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35 results on '"Paul, Sarbajit"'

9. Design Consideration of Rectangular Conductors and Slot Wedge for AC Winding Loss Reduction in High Speed Train Traction Motor

Author

Paul, Sarbajit, Lee, Jae-Gil, Han, Pil-Wan, Chang, Junghwan, and Luong, Xuan-Truong

Abstract

This study presents an in-depth analysis aimed at minimizing alternating current (AC) winding loss in high speed train (HST) traction motors using interior permanent magnet synchronous motors (IPMSMs). Focused on distributed traction (DT) systems, the research evaluates different rectangular conductor configurations and slot wedge designs to enhance high voltage winding efficiency. Finite element analysis (FEA), integrated with motor drive circuit simulations, is employed to assess AC winding losses across various configurations, identifying an optimal design that maximizes overall efficiency. The chosen configuration demonstrates reduction in eddy current losses induced by leakage flux, skin depth, and proximity effects. Validation of this configuration is achieved through prototyping and dynamometer testing, confirming FEA predictions. The findings not only contribute to the theoretical understanding of AC winding loss in traction motors but also provide practical guidelines for designing more efficient traction motors by minimizing the AC winding losses, crucial for advancing high speed train systems.

Published
2024
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35. Technical Analysis on Selected Stocks of Indian Banking Sector.

Author

Paul, Sarbajit and Mitra, Gautam

Subjects
STOCK price forecasting, TECHNICAL analysis (Investment analysis), BANKING industry, STOCK price indexes, MARKET capitalization, BUY-and-hold investing
Abstract

Technical Analysis (TA) is a mechanical trading technique for identifying and forecasting the stock price depending upon the historical data. It does not indicate the exact future price of stock but forecast the trend and momentum of a stock price. We have taken Axis Bank, HDFC Bank, ICICI Bank and State Bank of India for conducting our study. These four banks constituted 79% shares of Bank Nifty. These sample companies are selected on the basis of their market capitalization in banking sector and largest customer dealing network. Present paper actually is a comparative study of 'buy and hold' strategy with strategy suggested by TA. We have applied Moving Average (MA) and its improvisations as TA trading tool for conducting the study. Data have been collected from secondary sources for the period of four months starting from 2nd September, 2013 to 31th December, 2013. [ABSTRACT FROM AUTHOR]

Published
2015

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