摘要
磁轴承已广泛应用于飞轮储能技术中,但磁轴承建模时存在不确定性问题,采用常规方法整定的控制器难以保证其优良的稳定性和抑制扰动能力。研究基于状态空间的径向磁轴承参数不确定H∞控制,运用于磁轴承状态反馈控制器设计中,并借助于MATLAB仿真工具给出了不同情况下H∞控制的仿真波形。研究结果表明:在所考虑的刚度参数不确定性范围内,基于H∞理论的控制器具有较好的稳定性、鲁棒性和抑制扰动能力。
Magnetic bearing has been applied to flywheel energy storage widely. The stability and ability of restraining disturbance cannot be easily guaranteed with the conventional parmneter tuning method of controller owing to system modeling uncertainty of magnetic bearing. An application of the H∞ control based on state-space to radical magnetic bearing was concerned for designing the state-feedback controller of magnetic bearing. The simulative waveforms of H∞ control were presented under different instances by using Matlab. The result of simulation showed that the controller based on H∞ theory has better stability, robustness and ability of restraining disturbance with respect to the system stiffness parameter varying in the allowed range.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2007年第5期558-562,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(50175013)
江苏省高技术研究计划(BG2006035)
国家高技术研究计划(2006AA05Z237)
关键词
储能飞轮
磁轴承
H∞控制
状态反馈
参数不确定性
energy storage flywheel
magnetic bearing
H∞ control
state feedback
parameter uncertainty
