The Research of Tobacco Leaf Roasting Control Tactics Based on Fuzzy PID

Abstract

In connection with different require of temperature and humidity of five roast period during tobacco leaf roasting, propose control tactics of tobacco leaf roast based on Fuzzy PID. In order to increase the color grade, savory grade and quality grade of tobacco leaf, the control tactics used Fuzzy PID technology, decrease difference in temperature between roast house top and bottom, achieve fundamental leveling of temperature through adjusting rotate speed of axle flow draught fan, the control tactics can achieve heating up and steadying temperature through controlling oxygen quantity of coal burning by adjusting rotate speed of oxygen fan, the control tactics can keep humidity smooth in roast house by controlling quantity of air entering roast house. In fact, the control tactics can affectively control running states of object, it has good characteristics such as high controlling precision, good stability, this is the reason that ensure the quality of tobacco leaf roasting.