Power Storage Module Insulation Segmentation for High Voltage
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Solution Overview
Problem
Existing power storage systems struggle to output high voltage, which is required in applications like railway systems, necessitating a solution for constructing a power storage system capable of generating significant power.
Innovation Solution
A power storage module and system design that includes a battery section, controller, communication unit, and insulators with varying withstand voltages, allowing for high voltage output by connecting multiple modules in series and using a control method to manage discharge current within an upper limit value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple power storage modules are connected in series to output high voltage, then the power output capability is improved, but the insulation requirement between control components and communication components increases
Solution Approach 1:
The power storage module is divided into distinct functional sections with separate insulators. The first insulator isolates the controller from the communication unit, while the second insulator isolates the communication unit from the battery section. This segmentation allows high voltage output through series connection while maintaining reliable electrical isolation between different potential levels.
Solution Approach 2:
The communication unit is positioned as an intermediary component between the controller and the battery section, with the second insulator serving as a mediator to provide electrical isolation. This intermediary structure enables high voltage power transmission while protecting low-voltage control and communication components from high voltage exposure.
2Reliability
If the withstand voltage of the first insulator is increased to improve insulation reliability, then the insulation performance is improved, but the cost and complexity of the insulator increases
Solution Approach 1:
Different insulators are assigned different withstand voltage specifications based on their local requirements. The first insulator (between controller and communication unit) has a lower withstand voltage requirement, while the second insulator (between communication unit and battery section) has a higher withstand voltage requirement. This local differentiation optimizes both reliability and complexity by matching insulator specifications to actual electrical stress conditions.
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
Enables the output of high voltage power storage systems, ensuring reliable power supply to high-demand applications while maintaining efficient discharge current management.
Implementation Method 1
a first insulator that insulates the controller from the communication unit
Implementation Method 2
a second insulator having a withstand voltage higher than a withstand voltage of the first insulator
Data Source
AI summary
A power storage apparatus includes a plurality of power storage modules connected in series and a control apparatus that controls each power storage module. The power storage module includes a battery section, a controller, a communication unit, a first insulator that insulates the controller from the communication unit, and a second insulator having a withstand voltage higher than a withstand voltage of the first insulator. The second insulator is provided between the communication unit of each power storage module and the control apparatus.