High power density adjustable speed drive topology with medium frequency transformer isolation

Jose Juan Sandoval; Harish Krishnamoorthy; Prasad Enjeti; Sewan Choi

doi:10.1109/ECCE.2015.7310638

High power density adjustable speed drive topology with medium frequency transformer isolation

Jose Juan Sandoval, Harish Krishnamoorthy, Prasad Enjeti, Sewan Choi

Dept. of Electrical and Information Engineering

Texas A&M University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

This paper presents a new adjustable speed drive (ASD) topology that employs medium frequency (MF) transformer isolation. The proposed system consists of a new 3-phase push-pull based AC to DC rectifier with a MF AC link employing only two active switches. A single 5-limb multi-winding MF transformer is employed for isolation. The secondary side of the transformer is connected in a zig-zag configuration and is fed to 3-phase diode rectifiers, realizing 12-pulse rectifier operation. The advantages of the proposed system include high power density due to MF transformer isolation, low active switch count, and a simple modulation scheme. Furthermore, zig-zag transformer connection helps to balance leakage inductance on the secondary side. A 690 V_LL, 100 HP design example, detailed analysis and extended simulation results are presented to validate the performance of the proposed approach.

Original language	English
Title of host publication	2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	6986-6992
Number of pages	7
ISBN (Electronic)	9781467371506
DOIs	https://doi.org/10.1109/ECCE.2015.7310638
State	Published - 27 Oct 2015
Event	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada Duration: 20 Sep 2015 → 24 Sep 2015

Publication series

Name	2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

Conference

Conference	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Country/Territory	Canada
City	Montreal
Period	20/09/15 → 24/09/15

Keywords

adjustable speed drive
multi-winding medium frequency transformer
power density

Access to Document

10.1109/ECCE.2015.7310638

Cite this

Sandoval, J. J., Krishnamoorthy, H., Enjeti, P., & Choi, S. (2015). High power density adjustable speed drive topology with medium frequency transformer isolation. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015 (pp. 6986-6992). Article 7310638 (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2015.7310638

Sandoval, Jose Juan ; Krishnamoorthy, Harish ; Enjeti, Prasad et al. / High power density adjustable speed drive topology with medium frequency transformer isolation. 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 6986-6992 (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015).

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title = "High power density adjustable speed drive topology with medium frequency transformer isolation",

abstract = "This paper presents a new adjustable speed drive (ASD) topology that employs medium frequency (MF) transformer isolation. The proposed system consists of a new 3-phase push-pull based AC to DC rectifier with a MF AC link employing only two active switches. A single 5-limb multi-winding MF transformer is employed for isolation. The secondary side of the transformer is connected in a zig-zag configuration and is fed to 3-phase diode rectifiers, realizing 12-pulse rectifier operation. The advantages of the proposed system include high power density due to MF transformer isolation, low active switch count, and a simple modulation scheme. Furthermore, zig-zag transformer connection helps to balance leakage inductance on the secondary side. A 690 VLL, 100 HP design example, detailed analysis and extended simulation results are presented to validate the performance of the proposed approach.",

keywords = "adjustable speed drive, multi-winding medium frequency transformer, power density",

author = "Sandoval, \{Jose Juan\} and Harish Krishnamoorthy and Prasad Enjeti and Sewan Choi",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 ; Conference date: 20-09-2015 Through 24-09-2015",

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language = "English",

series = "2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015",

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Sandoval, JJ, Krishnamoorthy, H, Enjeti, P & Choi, S 2015, High power density adjustable speed drive topology with medium frequency transformer isolation. in 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015., 7310638, 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015, Institute of Electrical and Electronics Engineers Inc., pp. 6986-6992, 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015, Montreal, Canada, 20/09/15. https://doi.org/10.1109/ECCE.2015.7310638

High power density adjustable speed drive topology with medium frequency transformer isolation. / Sandoval, Jose Juan; Krishnamoorthy, Harish; Enjeti, Prasad et al.
2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 6986-6992 7310638 (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - High power density adjustable speed drive topology with medium frequency transformer isolation

AU - Sandoval, Jose Juan

AU - Krishnamoorthy, Harish

AU - Enjeti, Prasad

AU - Choi, Sewan

PY - 2015/10/27

Y1 - 2015/10/27

N2 - This paper presents a new adjustable speed drive (ASD) topology that employs medium frequency (MF) transformer isolation. The proposed system consists of a new 3-phase push-pull based AC to DC rectifier with a MF AC link employing only two active switches. A single 5-limb multi-winding MF transformer is employed for isolation. The secondary side of the transformer is connected in a zig-zag configuration and is fed to 3-phase diode rectifiers, realizing 12-pulse rectifier operation. The advantages of the proposed system include high power density due to MF transformer isolation, low active switch count, and a simple modulation scheme. Furthermore, zig-zag transformer connection helps to balance leakage inductance on the secondary side. A 690 VLL, 100 HP design example, detailed analysis and extended simulation results are presented to validate the performance of the proposed approach.

AB - This paper presents a new adjustable speed drive (ASD) topology that employs medium frequency (MF) transformer isolation. The proposed system consists of a new 3-phase push-pull based AC to DC rectifier with a MF AC link employing only two active switches. A single 5-limb multi-winding MF transformer is employed for isolation. The secondary side of the transformer is connected in a zig-zag configuration and is fed to 3-phase diode rectifiers, realizing 12-pulse rectifier operation. The advantages of the proposed system include high power density due to MF transformer isolation, low active switch count, and a simple modulation scheme. Furthermore, zig-zag transformer connection helps to balance leakage inductance on the secondary side. A 690 VLL, 100 HP design example, detailed analysis and extended simulation results are presented to validate the performance of the proposed approach.

KW - adjustable speed drive

KW - multi-winding medium frequency transformer

KW - power density

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M3 - Conference contribution

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T3 - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

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BT - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015

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ER -

Sandoval JJ, Krishnamoorthy H, Enjeti P, Choi S. High power density adjustable speed drive topology with medium frequency transformer isolation. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 6986-6992. 7310638. (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015). doi: 10.1109/ECCE.2015.7310638

High power density adjustable speed drive topology with medium frequency transformer isolation

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