Linear Transformer Core Flux Control via Feedback
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Solution Overview
Problem
Existing electromagnetic devices face challenges in controlling magnetic flux levels effectively, particularly in transformer configurations, which can lead to damage from high voltage and current surges, and inefficiencies in energy transfer due to varying magnetic resistance.
Innovation Solution
A linear transformer design with a magnetic core flux sensor assembly and core flux control system that adjusts electrical current through the primary winding to control magnetic flux levels, using a core flux sensor to detect flux levels and a core flux control device to adjust current flow, ensuring efficient energy transfer and minimizing copper losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If current in the magnetic core increases to store more energy, then energy storage increases, but the device becomes vulnerable to high voltage and current surges that can damage the load
Solution Approach 1:
The patent implements a feedback control system where a sensor detects the actual magnetic flux level in the core and feeds this information back to a controller. The controller adjusts the current supplied to the primary winding to maintain the magnetic flux at a predetermined safe level, preventing over-saturation and protecting against voltage surges while allowing optimal energy storage.
Solution Approach 2:
The patent dynamically changes the electrical parameters (current, voltage) supplied to the primary winding based on the detected magnetic flux level. By adjusting these parameters in real-time, the system optimizes energy storage while preventing harmful surge conditions, resolving the contradiction between maximizing energy storage and preventing damage.
2Adaptability or versatility
If magnetic flux level varies due to changing current or voltage from the power source, then energy transfer adapts to load conditions, but control over magnetic flux becomes difficult leading to potential damage
Solution Approach 1:
The feedback control system continuously monitors the magnetic flux level and automatically adjusts the primary winding current to maintain the flux at the predetermined level. This eliminates the difficulty of manual control while preserving adaptability, as the system automatically responds to changing load conditions and power source variations.
Solution Approach 2:
The system performs self-regulation by using the sensor to detect flux levels and automatically adjusting the current without external intervention. This self-service mechanism maintains optimal magnetic flux control while adapting to varying operating conditions, resolving the contradiction between adaptability and ease of operation.
3Ease of operation
If a compensation winding arrangement is added to control magnetic flux, then flux control capability improves, but device complexity increases
Solution Approach 1:
The patent introduces a sensor as an intermediary element that detects magnetic flux levels and provides feedback to the controller. This intermediary enables precise flux control without requiring complex compensation winding arrangements, as the sensor-based feedback system achieves control with simpler structural modifications.
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
The solution achieves highly efficient energy transfer with low copper losses, reduced volume and weight, and effective control of magnetic flux, preventing damage from voltage surges while maintaining a predetermined magnetic flux level.
Implementation Method 1
a magnetic flux sensor to detect a magnetic flux level in the magnetic core
Implementation Method 2
a magnetic flux flow may be generated in response to an electrical current flowing through a conductor winding associated with the magnetic core
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An electromagnetic device may include a magnetic flux core and an opening through the magnetic flux core. A conductor winding may be received in the opening and extend through the magnetic flux core. An electrical current flowing through the conductor winding generates a magnetic field about the conductor winding and a magnetic flux flow about the opening in the magnetic flux core. The electromagnetic device may also include a core flux sensor arrangement to detect a magnetic flux level in the magnetic flux core. The electromagnetic device may additionally include a core flux control system configured to adjust the electrical current flowing through the conductor winding to control the magnetic flux level in the magnetic flux core.