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针对在三回路驾驶仪设计中,希望对开环穿越频率进行约束,以保证设计完成后的系统在考虑驾驶仪各硬件动态特性后仍能满足稳定性要求。在极点配置的计算方法基础上,构造以系统非主导极点为变量,以开环穿越频率为约束的非线性方程,利用方程求解程序求解相应的非主导极点值,进而完成驾驶仪设计。驾驶仪设计实例验证表明,这一方法便捷可行,非常适用于三回路驾驶仪工程设计。
In the design of the three-loop pilot, it is hoped that the open-loop crossover frequency is constrained to ensure that the designed system can still meet the stability requirements after considering the dynamic characteristics of the pilot’s hardware. Based on the calculation of the pole placement, a nonlinear equation constrained by the open-loop crossover frequency is constructed based on the non-dominant pole of the system. The non-dominant pole value is solved by the equation solving program, and the pilot’s design is completed. Validation of pilot design example shows that this method is convenient and feasible and is very suitable for the design of three-loop pilot project.