火箭炮伺服系统的模糊内模控制

摘要

In order to realize high precision position tracking control in some ac servo system, aimed at all kinds of uncertainties such as widely changing moment of inertia and load moment, and strong impact moment, according to excellences of IMC in system stability and robust theory analysis, a internal mode control tactics is put forward. However, this method relies on accurate model. Therefore, combined with fuzzy control, a fuzzy IMC is put forward. Simulation results show that compared with conventinal PID control, this control tactics can enhance dynamic performances and steady-state precision, satisfying performance requests.%为了实现某交流伺服系统的高精度位置跟踪控制,针对实际系统中所存在的转动惯量和负载力矩变化大、冲击力矩强等各种不确定因素,根据内模控制在控制系统稳定性和鲁棒性理论分析方面的优势,采用内模控制可以提高控制器的设计水平,因此提出了一种内模控制方法.但是这种方法对模型的依赖性较大,因此结合模糊控制的优点,提出了一种模糊内模控制方法.仿真结果表明,与传统PID控制相比,该控制方法可以提高伺服系统的动、静态特性,使整个系统获得较好的性能.