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Title: Enhanced Rotary Transformer-Based Field Excitation System for Wound Rotor Synchronous Motor

Abstract

Wound rotor synchronous motors are being increasingly considered for electric vehicle traction applications. In this regard, the rotary transformer-based field excitation system is considered one of the most viable option for the rotor winding excitation. For such applications, key performance indicators for the rotary transformer-based field excitation system include: maximum speed, power transfer capability, size and weight, manufacturing cost and ease of control. These indicators on the other hand are affected by design choices such as mechanical and magnetic air-gap lengths, use of ferrites in the rotor of the rotary transformer and reactive power compensation. This paper evaluates the performance of the field excitation system based on two different designs of the rotary transformer: a conventional design and a proposed design. Particularly, the effect of various compensation types on the power transfer capability of the two design types is evaluated. It is shown that unlike the conventional design, the proposed design can take advantage of resonant compensation circuits both to enhance its power transfer capability and to ease the control. Taking the same space constraints, winding window areas, and number of turns for the two types of design, the condition necessary for compensation to enhance the performance of the fieldmore » excitation system is established.« less

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]
  1. Tennessee Tech University
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1570121
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: IEEE Energy Conversion Congress and Exposition (ECCE 2019) - Baltimore, Maryland, United States of America - 9/29/2019 4:00:00 AM-10/3/2019 4:00:00 AM
Country of Publication:
United States
Language:
English

Citation Formats

Haruna, Josiah, Raminosoa, Tsarafidy, and Wilkins, Jon. Enhanced Rotary Transformer-Based Field Excitation System for Wound Rotor Synchronous Motor. United States: N. p., 2019. Web.
Haruna, Josiah, Raminosoa, Tsarafidy, & Wilkins, Jon. Enhanced Rotary Transformer-Based Field Excitation System for Wound Rotor Synchronous Motor. United States.
Haruna, Josiah, Raminosoa, Tsarafidy, and Wilkins, Jon. Sun . "Enhanced Rotary Transformer-Based Field Excitation System for Wound Rotor Synchronous Motor". United States. https://www.osti.gov/servlets/purl/1570121.
@article{osti_1570121,
title = {Enhanced Rotary Transformer-Based Field Excitation System for Wound Rotor Synchronous Motor},
author = {Haruna, Josiah and Raminosoa, Tsarafidy and Wilkins, Jon},
abstractNote = {Wound rotor synchronous motors are being increasingly considered for electric vehicle traction applications. In this regard, the rotary transformer-based field excitation system is considered one of the most viable option for the rotor winding excitation. For such applications, key performance indicators for the rotary transformer-based field excitation system include: maximum speed, power transfer capability, size and weight, manufacturing cost and ease of control. These indicators on the other hand are affected by design choices such as mechanical and magnetic air-gap lengths, use of ferrites in the rotor of the rotary transformer and reactive power compensation. This paper evaluates the performance of the field excitation system based on two different designs of the rotary transformer: a conventional design and a proposed design. Particularly, the effect of various compensation types on the power transfer capability of the two design types is evaluated. It is shown that unlike the conventional design, the proposed design can take advantage of resonant compensation circuits both to enhance its power transfer capability and to ease the control. Taking the same space constraints, winding window areas, and number of turns for the two types of design, the condition necessary for compensation to enhance the performance of the field excitation system is established.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

Conference:
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