科技创新导报
科技創新導報
과기창신도보
Science and Technology Innovation Herald
2015年
26期
93-95
,共3页
二型模糊集合%故障诊断%扩展二型模糊系统
二型模糊集閤%故障診斷%擴展二型模糊繫統
이형모호집합%고장진단%확전이형모호계통
Type-2 fuzzy sets%Fault diagnosis%Expanded type-2 fuzzy system
随着二型模糊逻辑系统的蓬勃发展,在各个领域有着广泛的应用.该文在扩展二型模糊集合的基础上,提出了扩展二型模糊系统,并给出相应的设计算法.考虑到扩展隶属函数取值范围的增加,可将系统残差输出划分为正常、异常和故障三个状态.新增加的异常状态可以得到更为清晰的诊断结果,能有效的避免误诊和漏诊.针对非线性飞机模型,仿真结果表明了该方法的有效性.
隨著二型模糊邏輯繫統的蓬勃髮展,在各箇領域有著廣汎的應用.該文在擴展二型模糊集閤的基礎上,提齣瞭擴展二型模糊繫統,併給齣相應的設計算法.攷慮到擴展隸屬函數取值範圍的增加,可將繫統殘差輸齣劃分為正常、異常和故障三箇狀態.新增加的異常狀態可以得到更為清晰的診斷結果,能有效的避免誤診和漏診.針對非線性飛機模型,倣真結果錶明瞭該方法的有效性.
수착이형모호라집계통적봉발발전,재각개영역유착엄범적응용.해문재확전이형모호집합적기출상,제출료확전이형모호계통,병급출상응적설계산법.고필도확전대속함수취치범위적증가,가장계통잔차수출화분위정상、이상화고장삼개상태.신증가적이상상태가이득도경위청석적진단결과,능유효적피면오진화루진.침대비선성비궤모형,방진결과표명료해방법적유효성.
With the vigorous development of the type-2 fuzzy logic system,numerous applications are used in various fields. In this paper,we proposed expanded type-2 fuzzy system based on expanded type-2 fuzzy set.Moreover,corresponding design algorithm is given.As we added negative values to the membership function,the residual error outputs could be clearly divided into three statuses:normal,abnormal,fault.The increase of new state could present more clear results,which effectively avoid misdiagnosis and missed diagnosis.The simulation of aircraft indicates efficiency of method.
