Application of Adaptive LQR with Repetitive Control for UPS systems
Publish place: 18th International Power System Conference
Publish Year: 1382
Type: Conference paper
Language: English
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Document National Code:
PSC18_020
Index date: 18 May 2007
Application of Adaptive LQR with Repetitive Control for UPS systems abstract
In this paper an adaptive linear quadratic controller (LQR) with a repetitive controller (RP) for uninterruptible power supplies (UPS) is proposed. The gain of the controller is determined by minimizing a cost function, which reduces the tracking error and smoothes the control signal. A recursive least square (RLS) estimator is used to identify the plant parameters at different load conditions. A RP controller with forgetting coefficients is used for cyclic disturbances attenuation and the final control action is the sum of the LQR and RP controllers. Simulation results show the effectiveness of the proposed controller in producing an output signal with low total harmonic distortion.
Application of Adaptive LQR with Repetitive Control for UPS systems Keywords:
Application of Adaptive LQR with Repetitive Control for UPS systems authors
Karam Shabaani
Young Researchers Center of Azad University
Behzad Moshiri
Young Researchers Center of Azad University
Mahdi Jalili-Kharaajoo
Young Researchers Center of Azad University
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