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本文利用“最小响应法”给出了 N≥2阶无静差采样控制系统的设计公式.作者指出:对于某类闭环控制系统,在给定阶跃响应最大超调量σ_(max)的条件下,可以找出最佳比值T/T_(T 为系统的采样周期,T_(?)为对象的不便克服的等效小时间常数之和),使系统获得相应阶最大误差系数 K_(N+1),从而可使系统达到快速精密的控制指标。为了在工程设计中应用方便,文中还给出了二至六阶无静差的σ_(max),T/T_(?),K_(N+1)T(?)最佳参数组,使得这类闭环控制系统的设计最佳化和简易化.
In this paper, the design formula of N≥2 order no-error sampling control system is given by using the “minimum response method.” The author points out that for a given type of closed-loop control system, given the condition of maximum step overshoot σ_ (max) , We can find out the optimal ratio T / T_ (T is the sum of the sampling period of the system and T_ (?) Is the sum of the equivalent small time constants which are inconvenient to overcome) to make the system obtain the maximum error coefficient K_ (N + 1), so that the system can achieve rapid precision control indicators. In order to facilitate the application in engineering design, the optimal parameter sets of σ_ (max), T / T_ (?) And K_ (N + 1) T Class closed-loop control system design optimization and simplification.