Power generator drive control system

Abstract

The invention discloses a power generator drive control system, which comprises a single chip microcomputer, a keyboard module, a serial communication interface, a sensor module, a chopper comparison circuit, a drive circuit and a power amplifier circuit, wherein the single chip microcomputer is connected with the keyboard module, an LED state display module, the serial communication interface, the sensor module, a protection circuit, the drive circuit, the chopper comparison circuit and a D / A converter respectively; the drive circuit is also connected with a generator through the power amplifier circuit; the generator is also connected with the other end of the protection circuit and an amplifier module respectively; and the other end of the amplifier module is also connected with the chopper comparison circuit through a filter module and an isolation module in sequence. A light-emitting diode LED in an optocoupler disclosed by the invention can emit light only when close to a zero crossover, and obtains energy from previously charged capacitor C1, so that an average current can be reduced to 1 / 10 to 1%; the design also provides relatively quick, certain and steep conversion; and furthermore, the expectable ageing problem of the light-emitting diode in the optocoupler is also relieved.

Description

technical field [0001] The invention relates to a driving control system, in particular to a driving control system of an electric generator. Background technique [0002] The generator is an electromagnetic mechanical device that converts discrete electrical pulse signals into corresponding angular displacement or linear displacement. Its output angular displacement is proportional to the number of input pulses, and its rotational speed is proportional to the pulse frequency. It is a kind of output and The incremental drive element corresponding to the input pulse. The element has the advantages of large torque, small inertia and high response frequency, and has been widely used in today's industry. However, its step angle is relatively large, generally 1.5° to 3°, which often cannot meet the requirements of certain high-precision positioning and precision machining. Realizing subdivision drive is an effective method to reduce the step angle, improve the step resolution, ...

AI Technical Summary

Problems solved by technology

At present, most generator subdivision drivers use quantized trapezoidal waves and sine waves as the driving current waveforms of subdivision drives, but in fact, these current waveforms cannot obtain satisfactory subdivision accuracy on general generators.

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