EPE Association: EPE 2016 - DS3k: Industry Specific Energy Conversion and Conditioning Technologies

EPE 2016 - DS3k: Industry Specific Energy Conversion and Conditioning Technologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2016 ECCE Europe - Conference > EPE 2016 - Topic 09: Industry-Specific Energy Conversion and Conditioning Technologies > EPE 2016 - DS3k: Industry Specific Energy Conversion and Conditioning Technologies

   [return to parent folder]

   A Starter/Generator Unit for Aerospace Applications-Concept to Prototype
By Emile BRINK [View]
[Download]

Abstract: This paper present the design of a permanent-magnet starter-generator unit for aerospace applications from concept to implementation. Attention is placed on the required failure-rates, system architecture, power density, prototype implementation and experimental test-setup. Measures taken to realise the failure-rates are the design of an electrical machine which can operate under unbalanced short-circuit conditions, a short-circuit detection circuit and a dedicated hardware-protection layer. An increase in power density is investigated through the implementation of an integrated magnetic component based on a novel stacked PCB approach, while a high inertia turbine simulator was realised using a back-to-back electrical machine setup.

   Active Damping based Stability Improvement Methods on Source Side for More Electric Aircraft
By XUAN ZHANG [View]
[Download]

Abstract: This paper proposed four stability improvement methods by source-side PWM rectifier for MoreElectric Aircrafts (MEAs). These stabilization methods are based on injecting compensation signalsinto the control loop of the source-side PWM rectifier which can omit remote sensor andcompensation signal of each load. Besides, they overcome the drawback that load-side activedamping methods do harm to load performance. Damping capability, sensitivity to system parametersand the impact of LC filters are discussed. Validity of the analysis is verified by simulations results.

   Capacitor Design Optimization and Power Balance Control for LLC Resonant Converter Based Power Electronic Traction Transformer
By Shien WANG [View]
[Download]

Abstract: Power electronic traction transformer (PETT) is an emerging technology for traction applications. LLCresonant converter is an attractive option for isolated DC/DC stage because of its high efficiency.However, there will be inevitable twice-line frequency ripple on the resonant current due to the singlephasepower fluctuation. On the other hand, parameter mismatch between modules can result in powerimbalance. Both phenomena reduce the system capacity and efficiency. In this paper, a small signalmodel of LLC resonant converter is derived, and then the converter transfer function and powercharacteristic can be obtained. By analyzing the magnitude diagram of the transfer function, upper limitof secondary DC bus capacitor can be observed. And from power characteristic, the difference betweenprimary side and secondary side voltage determines the power flow. Thus, a power balance strategybased on the single phase d-q vector control of cascaded rectifier is proposed. Power balance can beachieved by regulating primary side DC bus voltages to slightly different values.

   Catenary Free Operation of Light Rail Vehicles - Topology and Operational Concept
By Frank BECKER [View]
[Download]

Abstract: Difficult building conditions but also the impairment of the cityscape through overhead lines can lead to high cost and lack of acceptance from citizens and town planners. In these cases the use of a tram with an energy storage (ES) which enables for catenary free operation (CFO) could be the more cost-effective solution and could create the necessary acceptance. This article presents the operational concept of catenary free operation of a tram and the integration of a Lithium-Ion (Li-Ion) energy storage into the propulsion system of a BOMBARDIER* FLEXITY* 2 tram. The first application of this propulsion system was carried out for the newly built tram line of the Chinese metropolis of Nanjing. The trams are successfully in passenger operation since the youth Olympic Games in August 2014, running without catenaries on 90\% of the line.

   Design and Implementation of Multi-Frequency Magnetic Field Generator Producing Sinusoidal Waveform for Biological Researches
By Keiji WADA [View]
[Download]

Abstract: This paper presents design and implementation of a magnetic field generator for biological research. While conventional magnetic field generators only produce one frequency component, this paper discusses a multi-frequency range magnetic field generator with frequencies of 200 Hz and 20 kHz. In addition, actual systems with the inverter circuits for the purpose of biological evaluation are presented.

   Investigation of the behaviour of a High Step-up DC/DC converter used in a Waste Heat Recovery System for Marine Applications
By NIKOLAS ZARKADIS [View]
[Download]

Abstract: In this paper, an investigation of the behaviour of a high step-up DC/DC converter is conducted as an application in a Static Waste Heat Recovery System (SWHRS) for ships with DC bus. It is proven that a higher step-up ratio can be achieved with the proposed DC/DC converter compared with that of a classical step-up converter, even in a high power level. Also, analysis of the proposed Waste Heat Recovery System shows that the ship loads can be supplied by both Diesel Generators and this SWHRS, leading to a greener ship with lower fuel consumption and less gas emissions.

   Loss Reduction Design for Coils and Power Converter by Considering Reactive Power and AC Resistance in High Power Contactless Power Transmission
By Takuya SHIMOTSU [View]
[Download]

Abstract: In this paper, the relationship among reactive power, AC resistance and total loss are evaluated by experiment using mini model of contactless power transfer transformer. It is revealed that the reactive power minimization design is useful in terms of total loss reduction effect.

   Representative PWM Waveform Generator for Measurement of Partial Discharges in Power Electronic Systems
By Benjamin CELLA [View]
[Download]

Abstract: A partial discharges-free power source is a prerequisite for appropriate partial discharges (PD) evaluation in power electronics systems. Moreover, the voltage waveform is a significant parameter which can affect the discharges' nature. This paper describes the development of a PD-free voltage source delivering pulse width modulation voltage for realistic test purpose.

   Stability Assessment of a High Speed Permanent Magnet Machine Based Aircraft Electrical Power System
By Fei GAO [View]
[Download]

Abstract: Starting an aircraft engine with an electrical machine has been one of the major trends for future aircraft. This paper studies the stability of a permanent-magnet machine (PMM) based aircraft starter/generator (S/G) system. Using control-to-output transfer functions, the stability analysis of this S/G system is thoroughly studied. The impact of the key parameters including the control parameters is analysed. Simulation and experimental results support the analytical result.

   Using Opposition Method to Test Aerospace Power Electronics Converters
By Rodolphe DE MAGLIE [View]
[Download]

Abstract: This paper deals with the implementation of the opposition method for testing power electronicsconverter in aerospace applications. The methodology and test results are presented. The method issuccessfully applied on a 48kW inverter dedicated to future Electrical Environmental ConditioningSystem for aerospace application.

EPE 2016 - DS3k: Industry Specific Energy Conversion and Conditioning Technologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2016 ECCE Europe - Conference > EPE 2016 - Topic 09: Industry-Specific Energy Conversion and Conditioning Technologies > EPE 2016 - DS3k: Industry Specific Energy Conversion and Conditioning Technologies
	[return to parent folder]

	A Starter/Generator Unit for Aerospace Applications-Concept to Prototype By Emile BRINK	[View] [Download]
Abstract: This paper present the design of a permanent-magnet starter-generator unit for aerospace applications from concept to implementation. Attention is placed on the required failure-rates, system architecture, power density, prototype implementation and experimental test-setup. Measures taken to realise the failure-rates are the design of an electrical machine which can operate under unbalanced short-circuit conditions, a short-circuit detection circuit and a dedicated hardware-protection layer. An increase in power density is investigated through the implementation of an integrated magnetic component based on a novel stacked PCB approach, while a high inertia turbine simulator was realised using a back-to-back electrical machine setup.

	Active Damping based Stability Improvement Methods on Source Side for More Electric Aircraft By XUAN ZHANG	[View] [Download]
Abstract: This paper proposed four stability improvement methods by source-side PWM rectifier for MoreElectric Aircrafts (MEAs). These stabilization methods are based on injecting compensation signalsinto the control loop of the source-side PWM rectifier which can omit remote sensor andcompensation signal of each load. Besides, they overcome the drawback that load-side activedamping methods do harm to load performance. Damping capability, sensitivity to system parametersand the impact of LC filters are discussed. Validity of the analysis is verified by simulations results.

	Capacitor Design Optimization and Power Balance Control for LLC Resonant Converter Based Power Electronic Traction Transformer By Shien WANG	[View] [Download]
Abstract: Power electronic traction transformer (PETT) is an emerging technology for traction applications. LLCresonant converter is an attractive option for isolated DC/DC stage because of its high efficiency.However, there will be inevitable twice-line frequency ripple on the resonant current due to the singlephasepower fluctuation. On the other hand, parameter mismatch between modules can result in powerimbalance. Both phenomena reduce the system capacity and efficiency. In this paper, a small signalmodel of LLC resonant converter is derived, and then the converter transfer function and powercharacteristic can be obtained. By analyzing the magnitude diagram of the transfer function, upper limitof secondary DC bus capacitor can be observed. And from power characteristic, the difference betweenprimary side and secondary side voltage determines the power flow. Thus, a power balance strategybased on the single phase d-q vector control of cascaded rectifier is proposed. Power balance can beachieved by regulating primary side DC bus voltages to slightly different values.

	Catenary Free Operation of Light Rail Vehicles - Topology and Operational Concept By Frank BECKER	[View] [Download]
Abstract: Difficult building conditions but also the impairment of the cityscape through overhead lines can lead to high cost and lack of acceptance from citizens and town planners. In these cases the use of a tram with an energy storage (ES) which enables for catenary free operation (CFO) could be the more cost-effective solution and could create the necessary acceptance. This article presents the operational concept of catenary free operation of a tram and the integration of a Lithium-Ion (Li-Ion) energy storage into the propulsion system of a BOMBARDIER* FLEXITY* 2 tram. The first application of this propulsion system was carried out for the newly built tram line of the Chinese metropolis of Nanjing. The trams are successfully in passenger operation since the youth Olympic Games in August 2014, running without catenaries on 90\% of the line.

	Design and Implementation of Multi-Frequency Magnetic Field Generator Producing Sinusoidal Waveform for Biological Researches By Keiji WADA	[View] [Download]
Abstract: This paper presents design and implementation of a magnetic field generator for biological research. While conventional magnetic field generators only produce one frequency component, this paper discusses a multi-frequency range magnetic field generator with frequencies of 200 Hz and 20 kHz. In addition, actual systems with the inverter circuits for the purpose of biological evaluation are presented.

	Investigation of the behaviour of a High Step-up DC/DC converter used in a Waste Heat Recovery System for Marine Applications By NIKOLAS ZARKADIS	[View] [Download]
Abstract: In this paper, an investigation of the behaviour of a high step-up DC/DC converter is conducted as an application in a Static Waste Heat Recovery System (SWHRS) for ships with DC bus. It is proven that a higher step-up ratio can be achieved with the proposed DC/DC converter compared with that of a classical step-up converter, even in a high power level. Also, analysis of the proposed Waste Heat Recovery System shows that the ship loads can be supplied by both Diesel Generators and this SWHRS, leading to a greener ship with lower fuel consumption and less gas emissions.

	Loss Reduction Design for Coils and Power Converter by Considering Reactive Power and AC Resistance in High Power Contactless Power Transmission By Takuya SHIMOTSU	[View] [Download]
Abstract: In this paper, the relationship among reactive power, AC resistance and total loss are evaluated by experiment using mini model of contactless power transfer transformer. It is revealed that the reactive power minimization design is useful in terms of total loss reduction effect.

	Representative PWM Waveform Generator for Measurement of Partial Discharges in Power Electronic Systems By Benjamin CELLA	[View] [Download]
Abstract: A partial discharges-free power source is a prerequisite for appropriate partial discharges (PD) evaluation in power electronics systems. Moreover, the voltage waveform is a significant parameter which can affect the discharges' nature. This paper describes the development of a PD-free voltage source delivering pulse width modulation voltage for realistic test purpose.

	Stability Assessment of a High Speed Permanent Magnet Machine Based Aircraft Electrical Power System By Fei GAO	[View] [Download]
Abstract: Starting an aircraft engine with an electrical machine has been one of the major trends for future aircraft. This paper studies the stability of a permanent-magnet machine (PMM) based aircraft starter/generator (S/G) system. Using control-to-output transfer functions, the stability analysis of this S/G system is thoroughly studied. The impact of the key parameters including the control parameters is analysed. Simulation and experimental results support the analytical result.

	Using Opposition Method to Test Aerospace Power Electronics Converters By Rodolphe DE MAGLIE	[View] [Download]
Abstract: This paper deals with the implementation of the opposition method for testing power electronicsconverter in aerospace applications. The methodology and test results are presented. The method issuccessfully applied on a 48kW inverter dedicated to future Electrical Environmental ConditioningSystem for aerospace application.