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Aida Mollaeian Aiswarya Balamurali Lakshmi Varaha Iyer

Impact of Frequent Start-Stop Duty Line-Start Permanent Magnet & Induction Motors on Power System Stability. Aida Mollaeian Aiswarya Balamurali Lakshmi Varaha Iyer. Can use the same Stator. Why Line-start permanent magnet motor ?. Rotor Bars. Permanent Magnet.

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Aida Mollaeian Aiswarya Balamurali Lakshmi Varaha Iyer

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  1. Impact of Frequent Start-Stop Duty Line-Start Permanent Magnet & Induction Motors on Power System Stability Aida Mollaeian AiswaryaBalamurali Lakshmi Varaha Iyer

  2. Can use the same Stator Why Line-start permanent magnet motor ? Rotor Bars Permanent Magnet Line Start Permanent Magnet Synchronous Motor Induction Motor • Permanent magnets with a shorted cage in the rotor. • Near-zero rotor losses and therefore higher efficiency. • Induction machines convert over 60% of the electrical energy generated in North America. • Losses in Induction motors total approximately 8.3x1010 kWh per year. • With average losses of 30% less than those of the induction motors, LSPMSMs could save 2.8x1010 kWh per year, equivalent to 20 million barrels of oil or $2 billion per year of fuel savings.

  3. Modeling of 3 hp Permanent magnet motor q-axis circuit d-axis circuit Laboratory machine under consideration

  4. Numerical Investigation of 3 hp LSPM

  5. Numerical Investigation of 3 hp LSPM

  6. Modeling of 3 hp Induction motor q-axis circuit d-axis circuit ABB machine under consideration

  7. Conventional issues • Higher Rr will increase starting torque, decrease efficiency , lesser in-rush current during starting • Lower Rr will increase efficiency, decrease starting torque, increase inrush current Design of a novel machine with improved starting performance Design Objective • At line frequency keep Rr Higher • Near synchronous speed decrease Rr to the lowest value possible Machine Data of the Designed Machine

  8. Improved starting performance of LSPMSM

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