Power System Optimization and Stability

Flexibility in power systems is ability to provide supply-demand balance, maintain continuity in unexpected situations, and cope with uncertainty on supply-demand sides. The new method and management requirements to provide flexibility have emerged from the trend towards power systems increasing renewable energy penet…

• BÜLENT ORAL
• SEÇİL VARBAK NEŞE

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• MEHMET HAKAN HOCAOĞLU

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• TUBA GÖZEL

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• UĞUR GÜVENÇ

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• SERHAT DUMAN

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• UĞUR GÜVENÇ

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• YUSUF SÖNMEZ

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• MÜSLÜM CENGİZ TAPLAMACIOĞLU

This paper proposes three strong second order cone programming (SOCP) relaxations for the AC optimal power flow (OPF) problem. These three relaxations are incomparable to each other and two of them are incomparable to the standard SDP relaxation of OPF. Extensive computational experiments show that these relaxations h…

• BURAK KOCUK

The requirements of an islanding, or 'loss of grid', protection for a dispersed storage and generation unit are examined, and the principal methods used for this type of relaying are outlined. A new protection algorithm is introduced which is based on the rate of change of power as measured at the generator's terminal…

• ÖMER USTA

Generation of electricity using wind power has received considerable attention worldwide in recent years. In order to investigate the impacts of the integration of wind farm into utilities' network, various windmill models have been developed. One such impact is related to the critical clearing time (CCT) of the wind…

Over the past decades, electric power systems (EPSs) have undergone an evolution from an ordinary bulk structure to intelligent flexible systems by way of advanced electronics and control technologies. Moreover, EPS has become a more complex, unstable and nonlinear structure with the integration of distributed energy…

• FATMA YAPRAKDAL