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Title: Permanent magnet machine with windings having strand transposition

Abstract

This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coil provide transposition to reduce circulating current loss. The increased fill factor reduces further current losses. Such a stator is used in a dual rotor, permanent magnet machine, for example, in a compressor pump, wind turbine gearbox, wind turbine rotor.

Inventors:
 [1];  [2]
  1. Clifton Park, NY
  2. Scotia, NY
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
986560
Patent Number(s):
7,521,835
Application Number:
11/426,756; TRN: US201017%%405
Assignee:
General Electric Company (Niskayuna, NY) NREL
DOE Contract Number:  
AC36-99GO10337
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; COMPRESSORS; FILL FACTORS; PERMANENT MAGNETS; STATORS; WIND TURBINES

Citation Formats

Qu, Ronghai, and Jansen, Patrick Lee. Permanent magnet machine with windings having strand transposition. United States: N. p., 2009. Web.
Qu, Ronghai, & Jansen, Patrick Lee. Permanent magnet machine with windings having strand transposition. United States.
Qu, Ronghai, and Jansen, Patrick Lee. Tue . "Permanent magnet machine with windings having strand transposition". United States. https://www.osti.gov/servlets/purl/986560.
@article{osti_986560,
title = {Permanent magnet machine with windings having strand transposition},
author = {Qu, Ronghai and Jansen, Patrick Lee},
abstractNote = {This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coil provide transposition to reduce circulating current loss. The increased fill factor reduces further current losses. Such a stator is used in a dual rotor, permanent magnet machine, for example, in a compressor pump, wind turbine gearbox, wind turbine rotor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {4}
}

Patent:

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