Cascaded battery energy storage system and maintenance method therefor
A battery energy storage system, battery energy storage technology, applied in the direction of electric energy storage system, flexible AC transmission system, electrical components, etc., can solve the problem of short life of battery pack, low utilization rate of energy storage, increase of operating cost of energy storage kWh and other issues to achieve the effect of prolonging life, reducing operating costs, and improving energy storage utilization
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0036] figure 1 A structural diagram of a cascaded battery energy storage system provided by the present invention. The cascaded battery energy storage system includes: a battery management system (BMS) 10 and 3 sets of battery energy storage units, in order to distinguish the 3 sets of battery energy storage units, figure 1 11, 12 and 13, respectively. The battery energy storage unit 11 includes a plurality of battery packs A1, A2, ... AN connected in parallel, and an H-bridge converter correspondingly connected to each battery pack A1, A2, ... AN. The battery energy storage unit 12 includes a plurality of battery packs B1, B2, ... BN connected in parallel, and an H-bridge converter correspondingly connected to each battery pack B1, B2, ... BN. The battery energy storage unit 13 includes a plurality of battery packs C1, C2, ...CN connected in parallel, and an H-bridge converter connected correspondingly to each battery pack C1, C2, ...CN.
[0037] In addition to the above ...
Embodiment approach
[0041] As a preferred embodiment, the cascaded battery energy storage system further includes: a filter unit, the filter unit includes: 3 inductors;
[0042] Wherein, the inductor corresponds to each phase of the three-phase busbar and the battery energy storage unit one by one; one end of the inductor is correspondingly connected to the three-phase busbar, and the other end of the inductor is connected to the corresponding H-bridge converter.
[0043] like figure 1 As shown, an inductance is provided between the three-phase busbar and each battery energy storage unit, specifically: an inductance L is provided between each H-bridge converter in the battery energy storage unit 11 and the A phase A 1. An inductance L is arranged between each H-bridge converter in the battery energy storage unit 12 and the B-phase B 1. An inductance L is arranged between each H-bridge converter in the battery energy storage unit 13 and the C-phase C .
[0044] By increasing the inductance L A...
Embodiment 2
[0046] figure 2 It is a flowchart of a maintenance method for a cascaded battery energy storage system provided by the present invention. Maintenance methods for cascaded battery energy storage systems, including:
[0047] S10: The battery management system sends battery charge state information, name and address to the energy management system and the main controller.
[0048] S11: The energy management system sends instructions to the main controller according to the state of charge information of the battery.
[0049] S12: The main controller receives the command, and sends an isolation command to the corresponding H-bridge converter according to the content contained in the command and the battery charge state information, name and address sent by the battery management system.
[0050] S13: the H-bridge converter executes the actions included in the isolation command, so as to isolate the battery pack that needs to be maintained.
[0051] S14: The main controller send...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com