Inductive Power Transfer Control for Coupling and Overvoltage Changes
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Solution Overview
Problem
Existing induction energy transfer systems suffer from long response times, low efficiency, and the risk of potential component damage due to overvoltages, primarily because they do not account for parameter changes during operation, such as self-inductance and energy demand, leading to reduced user-friendliness and safety.
Innovation Solution
The system includes a control unit that determines correction factors for parameters using coupling factors and equivalent impedance to dynamically adjust power supply based on real-time changes, ensuring precise control and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If parameters are assumed constant in induction energy transfer systems, then device complexity is reduced, but response time increases and efficiency decreases
Solution Approach 1:
The control unit continuously receives parameter information from the mounting unit and dynamically adjusts operating parameters based on detected changes. This feedback mechanism enables real-time adaptation to parameter variations, resolving the contradiction by maintaining fast response times without requiring overly complex manual parameter management.
Solution Approach 2:
The mounting unit automatically transmits parameter information to the control unit, and the control unit autonomously determines correction factors and adjusts operating parameters without user intervention. This self-service approach reduces the perceived complexity for users while maintaining rapid response to parameter changes.
2Ease of operation
If parameters are assumed constant, then ease of operation is improved, but efficiency of inductive power transfer decreases
Solution Approach 1:
The system continuously monitors parameter changes through automatic transmission from the mounting unit and adjusts operating parameters in real-time. This feedback loop maintains high efficiency by adapting to actual conditions while keeping the operation simple for users, as the system handles adjustments automatically.
Solution Approach 2:
The control unit dynamically modifies operating parameters based on detected parameter changes and calculated correction factors. This enables the system to maintain optimal efficiency under varying conditions while preserving ease of operation, as users need not manually adjust parameters.
3Device complexity
If parameters are not updated dynamically, then device complexity is reduced, but reliability decreases due to overvoltage risks
Solution Approach 1:
The control unit continuously receives parameter information and automatically adjusts operating parameters to prevent overvoltages and other harmful effects. This feedback-based protection mechanism enhances reliability by detecting and responding to parameter changes in real-time, while maintaining relatively simple device architecture through automated control.
Solution Approach 2:
The control unit proactively adjusts operating parameters in response to detected parameter changes before harmful effects such as overvoltages can occur. This preliminary protective action prevents damage to components while maintaining device simplicity through automated monitoring and adjustment.
4Productivity
If correction factors are determined dynamically, then productivity is improved through optimized power transfer, but device complexity increases
Solution Approach 1:
The control unit automatically receives parameter information, determines correction factors based on detected changes, and adjusts operating parameters accordingly. This automated feedback-based control enhances power transfer efficiency (productivity) while minimizing the increase in device complexity by using software-based control algorithms rather than additional hardware.
Solution Approach 2:
The system performs automatic parameter adjustment and correction factor determination without requiring complex external control mechanisms. The mounting unit and control unit work together autonomously to optimize power transfer, improving productivity while keeping the overall system complexity manageable through self-service operation.
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 approach enhances user-friendliness, efficiency, and safety by accurately detecting and responding to changes in inductive coupling, preventing overvoltages, and optimizing power adjustment.
Implementation Method 1
a supply unit (12) having at least one supply induction element (14) for the inductive provision of energy
Implementation Method 2
a receiving unit (22) having at least one receiving induction element (24) for receiving the inductively provided energy
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to an induction energy transmission system (10), in particular an induction cooking system, comprising: a supply unit (12) which has at least one supply induction element (14) for inductively providing energy; a control unit (16) for controlling the supply unit (12); and at least one positioned unit (18, 20) which has at least one receiving unit (22) comprising at least one receiving induction element (24) for receiving the inductively provided energy, the control unit (16) being provided to use a parameter set (36) to control the supply unit (12), and being provided to receive at least one parameter (26) of the parameter set (36) from the receiving unit (22). In order to improve ease of use, according to the invention the control unit (16) is provided to determine at least one correction factor (38) for at least one of the parameters (26, 28, 30) of the parameter set (36).