TITLE

DEVELOPMENT OF A COMPACT THREE-PHASE INDUCTION MOTOR DRIVE SYSTEM WITH DISCRETE COMPONENTS

AUTHOR(S)
Lee, Shiyoung
PUB. DATE
March 2011
SOURCE
International Journal of Engineering Research & Innovation;Spring/Summer2011, Vol. 3 Issue 1, p42
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Growth in the high-volume market in variable-speed drives (VSDs) is expected due to emerging applications in both home appliances and process industries. VSDs greatly improve efficiency in those applications. Almost all of these applications do not require precise positioning or speed control and, hence, are of low-performance types. The invertercontrolled induction motor drive (IMD) is a strong competitor for such applications due to the low-cost of the motor and its inherent features such as simplicity of control requiring no sensors in these low-performance applications. It is brushless, as it has no slip rings, thus making it truly almost maintenance-free and robust. This study addresses issues of design and development of such a low-cost inverter and its controller in order to obtain a one-horsepower variable-speed IMD. In addition, an implementation of VSD with analog and discrete components is thoroughly discussed. The various issues addressed in detail are: specifications, appropriate control strategy and drive configuration, design of control circuits, and their switching and conduction losses and tuning. Results from a fully-tested one-horsepower experimental inverter-controlled induction motor drive system are presented to correlate the key design aspects and design specifications. The proposed VSD for the three-phase induction motor is implemented mostly with analog and discrete components; it will be very useful to students in electric motor drive courses to get an insight into a three-phase inverter and hands-on experiences in building and testing such a system.
ACCESSION #
82832781

 

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