摘要：针对智能体通信时延和能源损耗问题,研究了带有时延和切换拓扑的二阶多智能体系统动态事件触发编队控制方法。在考虑通信时延的基础上,设计了一种动态事件触发机制,通过动态调整事件触发条件,使系统能够根据实时状态进行控制。根据该控制方法,建立了时延控制输入、切换拓扑和动态事件触发下闭环控制系统的数学模型,并利用李雅普诺夫稳定性理论和线性矩阵不等式理论证明了其稳定性。仿真结果表明,与现有方法相比,所提方法可以避免大量的触发,节约了网络资源,并提高了多智能体系统的收敛性能。

摘要：For the application of high intensity continuous wave （CW） proton beam acceleration, a new superconducting accelerating structure for extremely low β protons working in TE210 mode has been proposed at Peking University. The cavity consists of eight electrodes and eight accelerating gaps. The cavity＇s longitudinal length is 368.5 mm, and its transverse dimension is 416 mm. The RF frequency is 162.5 MHz, and the designed proton input energy is 200 keV. A peak field optimization has been performed for the lower surface field, The accelerating gaps are adjusted by phase sweeping based on KONUS beam dynamics. The first four gaps are operated at negative synchronous RF phase to provide longitudinal focusing. The subsequent gaps are 0° sections which can minimize the transverse defocusing effect. Solenoids are placed outside the cavity to provide transverse focusing. Numerical calculation shows that the transverse defocusing of the KONUS phase is about three times smaller than that of the conventional negative synchronous RF phase. The beam dynamics of a 10 mA CW proton beam is simulated by the TraceWin code. The simulation results show that the beam＇s transverse size is under effective control, while the increase in the longitudinal direction is slightly large. Both the TraceWin simulation and the numerical calculation show that the cavity has a relatively high effective accelerating gradient of 2.6 MV/m. On the whole, our results show that this new accelerating structure may be a possible candidate for superconducting operation at such a low energy range.