Nafiseh Zare  Davijani, Gholam Reza  Jahanfarnia, Amir Esmaeili  Abharian, 
    Design of a Trajectory Tracking Sliding Mode Controller Based on Non-Linear
Reduced Order CNPK Model for the Nuclear Research Reactors,
    International Journal of System Signal Control and Engineering Application,
    Volume 9,Issue 5,
    2016,
    Pages 149-156,
    ISSN 1997-5422,
    ijssceapp.2016.149.156,
    (https://makhillpublications.co/view-article.php?doi=ijssceapp.2016.149.156)
    Abstract: The aim of this study is to design a sliding mode controller to follow the reference power trajectory,
overcome the external disturbances and eliminate the chattering phenomenon in nuclear reactors. This controller
is designed based on a Reduced Order Classical Neutron Point Kinetic (ROCNPK) model. This model is
presented based on the measurable variables such as: the reactor power and the coolant temperature. The
stability analysis of the close-loop system is performed using lyapunov method. Also, the chattering
phenomenon in the control law is eliminated by using narrow-band saturation function. The proposed Reduced
Order Sliding Mode Controller (ROSMC) is simulated using matlab/simulink and its performance is evaluated
in different operation conditions. The simulation results illustrate proposed controller follow the reference
power trajectory accurately and is satisfactory in the presence of the external disturbances.
    Keywords: Nuclear reactor;reduced order classic neutron point kinetic;sliding mode;lyapunov stability;external disturbances;Tehran research reactor