Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS

被引:6
作者
Chand, Annas [1 ]
Khan, Qudrat [2 ]
Alam, Waqar [3 ]
Khan, Laiq [3 ]
Iqbal, Jamshed [4 ]
机构
[1] COMSATS Univ Islamabad, Dept Elect & Comp Engn, Abbottabad Campus, Abbottabad, Pakistan
[2] COMSATS Univ Islamabad, Ctr Adv Studies Telecommun, CAST, Islamabad, Pakistan
[3] COMSATS Univ Islamabad, Dept Elect & Comp Engn, Islamabad, Pakistan
[4] Univ Hull, Fac Sci & Engn, Dept Comp Sci & Technol, Kingston Upon Hull, England
来源
PLOS ONE | 2023年 / 18卷 / 02期
关键词
ENERGY-CONVERSION SYSTEM; ADAPTIVE BACKSTEPPING CONTROL; JOINT ROBOTIC MANIPULATOR; NONLINEAR CONTROL; CONTROL ALGORITHM; WIND TURBINES; RELIABILITY; DIAGNOSIS; FDI;
D O I
10.1371/journal.pone.0281116
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
This work focuses on maximum power extraction via certainty equivalence-based robust sliding mode control protocols for an uncertain Permanent Magnet Synchronous Generator-based Wind Energy Conversion System (PMSG-WECS). The considered system is subjected to both structured and unstructured disturbances, which may occur through the input channel. Initially, the PMSG-WECS system is transformed into a Bronwsky form, i.e., controllable canonical form, which is composed of both internal and visible dynamics. The internal dynamics are proved stable, i.e., the system is in the minimum phase. However, the control of visible dynamics, to track the desired trajectory, is the main concern. To carry out this task, the certainty equivalence-based control strategies, i.e., conventional sliding mode control, terminal sliding mode control and integral sliding mode control are designed. Consequently, a chattering phenomenon is suppressed by the employment of equivalent estimated disturbances, which also enhance the robustness of the proposed control strategies. Eventually, a comprehensive stability analysis of the proposed control techniques is presented. All the theoretical claims are verified via computer simulations, which are performed in MATLAB/Simulink.
引用
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页数:25
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