Busbar Matrix Energy Supply Device for Flexible Current Control
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Solution Overview
Problem
Existing electrical energy supply devices lack flexibility in configuring output current strength and are costly due to the need for free configurability, with limited control over output current and high production costs.
Innovation Solution
The energy supply device employs a busbar matrix with multiple busbars for flexible energy exchange, dividing usage units into strands connected in series with DC voltage converters and galvanically separable switching units, allowing for dynamic redistribution of electrical energy and selection based on suitability criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple series circuits with replacement fuel cell stacks are used to provide larger operating current, then the power output is improved, but the device complexity and production cost increase due to the need for multiple switches and free configurability
Solution Approach 1:
The fuel cell stacks are divided into modular groups, with each group having its own parallel circuit. Within each parallel circuit, fuel cell stacks are connected in series. This segmentation allows independent control of each parallel circuit while maintaining overall system power output, reducing the complexity of managing all stacks individually.
Solution Approach 2:
The system dynamically reconfigures the circuit topology by switching between series and parallel connections of fuel cell stack groups based on power demands. This dynamic reconfiguration allows the system to provide larger operating current when needed while simplifying the control structure compared to completely free configurability.
2Power
If multiple series circuits are connected in parallel to provide larger operating current, then the power output is improved, but the production cost increases
Solution Approach 1:
The fuel cell system is segmented into standardized parallel circuits with fixed series connections within each circuit. This modular segmentation enables standardized manufacturing processes and simplifies assembly, reducing production costs compared to custom-configured systems while still allowing parallel circuits to be combined for higher power output.
3Adaptability or versatility
If control of output current strength is possible within each individual fuel cell stack for free configurability, then the adaptability is improved, but the production cost increases
Solution Approach 1:
Each parallel circuit is designed as a universal module that can operate independently or in combination with other circuits. The series connection configuration within each parallel circuit provides a standardized interface and control mechanism, eliminating the need for custom control systems in each individual stack while maintaining system adaptability through modular组合.
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
This configuration enables flexible and efficient connection of usage units to appliances, allowing for variable power profiles and current profiles, reducing production costs and enhancing energy exchange efficiency.
Implementation Method 1
Within the strand, the series circuit is connected across a DC voltage converter (DC/DC converter) to one of the strand ends
Data Source
AI summary
The disclosure relates to an electrical energy supply device having usage units, wherein each usage unit is designed to generate or to buffer electrical energy. The disclosure proposes that the energy supply device carries out an energy exchange through a busbar assembly, wherein busbars of the busbar assembly form a busbar matrix, and in the energy supply device the usage units are divided up into strands and in each strand the usage units are hooked up in a series circuit and the series circuit is connected across a DC voltage converter to one strand end of the strand and each strand end of the strand is connected across a respective galvanically separable switching unit.