EPE Association: EPE 2009 - Subtopic 06-2 - LS: 'Modulation Strategies and Specific Control Methods for Static Converter (II)'

EPE 2009 - Subtopic 06-2 - LS: 'Modulation Strategies and Specific Control Methods for Static Converter (II)'
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2009 - Conference > EPE 2009 - Topic 06: 'Modulation Strategies and Specific Control Methods for Static Converter' > EPE 2009 - Subtopic 06-2 - LS: 'Modulation Strategies and Specific Control Methods for Static Converter (II)'

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   dq-control of High-Power Current Source Rectifiers utilizing Selective Harmonic Elimination
By Matteo TOMASINI, Ralph FELDMAN, Patrick WHEELER, Jon CLARE, Christian KLUMPNER, Ushe MUPAMBIREYI [View]
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Abstract: Selective Harmonic Elimination (SHE) is usually the preferred modulation technique for high power converters. When such modulation is used with Current Source Rectifiers (CSR), control of the dc-link current and of the input Displacement Power Factor is typically achieved by adjusting the amplitude and phase of the CSR modulation index. In this paper control of an SHE modulated CSR is achieved by adjusting the d and q components of the modulation index in a frame synchronous with the input filter capacitor voltage. The dc-link current is regulated by closed loop control and regulation of the supply current reactive component is achieved with feedforward control. The proposed control scheme yields several advantages over traditional control strategies, such as inherently bidirectional power flow capability, smooth transition between motoring and regenerative braking, reduced cross-coupling between the two control schemes and the possibility of regulating the reactive component of the supply current. Results from a 160 kVA experimental rig are included in the paper.

   Comparison of 30KW DC/DC Converter topologies interfaces for fuel cell in hybrid electric vehicle
By Monzer AL SAKKA, JOERI VAN MIERLO, HAMID GUALOUS, philippe LATAIRE [View]
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Abstract: This paper deals with a hybrid electric vehicle power supply system composed of a fuel cell as primary source and a supercapacitors module as an intermediate energy storage system. Due to low supercapacitors and Fuel Cell voltages and due to voltage level regulation, converters are necessary to interface the fuel cell and the supercapacitors module to the power-train of the electric vehicle. Three DC/DC converter topologies are considered in this paper: Conventional step-up DC/DC converter, Interleaved multi-channel step-up DC/DC converter and Full-Bridge step-up DC/DC converter. Simulations of three converters based on each topology are carried-out with 30 KW as maximum power. The aim of this work is to have a comparative study which takes into account the weight, volume, current and voltage ripples, electromagnetic interference (EMI) and the efficiency of each converter in order to select the most suitable topology for fuel cell electric vehicle application. It is shown that the interleaving technique has the advantage of lightweight and compact size, high efficiency, small voltage and current ripples which is very beneficial for fuel cells lifetime.

   An FPGA Controlled DC/DC Step-Up Converter for Automotive Applications
By Marcello CHIABERGE, Mirko DE GIUSEPPE, Gianluca BOTTO [View]
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Abstract: In automotive applications piezoelectric actuators (used as injectors) typically require more than 150V in order to be driven in a smaller time with respect to magnetic actuators, allowing for example more precise injections in the same motor cycle. This is a big concern in automotive environment, where the 12V battery voltage is still the main power source available. In this paper an efficient high-step up DC/DC converter is presented for interfacing the standard 12V battery with the high voltage DCBUS used for piezoelectric actuators system. In the proposed converter, two coupled inductor boost converters are interleaved and controlled by an FPGA. Design and analysis of the proposed converter are presented. Finally experimental results are provided for verification of the proposed converter.

EPE 2009 - Subtopic 06-2 - LS: 'Modulation Strategies and Specific Control Methods for Static Converter (II)'
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2009 - Conference > EPE 2009 - Topic 06: 'Modulation Strategies and Specific Control Methods for Static Converter' > EPE 2009 - Subtopic 06-2 - LS: 'Modulation Strategies and Specific Control Methods for Static Converter (II)'
	[return to parent folder]

	dq-control of High-Power Current Source Rectifiers utilizing Selective Harmonic Elimination By Matteo TOMASINI, Ralph FELDMAN, Patrick WHEELER, Jon CLARE, Christian KLUMPNER, Ushe MUPAMBIREYI	[View] [Download]
Abstract: Selective Harmonic Elimination (SHE) is usually the preferred modulation technique for high power converters. When such modulation is used with Current Source Rectifiers (CSR), control of the dc-link current and of the input Displacement Power Factor is typically achieved by adjusting the amplitude and phase of the CSR modulation index. In this paper control of an SHE modulated CSR is achieved by adjusting the d and q components of the modulation index in a frame synchronous with the input filter capacitor voltage. The dc-link current is regulated by closed loop control and regulation of the supply current reactive component is achieved with feedforward control. The proposed control scheme yields several advantages over traditional control strategies, such as inherently bidirectional power flow capability, smooth transition between motoring and regenerative braking, reduced cross-coupling between the two control schemes and the possibility of regulating the reactive component of the supply current. Results from a 160 kVA experimental rig are included in the paper.

	Comparison of 30KW DC/DC Converter topologies interfaces for fuel cell in hybrid electric vehicle By Monzer AL SAKKA, JOERI VAN MIERLO, HAMID GUALOUS, philippe LATAIRE	[View] [Download]
Abstract: This paper deals with a hybrid electric vehicle power supply system composed of a fuel cell as primary source and a supercapacitors module as an intermediate energy storage system. Due to low supercapacitors and Fuel Cell voltages and due to voltage level regulation, converters are necessary to interface the fuel cell and the supercapacitors module to the power-train of the electric vehicle. Three DC/DC converter topologies are considered in this paper: Conventional step-up DC/DC converter, Interleaved multi-channel step-up DC/DC converter and Full-Bridge step-up DC/DC converter. Simulations of three converters based on each topology are carried-out with 30 KW as maximum power. The aim of this work is to have a comparative study which takes into account the weight, volume, current and voltage ripples, electromagnetic interference (EMI) and the efficiency of each converter in order to select the most suitable topology for fuel cell electric vehicle application. It is shown that the interleaving technique has the advantage of lightweight and compact size, high efficiency, small voltage and current ripples which is very beneficial for fuel cells lifetime.

	An FPGA Controlled DC/DC Step-Up Converter for Automotive Applications By Marcello CHIABERGE, Mirko DE GIUSEPPE, Gianluca BOTTO	[View] [Download]
Abstract: In automotive applications piezoelectric actuators (used as injectors) typically require more than 150V in order to be driven in a smaller time with respect to magnetic actuators, allowing for example more precise injections in the same motor cycle. This is a big concern in automotive environment, where the 12V battery voltage is still the main power source available. In this paper an efficient high-step up DC/DC converter is presented for interfacing the standard 12V battery with the high voltage DCBUS used for piezoelectric actuators system. In the proposed converter, two coupled inductor boost converters are interleaved and controlled by an FPGA. Design and analysis of the proposed converter are presented. Finally experimental results are provided for verification of the proposed converter.