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In Tokamak accelerators, the high-frequency switching-mode power supply (SMPS) causes electromagnetic interference that not only affects the public power system but also results in abnormal operation of other key equipment connected to the common ground terminal, such as the measurement and diagnosis system. In this article, to develop a model of the conducted interference of high-frequency SMPSs,...
Due to its working modes, the Switching Mode Power Supply (SMPS) has low electromagnetic compatibility with other systems, such as Langmuir probes used in ion-source accelerators for heating plasma. Its high-frequency Electromagnetic Interference (EMI) is analyzed for its bias power suppl y of its core snubber. Located in the same HV pole of the accelerator, the EMI of SMPS lets its Langmuir probes...
Owing to the use of ion source accelerators and RF facilities for plasma heating, high voltage and large currents are co-existed in ITER like fusion devices, such as CFETR (Chinese Fusion Engineering Testing Reactor) and EU DEMO. How to keep their electric safety is discussed. This paper reviews the tokamak experiences on electric fault protection and related snubber theory to cure these faults. A...
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