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Lifetime Predictions of Medium Voltage Motor Coil Insulation When Operated by PWM From SiC Inverters

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Lifetime Predictions of Medium Voltage Motor Coil Insulation When Operated by PWM From SiC Inverters/ Benjamin G Sirizzotti.
作者:	Sirizzotti, Benjamin G.,
面頁冊數:	1 electronic resource (148 pages)
附註:	Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
Contained By:	Dissertations Abstracts International86-11B.
標題:	Applied physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32000083
ISBN:	9798315702160

Lifetime Predictions of Medium Voltage Motor Coil Insulation When Operated by PWM From SiC Inverters
Sirizzotti, Benjamin G.,

Lifetime Predictions of Medium Voltage Motor Coil Insulation When Operated by PWM From SiC Inverters [electronic resource] /Benjamin G Sirizzotti. - 1 electronic resource (148 pages)

Source: Dissertations Abstracts International, Volume: 86-11, Section: B.

As the push towards higher energy densities and efficiencies for electric machines continues it is imperative that all parts of the motor drive system are adapted to new developments and technologies. Recent developments in the semiconductor field have resulted in new wide bad gap (WBG) semiconductors such as silicon carbide (SiC) that are able to operate at higher voltages, switching frequencies, and efficiencies than traditional devices. These devices present a wonderful opportunity for all power inverters, but especially for medium voltage (MV) applications. However, these new WBG devices present new and increased stress for all parts of the machine lifetime including the winding insulation. To this end, it has already been observed that traditional understandings of insulation lifetime originally developed for Si inverter operation are illequipped for the greater stresses provided by WBG inverters especially in consideration of multi-stress models. Therefore, it is necessary to create new models for insulation lifetime and behavior that account for the increased multi-stress nature of operation with WBG devices. This dissertation presents a detailed modeling method developed for the investigation of insulation stress and lifetime prediction for MV form wound motor coils using a combination of finite element analysis (FEA) and SPICE modeling, and an experimental testbed and results for the accelerated aging of MV form wound coils for the validation of the proposed model and investigation of the electrical and thermal stress impact on insulation life. The work presented here is a key contribution in developing accurate lifetime and stress models for stator insulation for the prediction of stator failure which is of great interest to industry due to the high cost of machine downtime.

English

ISBN: 9798315702160Subjects--Topical Terms:

1181953
Applied physics.
Subjects--Index Terms:

Lifetime prediction

Lifetime Predictions of Medium Voltage Motor Coil Insulation When Operated by PWM From SiC Inverters
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520 # $a As the push towards higher energy densities and efficiencies for electric machines continues it is imperative that all parts of the motor drive system are adapted to new developments and technologies. Recent developments in the semiconductor field have resulted in new wide bad gap (WBG) semiconductors such as silicon carbide (SiC) that are able to operate at higher voltages, switching frequencies, and efficiencies than traditional devices. These devices present a wonderful opportunity for all power inverters, but especially for medium voltage (MV) applications. However, these new WBG devices present new and increased stress for all parts of the machine lifetime including the winding insulation. To this end, it has already been observed that traditional understandings of insulation lifetime originally developed for Si inverter operation are illequipped for the greater stresses provided by WBG inverters especially in consideration of multi-stress models. Therefore, it is necessary to create new models for insulation lifetime and behavior that account for the increased multi-stress nature of operation with WBG devices. This dissertation presents a detailed modeling method developed for the investigation of insulation stress and lifetime prediction for MV form wound motor coils using a combination of finite element analysis (FEA) and SPICE modeling, and an experimental testbed and results for the accelerated aging of MV form wound coils for the validation of the proposed model and investigation of the electrical and thermal stress impact on insulation life. The work presented here is a key contribution in developing accurate lifetime and stress models for stator insulation for the prediction of stator failure which is of great interest to industry due to the high cost of machine downtime.
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650 # 4 $a Computer engineering. $3 569006
650 # 4 $a Electrical engineering. $3 596380
653 # # $a Lifetime prediction
653 # # $a Stator insulation
653 # # $a Electric machines
690 $a 0544
690 $a 0464
690 $a 0215
710 2 # $a Baylor University. $b Engineering and Computer Science. $3 1464732
720 1 $a Agamloh, Emmanuel $e degree supervisor.
720 1 $a von Jouanne, Annette $e degree supervisor.
773 0 # $t Dissertations Abstracts International $g 86-11B.
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791 $a Ph.D.
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