Power Storage System

Organization Name

Inventor(s)

Yoshiaki Kikuchi of Toyota-shi Aichi-ken (JP)

Power Storage System - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240106254 titled 'Power Storage System

Simplified Explanation

The patent application describes a power storage system that can charge and discharge with an external system, consisting of first and second battery units connected in parallel, each with multiple battery packs connected to a power converter. A controller manages the operation of each power converter, with the second battery pack having higher internal resistance than the first. The controller selects two second battery packs to alternate between discharging and charging in a standby state.

The power storage system includes first and second battery units connected in parallel.
Each unit has multiple battery packs connected to a power converter.
The second battery pack has higher internal resistance than the first.
A controller manages the operation of each power converter.
Two second battery packs are selected to alternate between discharging and charging in a standby state.

Potential Applications

The technology can be applied in renewable energy systems, electric vehicles, and grid energy storage solutions.

Problems Solved

Efficient management of battery charging and discharging cycles, optimizing energy storage systems, and improving overall system performance.

Benefits

Enhanced energy storage efficiency, increased battery lifespan, and improved system reliability.

Potential Commercial Applications

Renewable energy storage solutions for residential and commercial use, electric vehicle charging infrastructure, and grid-scale energy storage projects.

Possible Prior Art

Similar technologies exist in the field of battery management systems for energy storage applications, but the specific method of alternating between two battery packs with different internal resistances may be novel.

What is the impact of this technology on renewable energy systems?

This technology can significantly improve the efficiency and reliability of renewable energy systems by optimizing the charging and discharging cycles of the battery units, ultimately increasing the overall performance of the system.

How does this innovation contribute to the sustainability of electric vehicles?

By efficiently managing the battery charging and discharging processes, this innovation can extend the lifespan of the battery packs in electric vehicles, reducing the need for frequent replacements and contributing to the overall sustainability of electric transportation.

Original Abstract Submitted

a power storage system performing charging and discharging with an external system includes first and second battery units connected in parallel and each including a plurality of battery packs connected in parallel to a power converter. the power storage system includes a controller controlling operation of each power converter. the first and second battery units include a first battery pack and a second battery pack higher in internal resistance than the first battery pack, as the plurality of battery packs. the controller selects two second battery packs from a plurality of second battery packs included in the power storage system. in a standby state where charging and discharging are not performed with the external system, the controller performs, at different timings, control to discharge one of the selected two second battery packs and thereby charge the other, and control to discharge the other and thereby charge the one.