EPE Association: EPE 2011 - LS8g: Topic 03: Power System Integration

EPE 2011 - LS8g: Topic 03: Power System Integration
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 03: Power System Integration > EPE 2011 - LS8g: Topic 03: Power System Integration

   [return to parent folder]

   EMC Behavior of PWM Inverter structure based on Coupled Interleaved Cells using Intercell Transformers
By Cyrille GAUTIER, Fabien ADAM, Eric LABOURE, Bertrand REVOL [View]
[Download]

Abstract: In this paper, the innovative structure of a PWM Multicell Interleaved Converter using Intercell Transformers is presented, and an accurate EMC oriented model is proposed. In such topologies, regarding spectral contents of common-mode voltage, the fundamental frequency and the harmonics are shifted by a factor q with respect to the switching frequency, where q is the number of interleaved cells. The EMI and especially the common mode behavior of this family of power converters are therefore discussed. A prototype has been designed, allowing comparison between measurement and simulations. Thus, the modeling approach is validated, and the positive effects on common-mode conducted interferences are confirmed.

   EMC Modelling of Drives for Aircraft Applications: Modelling Process and Optimisation of EMI Filters
By Baïdy TOURE, Jean-Luc SCHANEN, Laurent GERBAUD, Thierry MEYNARD, Nicolas CARRAO, Jean pierre CARAYON [View]
[Download]

Abstract: The paper proposes an approach for easy and fast modelling and optimization of power electronics structures. It focuses on the EMC filter design. To achieve this task for electrical drives, a full EMC modelling of the application is defined by combining time simulation (or measurements), FFT and system modelling in the frequency domain. A modular description in a user friendly environment allows describing the model and accounting for all technological parameters of the system: control strategy, inverter model (semiconductors, layout, …), filter, cables and AC machines. The automatic generation of the model gives also automatically the model gradients. This process is very generic, fast and systematic, and the generated models can be used with any optimisation algorithm, using gradients or not. Therefore, the EMC filter can be optimized to reach the smallest volume. This can also help in choosing its topology, according to the technological choices of the aircraft power electronics specifications. This methodology can also be used to investigate the impact of some technological choices of the drive (control strategy or cable characteristics for instance) on the filter volume

   New Type LCCT-Z-Source Inverters
By Marek ADAMOWICZ, Jaroslaw GUZINSKI, Haitham ABU-RUB, Fang Zheng PENG, Ryszard STRZELECKI [View]
[Download]

Abstract: Z-source inverters are suited for applications which require a large range of gain, such as in renewable energy. Recently proposed Trans-Z-source inverters (TZSIs) and T-source inverters (TSIs) characterize improved voltage gain thanks to the application of coupled inductors with turns ratio higher than one. The present paper extends the concept of Trans-Z-source (T-source) inverters. Two novel impedance networks: the LCCT (inductor-capacitor-capacitor-transformer) Z-source impedance network and the LCCT-qZ-source impedance network are presented. The former contains two built-in DC-current-blocking capacitors connected in series with transformer windings and therefore preventing the transformer core from saturation while the latter contains one built-in DC-current-blocking capacitor and combines the features of qZ-source and T-source impedance networks. The novel topologies of LCCT-impedance-source inverters: LCCT-Z-source inverter (LCCT-ZSI) and LCCT-quasi-Z-source inverter (LCCT-qZSI) proposed in the paper characterize available continuous input current which is the advantage compared to TZSIs and TSIs. Simulations and experimental results are provided to verify the analysis of two proposed topologies.

EPE 2011 - LS8g: Topic 03: Power System Integration
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 03: Power System Integration > EPE 2011 - LS8g: Topic 03: Power System Integration
	[return to parent folder]

	EMC Behavior of PWM Inverter structure based on Coupled Interleaved Cells using Intercell Transformers By Cyrille GAUTIER, Fabien ADAM, Eric LABOURE, Bertrand REVOL	[View] [Download]
Abstract: In this paper, the innovative structure of a PWM Multicell Interleaved Converter using Intercell Transformers is presented, and an accurate EMC oriented model is proposed. In such topologies, regarding spectral contents of common-mode voltage, the fundamental frequency and the harmonics are shifted by a factor q with respect to the switching frequency, where q is the number of interleaved cells. The EMI and especially the common mode behavior of this family of power converters are therefore discussed. A prototype has been designed, allowing comparison between measurement and simulations. Thus, the modeling approach is validated, and the positive effects on common-mode conducted interferences are confirmed.

	EMC Modelling of Drives for Aircraft Applications: Modelling Process and Optimisation of EMI Filters By Baïdy TOURE, Jean-Luc SCHANEN, Laurent GERBAUD, Thierry MEYNARD, Nicolas CARRAO, Jean pierre CARAYON	[View] [Download]
Abstract: The paper proposes an approach for easy and fast modelling and optimization of power electronics structures. It focuses on the EMC filter design. To achieve this task for electrical drives, a full EMC modelling of the application is defined by combining time simulation (or measurements), FFT and system modelling in the frequency domain. A modular description in a user friendly environment allows describing the model and accounting for all technological parameters of the system: control strategy, inverter model (semiconductors, layout, …), filter, cables and AC machines. The automatic generation of the model gives also automatically the model gradients. This process is very generic, fast and systematic, and the generated models can be used with any optimisation algorithm, using gradients or not. Therefore, the EMC filter can be optimized to reach the smallest volume. This can also help in choosing its topology, according to the technological choices of the aircraft power electronics specifications. This methodology can also be used to investigate the impact of some technological choices of the drive (control strategy or cable characteristics for instance) on the filter volume

	New Type LCCT-Z-Source Inverters By Marek ADAMOWICZ, Jaroslaw GUZINSKI, Haitham ABU-RUB, Fang Zheng PENG, Ryszard STRZELECKI	[View] [Download]
Abstract: Z-source inverters are suited for applications which require a large range of gain, such as in renewable energy. Recently proposed Trans-Z-source inverters (TZSIs) and T-source inverters (TSIs) characterize improved voltage gain thanks to the application of coupled inductors with turns ratio higher than one. The present paper extends the concept of Trans-Z-source (T-source) inverters. Two novel impedance networks: the LCCT (inductor-capacitor-capacitor-transformer) Z-source impedance network and the LCCT-qZ-source impedance network are presented. The former contains two built-in DC-current-blocking capacitors connected in series with transformer windings and therefore preventing the transformer core from saturation while the latter contains one built-in DC-current-blocking capacitor and combines the features of qZ-source and T-source impedance networks. The novel topologies of LCCT-impedance-source inverters: LCCT-Z-source inverter (LCCT-ZSI) and LCCT-quasi-Z-source inverter (LCCT-qZSI) proposed in the paper characterize available continuous input current which is the advantage compared to TZSIs and TSIs. Simulations and experimental results are provided to verify the analysis of two proposed topologies.