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Papers by David Dorrell
2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014
2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014
IET Renewable Power Generation, 2014
ABSTRACT
IEEE Transactions on Magnetics, 2014
IEEE Transactions on Magnetics, 2014
ABSTRACT This paper presents an analytical method that integrates the equivalent circuit (EC) and... more ABSTRACT This paper presents an analytical method that integrates the equivalent circuit (EC) and magnetic circuit (MC) in order to analyze and design a brushless doubly fed reluctance generator (BDFRG). The proposed method is capable of evaluating the BDFRG performance at the design stage because the terminal voltage can be predicted through the MC and the torque can be calculated from the EC. The MC is used to calculate the air gap flux density so that the flux linkage can be further obtained for the calculation of the machine performance using the EC and a set of particular operating conditions. The integration of the EC and MC provides a rapid analysis for a direct connection between the physical dimensions and the machine performances, including torque, mechanical power, electric power, and efficiency. The proposed analytical method is applied to two BDFRG designs. One is a manufactured prototype. Finite element analysis and experiments are used to verify the analytical results.
2011 IEEE International Electric Machines & Drives Conference (IEMDC), 2011
... literature: the Brushless Doubly Fed Induction Machine [2]-[4] and the Brushless Doubly Fed R... more ... literature: the Brushless Doubly Fed Induction Machine [2]-[4] and the Brushless Doubly Fed Reluctance Machine ... with a small degree of skew offset between them Iron losses are discussed ... Secondly, while the axially-laminated rotor in [7] produces eddy current loss, it is very ...
2008 IEEE International Conference on Sustainable Energy Technologies, 2008
... j.yang@elec.gla.ac.uk). DG Dorrell is with the Mechatronics and Intelligent Systems Group, En... more ... j.yang@elec.gla.ac.uk). DG Dorrell is with the Mechatronics and Intelligent Systems Group, Engineering, University of Technology, Sydney, NSW, Australia (e-mail:david.dorrell@uts.edu.au). JE Fletcher is with the Department ...
IEEE Transactions on Magnetics, 2015
ABSTRACT
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
ABSTRACT
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012
IEEE Transactions on Magnetics, 2014
IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011
ABSTRACT
IEEE Transactions on Industry Applications, 2015
ABSTRACT This paper presents a model-predictive direct power control (MPDPC) strategy for a grid-... more ABSTRACT This paper presents a model-predictive direct power control (MPDPC) strategy for a grid-connected inverter used in a PV system. Thus is aimed at use in distributed generation. The controller uses a system model to predict the system behavior at each sampling instant. The voltage vector generating least power ripples will then be selected according to a cost function and applied during the next sampling period, thus flexible power regulation can be achieved. In addition, the influences of one-step delay in digital implementation is investigated and compensated using a model based prediction scheme. Furthermore, a switching frequency reduction algorithm is developed by adding a nonlinear constraint to the cost function, which is a significant advantage in higher-power applications. The effectiveness of the proposed MPC strategy was verified numerically by using MATLAB/Simulink, and validated experimentally using a laboratory prototype.
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
ABSTRACT
2011 IEEE Energy Conversion Congress and Exposition, 2011
2009 35th Annual Conference of IEEE Industrial Electronics, 2009
Page 1. Analysis of Axial Voltages and Inter-bar Currents in Cast Copper Cage Rotors during DC Cu... more Page 1. Analysis of Axial Voltages and Inter-bar Currents in Cast Copper Cage Rotors during DC Current Injection as an Aid to Identify Casting Faults David G. Dorrell1, Lucia Frosini2, Marcello Bottani2, Giacomo Galbiati2 Min ...
2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014
2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014
IET Renewable Power Generation, 2014
ABSTRACT
IEEE Transactions on Magnetics, 2014
IEEE Transactions on Magnetics, 2014
ABSTRACT This paper presents an analytical method that integrates the equivalent circuit (EC) and... more ABSTRACT This paper presents an analytical method that integrates the equivalent circuit (EC) and magnetic circuit (MC) in order to analyze and design a brushless doubly fed reluctance generator (BDFRG). The proposed method is capable of evaluating the BDFRG performance at the design stage because the terminal voltage can be predicted through the MC and the torque can be calculated from the EC. The MC is used to calculate the air gap flux density so that the flux linkage can be further obtained for the calculation of the machine performance using the EC and a set of particular operating conditions. The integration of the EC and MC provides a rapid analysis for a direct connection between the physical dimensions and the machine performances, including torque, mechanical power, electric power, and efficiency. The proposed analytical method is applied to two BDFRG designs. One is a manufactured prototype. Finite element analysis and experiments are used to verify the analytical results.
2011 IEEE International Electric Machines & Drives Conference (IEMDC), 2011
... literature: the Brushless Doubly Fed Induction Machine [2]-[4] and the Brushless Doubly Fed R... more ... literature: the Brushless Doubly Fed Induction Machine [2]-[4] and the Brushless Doubly Fed Reluctance Machine ... with a small degree of skew offset between them Iron losses are discussed ... Secondly, while the axially-laminated rotor in [7] produces eddy current loss, it is very ...
2008 IEEE International Conference on Sustainable Energy Technologies, 2008
... j.yang@elec.gla.ac.uk). DG Dorrell is with the Mechatronics and Intelligent Systems Group, En... more ... j.yang@elec.gla.ac.uk). DG Dorrell is with the Mechatronics and Intelligent Systems Group, Engineering, University of Technology, Sydney, NSW, Australia (e-mail:david.dorrell@uts.edu.au). JE Fletcher is with the Department ...
IEEE Transactions on Magnetics, 2015
ABSTRACT
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
ABSTRACT
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012
IEEE Transactions on Magnetics, 2014
IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011
ABSTRACT
IEEE Transactions on Industry Applications, 2015
ABSTRACT This paper presents a model-predictive direct power control (MPDPC) strategy for a grid-... more ABSTRACT This paper presents a model-predictive direct power control (MPDPC) strategy for a grid-connected inverter used in a PV system. Thus is aimed at use in distributed generation. The controller uses a system model to predict the system behavior at each sampling instant. The voltage vector generating least power ripples will then be selected according to a cost function and applied during the next sampling period, thus flexible power regulation can be achieved. In addition, the influences of one-step delay in digital implementation is investigated and compensated using a model based prediction scheme. Furthermore, a switching frequency reduction algorithm is developed by adding a nonlinear constraint to the cost function, which is a significant advantage in higher-power applications. The effectiveness of the proposed MPC strategy was verified numerically by using MATLAB/Simulink, and validated experimentally using a laboratory prototype.
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
ABSTRACT
2011 IEEE Energy Conversion Congress and Exposition, 2011
2009 35th Annual Conference of IEEE Industrial Electronics, 2009
Page 1. Analysis of Axial Voltages and Inter-bar Currents in Cast Copper Cage Rotors during DC Cu... more Page 1. Analysis of Axial Voltages and Inter-bar Currents in Cast Copper Cage Rotors during DC Current Injection as an Aid to Identify Casting Faults David G. Dorrell1, Lucia Frosini2, Marcello Bottani2, Giacomo Galbiati2 Min ...