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中文摘要：
主要讨论了分数阶PIλ控制方法并将其应用到交流电机调速系统中.介绍了分数阶PI控制器的设计,并利用Tustin算子生成函数将分数阶微积分由S域变换到Z域,利用连分式方法展开,实现了分数阶PIλ控制器的离散化.将其应用到交流电机调速系统,对分数阶控制器和传统整数阶PID控制器控制特性进行实验对比,研究结果表明：分数阶PIλ控制器相比传统整数阶PID控制器具有更好的控制效果.
英文摘要：
A fractional order PIλcontroller in speed adjustment system of AC motor is proposed, and the design of fractional order PIλ controller is introduced. The fractional order differentiator/integrator is transformed from S to Z using Tustin generating function, and the fractional order calculus can be approximated by continued fraction expansion which implements the discretization of the fractional order PIλ controller. It shows that the fractional order PIλ eontroller has a better performance than the integer order PID controller.
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