TY - JOUR
T1 - SDRE-Based Integral Sliding Mode Control for Wind Energy Conversion Systems
AU - Sarsembayev, Bayandy
AU - Suleimenov, Kanat
AU - Mirzagalikova, Botagoz
AU - Do, Ton Duc
N1 - Funding Information:
This work was supported by the targeted state program BR05236524 ‘‘Innovative Materials and Systems for Energy Conversion and Storage’’ from the Ministry of Education and Science of the Republic of Kazakhstan for 2018-2020.
Publisher Copyright:
© 2013 IEEE.
PY - 2020
Y1 - 2020
N2 - This paper proposes a novel integral sliding mode control (ISMC) scheme based on numerically solving a state-dependent Ricatti equation (SDRE), nonlinear feedback control for wind energy conversion systems (WECSs) with permanent magnet synchronous generators (PMSGs). Unlike the conventional ISMC, the proposed control system is designed with nonlinear near optimal feedback control part to take into account nonlinearities of the WECSs. The Taylor series are used to approximate the solutions of SDRE. More specifically, the nonlinear optimal feedback control has been obtained by solving continuous algebraic Ricatti and Lyapunov equations. Sliding variables are designed such that reaching phase is eliminated and stability is guaranteed. The proposed control method equipped with high-order observer can guarantee more superior results than linear techniques such as linear quadratic regulator (LQR), conventional ISMC, and first-order sliding-mode control (SMC) method. Increasing the number of terms of the Taylor's series of the proposed control law provides better approximation, therefore the performance is improved. However, this increases the computational burden. The effectiveness of the control method is validated via simulations in MATLAB/Simulink under nominal parameters and model uncertainties.
AB - This paper proposes a novel integral sliding mode control (ISMC) scheme based on numerically solving a state-dependent Ricatti equation (SDRE), nonlinear feedback control for wind energy conversion systems (WECSs) with permanent magnet synchronous generators (PMSGs). Unlike the conventional ISMC, the proposed control system is designed with nonlinear near optimal feedback control part to take into account nonlinearities of the WECSs. The Taylor series are used to approximate the solutions of SDRE. More specifically, the nonlinear optimal feedback control has been obtained by solving continuous algebraic Ricatti and Lyapunov equations. Sliding variables are designed such that reaching phase is eliminated and stability is guaranteed. The proposed control method equipped with high-order observer can guarantee more superior results than linear techniques such as linear quadratic regulator (LQR), conventional ISMC, and first-order sliding-mode control (SMC) method. Increasing the number of terms of the Taylor's series of the proposed control law provides better approximation, therefore the performance is improved. However, this increases the computational burden. The effectiveness of the control method is validated via simulations in MATLAB/Simulink under nominal parameters and model uncertainties.
KW - Integral sliding mode control (ISMC)
KW - continuous approximation
KW - generalized high-order disturbance observer (GHODO)
KW - nonlinear output feedback
KW - permanent magnet synchronous generator (PMSG)
KW - state-dependent Ricatti equation (SDRE)
KW - variable-speed wind turbine
KW - wind energy conversion system (WECS)
UR - http://www.scopus.com/inward/record.url?scp=85082385371&partnerID=8YFLogxK
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U2 - 10.1109/ACCESS.2020.2980239
DO - 10.1109/ACCESS.2020.2980239
M3 - Article
AN - SCOPUS:85082385371
SN - 2169-3536
VL - 8
SP - 51100
EP - 51113
JO - IEEE Access
JF - IEEE Access
M1 - 9034041
ER -
