EPE Association: EPE 2005 - Topic 14-ETGa: Medium voltage converters 2

EPE 2005 - Topic 14-ETGa: Medium voltage converters 2
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2005 - Conference > EPE 2005 - Topic 14: POWER ELECTRONICS IN ELECTRICAL ENERGY GENERATING SYSTEMS > EPE 2005 - Topic 14-ETGa: Medium voltage converters 2

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   A modern low loss, high turn-off capability GCT-gate-drive concept
By GRUENING Horst; KOYANAGI Kimiyuki [View]
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Abstract: In GCT technology the gate drive has become a key component to widely determine the mechanical and electrical characteristics of the total power device. Based on recent improvements in switch-mode power supply technology, new circuit topology and mechanical design of GCT gate drivers has been developed to enhance GCT turn-off capability, reduce gate drive power dissipation and shrink the dimensions and the weight of the gate drivers. In order to enhance service life, by means of the new topology gate driver for GCT are realized without firmly attached electrolytic capacitors for the first time.

   Comparison of Power Semiconductor Utilization, Losses and Harmonic Spectra of State-of-the-Art 4.16kV Multi-Level Voltage Source Converters
By TALEB Tahar; KRUG Dietmar; BERNET Steffen; FAZEL Seyed Saeed [View]
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Abstract: This paper compares a Three-Level Neutral Point Clamped Voltage Source Converter (3L-NPC VSC), a Three-Level Flying Capacitor Voltage Source Converter (3L-FLC VSC), a Four-Level Flying Capacitor Voltage Source Converter (4L-FLC VSC) and Nine-Level-Series Connected H-Bridge Voltage Source Converter (9L-SCHB VSC) on the basis of state-of-the-art 6.5kV, 4.5kV and 1.7kV IGBTs for a 4.16kV medium voltage converter. The design of the power semiconductors, the installed switch power, converter losses, the semiconductor loss distribution, modulation strategies and the harmonic spectra are compared in detail.

   Low Power Converters for High Output Voltages
By KELLER Christian; JAKOB Roland [View]
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Abstract: The paper presents circuit topologies for medium voltage converters and investigates their suitability for high voltage low power applications with up to 4 MVA. For an example of an inverter for 6 kV motor voltage the four level floating capacitor topology was chosen. Advantages of this topology are the balanced power dissipation of the power semiconductor devices and direct voltage clamping of each power device. Details of the motor inverter design are presented.

EPE 2005 - Topic 14-ETGa: Medium voltage converters 2
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2005 - Conference > EPE 2005 - Topic 14: POWER ELECTRONICS IN ELECTRICAL ENERGY GENERATING SYSTEMS > EPE 2005 - Topic 14-ETGa: Medium voltage converters 2
	[return to parent folder]

	A modern low loss, high turn-off capability GCT-gate-drive concept By GRUENING Horst; KOYANAGI Kimiyuki	[View] [Download]
Abstract: In GCT technology the gate drive has become a key component to widely determine the mechanical and electrical characteristics of the total power device. Based on recent improvements in switch-mode power supply technology, new circuit topology and mechanical design of GCT gate drivers has been developed to enhance GCT turn-off capability, reduce gate drive power dissipation and shrink the dimensions and the weight of the gate drivers. In order to enhance service life, by means of the new topology gate driver for GCT are realized without firmly attached electrolytic capacitors for the first time.

	Comparison of Power Semiconductor Utilization, Losses and Harmonic Spectra of State-of-the-Art 4.16kV Multi-Level Voltage Source Converters By TALEB Tahar; KRUG Dietmar; BERNET Steffen; FAZEL Seyed Saeed	[View] [Download]
Abstract: This paper compares a Three-Level Neutral Point Clamped Voltage Source Converter (3L-NPC VSC), a Three-Level Flying Capacitor Voltage Source Converter (3L-FLC VSC), a Four-Level Flying Capacitor Voltage Source Converter (4L-FLC VSC) and Nine-Level-Series Connected H-Bridge Voltage Source Converter (9L-SCHB VSC) on the basis of state-of-the-art 6.5kV, 4.5kV and 1.7kV IGBTs for a 4.16kV medium voltage converter. The design of the power semiconductors, the installed switch power, converter losses, the semiconductor loss distribution, modulation strategies and the harmonic spectra are compared in detail.

	Low Power Converters for High Output Voltages By KELLER Christian; JAKOB Roland	[View] [Download]
Abstract: The paper presents circuit topologies for medium voltage converters and investigates their suitability for high voltage low power applications with up to 4 MVA. For an example of an inverter for 6 kV motor voltage the four level floating capacitor topology was chosen. Advantages of this topology are the balanced power dissipation of the power semiconductor devices and direct voltage clamping of each power device. Details of the motor inverter design are presented.