EPE Association: EPE 1995 - 05 - Lecture Session L2a: NEW COMPONENTS

EPE 1995 - 05 - Lecture Session L2a: NEW COMPONENTS
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   A 1000 A 2500 V PRESSURE MOUNT RC-IGBT
By M. Hiyoshi; S. Yanagisawa; K. Nishitani; K. Kotake; H. Matsuda; S. Teramae; Y. Baba [View]
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Abstract: We have developed a lOOO A 2500 V pressure mount RC-IGBT to be used for traction inverter applications and so on. To ensure reliability of thermal fatigue and power cycling, this RC-IGBT has a pressure mount package which is very similar to that of a conventional 75mm GTO. This RC-IGBT contains multipie IGBT chips and FWD (Free Wheeling Diode) chips, and these chips are compactly mounted on a molybdenum plate. In order to press these chips uniformly, we have newly designed an emitter copper electrode. As a result of operation test, this RC-IGBT shows higher operation performance than that of a conventional GTO. In addition it shows high reliability performance equal to that of a conventional GTO. A typical value for tum-off losses (Eoff) was 1.2J at Vcc = I5OO V and Ic = IOOO A for a device with a saturation voltage of 5.O V at IOOO A without snubber. A typical value for turn on losses (Eon) was O.4J at Vcc = 1200 V and Ic = 1000 A. The RC-IGBT could be used under the condition of three times the operating frequency of an equivalent GTO. Furthermore the result of thermal fatigue test shows that the RC-IGBT meets the requirements of reliability for traction inverter applications and other tough applications.

   3300 V IGBT MODULE FOR TRACTION APPLICATION
By H. Brunner; M. Hierholzer; T. Laska; A. Porst; R. Spanke [View]
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Abstract: IGBT's with blocking voltage-values of 600V, 1200Vand 1600Vare available for several applications. In traction application the 600V and 750V DC-mains are widely distributed. The I500V DC-mains becomes more and more interest in Asia, South America and in Europe. While 1600V IGBT-modules meet the requirements in 750V-DC mains application, there is no alternative to GTO's for higher voltages. This paper describes a 3300V IGBT-module for applications in diesel-electric trains, high speed trains and underground / suburban trains, the latter ones operating directly on the 1500V DC-mains with motor power ratings up to 1.5 MW. 3-level inverters with 3300V IGBT's allow operation at 3000V DC mains or at 2300V AC lines in industrial converters, a widely distributed line voltage in North America.

   RELIABILITY OF THE 400A IGBT MODULES FOR TRACTION CONVERTERS CONTRIBUTION ON THE POWER THERMAL FATIGUE INFLUENCE ON LIFE EXPECTANCY
By G. Coquery; R. Lallemand; D. Wagner; P. Gibard [View]
[Download]

Abstract: With standard high power IGBT modules, a new packaging technology, using internal soldered electrical contact instead of pressed contact, appears to design the traction converters. This paper presents accelerated tests of power thermal cycling on more than 30 IGBT modules from three manufacturers, to estimate the influent parameters on the life expectancy in traction working conditions. Also several test conditions are changed, as variation of the junction temperature, heating current, maximal junction temperature. To clarify the behaviour of this complex technology module, a qualitative analysis of the thermal stress is proposed. The conditions of tests, the criteria of failures and the methodology of measurement are discussed. The results are presented with signiticative types of failures and some analysis of the INRETS tests. Failures on direct wire bond with high current density are discussed.

   High Power IGBT Converters with new Gate Drive and Protection Circuit
By S. Gediga; R. Marquardt; R. Sommer [View]
[Download]

Abstract: IGBT-converters for universal use in high power traction applications have been developed. Key point of this development is a new gate drive and protection concept. The new gate drive circuit makes it possible to control di/dt at turn on/turn off and limit overvoltage and overcurrent by the IGBT itself. No snubber circuits or transient suppressor diodes are needed, neither in normal operation nor in case of short circuit being turned off. Applications in Converters up to 720 kV A with paralleled IGBTs and even with series connected IGBTs have been realized and successfully tested. Results of measurements are given, which demonstrate the good switching characteristics and safe operation under overload or fault conditions of these converters.

EPE 1995 - 05 - Lecture Session L2a: NEW COMPONENTS
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1995 - Conference > EPE 1995 - 05 - Lecture Session L2a: NEW COMPONENTS
	[return to parent folder]

	A 1000 A 2500 V PRESSURE MOUNT RC-IGBT By M. Hiyoshi; S. Yanagisawa; K. Nishitani; K. Kotake; H. Matsuda; S. Teramae; Y. Baba	[View] [Download]
Abstract: We have developed a lOOO A 2500 V pressure mount RC-IGBT to be used for traction inverter applications and so on. To ensure reliability of thermal fatigue and power cycling, this RC-IGBT has a pressure mount package which is very similar to that of a conventional 75mm GTO. This RC-IGBT contains multipie IGBT chips and FWD (Free Wheeling Diode) chips, and these chips are compactly mounted on a molybdenum plate. In order to press these chips uniformly, we have newly designed an emitter copper electrode. As a result of operation test, this RC-IGBT shows higher operation performance than that of a conventional GTO. In addition it shows high reliability performance equal to that of a conventional GTO. A typical value for tum-off losses (Eoff) was 1.2J at Vcc = I5OO V and Ic = IOOO A for a device with a saturation voltage of 5.O V at IOOO A without snubber. A typical value for turn on losses (Eon) was O.4J at Vcc = 1200 V and Ic = 1000 A. The RC-IGBT could be used under the condition of three times the operating frequency of an equivalent GTO. Furthermore the result of thermal fatigue test shows that the RC-IGBT meets the requirements of reliability for traction inverter applications and other tough applications.

	3300 V IGBT MODULE FOR TRACTION APPLICATION By H. Brunner; M. Hierholzer; T. Laska; A. Porst; R. Spanke	[View] [Download]
Abstract: IGBT's with blocking voltage-values of 600V, 1200Vand 1600Vare available for several applications. In traction application the 600V and 750V DC-mains are widely distributed. The I500V DC-mains becomes more and more interest in Asia, South America and in Europe. While 1600V IGBT-modules meet the requirements in 750V-DC mains application, there is no alternative to GTO's for higher voltages. This paper describes a 3300V IGBT-module for applications in diesel-electric trains, high speed trains and underground / suburban trains, the latter ones operating directly on the 1500V DC-mains with motor power ratings up to 1.5 MW. 3-level inverters with 3300V IGBT's allow operation at 3000V DC mains or at 2300V AC lines in industrial converters, a widely distributed line voltage in North America.

	RELIABILITY OF THE 400A IGBT MODULES FOR TRACTION CONVERTERS CONTRIBUTION ON THE POWER THERMAL FATIGUE INFLUENCE ON LIFE EXPECTANCY By G. Coquery; R. Lallemand; D. Wagner; P. Gibard	[View] [Download]
Abstract: With standard high power IGBT modules, a new packaging technology, using internal soldered electrical contact instead of pressed contact, appears to design the traction converters. This paper presents accelerated tests of power thermal cycling on more than 30 IGBT modules from three manufacturers, to estimate the influent parameters on the life expectancy in traction working conditions. Also several test conditions are changed, as variation of the junction temperature, heating current, maximal junction temperature. To clarify the behaviour of this complex technology module, a qualitative analysis of the thermal stress is proposed. The conditions of tests, the criteria of failures and the methodology of measurement are discussed. The results are presented with signiticative types of failures and some analysis of the INRETS tests. Failures on direct wire bond with high current density are discussed.

	High Power IGBT Converters with new Gate Drive and Protection Circuit By S. Gediga; R. Marquardt; R. Sommer	[View] [Download]
Abstract: IGBT-converters for universal use in high power traction applications have been developed. Key point of this development is a new gate drive and protection concept. The new gate drive circuit makes it possible to control di/dt at turn on/turn off and limit overvoltage and overcurrent by the IGBT itself. No snubber circuits or transient suppressor diodes are needed, neither in normal operation nor in case of short circuit being turned off. Applications in Converters up to 720 kV A with paralleled IGBTs and even with series connected IGBTs have been realized and successfully tested. Results of measurements are given, which demonstrate the good switching characteristics and safe operation under overload or fault conditions of these converters.