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Volume 7
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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Previous articles were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
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Article

A Novel Rectification Method for a High Level ac Voltage Converting to a Low Level dc Voltage: Example of Scooters Idling Stop System

by
Pin-Yung Chen
1,2,*,
Rongshun Chen
2,
Yung-Chen Wang
1,2 and
Hsieh-Tai Su
1
1
Mechanical and Systems Research Laboratories, Industrial Technology Research Institute, 195, Sec 4, Chung Hsing Rd., Chutung, Hsinchu, Taiwan
2
Department of Power Mechanical Engineering of National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu, Taiwan
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2015, 7(3), 420-425; https://doi.org/10.3390/wevj7030420
Published: 25 September 2015
Versions Notes

Abstract

This paper proposed a novel rectification method for a high-level ac voltage convert to a low-level dc voltage, in which the Permanent Magnet Synchronous Motor (PMSM) Matlab/Simulink model in generation mode has been established in order to analyze the energy characteristics of PMSM operating in scooters at full drive speed. From the simulation results, the terminal voltage and line current in load-side have a wide convert rate when the internal resistance of battery is a great value. In design, the gate driver signals can be generated, referring to the virtual hall signals, to chop the different back Electromotive Force (back-EMF). Then, the ac voltages of back-EMF can be rectified to the dc voltage by Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) at the same time. Finally, the proposed method has been implemented in scooters idling stop system successfully, and a safe low level dc voltage always can be obtained to charge battery immediately (in general 12V) no matter what a variable speed in scooters.
Keywords: rectification; scooter; virtual hall signal; idling stop system rectification; scooter; virtual hall signal; idling stop system

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MDPI and ACS Style

Chen, P.-Y.; Chen, R.; Wang, Y.-C.; Su, H.-T. A Novel Rectification Method for a High Level ac Voltage Converting to a Low Level dc Voltage: Example of Scooters Idling Stop System. World Electr. Veh. J. 2015, 7, 420-425. https://doi.org/10.3390/wevj7030420

AMA Style

Chen P-Y, Chen R, Wang Y-C, Su H-T. A Novel Rectification Method for a High Level ac Voltage Converting to a Low Level dc Voltage: Example of Scooters Idling Stop System. World Electric Vehicle Journal. 2015; 7(3):420-425. https://doi.org/10.3390/wevj7030420

Chicago/Turabian Style

Chen, Pin-Yung, Rongshun Chen, Yung-Chen Wang, and Hsieh-Tai Su. 2015. "A Novel Rectification Method for a High Level ac Voltage Converting to a Low Level dc Voltage: Example of Scooters Idling Stop System" World Electric Vehicle Journal 7, no. 3: 420-425. https://doi.org/10.3390/wevj7030420

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