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luis cândido tomaselli - Ivo Barbi

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Abstract of Thesis presented to UFSC as a partial fulfillment of the requirements for the<br />

degree of Doctor in Electrical Engineering.<br />

STUDY OF A VARIABLE SPEED ELECTRICAL DRIVE FOR<br />

PERMANENT SPLIT CAPACITOR INDUCTION SINGLE-<br />

PHASE MOTOR USED IN BLOWERS<br />

Luis Cândido Tomaselli<br />

December/2004<br />

Advisor: Prof. <strong>Ivo</strong> <strong>Barbi</strong>, Dr. Ing.<br />

Area of Concentration: Power Electronics and Electrical Drives<br />

Keywords: PSC motor, blower, Space vector modulation, two-phase<br />

Number of pages: 250<br />

Drives for asymmetrical two phase induction motor with permanent capacitor are studied<br />

in this thesis. These motors are used for driving fans. The study is performed using two<br />

techniques, the first one is the slip control and the second one is the synchronous frequency<br />

control. The concepts are reviewed and experimental results are shown. Drives for<br />

symmetrical two phase machines are also studied. A comparison is made among different<br />

types of space vector modulation (discontinuous and continuous). The operation of the<br />

three leg voltage inverter in the non linear region is also presented, when used to drive a<br />

symmetrical machine.<br />

xi

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