according to a redundant mechanism (such as the mutual sending state of two redundant modules and the main control sending locking signal), and automatically switch to the main control unit, so that the smooth running of load switching is ensured. The redundant control unit 2 is connected with an external main power supply system, a standby power supply system and a load switch through a second connecting line to form a second power supply state monitoring loop. The second switching value detecting module 25 and the second output control module 26 are used for realizing connection between the load switch and the main power supply system or the standby power supply system, and controlling transfer of the load switch between the main power supply system and the standby power supply system.
The first redundancy module 13 and the second redundancy module 23 provide a status interaction and a functional interaction channel for the main control unit 1 and the redundant control unit 2.
The first power supply module and the second power supply module provide working power supply input of the load switching management device, and acquire energy from an independent operation power supply system for the load switching management device to operate.
The main control unit and the redundant control unit are respectively connected with an external main power supply system, a standby power supply system and two mutually independent interfaces on the load switch by adopting two independent connecting lines, so that the power supply state monitoring loop is completely redundant.
According to the modularized hardware full-redundancy load switching management device, through the cooperative work of the components, the load is reliably transferred between two paths of power supplies. By using the hardware full-redundancy control unit and the load interface unit, the device provides full backup for the load switching process, and improves the reliability and stability of load switching.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (4)
1. A modularized hardware full-redundancy load switching management device is characterized in that: comprises a main control unit (1) and a redundant control unit (2);
The main control unit (1) is used for load switching management and comprises a first power supply module (11), a first CPU module (12), a first redundancy module (13), a first alternating current detection module (14), a first switching value detection module (15) and a first output control module (16);
The redundancy control unit (2) provides complete redundancy backup for the control function of the load switching management process and comprises a second power supply module (21), a second CPU module (22), a second redundancy module (23), a second alternating current detection module (24), a second switching value detection module (25) and a second output control module (26);
The first redundancy module (13) and the second redundancy module (23) provide a state interaction and function interaction channel for the main control unit (1) and the redundancy control unit (2).
2. The modular hardware fully redundant load switching management device of claim 1, wherein: the main control unit (1) is connected with an external main power supply system, a standby power supply system and a load switch through a first connecting line to form a first power supply state monitoring loop;
The redundant control unit (2) is connected with an external main power supply system, an external standby power supply system and the load switch through a second connecting line to form a second power supply state monitoring loop.
3. A modular hardware fully redundant load switching management device according to claim 1 or 2, characterized in that: the first switching value detection module (15) and the first output control module (16) are used for realizing connection between the load switch and the main power supply system or the standby power supply system and controlling transfer of the load switch between the main power supply system and the standby power supply system.
4. A modular hardware fully redundant load switching management device according to claim 1 or 2, characterized in that: the second switching value detection module (25) and the second output control module (26) are used for realizing connection between the load switch and the main power supply system or the standby power supply system and controlling transfer of the load switch between the main power supply system and the standby power supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322980496.0U CN221080980U (en) | 2023-11-06 | 2023-11-06 | Load switching management device of full redundancy of modularized hardware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322980496.0U CN221080980U (en) | 2023-11-06 | 2023-11-06 | Load switching management device of full redundancy of modularized hardware |
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| CN221080980U true CN221080980U (en) | 2024-06-04 |
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| CN202322980496.0U Active CN221080980U (en) | 2023-11-06 | 2023-11-06 | Load switching management device of full redundancy of modularized hardware |
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- 2023-11-06 CN CN202322980496.0U patent/CN221080980U/en active Active
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