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本文第一部分论述了离散相似法对带函数发生器的宽调速系统进行数字仿真的原理,以速度调节器和电流调节器为例说明了该方法的具体应用,并对非线性环节的处理作了较详细的叙述。本文提出了离散相似法数字仿真中出现的一个新问题,即积分环节(包括比例积分等积分环节)后面带有非线性环节时,不仅要对输出量y作非线性处理,而且还必须对状态变量x也作非线性处理。文章以该系统中的速度调节器(比例积分环节)为例说明了处理这类非线性环节的思路和程序框图。第二部分是在仿真基础上做的辅助优化设计,这部分扼要论述了采用全面寻优法进行搜索,不断收缩搜索区域,得出全面最优值的原理和步骤。最后给出了寻优结果及响应曲线。
In the first part of this paper, the discrete analogous method is introduced to simulate the wide speed governing system with a function generator. The speed regulator and current regulator are taken as an example to illustrate the application of this method. The nonlinear processing A more detailed description. In this paper, we present a new problem in digital simulations of discrete similarity method. That is to say, we should not only deal nonlinearly with the output y, but also have nonlinearities in the integral links (including integration points such as proportional integral) The variable x is also treated non-linearly. The article takes the speed regulator (proportional integral part) in the system as an example to illustrate the idea and the block diagram of processing such nonlinear part. The second part is based on the simulation of the auxiliary optimization design, this part briefly discusses the use of comprehensive optimization method to search, continue to shrink the search area, the overall optimal value of the principles and steps. Finally, the optimal results and response curves are given.