【作者】 孙亮； 杨飞； 于建均； 陈梅莲；

【Author】 Sun Liang, Yang Fei, Yu Jianjun, Chen Meilian Institute of Electric Information and Control Engineering, Beijing University of Technology, Beijing, 100022

【机构】 北京工业大学电子信息与控制工程学院；

【摘要】 利用粗糙集合理论对控制量作了粗糙化,实现了控制系统的变精度控制。研究结果表明,对精确控制量的粗糙化,可以有效地保留控制系统的信息量,可以实现精确量集合向较少数量控制规则的转换,可以实现相对误差均衡的变精度控制策略。经仿真实验结果验证,应用指数粗糙集合可变精度控制器,可以在满足系统控制性能指标的条件下使受控系统的运动加速。因此该种控制器设计是一种有效的非线性控制器设计方法。更多还原

【Abstract】 Applying the rough set theory make the controlling quantity roughened, and realizes a variable precision control. The result of study reveal that the information of control system can be conserved by roughen the controlling quantity, the conversion from precision quantity set to smaller amount control rules can be achieved, the variable precision control can be realized by the means of equal relative error. From the simulation result check, it can be achieved that make the system moving more quickly than before by using the exponential rough set controller and the system performance can be satisfied at the same time. So that it is an effective method for nonlinear controller design.更多还原