Control Module for Electrical Energy Accumulator with Limiting Device
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Solution Overview
Problem
Existing systems for electrical energy storage devices struggle with rapid charging and universal supply reliability across multiple parallel consumers, particularly in preventing overloading and damage during charging and discharging.
Innovation Solution
A system with a limiting device and control module that allows for quick charging and discharging by limiting the maximum charging current and discharging current, respectively, using a switchable mode that adapts parameters to ensure safe operation and efficient energy distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a low current is used for charging the energy storage device, then the energy source can reliably operate other consumers connected to the supply line, but the charging time becomes excessively long
Solution Approach 1:
The control module dynamically adjusts the charging current based on the connection state of the limiting device. When the limiting device is connected, the control module operates in quick charge mode with higher current. When the limiting device is not connected, the control module switches to normal charge mode with lower current to ensure reliable operation of other consumers. This dynamic switching resolves the contradiction between charging speed and system reliability.
Solution Approach 2:
The system changes the operating parameters (charging current) based on the configuration state. The control module detects whether the limiting device is connected and accordingly changes the current parameter from a low value (for reliability) to a high value (for speed). This parameter adaptation allows the system to achieve both reliability and fast charging under different operating conditions.
2Productivity
If a high current is used for rapid charging of the energy storage device, then the charging speed increases, but the energy source may be overloaded or other consumers may be affected
Solution Approach 1:
The limiting device acts as an intermediary that enables the control module to safely operate in quick charge mode. When the limiting device is connected, it provides the necessary current limiting function, allowing the control module to draw high charging current without overloading the energy source or affecting other consumers. Without the limiting device, the control module operates in normal mode with lower current. This intermediary mechanism resolves the contradiction between charging speed and overloading prevention.
3Adaptability or versatility
If the control module is designed for universal use on any supply line, then the adaptability increases, but the risk of damage during quick charging and discharging increases
Solution Approach 1:
The control module performs a preliminary check to detect whether the limiting device is connected before initiating quick charge or quick discharge operations. This preliminary detection prevents the control module from operating in high-current mode without the necessary protection, thereby avoiding damage. The system only enables quick operations when the limiting device is present, ensuring safe universal operation across different supply line configurations.
Solution Approach 2:
The control module continuously monitors the connection state of the limiting device and adjusts its operating mode accordingly. This feedback mechanism ensures that the control module never operates in a dangerous state where high current could cause damage without the limiting device providing protection. The feedback loop maintains the invariant that quick charge/discharge operations only occur when the limiting device is connected, resolving the contradiction between universality and damage prevention.
Data Source
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AI summary
The invention relates to a control module (2) for an electrical energy accumulator (3) for operating on a supply cable which is designed for parallel connection of a plurality of loads, having a supply connection (4) for connecting to a supply cable and a control unit (5) for controlled charging and/or discharging of an electrical energy accumulator (3) by means of the supply connection (4), wherein the control module (2) is or can be connected to the electrical energy accumulator (3), the control module (2) can be connected to a limiting device, and the control unit (5) is designed to perform a rapid charge and/or rapid discharge of the energy accumulator (3) when the control module (2) is connected to the limiting device. The invention also relates to a method for operating such a control module (2), an energy accumulator unit (1) having an electrical energy accumulator (3) and such a control module (2), as well as an uninterruptible power supply unit (10) having an energy accumulator (3) and such a control module (2).