NDLI: A low-cost semi-modular dual-stack PM BLDC motor for a PV based bore-well submersible pump

Content Provider	IEEE Xplore Digital Library
Author	Sashidhar, S. Fernandes, B.G.
Copyright Year	2014
Description	Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India (Sashidhar, S.; Fernandes, B.G.)
Abstract	Photovoltaic (PV) powered electric water pumps are becoming popular in remote rural locations due to the non-availability of grid connectivity. A typical PV based drive scheme consists of a PV array, DC-DC converter, inverter-fed induction motor and a water pump. Induction motors are rugged in construction and offer low maintenance but their efficiency is poor at low power levels. Therefore, permanent magnet brushless DC (BLDC) motors are preferred in these applications in view of their relatively high efficiency and robust structure. But, over the years there has been a steep hike in the price of rare-earth permanent magnets like NdFeB (Neodymium Iron Boron) and SmCo (Samarium Cobalt) which make the motor un-economical. Therefore, the design of BLDC motor with low-cost ferrite permanent magnets is gaining interest. In this paper, a novel low-cost three-phase “Semi-Modular Dual-Stack” (SMDS) spoke type brushless dc motor is proposed for a PV powered deep bore-well electric submersible pump (ESP). The proposed motor has good flux concentration without compromise on the ruggedness of the rotor with additional advantage of low cogging torque. Detailed simulation studies of the proposed motor are carried in 2D and 3D-FEM environment using MagNet software to validate the claims and the results are presented.
Sponsorship	IEEE
Starting Page	24
Ending Page	30
File Size	1908488
Page Count	7
File Format	PDF
ISBN	9781479943890
DOI	10.1109/ICELMACH.2014.6960154
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-02
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic flux leakage Brushless DC motors Air gaps Rotors brushless machines Permanent magnet motors electrical submersible pumps photo-voltaic cells
Content Type	Text
Resource Type	Article

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Comparison of a ferrite based single, three-phase spoke and surface permanent magnet BLDC motor for a PV submersible water pump

Comparison of parallel BLDC FSPM machines with strong flux-weakening capability

A parallel BLDC FSPM machines with wide fluxweakening capability

FE Analysis and Computer-Aided Design of a Sandwiched Axial-Flux Permanent Magnet Brushless DC Motor

Development of external rotor single-phase PM BLDC motor based drive for ceiling fan

Effect of Armature Reaction and Skewing on the Performance of Radial-flux Permanent Magnet Brushless DC Motor

Torque Ripple Minimization of Interior Permanent Magnet Brushless DC Motor Using Rotor Pole Shaping

Computer Aided Design and FE Analysis of a PM BLDG Hub Motor

Computer aided identifications for a good design of new PM-DC brushless motor with axial magnetization

A low-cost semi-modular dual-stack PM BLDC motor for a PV based bore-well submersible pump

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