Dynamic Coupling Control in Non-Contact Magnetic Power Transmission
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Solution Overview
Problem
In oil drilling, the optimal coupling coefficient of non-contact transmission magnetic mechanisms is often shifted due to extreme downhole environments, leading to reduced energy transfer efficiency, as the fixed coupling coefficient design fails to adapt to changing high temperature and high pressure conditions.
Innovation Solution
A dynamic adjustment system for coupling coefficients is introduced, featuring a compensation coil that modifies the magnetic field intensity between the transmitting and receiving coils by adjusting current magnitude and direction, ensuring optimal energy transfer through real-time monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed coupling coefficient design is used for non-contact transmission magnetic mechanism, then the device complexity is reduced and ease of manufacture is improved, but the adaptability to changing downhole environments (high temperature and high pressure) deteriorates, leading to reduced energy transfer efficiency
Solution Approach 1:
The patent applies the Dynamics principle by introducing a dynamic adjustment mechanism for the coupling coefficient. The magnetic mechanism transitions from a fixed coupling coefficient design to one that can dynamically adapt to changing downhole environments. The system continuously monitors environmental parameters (temperature, pressure) and adjusts the coupling coefficient in real-time to maintain optimal energy transfer efficiency, thereby resolving the contradiction between ease of manufacture and adaptability.
Solution Approach 2:
The patent applies the Parameter changes principle by modifying the coupling coefficient parameter based on environmental conditions. The system changes the coupling coefficient parameter dynamically in response to temperature and pressure variations in the downhole environment. This parameter adjustment mechanism allows the magnetic mechanism to maintain optimal performance across varying conditions without requiring complex redesign or manual intervention.
2Productivity
If the coupling coefficient is optimized for specific downhole environments during product development, then the energy transfer efficiency is maximized under those conditions, but the reliability under varying extreme environments deteriorates due to the shifted optimal coupling coefficient
Solution Approach 1:
The patent applies the Feedback principle by implementing a closed-loop control system that continuously monitors environmental parameters (temperature, pressure) and energy transfer efficiency. The system uses this feedback information to dynamically adjust the coupling coefficient, ensuring that the magnetic mechanism maintains optimal performance across varying downhole conditions. This feedback mechanism resolves the contradiction by enabling the system to adapt to environmental changes while maintaining high energy transfer efficiency and reliability.
Solution Approach 2:
The patent applies the Dynamics principle by transitioning from a static coupling coefficient optimized for specific conditions to a dynamic coupling coefficient that adapts to varying environments. The system continuously adjusts the coupling coefficient based on real-time environmental measurements, ensuring reliable high-efficiency operation across the full range of extreme downhole conditions rather than being optimized for a single operating point.
3Device complexity
If a non-contact transmission magnetic mechanism with fixed coupling coefficient is deployed, then the device complexity is minimized, but the loss of energy increases when the coupling coefficient deviates from optimal values due to environmental changes
Solution Approach 1:
The patent applies the Dynamics principle by introducing a dynamic adjustment capability to the magnetic mechanism. The system incorporates sensors to monitor environmental conditions and a control mechanism to adjust the coupling coefficient in real-time. This dynamic capability prevents energy loss that would occur with a fixed coupling coefficient design, while adding only minimal complexity compared to the energy waste avoided.
Solution Approach 2:
The patent applies the Self-service principle by enabling the magnetic mechanism to self-adjust its coupling coefficient based on environmental conditions. The system autonomously monitors temperature, pressure, and energy transfer efficiency, then automatically adjusts the coupling coefficient without external intervention. This self-service capability minimizes energy loss while keeping the control system relatively simple.
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 system maintains the non-contact transmission magnetic mechanism in the best energy efficiency state by dynamically adjusting the coupling coefficient, enhancing adaptability and efficiency in varying environments.
Implementation Method 1
non-contact power transmission transmits power and signals in a non-contact manner through electric field coupling
Implementation Method 2
the coupling coefficient is affected by parameters such as the core material, shape, and coil distance
Data Source
AI summary
A system for dynamically adjusting coupling coefficients of a non-contact transmission magnetic mechanism, wherein a power supply end is connected to a non-contact transmission electric energy conversion module and a magnetic field regulation electric conversion module respectively by means of an input power consumption measurement unit, the non-contact transmission electric energy conversion module is connected to a transmitting coil by means of a tuning wave-blocking circuit, a receiving coil is provided corresponding to the transmitting coil, the receiving coil is provided on the wave-blocking circuit, the wave-blocking circuit is connected to a load end by means of a rectifying and voltage stabilizing circuit and an output power consumption measurement module, signal loading and extraction modules having a controller and a signal modulation and demodulation module are connected in parallel to two ends of the transmitting coil and the receiving coil.