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Bahareh Anvari - IEEE Xplore Author Profile

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This paper presents a framework for the design and analysis of a light and low-cost axial flux permanent magnet motor which consists of dual permanent magnet rotors and a coreless Printed Circuit Board stator. Removal of the conventional laminated stator core significantly reduces core losses, decreases cogging and torque ripple and increases efficiency. The proposed design drastically eliminates ...Show More
This paper introduces direct online electric machines to achieve high torque at low speeds while maintaining a low number of poles. The proposed concept integrates line-start motor with a magnetic gear into a single housing with improved starting performance and rated operation torque density. Magnetic gears can scale the torque and speed of rotary systems, while avoiding problems associated with ...Show More
Wide bandgap (WBG) device-based power electronics converters are more efficient and lightweight than silicon-based converters. WBG devices are an enabling technology for many motor drive applications and new classes of compact and efficient motors. This paper reviews the potential applications and advances enabled by WBG devices in ac motor drives. Industrial motor drive products using WBG devices...Show More
In this work, optimal firing angles of Switched Reluctance Motors (SRMs) are explored by surrogate-based optimization in order to minimize the torque ripple. Surrogate-based optimization is facilitated via Neural Networks (NNs) which are regression tools capable of learning complex multi-variate functions. Flux and torque calculations of a nonlinear 16/20 SRM are evaluated with a NN, and consequen...Show More
This paper proposes a framework for the design and analysis of a coreless permanent magnet (PM) machine for a 100 kWh shaft-less high strength steel flywheel energy storage system. The PM motor/generator is designed to meet the required specifications in terms of torque–speed and power–speed characteristics given by the application. The design challenges of a motor/generator for this architecture ...Show More
Energy storage is crucial for both smart grids and renewable energy sources such as wind or solar, which are intermittent in nature. Compared to electrochemical batteries, flywheel energy storage systems (ESSs) offer many unique benefits such as low environmental impact, high power quality, and larger life cycles. This paper presents a novel utility-scale flywheel ESS that features a shaftless, hu...Show More
Interests in using rare-earth free motors such as switched reluctance motors (SRMs) for electric and hybrid electric vehicles continue to gain popularity, owing to their low cost and robustness. Optimal design of an SRM, to meet specific characteristics for an application, should involve simultaneous optimization of the motor geometry and control in order to achieve the highest performance with th...Show More
Interests in using rare-earth free motors such as switched reluctance motors (SRMs) for electric and hybrid electric vehicles (EV/HEVs) continue to gain popularity, owing to their low cost and robustness. Optimal design of a SRM, to meet specific characteristics for an application, should involve simultaneous optimization of the motor geometry and control in order to achieve the highest performanc...Show More
This paper proposes a framework for the design of a coreless permanent magnet (PM) machine for a 100 kWh shaft-less high strength steel flywheel energy storage system (SHFES). The PM motor/generator is designed to meet the required specs in terms of torque-speed and power-speed characteristics given by the application. The design challenges of a motor/generator for this architecture include: the p...Show More
Electric Submersible Pumps are a widespread industrial solution for artificial lift applications in oil industries. Linear motors are becoming more popular as they are applied for new applications in various fields. Integrated Drive-Motor technology shows many promising advantages. In this paper, a system which combines these three technologies for marginal oil wells application is discussed. This...Show More
Literature suggests that a number of poles over 6 is not recommended for Synchronous Reluctance Machines (SynRM) up to the kW-range. To investigate if this fact is also valid for multi-MW Synchronous Reluctance Generators (SynRG), this paper compares such a SynRG with 6, 8 and 12 poles. The effect of different pole numbers on average torque, loss, torque-ripple, d and q inductances is investigated...Show More
Interest in using magnet-less motor such as switched reluctance motors (SRMs) for electric and hybrid electric vehicles (EV/HEVs) continues to gain popularity, owing to their lower costs and robustness. This paper presents design procedures and comparisons between three different multiphase SRMs for a specific traction application using finite elements analysis (FEA). Four-phase, five-phase, and s...Show More
Interest in using magnet-less switched reluctance generators for wind turbines applications continues to gain popularity. Mainly due to unstable price of the magnet raw material that is one of the main challenges for engineers to forecast the final cost of the wind turbine. This paper presents design of a direct drive switched reluctance generator (DDSRG) for wind turbine applications using Finite...Show More