An advanced control of electrical drive wilh sinusoidal brushless permanent magnet motor is proposed. Motor parameters are often not exactly known. An adaptive model following control loop (AMFC) is set forth in order to rebuild the back e.m.f. coefficient and to cancel the non-linear term due to the back e.m.f. by means of a feed forward compensation. This soiution allows to obtain a straight-forward application of a Variable Structure controller. The on-line identification of the back e.m. f. coefficient and the application of an optimal phase advance in the voltage improves the efficiency of the brushless motor.
Adaptive VS control of brushless motors
BALESTRINO, ALDO;LANDI, ALBERTO
1992-01-01
Abstract
An advanced control of electrical drive wilh sinusoidal brushless permanent magnet motor is proposed. Motor parameters are often not exactly known. An adaptive model following control loop (AMFC) is set forth in order to rebuild the back e.m.f. coefficient and to cancel the non-linear term due to the back e.m.f. by means of a feed forward compensation. This soiution allows to obtain a straight-forward application of a Variable Structure controller. The on-line identification of the back e.m. f. coefficient and the application of an optimal phase advance in the voltage improves the efficiency of the brushless motor.File in questo prodotto:
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