A DC power supply system for substation and its control method
A technology of a DC power supply system and a control method, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of shortened service life, waste pollution, and large battery area, and achieve extended service life, excellent performance, well-structured effect
Inactive Publication Date: 2011-12-07
南瑞(武汉)电气设备与工程能效测评中
View PDF5 Cites 28 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is: the present invention applies the lithium iron phosphate battery to the DC power supply system for the substation, solves the problems of the battery occupying a large area and serious waste pollution in the existing DC power supply system for the substation, and adopts an intelligent coordination control algorithm at the same time Solve the problems of long-term floating charge of lithium iron phosphate battery to shorten the service life and real automatic online maintenance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] Hereinafter, the present invention will be further described through specific embodiments in conjunction with the accompanying drawings.
[0032] see figure 1 , in this embodiment, the whole system adopts the idea of centralized management and distributed control. The DC operation power supply module, UPS power supply module, inverter power supply module, communication power supply module and lithium iron phosphate energy storage module are connected to the centralized monitoring system through the CAN bus. on the module. The lithium iron phosphate energy storage module is connected to the DC bus through the first relay switch KM1; each power module is connected to the DC bus through the second to fifth relay switches KM2~KM5, and each power module uses a lithium iron phosphate battery as backup battery.
[0033] Each module in the DC power system can realize redundant backup of the system by increasing the number of modules connected in parallel to the DC bus, such...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Login to view more Abstract
The invention provides a direct current power supply system for a transformer substation and a control method thereof. The direct current power supply system comprises a centralized monitoring module, a direct current operation power module, an uninterruptible power supply (UPS) power module, an inversion power supply module, a communication power supply module and a lithium iron phosphate energy storage module; each module of the direct current power supply system is connected to a common direct current bus through a relay switch, and redundancy backup of each module is realized in a mode that each module is connected in parallel to the common direct current bus through a multi-submodule; the modules of the direct current power supply system are connected with the centralized monitoring module through a controller area network (CAN) communication bus; the centralized monitoring module collects the running state information of each module and manages the modules of the system uniformly; and a battery is charged or discharged slightly through intelligent coordination control, and on-line automatic maintenance of the battery is realized. The invention has the advantages that: the system has high reliability, high shock load resistance, no maintenance, small floor area, energy conservation and environmental friendliness; and the service life of the battery is prolonged and the performance of the battery is improved by the intelligent coordination control method.
Description
technical field [0001] The invention relates to an electric power supply system and its control method, in particular to a DC power supply system for a substation based on a lithium iron phosphate battery and its control method, which is suitable for online automatic maintenance-free control of a DC power supply system for a substation. The system is mainly used for It is used in various substations or switch stations such as power plants, hydropower stations and industrial enterprise power distribution, and can also be extended to DC power supply systems for communication base stations or buildings. Background technique [0002] The DC operating power supply, UPS power supply, inverter power supply, and communication power supply in the existing station DC power supply system are all equipped with their own backup batteries, and the batteries basically use valve-regulated lead-acid batteries. It has been significantly improved, but there are still defects such as low energy...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more Patent Type & Authority Applications(China)
IPC IPC(8): H02J11/00H02J7/34H02J7/00
Inventor 张良华刘亮刘飞李爱魁
Owner 南瑞(武汉)电气设备与工程能效测评中
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap