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TY - CONF AU - Zeng, R. AU - Troeng, O. ED - Eshraqi, Mohammad ED - Trahern, Garry ED - Schaa, Volker RW TI - Investigation to Improve Efficiency and Availability in Control and Operation of Superconducting Cavity at ESS J2 - Proc. of HB2016, Malmö, Sweden, July 3-8, 2016 C1 - Malmö, Sweden T2 - ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams T3 - 57 LA - english AB - The higher efficiency and higher availability (fault-tolerant oriented) of RF&Cavity system (with beam loading) to operate at, the more dynamic details needs to be identified, so as to have the abilities (a) to work at nonlinearities, (b) to work close to limitation, and (c) to change operation point quickly and correctly. Dynamic detail identifications rely heavily on high precision measuring and characterizing basic cavity parameters (Ql, R/Q, dynamic detuning, phase and amplitude) and system behaviours under beam-RF-cavity interactions. It is especially challenging to characterize these dynamics under varying operating points or environment. Advanced technologies in LLRF and ICS providing real time/online characterizing will be the key enablers for addressing such challenges. However, to be successful, the deployment of these technologies must be embedded within local conditions taking into account available resources, existing hardware/software structures and operation modes. Several improvement approaches will be introduced. For example, 15% or more energy efficiency improvement at ESS will be obtained by reduction of power overhead and optimization of operation. PB - JACoW CP - Geneva, Switzerland SP - 474 EP - 479 KW - cavity KW - operation KW - klystron KW - LLRF KW - controls DA - 2016/08 PY - 2016 SN - 978-3-95450-185-4 DO - 10.18429/JACoW-HB2016-THAM4X01 UR - http://jacow.org/hb2016/papers/tham4x01.pdf ER -