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在中国散裂中子源工程中,需要设计1台1.6GeV快循环同步质子加速器.加速器的磁铁电源系统驱动9套怀特电路.这9套电源的输出都是带直流偏置的交流电流源.在每个重复加速周期内,电流(磁场)必须保证相位和幅值精度.数字控制技术的可靠性、温度漂移抑制、高集成性等等使得它在越来越广泛地应用于控制电路的设计中.为了达到中国散裂中子源电源系统苛刻的指标,本文提出了一种数字化控制方案.
In China’s spallation neutron source project, a 1.6GeV fast cycling synchronous proton accelerator needs to be designed, and the accelerator’s magnet power system drives nine sets of white circuits.The outputs of these nine sets of power supplies are AC current sources with DC bias. The current (magnetic field) must ensure the phase and amplitude accuracy during each repetitive acceleration cycle.The reliability of digital control techniques, temperature drift suppression, high integration, etc. make it more and more widely used in the control circuit design In order to meet the harsh index of China’s spallation neutron source power system, this paper presents a digital control scheme.