电弧炉电极调节系统的自适应死区补偿控制

电弧炉电极调节系统存在死区非线性,这将给控制系统带来稳态误差,甚全会造成系统不稳定.为此,针对断点不对称且斜率不相等的死区特性,提出一种自适心死区补偿方法.通过引入死区逆非线性环节,并在线更新未知的死区逆参数,达到完全补偿死区的效果.利用Lyapunov方法证明了参数估计误差的收敛性.仿真结果验证了所提出方法的有效性.

Adaptive dead zone compensation control of electrode regulating system of electric arc furnace

Dead zone exists in electrode
regulating system of electric arc furnace, which can bring the
steady-state error to control system and even cause the instability
of system. Therefore, for the dead zone nonlinearity with asymmetric breakpoint
and unequal slope, an adaptive dead zone compensation method is
proposed. By introducing the dead zone inverse nonlinearity and
updating the unknown dead zone inverse parameters on-line, dead zone
is compensated completely. The convergence of parameter estimation
error is proved by using Lyapunov method. The simulation results show the effectiveness of the
proposed algorithm.