Low Power Consumption Nonlinear Control with H∞ Compensator for a Zero-Bias Flywheel AMB System
Low Power Consumption Nonlinear Control with H∞ Compensator for a Zero-Bias Flywheel AMB System
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DOI：
10.1177/1077546304043544
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发表时间：
2004-08
影响因子：
2.8
通讯作者：
S. Sivrioglu;K. Nonami;M. Saigo
中科院分区：
文献类型：
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作者：
S. Sivrioglu;K. Nonami;M. Saigo
针对储能飞轮主动磁轴承（AMB）系统，对基于控制电流切换规则的非线性控制方法进行了实验研究。在所提出的控制中，AMB 的每个轴中只有一个电磁体在任何给定时间都有电流流动，具体取决于转子位移。这导致功耗低于采用偏置电流的线性控制。刚性转子-AMB系统的运动方程被转换为具有分散结构的控制设计。为了计算非线性控制电流，为 AMB 的每个轴设计了 H ∞ 补偿器。使用高速数字信号处理器对所提出的方法进行了实验验证。
A nonlinear control approach based on a control current switching rule is studied experimentally for an energy storage flywheel active magnetic bearing (AMB) system. In the proposed control, only one electromagnet in each axis of the AMB has a current flow at any given time, depending on the rotor displacement. This results in a power consumption that is lower than a linear control employing a bias current. The equation of motion for the rigid rotor-AMB system is transformed to have a decentralized structure for the control design. To compute nonlinear control currents, an H ∞ compensator is designed for each axis of the AMB. The proposed approach is experimentally verified using a high-speed digital signal processor.