NASA NTRS · 19850000150
Commutating Permanent-Magnet Motors At Low Speed
Abstract
Circuit provides forced commutation during starting. Forced commutation circuit diverts current from inverter SCR's and turns SCR's off during commutation intervals. Silicon controlled rectifier in circuit unnecessary when switch S10 replaced by high-current, high-voltage transistor. At present, high-current, low-voltage device must suffice.
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Dolland, C.. 1985-08-01. Commutating Permanent-Magnet Motors At Low Speed. https://ntrs.nasa.gov/citations/19850000150
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