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Controlling multiple motors utilizing a single DSP controller

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3 Author(s)
Shireen, W. ; Houston Univ., TX, USA ; Arefeen, M.S. ; Figoli, D.

Traditionally the cost sensitive motor drive market has forced designers to avoid DSP controllers for their drive designs. However, several factors are rapidly changing this scenario. The prices of DSPs have dropped from hundreds of dollars to approximately three dollars since their introduction in the early 1980s. Moreover, DSPs can now integrate a variety of sophisticated peripherals. This integration of a DSP core with a set of useful peripherals significantly simplifies the design. At the same time, cost sensitive drives like HVAC appliances are starting to utilize variable speed drives to maximize efficiency and comfort for the user. Many of these applications have more than one motor; for example, a typical HVAC system usually utilizes two motors. Until now, these motors were mainly operated at a fixed speed or at a set number of multiple speeds to minimize cost. This paper shows the advantages of using DSP controllers for such applications. It is shown that these controllers provide a true single chip solution for these drives

Published in:

Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual  (Volume:2 )

Date of Conference:

14-18 Mar 1999