Variable Flux Memory Motor Mode Shifting With Magnetization Control
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Solution Overview
Problem
Existing solutions fail to provide means for real-time or near real-time shifting of operation modes in synchronous electric motors like Variable-Flux Memory Motors (VFMM) based on external inputs, and do not compensate for performance losses during mode shifts.
Innovation Solution
A system and method for shifting VFMM operation modes based on external inputs or environmental parameters, using man-machine interfaces and sensors to control a controller that adjusts the magnetization states of VFMMs to desired operation modes, allowing asynchronous switching to maintain power output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If synchronous electric motors operate in a fixed operation mode, then the motor structure is simple and reliable, but the motor cannot adapt to different performance requirements (high-torque low-speed during acceleration vs. low-torque high-speed during cruising)
Solution Approach 1:
The patent implements dynamic operation mode shifting by enabling the VFMM to transition between different magnetization states in real-time based on performance requirements. The controller dynamically adjusts the magnetization level of the rotor, allowing the motor to adapt from high-torque low-speed mode during acceleration to low-torque high-speed mode during cruising, thereby resolving the contradiction between adaptability and fixed structure.
Solution Approach 2:
The patent changes the magnetic flux parameter of the VFMM by controlling the magnetization state of the rotor. By varying the magnetization level (from partially magnetized to fully magnetized states), the motor can achieve different operation modes without physical structural changes, thus improving adaptability while maintaining relatively simple motor structure.
2Adaptability or versatility
If operation modes are shifted without proper compensation techniques, then mode switching can be achieved, but performance loss occurs during shifting
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing optimal current waveforms and magnetization states for different operation modes in the controller. Before mode switching occurs, the controller prepares the appropriate current profiles to ensure smooth transitions. This preliminary preparation prevents performance loss during mode shifting by ensuring that the motor is already primed for the target operation mode.
Solution Approach 2:
The patent implements feedback control by continuously monitoring the motor's operating conditions and adjusting the magnetization state accordingly. The controller receives feedback from sensors about the current operation mode and performance parameters, then makes real-time adjustments to maintain optimal performance during mode transitions, preventing performance degradation.
3Adaptability or versatility
If operation modes cannot be shifted based on external inputs, then the control system is simple, but the motor cannot respond to user requirements or environmental conditions
Solution Approach 1:
The patent uses feedback from external inputs (user commands via man-machine interface or environmental data from sensors) to adjust the motor's operation mode. The controller processes these external signals and translates them into appropriate magnetization state changes, enabling the motor to respond adaptively to external conditions while maintaining a relatively simple control architecture through efficient signal processing.
Solution Approach 2:
The patent makes the control system universal by designing it to accept multiple types of external inputs (user commands, sensor data, environmental parameters) and process them through a unified control algorithm. This multi-functional input handling capability allows the motor to respond to various external conditions without requiring separate control systems for each input type, thus improving adaptability without proportionally increasing complexity.
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
Enables versatile and efficient operation mode shifting in VFMMs, maintaining high efficiency and power output by compensating for temporary losses during mode transitions, enhancing user experience and performance in various conditions.
Implementation Method 1
one or more VFMMs that convert electrical power to kinetic energy
Implementation Method 2
determining a set of magnetization states of each VFMMs from the one or more VFMMs corresponding to the target operation mode
Data Source
AI summary
A system for shifting operation modes of Variable Flux Memory Motor (VFMM) from external inputs includes one or more VFMMs that convert electrical power to kinetic energy, the one or more VFMMs being configured to shift to any one of a plurality of operation modes, one or more man-machine interfaces that receive one or more external inputs from a user, the one or more external inputs being indicative of a target operation mode from the plurality of operation modes selected by the user, and a controller that shifts the operation mode of the one or more VFMMs to the target operation mode based on the one or more external inputs received from the one or more man-machine interfaces.