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Title: Pole-phase modulated toroidal winding for an induction machine

Abstract

A stator (10) for an induction machine for a vehicle has a cylindrical core (12) with inner and outer slots (26, 28) extending longitudinally along the inner and outer peripheries between the end faces (22, 24). Each outer slot is associated with several adjacent inner slots. A plurality of toroidal coils (14) are wound about the core and laid in the inner and outer slots. Each coil occupies a single inner slot and is laid in the associated outer slot thereby minimizing the distance the coil extends from the end faces and minimizing the length of the induction machine. The toroidal coils are configured for an arbitrary pole phase modulation wherein the coils are configured with variable numbers of phases and poles for providing maximum torque for cranking and switchable to a another phase and pole configuration for alternator operation. An adaptor ring (36) circumferentially positioned about the stator improves mechanical strength, and provides a coolant channel manifold (34) for removing heat produced in stator windings during operation.

Inventors:
 [1];  [2]
  1. (Saline, MI)
  2. (Weinheim, DE)
Issue Date:
Research Org.:
Midwest Research Institute
OSTI Identifier:
872634
Patent Number(s):
5977679
Application Number:
09/034,946
Assignee:
Ford Global Technologies, Inc. (Dearborn, MI) NREL
DOE Contract Number:  
AC36-83CH10093; ZCB-4-13032-02
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
pole-phase; modulated; toroidal; winding; induction; machine; stator; 10; vehicle; cylindrical; core; 12; inner; outer; slots; 26; 28; extending; longitudinally; peripheries; 22; 24; slot; associated; adjacent; plurality; coils; 14; wound; laid; coil; occupies; single; minimizing; distance; extends; length; configured; arbitrary; pole; phase; modulation; variable; phases; poles; providing; maximum; torque; cranking; switchable; configuration; alternator; operation; adaptor; 36; circumferentially; positioned; improves; mechanical; strength; provides; coolant; channel; manifold; 34; removing; heat; produced; windings; phase modulated; stator windings; heat produced; coolant channel; extending longitudinally; stator winding; mechanical strength; removing heat; induction machine; phase modulation; phase modulate; toroidal coil; adjacent inner; /310/

Citation Formats

Miller, John Michael, and Ostovic, Vlado. Pole-phase modulated toroidal winding for an induction machine. United States: N. p., 1999. Web.
Miller, John Michael, & Ostovic, Vlado. Pole-phase modulated toroidal winding for an induction machine. United States.
Miller, John Michael, and Ostovic, Vlado. Tue . "Pole-phase modulated toroidal winding for an induction machine". United States. https://www.osti.gov/servlets/purl/872634.
@article{osti_872634,
title = {Pole-phase modulated toroidal winding for an induction machine},
author = {Miller, John Michael and Ostovic, Vlado},
abstractNote = {A stator (10) for an induction machine for a vehicle has a cylindrical core (12) with inner and outer slots (26, 28) extending longitudinally along the inner and outer peripheries between the end faces (22, 24). Each outer slot is associated with several adjacent inner slots. A plurality of toroidal coils (14) are wound about the core and laid in the inner and outer slots. Each coil occupies a single inner slot and is laid in the associated outer slot thereby minimizing the distance the coil extends from the end faces and minimizing the length of the induction machine. The toroidal coils are configured for an arbitrary pole phase modulation wherein the coils are configured with variable numbers of phases and poles for providing maximum torque for cranking and switchable to a another phase and pole configuration for alternator operation. An adaptor ring (36) circumferentially positioned about the stator improves mechanical strength, and provides a coolant channel manifold (34) for removing heat produced in stator windings during operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {11}
}

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