Linear Transport Coil Selection for Reliable Wireless Power Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing linear transport systems face inefficiencies in energy transfer between stationary and movable units, leading to unnecessary energy consumption and potential communication disruptions.
Innovation Solution
A method and system for optimizing energy transfer by selecting and controlling energy-transmitting coils based on the position of the movable unit, adjusting energy quantity and power through identification and control signals, and utilizing a central controller to manage energy distribution efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all energy-transmitting coils are continuously energized to ensure adequate power supply to the movable unit, then the power supply reliability is improved, but the energy consumption increases unnecessarily
Solution Approach 1:
The controller determines the position of the movable unit in advance and selects the appropriate energy-transmitting coil(s) before energy transfer is needed. This preliminary positioning and selection ensures that the correct coil is energized only when the movable unit is in the appropriate position, eliminating unnecessary energy consumption while maintaining reliable power supply.
Solution Approach 2:
The system dynamically adjusts which energy-transmitting coils are energized based on the real-time position of the movable unit. Instead of continuous energization of all coils, the system transitions between different coil configurations as the movable unit moves along the guide rail, optimizing energy usage while ensuring continuous power availability.
2Reliability
If multiple energy-transmitting coils are energized simultaneously to maintain communication links, then the communication reliability is improved, but the energy consumption increases
Solution Approach 1:
The system applies different energization states to different coils based on their spatial relationship with the movable unit. Only the coil(s) in local proximity to the movable unit are energized for both energy transfer and communication, while distant coils remain de-energized. This localized approach maintains communication reliability where needed while eliminating energy waste elsewhere.
3Productivity
If the movable unit moves quickly through the transport system to increase productivity, then the production output is improved, but the energy transfer efficiency may deteriorate due to reduced coupling time
Solution Approach 1:
The controller determines the position of the movable unit in advance and pre-selects the optimal energy-transmitting coil configuration before the unit arrives. This allows the system to prepare the magnetic field in advance, ensuring efficient energy transfer even when the movable unit moves quickly through the system.
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
Enhances energy efficiency by minimizing unnecessary energy consumption and maintaining communication links while ensuring adequate power supply to tools on the movable unit.
Implementation Method 1
If the drive coils of the stationary units are energized, a magnetic force may thereby be exerted on the magnets of the rotor and thus the rotor and thus the movable unit may be moved along the guide rail
Implementation Method 2
The stationary units each comprise one or a plurality of energy-transmitting coils, and the movable unit comprises at least one energy-receiving coil
Data Source
AI summary
A method is provided for transferring energy from a stationary unit to a movable unit of a linear transport system. The system includes a guide rail for guiding the movable unit, a plurality of stationary units, a controller, and a linear motor for driving the movable unit along the guide rail. The linear motor includes a stator and a rotor. The stator comprises the stationary units, each having one or more drive coils. The rotor is arranged on the movable unit, and has one or a more magnets. In addition, the stationary units each have one or more energy-transmitting coils, and the movable unit has at least one energy-receiving coil. The controller determines position data for the energy-receiving coil, selects at least one energy-transmitting coil based on the position data, and outputs a control signal to the stationary unit, with identification information for identifying the energy-transmitting coil.