摘要
高速飞轮储能系统广泛采用电磁轴承作为转子支撑部件。PD控制是常用的电磁轴承飞轮转子系统的振动控制策略,传统的PD控制策略通过对转子位移信号的微分运算来获取阻尼控制信号,但微分运算易引入噪声干扰。噪声干扰使得飞轮转子系统的阻尼不足,影响其振动控制性能,甚至引起系统失稳。针对此问题,提出了一种基于速度观测的新型PD控制策略,通过速度观测器得到阻尼控制信号,增强了控制系统的抗噪声干扰能力。介绍了新型PD控制策略的基本原理,并借助仿真和实验验证了新控制系统的性能,结果表明,基于速度观测的PD控制策略比传统的PD控制具有更强的抗噪声干扰能力及更宽的稳定域。
Active magnetic bearing(AMB)is usually used as the supporting structure of high-speed flywheel energy storage system.Proportional-derivative controller(PD controller)is widely applied to the vibration control of the active magnetic bearing flywheel rotor system.In the conventional PD controller,the damping control signals are calculated by the derivative of rotor displacement signals,however,the differential operation may result in noise interference.The control system cannot be damped adequately due to the influence of noise interference,which makes the performances of vibration control of the flywheel rotor system become worse and may lead to system instability.For this problem,a novelty PD control strategy based on velocity observer is proposed.In the control strategy,the damping control signals are calculated by a velocity observer to improve the ability of against noise.Firstly,the basic principle of the novelty control strategy proposed is described.Then the performances of novelty control system are validated by simulations and experiments,respectively.The results show that,compared to the conventional PD control method,the novelty PD control strategy proposed has better ability of against noise and larger stability region.
作者
马航
陈亮亮
冯惊鸿
杨谊华
伍家驹
邱天
MA Hang;CHEN Liang-Liang;FENG Jing-hong;YANG Yi-hua;WU Jia-ju;QIU Tian(School of Information Engineering,Nanchang Hangkong University,Nanchang 330063,China)
出处
《南昌航空大学学报（自然科学版）》
CAS
2020年第2期1-6,共6页
Journal of Nanchang Hangkong University(Natural Sciences)
基金
国家自然科学基金(51967015)
南昌航空大学博士科研启动金(EA201804206)。
关键词
电磁轴承
飞轮储能
速度观测
PD控制
active magnetic bearing
flywheel energy storage system
velocity estimation
PD control
