CAJ | 학술논문

针对一类非仿射非线性系统提出了自适应模糊控制方法，该方法把不确定非线性系统表示为定常线性子系统加非线性项的形式，然后采用模糊逻辑系统设计补偿器来消除非线性项的影响。引入时变死区函数对模糊逻辑系统中的未知参数进行自适应调节，并对时变死区设计了自适应律。证明了该方法可使闭环系统的所有信号均有界，且使跟踪误差收敛到原点的小邻域内。仿真结果表明了该方法的有效性。
침대일류비방사비선성계통제출료자괄응모호공제방법，해방법파불학정비선성계통표시위정상선성자계통가비선성항적형식，연후채용모호라집계통설계보상기래소제비선성항적영향。인입시변사구함수대모호라집계통중적미지삼수진행자괄응조절，병대시변사구설계료자괄응률。증명료해방법가사폐배계통적소유신호균유계，차사근종오차수렴도원점적소린역내。방진결과표명료해방법적유효성。
In this paper, an adaptive fuzzy control scheme is presented for a class of non-affine nonlinear systems. In this scheme, the unknown nonlinear plant is represented by an equivalent model composed of a simple linear submodel plus a nonlinear term, a fuzzy system is introduced to compensate for nonlinear term. The unknown parameters in fuzzy logic system are adjusted by time-varying dead-zone which its size is adjusted adaptively. The scheme guarantees that all signals in the closed-loop system are bounded, and the tracking error converges to a small neighborhood of the origin. Simulation results demonstrate the effectiveness of the proposed approach.