Abstract
Currently, the vibration transmission machines are widely used in mining, metallurgy, coal, chemical, building material, light industry, food, and machinery manufacturing industries. Inertia vibrator is divided into two categories - non-resonant and resonant. The former has the following advantages: simple structure, conveniently manufactured, and stable working state. That is why non-resonant inertia vibrators are mostly used in engineering practices. The biggest disadvantage of non-resonant type is bigger power consumption. In contrast, the resonant type is durable, has compact structure and has less energy consumption. But it is difficult to adjust the working status; small frequency drift will cause large amplitude fluctuation. In order to improve energy efficiency and stability, we used vibration velocity as a closed-loop feedback signal and microcomputer technology to control resonance conveyor. In the control unit we utilized quadratic optimal control algorithm of PID parameter optimal tuning to maximize the automatic frequency tracking and achieved steady state of resonance and optimal energy efficiency.
