Estimation of superconducting cavity bandwidth and detuning using a Luenberger observer
Bozo Richter, Andrea Bellandi, Julien Branlard, Leon Speidel, Annika Eichler
由于超导技术的进步,预计未来十年将有几个连续波直线加速器。 对于这些机器来说,跟踪主空腔参数至关重要,例如谐振器带宽和调谐器。 带宽产生关于空腔超导状态的信息。 应尽量减少矫正,以限制操作腔体所需的功率。 这些参数的估计通常实现在低水平射频控制系统的数字电子学中,以尽量减少计算延迟。 在本过程中,我们介绍了一种使用 Luenberger 观察者计算带宽和调谐的方法。 与以前的方法相反,状态观察者以本机控制系统样本速率产生估计,而无需显式过滤输入信号。 此外,可以通过调整增益参数直观地控制估计的错误收敛性。 稿件中介绍了对派生观察员的实施情况考虑和测试结果。
Enabled by progress in superconducting technology, several continuous wave linear accelerators are foreseen in the next decade. For these machines, it is of crucial importance to track the main cavity parameters, such as the resonator bandwidth and detuning. The bandwidth yields information on the superconducting state of the cavity. The detuning should be minimized to limit the required power to operate the cavity. The estimation of these parameters is commonly implemented in the digital electr...
