基于单片机控制的交流调速系统(2)

介绍了基于单片机调速系统的设计

Based on SCM and Frequency control AC variale speed system

design

ABSTRACT

Frequency conversion that one-chip computer control transfer speed systematic

design philosophy with transfer to difference frequency control. Achieve the goal of controlling rotational speed through changing the procedure . Because the motor is not big in power in the design, the rectifier can not adopt controlledly the circuit, the

condenser strains waves; Going against the becoming device adopts three phases of the electric transistor to go against the becoming device. The systematic ensemble

architecture is by the main return circuit mainly, drive the circuit, the photo electricity isolates the circuit,SA8282 large scale integrated circuit, protects the circuit, The

AT89C51Intel series one-chip computer, Intel8255 programmable interface chip, I/O interface chip, and tests the speed such composition as the generator ,etc.. Have the dependability that can make the whole system operate of measuring and protecting the circuit to have guarantee in the return circuit

KEY WORDS: The AT89C51 SCM；SA8282；Frequency；AC variale speed；three phase eletromotor of asynchronism

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