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以10MW高温气冷堆中氦气透平试验转子模型为对象,设计了一种控制器。该控制器采用模态截断的方法获得电磁轴承系统的数学模型,并采用线性二次型Gauss方法,采用了一个同LQG(linearquadraticGaussian)控制器相串联的相位补偿器,以便有效地阻尼转子的模态振动。经过反复的试验调试和控制器参数修改,不但使转子顺利超越第一阶挠性临界旋转速度,而且实现转子停留在该旋转速度长期稳定的运行,积累了实际工程中电磁轴承支承的转子过临界旋转速度的经验。试验表明电磁轴承能有效地抑制转子的振动。
Based on the helium turbine test rotor model of 10MW HTR stack, a controller was designed. The controller adopts the method of modal truncation to obtain the mathematical model of the electromagnetic bearing system. The linear quadratic Gauss method is adopted to adopt a phase compensator in series with the LQG (linearquadratic Gaussian) controller to effectively dampen the mode of the rotor State vibration. After repeated test and commissioning and controller parameter modification, not only the rotor smoothly beyond the first-order critical speed of flexibility, but also to achieve the rotor to stay at the rotational speed of long-term and stable operation, the accumulation of the actual project in the electromagnetic bearing support rotor over the critical Rotation speed experience. Experiments show that the electromagnetic bearing can effectively suppress the vibration of the rotor.