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For stable driving of pulse motors, it is important to devise how to diminish the commutating time of the exciting current, i.e. to release the accumlated magnetic energy in the exciting winding of a pulse motor during commutation.To solve the problem, the authors developed a kind of controlled current type inverter, which is thought as most suitable for driving circuits of pulse motors. The inverter consists of choppers, thyristors and a pair of commutation reactors having mutual coupling. Such inverter is especially called Coupled Reactor Commutating Inverter (CRCI), because during commutation, the stored energy is released to another exciting winding of the motor by the effect of the commutation reactors inserted between the branches of the inverter circuit.In addition, this inverter can be used in regenerative braking, which is a novel driving technique.Applying the above-mentioned inverter for a two-phase hyblid type pulse motor, superior characteristics concerning torque and efficiency were obtaind under high driving frequency.The present paper deals with analysis of the inverter circuit applied to the pulse motor, and with the experimental characteristics on sluing and regenerative braking of the motor.
公益社団法人計測自動制御学会の論文