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反作用飞轮是三轴稳定小卫星高精度姿态控制系统的首选执行机构。针对反作用飞轮多领域耦合特性及其高置信度数值仿真问题,探索了基于Modelica语言实现反作用飞轮多领域建模与仿真的可行性。在反作用飞轮控制领域、电气领域、力学领域等不同领域数学模型的基础上,采用Modelica搭建了相应的反作用飞轮多领域仿真模型,并在设定工况下对其动态特性进行了数值仿真分析,得到了飞轮系统的多领域耦合特性。该仿真模型实现了飞轮系统不同领域模型之间的无缝集成和数据交换,能够有效分析各领域间的耦合特性。
Reaction flywheel is the preferred actuator of high precision attitude control system of three-axis stabilized small satellite. Aimed at the multi-domain coupling characteristics of reaction flywheel and its numerical simulation of high confidence, the feasibility of multi-domain modeling and simulation of reaction flywheel based on Modelica language was explored. Based on the mathematical models of different fields such as reactive flywheel control field, electrical field and mechanics field, the corresponding multi-domain simulation model of reaction flywheel is established by using Modelica. The dynamic characteristics of the reaction flywheel are numerically simulated and analyzed under the set condition, The multi-domain coupling characteristics of the flywheel system are obtained. The simulation model realizes seamless integration and data exchange between different models of flywheel system, and can effectively analyze the coupling characteristics among various fields.