Non-contact Transformer Air Gap Detection via Circuit Parameters
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Solution Overview
Problem
The existing wireless energy transmission systems using non-contact transformers face inefficiencies and instability due to variations in air gap and dislocation between primary and secondary windings, requiring rapid and accurate detection methods to maintain stable energy transmission.
Innovation Solution
A detection method and device that acquires circuit parameters, compares them with pre-stored data to determine air gap and dislocation information, using parameters like coupling coefficients, phase angles, and voltage/current values to assess the transformer's condition and adjust accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If additional detection devices are used to detect air gap and dislocation information, then detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The system uses its own existing circuit parameters (coupling coefficient, phase angle, voltage, current) to detect air gap and dislocation information, without requiring external detection devices. The transformer system detects itself through parameters already being measured for energy transmission control
Solution Approach 2:
The existing circuit parameters serve dual purposes: both for energy transmission control and for detecting air gap/dislocation information. The same measurement systems used for power control are also used for positional detection, eliminating the need for separate detection devices
2Productivity
If manual detection methods are used for air gap and dislocation, then device complexity is reduced, but productivity and detection speed decrease
Solution Approach 1:
The patent replaces manual/mechanical detection methods with automated electrical measurement systems. Circuit parameters are automatically measured and processed by control systems, eliminating the need for manual measurement tools and operations
Solution Approach 2:
The system continuously monitors circuit parameters and uses feedback control to detect changes in air gap and dislocation. The measured parameters are compared against reference values, and the system automatically adjusts or alerts based on detected deviations
3Reliability
If air gap and dislocation are not monitored, then device complexity is reduced, but energy transmission efficiency and system reliability deteriorate
Solution Approach 1:
The system implements continuous monitoring of circuit parameters that reflect air gap and dislocation conditions. This feedback mechanism allows real-time detection of positional changes, enabling the system to maintain optimal operation or trigger alerts before failures occur
Solution Approach 2:
The transformer system monitors its own operational parameters to detect positional deviations. By using its own electrical characteristics (coupling coefficient, phase angle) as detection signals, the system achieves self-diagnosis capability without external monitoring equipment
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 allows for efficient and stable energy transmission by determining air gap and dislocation without additional detection devices, reducing manpower and resource costs while simplifying the detection process and improving efficiency.
Implementation Method 1
A non-contact transformer serves as a main part capable of wirelessly transmitting energy in the wireless energy transmission system
Data Source
AI summary
Disclosed is a detection method, a detection device and a computer storage medium for a non-contact transformer. The method includes that: a circuit parameter is acquired; the acquired circuit parameter is compared with a pre-stored circuit parameter corresponding to known air gap and dislocation distance information; and air gap and dislocation distance information of the non-contact transformer in a wireless energy transmission system are determined according to a comparison result.