Self-adaptive control system for main motor and auxiliary motor of straw briquetting machine

Abstract

The invention discloses a self-adaptive control system for a main motor and an auxiliary motor of a straw briquetting machine. A Hall current sensor is used for monitoring working current of a tested lead of a straw briquetting main motor, wherein a single-chip unit is used for processing voltage signals transmitted by the Hall current sensor to digital signals and outputting the digital signals; a DA converting unit is used for converting the digital signals output by the single-chip unit into analog quantity and outputting the analog quantity; a first voltage following unit is used for carrying out voltage follow on the analog quantity converted by the DA converting unit and outputting the analog quantity; an operational amplifying unit is used for carrying out operational amplification on voltage signals output by the first voltage following unit and outputting the voltage signals; a frequency converter unit is used for carrying out frequency conversion control on a material conveying motor according to the received and amplified voltage signals. The control system can be used for feeding the signals to a frequency conversion controller of the material conveying motor; the rotation rate of the material conveying motor is controlled; the self-adaptive control of load of the main motor and the auxiliary motor is implemented; the production efficiency and the intelligence degree of the device are improved; the service life of the straw briquetting machine is prolonged.

Description

technical field [0001] The invention relates to the technical field of straw processing equipment control, in particular to an adaptive control system for main and auxiliary motors of a straw briquetting machine. Background technique [0002] The straw briquetting machine is a device that crushes and compresses biomass raw materials such as straw to make efficient and environmentally friendly fuel or feed. The working current of the briquetting main motor of the straw briquetting machine will be changed by the input amount of biomass raw materials during work. The working current will inevitably increase, and the material conveying motor of the general straw briquetting machine has the problem of uneven feeding, sometimes more and sometimes less. The production efficiency and service life of the briquetting machine. In addition, there will be a phenomenon that the briquette machine runs empty, resulting in waste of electric energy, so as to increase production costs. Con...

AI Technical Summary

Problems solved by technology

[0003] The invention provides an adaptive control system for the main and auxiliary motors of a straw briquetting machine, which can overcome the shortcomings of the existing straw briquetting machine that the machine body is blocked due to uneven feeding and thus affect the production efficiency and service life of the briquetting machine. Realize the adaptive control of the load of the main motor of the briquetting block and the material conveying motor, improve the production efficiency and intelligence of the equipment, and reduce the cost at the same time

Images