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In this study, an LMI (Linear Matrix Inequality) based H∞ robust controller design approach is proposed to improve the performance of the designed U-pole placement control systems. Unlike the classical design procedures, the control-oriented U-model based nonlinear control systems cancel the nonlinearity of the nonlinear models. Therefore, the closed loop transfer function of U-pole placement control...
This paper presents a novel modelling method for grid-connected DFIG wind turbine and related robust PSS performance study. Linear Matrices Inequality (LMI) based H2/H∞ output feedback controller design approach is applied for power system stabilizers (PSSs) design. Unlike conventional PSS, the robust PSS has better performance and damping ability to different types of generators. Oscillations caused...
A novel Linear Matrices Inequality (LMI) based H2/H∞ output feedback controller for power system with large disturbances in different load conditions is presented in this paper. Unlike normal H-norm based controller design methods, the regional pole constraints are used to enhance the system performance, and two redefined lemmas are applied for the output feedback controller. Oscillations caused by...
In this paper, robust control applications for damping power systems low frequency oscillations (LFOs) are reviewed and compared, to reveal new research directions. With the analysis of LFO through the application of a single-machine infinite-bus (SMIB) model, design methods for Power System Stabilizers (PSSs) can generally be classified into three categories, H∞ control, H2 control, and mixed H∞/H...
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