Switched Battery Storage Blocks for Reliable Multi-Current Output
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Solution Overview
Problem
Existing switched battery techniques lack reliability in voltage quality upon cell failure, are not optimized for energy consumption, and are not suitable for industrial use due to excessive power consumption and reduced autonomy.
Innovation Solution
An electrical energy storage device with a plurality of switched elementary cells, a master block, and a supply block, utilizing electronically-controllable switches and connection sub-blocks to manage voltage and frequency, allowing independent connection and disconnection of storage blocks, and incorporating an optocoupler for energy-efficient control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all controllers of individual cells are powered to enable full functionality, then the system can manage all cells, but energy consumption increases and autonomy is reduced
Solution Approach 1:
The battery system is divided into multiple independent storage blocks, each with its own controller. This segmentation allows the master controller to power only the controllers of blocks that are currently in use, rather than keeping all cell controllers powered continuously. The master block receives commands and distributes power selectively to relevant storage block controllers, reducing overall energy consumption while maintaining the ability to manage all cells when needed.
2Adaptability or versatility
If switched battery techniques are used to generate multiple currents, then versatility is improved, but reliability upon cell failure deteriorates
Solution Approach 1:
The system is divided into a master block and multiple independent storage blocks, each with its own controller. This segmentation isolates failures to individual storage blocks, preventing them from affecting the entire system. The master controller can identify failed blocks and adjust the switching strategy to maintain reliable voltage output from remaining functional blocks, thereby maintaining both versatility and reliability.
Solution Approach 2:
The master controller continuously monitors the state of charge and health of each storage block and dynamically adjusts the switching strategy based on real-time feedback. When cell failures are detected, the controller adapts by redistributing the switching workload among functional blocks, maintaining voltage quality and system reliability while still enabling multiple current generation capabilities.
3Device complexity
If a single electric current is generated by combining cell currents, then the system is simpler to control, but the ability to generate multiple currents simultaneously is limited
Solution Approach 1:
The system is segmented into independent storage blocks with individual controllers that can operate autonomously. Each storage block can generate current independently, and the master controller coordinates their operation to produce multiple currents simultaneously. This segmentation maintains relative control simplicity while enabling versatile multi-current generation capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides reliable, efficient, and modular power supply capable of generating multiple currents simultaneously with optimized energy consumption, ensuring easy maintenance and management in case of cell failures.
Implementation Method 1
a sub-block for connection to a bus of the storage block and the master block with each other through an optocoupler
Data Source
AI summary
A device for storing electrical energy, including a plurality of switched individual cells contained inside a storage pack, a master block and a supply block supplying a DC voltage to the storage pack and the master block. In such a storage device, the storage pack is subdivided into a plurality of storage blocks, each storage block including a plurality of switched cells and a control logic sub-block for controlling each switched cell of the storage block. Each storage block furthermore also includes at least one connection sub-block for connection to a bus, each connection sub-block including an electronic switch having two positions, one position, called connected position, in which the electronic switch is open so that the storage block supplies the bus with a voltage, and one position, called short-circuit position, in which the electronic switch is closed.