초록 ▼

A speed regulator and control system for controlling a motor from a polyphase AC source includes a data processor and a regulator and rectifier control interfacing the data processor with a controllable rectifier driving the motor is disclosed. The regulator and rectifier control, under control of t

A speed regulator and control system for controlling a motor from a polyphase AC source includes a data processor and a regulator and rectifier control interfacing the data processor with a controllable rectifier driving the motor is disclosed. The regulator and rectifier control, under control of the data processor, selectively transfers system parameters to the data processor, receives a calculated value proportional to firing angle from the data processor and supplies firing pulses to the rectifier to selectively connect each phase of the AC source to the motor as calculated by the data processor.

대표청구항 ▼

A method of controlling a DC motor in a system of the type including a data processor programmed to calculate a firing angle to develop a firing pulse to fire a controllable rectifier connected between an AC source and the DC motor to regulate the speed thereof, comprising the steps of: (a) providin

A method of controlling a DC motor in a system of the type including a data processor programmed to calculate a firing angle to develop a firing pulse to fire a controllable rectifier connected between an AC source and the DC motor to regulate the speed thereof, comprising the steps of: (a) providing, in the processor, stored parameters proportional to desired motor speed and firing angles; (b) generating an interrupt signal to the processor; (c) directing the processor, in response to said interrupt signal, to, (1) read a value proportional to acutal motor speed, (2) read a value proportional to motor current, (3) calculate a value proportional to firing angle as specified by the combined differences between the desired motor speed and said actual motor speed and a value proportional to a previously read motor current and the last read motor current and previously calculated differences of said combined differences, (4) select a one of said stored firing angles based on said calculated value, (d) generating a firing pulse to fire a rectifier at a time specified by the value of said selected firing angle; and (e) repeating steps c and d utilizing said firing pulse as said interrupt signal.