计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
21期
74-78
,共5页
规则爆炸%结构优化%矢量“隶属度”
規則爆炸%結構優化%矢量“隸屬度”
규칙폭작%결구우화%시량“대속도”
rule explosion%structure optimization%vector“membership”
针对传统模糊控制器在控制过程中容易发生规则爆炸的缺点，提出一种基于矢量“隶属度”的模糊控制器结构优化方法。这种优化方法通过对传统模糊控制器的隶属度和模糊等级进行改进，把当前输入量的相对方向和大小等级分别反映在矢量“隶属度”和标量模糊等级上，从而能够大大减少模糊规则数目，降低结构复杂度，提高控制效率。直流电动机的仿真控制效果表明，矢量“隶属度”法优化后的控制器比传统控制器结构简单和误差小，从而验证了这种方法的有效性和可行性。
針對傳統模糊控製器在控製過程中容易髮生規則爆炸的缺點，提齣一種基于矢量“隸屬度”的模糊控製器結構優化方法。這種優化方法通過對傳統模糊控製器的隸屬度和模糊等級進行改進，把噹前輸入量的相對方嚮和大小等級分彆反映在矢量“隸屬度”和標量模糊等級上，從而能夠大大減少模糊規則數目，降低結構複雜度，提高控製效率。直流電動機的倣真控製效果錶明，矢量“隸屬度”法優化後的控製器比傳統控製器結構簡單和誤差小，從而驗證瞭這種方法的有效性和可行性。
침대전통모호공제기재공제과정중용역발생규칙폭작적결점，제출일충기우시량“대속도”적모호공제기결구우화방법。저충우화방법통과대전통모호공제기적대속도화모호등급진행개진，파당전수입량적상대방향화대소등급분별반영재시량“대속도”화표량모호등급상，종이능구대대감소모호규칙수목，강저결구복잡도，제고공제효솔。직류전동궤적방진공제효과표명，시량“대속도”법우화후적공제기비전통공제기결구간단화오차소，종이험증료저충방법적유효성화가행성。
According to shortcomings of traditional fuzzy controller prone to rule explosion in the control process, this paper puts forward a method which is based on vector“membership”fuzzy controller struc-ture optimization. This optimi-zation method is based on the improvement of the traditional fuzzy controller’s membership and degree level. The current inputs relative direction and size gradation reflect in vector“membership”and scalar fuzzy level, thus can greatly reduce the number of fuzzy rules, to reduce the structure complexity and improve the control efficiency. The simulation of DC-motor control effect shows that this kind of controller has a simple structure and smaller error than traditional controller, and also proves the feasibility and effectiveness of this method.
