ANALOGUE ROTOR POSITION CONTROLLER FOR SWICHED RELUCTANCE MOTOR

摘要

This invention relates to a novel position using analogue electronic devices for application in a switched reluctance motor to eliminate the shaft - mounted position encoder comprising a SR motor (1) connected to a power converter (2) characterized in that said novel position sensor comprises sub-block I (15) having a summer (3) connected to said power converter for input of voltage (V) and phase current (iph), a resetting sub-block It (16) having an integrator (5), a sub-block III (17) having analog function generator (7) connected to said integrator, said function generator is connected to the negative terminal of a summing amplifier (8) for an input of current (4) and the positive terminal of said summing amplifier is connected to said power converter for an input of phase current (iph )a sub-block IV (18) having an analog divider (9) for an input current (ig) from said summing amplifier and an input of flux - linkage (?) from said integrator, said analog divider producing an output of unsaturated inductance (Lu) as an input to a low pass filter (6) and a comparator (10) of sub-block V (19) for a clock input for a ring counter (11) and buffer (12) of the sub-block VI (20), the output of which is connected to said power converter through an opto coupler (13) and a base drive (14).