Multi-Conductor Stator Winding Segmentation for Compact Thickness
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Solution Overview
Problem
Creating an electrically balanced stator winding that can be incorporated into more compact stator cores is challenging, particularly in reducing thickness while maintaining efficiency.
Innovation Solution
A method involving the formation of multi-conductor windings with specific terminal leads, interlacing conductors to form woven sections, and connecting them in a manner that allows for radial expansion into stator slots, enabling the creation of a twelve-conductor stator winding that can be efficiently installed into compact stator cores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional winding methods are used to maintain electrical balance, then electrical efficiency is improved, but stator thickness is increased and compactness is reduced
Solution Approach 1:
The winding is divided into multiple segments or layers that can be independently arranged and optimized. Each segment contains specific conductors that are placed in particular stator slots to achieve both electrical balance and compact thickness, resolving the contradiction between maintaining efficiency and reducing size
Solution Approach 2:
Multiple winding layers are nested within the stator structure, with inner and outer windings arranged in specific configurations. This nesting allows for compact thickness while maintaining the electrical balance through proper arrangement of conductors across different layers and slots
2Adaptability or versatility
If stator thickness is reduced for compactness, then adaptability to compact applications is improved, but achieving electrical balance becomes more difficult
Solution Approach 1:
Different regions of the winding structure are assigned different qualities or configurations. Specific conductors are placed in specific slots with particular arrangements that optimize local electrical characteristics, enabling overall electrical balance to be achieved within a compact thickness through localized optimization throughout the structure
3Loss of energy
If complex winding arrangements are used to achieve electrical balance, then electrical efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The complex winding is segmented into manageable sections or modules that can be manufactured and assembled separately. This segmentation reduces manufacturing complexity by breaking down the complex arrangement into simpler, repeatable units while maintaining the overall electrical balance through systematic arrangement of these segments
Solution Approach 2:
Winding segments or conductor groups are pre-assembled or pre-positioned in specific configurations before final installation into the stator. This preliminary action simplifies the manufacturing process by preparing components in advance with optimal arrangements, reducing the complexity of final assembly while ensuring electrical balance is achieved
Data Source
AI summary
A method of installing a winding in a stator includes forming a first multi-conductor winding including a first plurality of terminal leads and a second plurality of terminal leads, forming a second multi-conductor winding including a third plurality of terminal leads and a fourth plurality of terminal leads, introducing the first multi-conductor winding into a plurality of stator slots of a stator body, introducing the second multi-conductor winding into the plurality of stator slots of the stator body radially inwardly of the first multi-conductor winding, and connecting the second plurality of terminal leads with the third plurality of terminal leads to form a twelve conductor stator winding.