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The design of current controller of voltage source converter connected to the grid through an LCL filter becomes more and more challenging because of the LCL filter resonance behaviour and the uncertainty of the grid impedance value which may lead to instability problems. In this context, a robust active damping control for LCL filtered grid connected inverter under grid inductance variation is proposed...
This paper aims to develop a new scheme for the classification of power-quality disturbances (PQDs). We propose to employ two discriminative dictionaries, designed based on the structures of PQDs, to respectively decompose a disturbance signal. Matching pursuit optimized by particle swarm optimization (PSO-MP) is used as the decomposition method. Reconstruction errors after sparse coding are employed...
According to the nonlinear closed electrohydraulic proportional system, a multiple sliding mode adaptive control method is proposed. Recursive technique is used to simplify the control problem of higher order system. A robust adaptation scheme was used to reduce the tracking error resulted from system uncertainties. Firstly, the recursive technique and state feedback precise linearization scheme is...
The study of a fuzzy logic controlled, three-phase shunt active power filter to improve power quality by compensating harmonics and reactive power is presented. The advantage of fuzzy controller with self-adjustable factor proposed in this paper is that it is based on a linguistic description and does not require a mathematical model of the system. Furthermore the fuzzy control rules can be modified...
The study of a fuzzy logic controlled, three-phase shunt active power filter to improve power quality by compensating harmonics and reactive power is presented. The advantage of fuzzy controller with self-adjustable factor proposed in this paper is that it is based on a linguistic description and does not require a mathematical model of the system. Furthermore the fuzzy control rules can be modified...
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