论文部分内容阅读
在针对航天器姿态控制的地面仿真验证中,存在建模复杂、模型保真度不高、不易部署、实时性不好等问题。参照地面气浮台实验,使用MapleSim多领域物理建模工具,建立了包括飞轮、推力器、多体动力学的航天器基座模型。将模型转换为可在LabVIEW环境下运行的C代码,部署于PXI实时仿真平台,建立了实时仿真系统,对姿态控制器进行了仿真验证。该方法采用非因果建模思想,解决了仿真中存在的问题,为系统样机模型的快速建立以及控制器的测试验证提供了新的解决方案。
In the ground simulation for spacecraft attitude control, there are some problems such as complicated modeling, low fidelity of model, difficult to deploy and poor real-time performance. According to the experiment of ground flotation platform, a model of spacecraft base including flywheel, thruster and multi-body dynamics was established by using MapleSim multi-domain physical modeling tools. The model is converted into C code which can be run in LabVIEW environment. It is deployed in PXI real-time simulation platform and a real-time simulation system is established. The attitude controller is verified by simulation. This method uses the non-causal modeling idea to solve the problems existing in the simulation and provides a new solution for the rapid establishment of the system prototype model and the test verification of the controller.