Development of Integrated Magnetic and Kinetic Control-oriented Transport Model for q-profile Response Prediction in EAST Discharges
H. Wang, E. Schuster, T. Rafiq, A. Kritz and S. Ding
Division of Plasma Physics (DPP) Annual Meeting of the American Physical Society (APS)
San Jose, CA, USA, October 31 - November 4, 2016
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Abstract
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Extensive research has been conducted to find high-performance
operating scenarios characterized by high fusion gain, good confinement,
plasma stability and possible steady-state operation. A key plasma
property that is related to both the stability and performance of these
advanced plasma scenarios is the safety factor profile. A key component
of the EAST research program is the exploration of non-inductively
driven steady-state plasmas with the recently upgraded heating and
current drive capabilities that include lower hybrid current drive and
neutral beam injection. Anticipating the need for tight regulation of
the safety factor profile in these plasma scenarios, a
first-principles-driven (FPD)control-oriented model is proposed to
describe the safety factor profile evolution in EAST in response to
the different actuators. The TRANSP simulation code is employed to
tailor the FPD model to the EAST tokamak geometry and to convert it
into a form suitable for control design. The FPD control-oriented
model’s prediction capabilities are demonstrated by comparing
predictions with experimental data from EAST.
