| 摘要 |
PROBLEM TO BE SOLVED: To simply reduce an influence of a current flowing to a coil of another phase so as to accurately obtain a positional angle from a voltage and a current of a coil of a certain phase in a switched reluctance motor. SOLUTION: When currents are supplied from a DC power source VDC to a U-phase coil 94u and a W-phase coil 94w, the currents are supplied from the side attached with black circles and drawn from its opposite side. Even when the currents are circulated by free wheeling diodes Du+, Du-, Dw+ and Dw-, directions of the currents are the same. However, both when the current is supplied from the power source VDC to a V-phase coil 94v and when the currents are circulated by free wheeling diodes Dv+ and Dv-, the current is supplied from the side not attached with the black circle, and drawn from the side attached with the black circle. That is, the current is supplied to the coil 94v reversely to those of the coil 94u and the coil 94w. |
