Results 271 to 280 of about 48,799 (310)

Modular Multiphase Drives for Variable-Pole Induction Machines in Electric Vehicles

2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020
Electric vehicles require high efficiency, compact and reliable high-power drivetrains. A variable-pole induction machine (IM) offers a viable magnet-free solution with distinct advantages, such as extended speed range and better utilization over all loading conditions compared to fixed-pole machines.
Elie Libbos, Ruomu Hao, Bonhyun Ku, Arijit Banerjee, Philip T. Krein   +4 more
openaire   +1 more source

Full detection of high-resistance connections in multiphase induction machines

2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED), 2013
High-resistance connections in electrical machines cause unbalances in the stator resistances, reduce the efficiency and increase the fire hazard. In this paper the problem of detection of high-resistance connections is investigated for multiphase induction machines with an odd number of phases.
ZARRI, LUCA, MENGONI, MICHELE, TANI, ANGELO, GRITLI, YASSER, SERRA, GIOVANNI, FILIPPETTI, FIORENZO, CASADEI, DOMENICO   +6 more
openaire   +2 more sources

Non-sinusoidal Supply Control Strategy Based on Rotor and Air-gap Flux Orientation for Multiphase Induction Machine

International Conference on Electrical Machines and Systems, 2019
novel non-sinusoidal power supply control strategy for multiphase induction machine (IM) is presented in this paper. Different with the traditional control strategies, the proposed method is based on both the rotor flux and air-gap flux orientation, for ...
Yan Wang, Jiaqiang Yang, Jian Gao
semanticscholar   +1 more source

Derating of Multiphase Induction Machines Due to Supply Imbalance

IEEE Transactions on Industry Applications, 2009
Open-loop variable-voltage variable-frequency control should offer an effective control strategy in many applications of multiphase machines, but increasing the number of phases can make the machine more sensitive to imbalance in the supply voltage, causing unequal current sharing between phases.
openaire   +2 more sources

Optimum flux distribution with harmonic injection for multiphase induction machine

5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010), 2010
This paper investigates a non-triplen multiphase induction machine with harmonic current injection fed with different sequences for an open loop optimized flux distribution which produce a quasi-square wave in the machine air-gap. The paper focuses on an eleven-phase machine which can be excited with harmonics up to the ninth. The technique is assessed
A.S. Abdel-Khalik, M.I. Masoud, B.W. Williams   +2 more
openaire   +1 more source

Variable sampling time model predictive control of multiphase induction machines

2018 IEEE 15th International Workshop on Advanced Motion Control (AMC), 2018
Model predictive control of multiphase induction machines has gained importance in recent years due to the advantages that it presents over conventional controllers. However, one of the principal problems of this control technique is the high harmonic content that appears in the voltage and currents of the system.
Cristina Martin, Manuel R. Arahal, Federico Barrero, Mario J. Duran, Ignacio Gonzalez-Prieto   +4 more
openaire   +1 more source

Analytical calculation of slot leakage inductance in multiphase electrical machines

2016 XXII International Conference on Electrical Machines (ICEM), 2016
Opting for a multiphase electrical machine may provide, in several industrial cases, significant benefits in terms of performance, resilience and reliability. The interest in multiphase topologies is recently increasing due to the trend for more electric transportation and high power offshore wind turbines.
P. Cordovil, I. E. Chabu
openaire   +1 more source

Variable speed multiphase induction machine using pole phase modulation principle

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
The pole phase modulation (PPM) principle is gaining attention in the squirrel induction machine design to be used for high speed applications in industries and for electric vehicle drives requiring increasing operating speed range. This principle signifies one of the advantages of using multiphase machines in variable speed-torque requirements.
Amrit Gautam, Joesph O. Ojo
openaire   +1 more source

Analysis of brush DC equivalent controlled multiphase cage rotor induction machines

4th International Conference on Power Engineering, Energy and Electrical Drives, 2013
In a brush dc equivalent (BDCE) controlled machine, quasi-square like constant air gap flux density and rotor induced voltage waveforms are utilized. Analytical expressions for calculating the developed power, flux density, stator and rotor copper losses for the BDCE controlled cage rotor multiphase induction machine are developed in this paper.
Nkosinathi Gule, Maarten J. Kamper
openaire   +1 more source

Efficient Predictive Control with Natural Fault-Tolerance for Multiphase Induction Machines

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019
High efficiency and reliability are two desirable features for wind energy conversion systems. In this regard, multiphase machines provide inherent fault-tolerance and better power density than conventional three-phase systems. From the point of view of the reliability, multiphase machines can provide a natural/passive fault-tolerance without a ...
A. Gonzalez-Prieto, I. Gonzalez-Prieto, M. J. Duran   +2 more
openaire   +1 more source