The Exploitation Of Measure And Control System On Complicated Temperature And The Study Of Variable Structure Control

At present, there is widely a class of nonlinear , badly delay and variable parameter complicated temperature object(CTO) in the industries of electric power, metallurgy, petroleum and chemistry and architecture. Putting effective control on it has been a attention and focus in control group.In this paper, two aspects about it are researched. One side aims at the fact that a series of problems, danger difficulty and disturbing production, are faced when debugging controlled object and running a algorithm on the spot. For this, a kind of physical simulation system of complicated temperature object is designed and made that is controlled by computers, which becomes a agency of debugging the algorithm directly in technical locale and results in the conveniences for academic study and practical application. The other hand is that variable structure control algorithm with sliding mode is studied . designed and realized that is used to control the object, which is a completely late-model attempt. The simulation results indicate that the control algorithm has remarkable superiority in speedness compared with the conventional PID control algorithm. In addition, it is a no-error control and has robustness.