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Design of the control system of acceleration grid power supply for CFETR N-NBI prototype

机译:CFETR N-NBI原型机加速电网电源控制系统设计

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In order to realize the 200 keV negative-ion-based neutral beam injector (N-NBI) prototype of China Fusion Engineering Test Reactor, an acceleration grid power supply (AGPS) is under development. Adopting a single stage inverter type topology, the AGPS is rated at 200 kV/25A for 3600 s. Here, the paper presents a distributed control system based on PCI extensions for instrumentation (PXI) and field programmable gate array (FPGA) technology, which can fulfill the high requirements in terms of the control strategy, malfunction protection, integration with the upper control system and real-time monitoring, highlighting the operation sequence both in normal and abnormal scenarios. In addition, a 10 kV/6A AGPS prototype has been realized to verify the control system. The distributed control system can respond to the interlock signal from the upper controller within 2 mu s while disabling the inverter within 20 mu s in case of an abnormal current or voltage output status.
机译:为了实现中国聚变工程测试反应堆的基于200 keV负离子的中性束注入器(N-NBI)原型,正在开发加速电网电源(AGPS)。 AGPS采用单级逆变器类型的拓扑结构,在200 kV / 25A的额定电压下持续3600 s。在此,本文提出了一种基于PCI仪器仪表扩展(PXI)和现场可编程门阵列(FPGA)技术的分布式控制系统,该系统可以满足控制策略,故障保护以及与上位控制系统集成方面的高要求。和实时监控,突出显示正常和异常情况下的操作顺序。此外,已经实现了10 kV / 6A AGPS原型以验证控制系统。当电流或电压输出状态异常时,分布式控制系统可以在2毫秒内响应来自上位控制器的互锁信号,同时在20毫秒内禁用逆变器。

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