CSNS/RCS谐振电源系统输出特性模拟研究

Research on the Resonant Power Supply's Output Characteristics of the Rapid Cycling Synchrotron of China Spallation Neutron Source by Simulation

对于快循环同步加速器谐振电源系统而言,负载磁铁、电抗器会产生极高的感应电压,实际工作中不具备测量条件。本文利用仿真软件,观测设备对地电压变化情况,验证电源与负载连接方式的合理性。此外,激励源为受控电流源,电源输出特性集中体现为输出电压的变化,在电感非线性变化不能忽略的情况下,本文通过搭建的仿真模型,寻找负载谐振单元内电容匹配方案,优化电源输出特性,并利用实际测量数据验证模型的可靠性以及分析的可行性。

For the resonant power supply system of the Rapid Cycling Synchrotron, there will be generated extremely high voltage at both ends of the inductive devices. And there is no good way to measure it. This paper verifies the rationality of the connection method between power supply and load, by using simulation software to observe the variation of the devices＇voltage to earth. Besides, the source of excitation is precisely controlled current source, so the power supply＇s output characteristics are concentrated reflected by the output voltage. This paper shows the way to adjust the capacitor to optimize the power supply＇s output characteristics by using simulation model, in the situation where inductance nonlinear changes cannot be ignored. At last, the model＇s reliability and the method＇s feasibility depending on the metrical data are verified.