摘要: ADS加速器面临的一大技术挑战是高可用性要求，进行固态功率源可用性设计是为ADS加速器的可用性设计与分析做准备。首先对CiADS的可用性要求进行了分配，固态功率源的分配结果为0.999；然后对固态功率源进行了初步可用性设计，分析的结果无法满足要求；最后对固态功率源进行了冗余设计，使用Reliasoft软件建立了固态功率源的可靠性框图，分析结果显示：满足一定的维修条件下，当其他元件的平均故障间隔时间（MTBF）达到171 702 h，25/28冗余设计可以满足0.999的可用性要求。


One of the challenging technologies of ADS is the high availability requirement. The availability design of the solid-state amplifier is the preparation for ADS. Firstly the availability requirement of CiADS is proposed as 0.8. The distribution result of the solid-state amplifier is 0.999 according to this requirement. Then the availability result shows the preliminary design of solid-state amplifiers can not reach the availability requirement. At last the power loss is considered to build the k/N redundancy model of the main amplifier and the mean time between failure (MTBF) is calculated for various redundancy models. The reliability block diagram of the solid-state amplifier is set up by Reliasoft and the simulation results show that the 25/28 redundancy model can meet the requirement 0.999 when MTBF of other components reaches 171 702 hours with the certain maintenance.