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中文摘要：
在镀锌生产线中垂直带钢水平晃动会造成镀层不均。基于磁悬浮技术能够实现无接触稳定的特点，研制了用于带钢防抖的磁悬浮系统。分析建立了系统的数学模型，设计了PID控制器。研究设计了包括传感器、控制器、功率放大器的磁悬浮电控系统。在模拟试验台上对系统的性能进行了试验研究。通过试验证明了该磁悬浮系统能够稳定地悬浮带钢，减小带钢在外力扰动下的振幅和回到稳态所需的调节时间，并且在激振试验中成功地使带钢的振幅减小了71．4％。
英文摘要：
In continuous hot dip galvanizing line, shaking of vertical steel strip in horizontal direction will cause unevenness of the coating thickness. As magnetic levitation technology can keep object stable without any contact, a system of electromagnetic suspension was developed to keep vertical steel strip stable in horizontal. Based on research on the mathematic model of the system, PID controller was designed. And the electric control system which including sensors, controller and power amplifier was designed. The experimentation was implemented in the test-bed and the results were given out. It proved that the system not only can keep vertical steel strip stable in horizontal direction but also can reduce amplitude of vertical steel in the effect of outside force. Moreover, as shown in the excitation experimentation, the amplitude of system was reduced by 71.4%.
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