The new Error Field Correction Coil controller system in the Joint European Torus tokamak

摘要: Abstract Recently at JET, performance issues and practical limitations led to the decision of replacing EFCCs voltage amplifiers. The opportunity was also taken reformulate improve controller application by incorporating it into a new real-time software framework, developing control algorithm revising time synchronization mechanism whilst maintaining essentially same Versa Module European (VME) based hardware components. Furthermore, graphical user interface configuration utility has been developed mainly accommodate controller’s waveform generator capability nesting waveforms enabling simultaneous sweeping in frequency, amplitude offset. In this paper, global overview will be provided focusing on above mentioned improved elements. Preliminary results operation system during JET pulses presented.