Magnetic Control Circuit Separation Slit for Alternator Sectors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric machines with multi-channel designs face challenges in controllability and redundancy, particularly in permanent magnet machines, where magnetic flux interference between sectors can hinder independent operation and fault tolerance.
Innovation Solution
The design incorporates a stator with non-overlapping sectors, multiple windings, and magnetic circuits, including a saturation control assembly with slits to separate magnetic flux, allowing for independent control and redundancy by segregating magnetic circuits and using a tertiary magnetic circuit to manage saturation and inductance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple windings and magnetic circuits are integrated in a multi-channel design, then redundancy and independent operation are improved, but magnetic flux interference between sectors increases
Solution Approach 1:
The stator is divided into multiple non-overlapping sectors with physical separation. Each sector contains its own windings and magnetic circuits, creating independent channels that can operate autonomously. This segmentation prevents magnetic flux interference between sectors while maintaining redundancy, as each sector functions as an independent generator channel.
Solution Approach 2:
Magnetic circuit separation slits are introduced as intermediary elements between adjacent sectors. These slits act as magnetic flux barriers that prevent cross-sector flux interference while allowing each sector to maintain its own magnetic circuits. The slits enable independent operation of each channel without compromising the overall machine structure.
2Ease of operation
If magnetic circuit separation slits are introduced to reduce flux interference, then controllability is improved, but device complexity increases
Solution Approach 1:
The introduction of magnetic circuit separation slits segments the stator structure into distinct sectors. Each slit creates a clear boundary between adjacent magnetic circuits, enabling independent control of each sector. The slits are simple geometric features that can be integrated into the stator manufacturing process without requiring complex additional components.
3Adaptability or versatility
If sectors are made non-overlapping with physical separation, then independent operation is improved, but manufacturing complexity increases
Solution Approach 1:
The stator is manufactured as a segmented structure with non-overlapping sectors separated by magnetic circuit separation slits. Each sector can be prepared independently, and the slits provide natural separation boundaries. This segmentation approach allows for modular assembly while maintaining structural integrity, as the slits are simple features that can be incorporated during standard manufacturing processes.
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 configuration enhances controllability, maintains operation in case of faults, and reduces magnetic flux interference, enabling efficient and redundant operation of electric alternators/motors with improved power regulation and reliability.
Implementation Method 1
at least one slit between each sector of the stator adjacent to the respective third magnetic circuits, each slit separating the third magnetic circuits of adjacent sectors and thereby adapted to impede magnetic flux crossing between the third magnetic circuit of each sector
Implementation Method 2
a rotor having a plurality of permanent magnets; at least a first winding disposed in a plurality of said first and second slots
Implementation Method 3
a rotor having a plurality of permanent magnets
Implementation Method 4
the saturation control assembly of each sector being operatively associated with the corresponding second circuit and operable to controllably vary a saturation level of a portion of its associated second magnetic circuit
Data Source
AI summary
An electric alternator/motor having a stator with at least two non-overlapping sectors is provided. Each sector includes a first winding, first and second magnetic circuits and a saturation control assembly. A cross-talk reduction feature, such as a peripheral slit is provided between each sector of the stator for impeding magnetic flux crossing between the sectors.