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This paper presents an autonomous operation of a micro-grid by employing a droop control and PQ control strategy. The local distributed generation (DG) is modeled by a grid-tied inverter with LCL filter. A proportional-resonant controller is adopted to control the inverter. A new control scheme based on a combination of weak droop control and PQ control is proposed in this paper. Droop control aims...
In this paper we consider the problem of the pose variance in face recognition. In practice, the face images we get usually have different poses; however the number of training sample is limited, so the sparse representation based classification (SRC) for face recognition cannot work well. For the purpose of expending the sample size, a 3D face modal based image synthesis method is adopted. Experiments...
This paper presents a design and optimization method to harness wind energy using PMSG, diode rectifier, boost DC/DC converter and grid-connected VSI DC/AC inverter with LCL filter. A systematic procedure has been adopted to design the system to extract maximum power for a given wind speed. The design methodology has been verified by Simulink based platform. The system operates up to its design target,...
In this paper differential evolution algorithm has been adopted to identify a suitable set of values of L-C-L filter used in a grid-tied voltage source inverter to meet total harmonic distortion (THD) requirement. A single-phase circuit model with virtual equivalent impedance of inverter output power was used to analyze total harmonic distortion. This paper also adopted a combination of partial direct-pole-placement...
The power engineering curriculum in the School of Electrical Engineering and Telecommunications at the University of New South Wales (UNSW) has undergone several major improvements since 2009. They include the revision of course content, the introduction of new courses, the appointment of new staff and enhanced integration of laboratory practice with taught courses. Curricula have been updated to...
Graph theory has attracted great attention for the problem of image segmentation in recent years. In this paper we deduce the unified form of the normalized cut (Ncut) algorithm and the Isoperimetric algorithm, and then a new Isoperimetric-based thresholding algorithm is proposed. Unlike Tao and Jin's Ncut-based thresholding algorithm, the proposed algorithm need not to search all possible thresholds,...
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