Energy Supply Device with Dynamic Switch Arrangement
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Solution Overview
Problem
Existing energy supply devices lack flexibility and integration capabilities, particularly in efficiently managing multiple terminal devices with varying power requirements and voltages, leading to inefficiencies and increased converter losses.
Innovation Solution
The energy supply device employs a switch arrangement that allows for multiple operating modes, including connecting direct current connections in parallel or series with voltage converters, enabling flexible operation and efficient power distribution by matching voltages and decoupling converters from the intermediate circuit, and utilizing bidirectional rectifiers for bi-directional energy flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed connection configuration is used between voltage converters and DC connections, then the device structure is simple, but the adaptability to different terminal devices is poor
Solution Approach 1:
The patent implements dynamic reconfigurability by introducing switch arrangements that allow the connection topology between voltage converters and DC connections to be changed during operation. The system can dynamically switch between series and parallel configurations, and selectively connect or disconnect voltage converters from the intermediate circuit, enabling adaptation to different terminal device requirements without fixed wiring constraints.
2Loss of energy
If multiple voltage converters operate independently, then each converter can be optimized for specific loads, but converter losses increase due to lack of coordination
Solution Approach 1:
The patent merges the operational control of multiple voltage converters through a common switch arrangement system that coordinates their connection to the intermediate circuit and DC connections. By enabling selective parallel operation of converters and coordinated switching, the system reduces redundant losses while maintaining the ability to independently configure converters for specific load requirements when needed.
3Productivity
If all DC connections are always connected to the intermediate circuit, then power distribution is simple, but the ability to optimize power flow and reduce losses is limited
Solution Approach 1:
The patent implements dynamic connection control where DC connections can be selectively connected or disconnected from the intermediate circuit based on operational requirements. The switch arrangements enable real-time reconfiguration of power flow paths, allowing the system to optimize efficiency by disconnecting idle or fully charged terminal devices while maintaining simple power distribution architecture through standardized switching mechanisms.
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 allows for high flexibility and integration, minimizing converter losses, optimizing power utilization, and enabling efficient energy supply to diverse terminal devices, including motor vehicles, photovoltaic systems, and building technologies, with the ability to feed back energy into the grid.
Implementation Method 1
a rectifier device for converting an alternating current supplied via the mains connection into a direct current in an intermediate circuit
Implementation Method 2
a number of voltage converters... each electrically connected at least temporarily to the intermediate circuit and are electrically connected at least temporarily to one DC connection
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to an energy supply device (1) for providing electrical energy to at least one terminal device, with a mains connection (2) for connecting the energy supply device (1) to an alternating current network and with a rectifier device (3) for converting an alternating current supplied via the mains connection (2) into a direct current in an intermediate circuit (5).The invention includes several voltage converters (6) and several DC connections (7), wherein the voltage converters (6) are each at least temporarily electrically connected to the intermediate circuit (5) and at least temporarily electrically connected to one of the multiple DC connections (7), wherein several of the DC connections (7) can be connected to the same voltage converter (6) and/or several of the voltage converters (6) can be connected to the same DC connection (7), and/or at least one of the DC connections (7) can be electrically connected via one of the voltage converters (6) to another, second DC connection (7). The invention further relates to a method for operating an energy supply device (1) for providing electrical energy to at least one terminal device.