Project Description
Demands toward locomotives have been increased in the past decades which leads to global CO2 emissions. To eliminate the emissions, the most feasiblesolution at present is locomotives driven by battery-based electric motor. Electric train is an efficient, cheap, alternate green solution for light and heavy load(freight) transportations, and can be utilized for in-city transport as well as over long distances. Electric motor designed for electric train can be rotary orlinear. Rotary electric motor is conventionally used for trains (DC series traction motor is used in Pakistan) and Hybrid Electric Vehicles (HEVs). Geometrical structure and behavior of output mechanical energy for rotary motors results its best performance in case of HEVs, while Linear Motors (LM) arerecommended for translational motion as in case of Electric Trains. Several linear electric motors have been investigated for electric trains such as linear dcmotor, linear induction motor, and linear switched reluctance motor. Linear dc motor has inherent high maintenance cost due to stator faults and brushes.Linear Induction Motor shows reduced air-gap average flux linkage and thrust, additional stator faults due to stator bars, and strong nonlinearities causedby end effects. While, Linear Switched Reluctance Motors represent high force ripple and leads to vibration and acoustic noise.A new structure of Three Phase Hybrid Excited Linear Flux Switching Motor (HELFSM), consists of segmented stator and non-overlap windings is proposed.The combination should improve the mechanical strength of the motor suitable for high speed drive, reduce the copper consumption, minimizing the weightand copper loss as well as the cost. The main objective of this research is to develop a novel structure of electronically controlled HELFSM with high thrustforce and high-power densities for future light weight Advanced Electric Power Train. The operating principle of HELFSM will be investigated and the initial performances will be optimized. Finally, the optimum design of HELFSM will be fabricated and validated experimentally. It is expected that the proposedlight weight HELFSM with segmented stator and non-overlap windings will generate much higher thrust force and power densities to be applied for futureElectric Power Train.
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Project Funding
1
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Higher Education Commission Pakistan
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6.304
Million Rupee
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Members
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