A series of techniques is presented that has been developed to optimize the output magnetic field of the feedback control system on the RFX-mod reversed field pinch device. With the aim of minimizing the harmonic distortion and correcting localized error fields, these methods should be lightweight for real-Time application and effective in improving the performance of a system that is routinely used for active control of magnetohydrodynamic plasma instabilities. The implementation of simple, linear algebra based, real-Time optimization methods will be described along with proof of the beneficial effects sought. The focus of this paper is set on a spurious harmonics reduction technique based on the decoupling of sensors and actuators; a description of its derivation will be given together with the implementation in the control loop. A similar procedure for the compensation of faulted actuators will also be mentioned.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
- Electrical and Electronic Engineering
Pigatto, L., Baruzzo, M., Bettini, P., Bolzonella, T., Manduchi, G., Marchiori, G., & Villone, F. (2017). Control System Optimization Techniques for Real-Time Applications in Fusion Plasmas: The RFX-mod Experience. IEEE Transactions on Nuclear Science, 64(6), 1420 - 1425. . https://doi.org/10.1109/TNS.2017.2695372