Research Of The BF Winch Speed Control System

Blast Furnace Feeding winch is one of the key equipment, most of the current domestic BF-300 m~3 the main winch by way of rotor speed governor string resistance, but resistance to burning, With varying degrees of elastic rope winch, sometimes expected to "overhead" incident has seriously affected production, the system needs to be transformed.This paper induction motor that more than one variable, strong coupling, time-varying parameters of the complex nonlinear systems, systematic study of the induction motor parameter identification with the state estimation methods, the analysis of the various AC Motor Speed way the pros and cons.Rotor field oriented control system to speed the exchange of properties of a qualitative leap, asynchronous motor speed sensor vector control is to increase the system's simplicity and robustness, such systems need to solve two problems: the estimated speed And the rotor flux observation. The system simulation experiments show that, based on the model reference adaptive system of vector control system has good static and dynamic performance, choose the vector control converter solution feed system control issues.Finally, this paper, which is based on vector control of the induction motor Frequency Control System programme. Frequency Control of the main circuit design is a unique power circuit design, it is necessary to comply with the design of the power of the general laws and Frequency Control System should also consider the special circumstances, for control purposes choice inverter, by controlling the realization of the terminal control System, properly set up a command and parameters such as frequency source, a PLC control ensure speed control accuracy and control circuit to consider the anti-jamming measures, the hardware and software has been optimized design, thus ensuring a system of real-time control and safety.