نتایج جستجو برای: decentralized frequency restoration

تعداد نتایج: 551303  

2015
M. Abedi G. B. Gharehpetian S. Shokoohi

Decentralized control strategies are popular candidates in microgrids control because of their reliability and performance. Conventionally, droop control (as a main decentralized strategy) is been utilized in order to prevent permanent droop of voltage and frequency after change in loads and also to share generated power between distributed generation units. In this paper, a new droop control s...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1998

Journal: :Journal of physics 2023

Abstract High integration of PV diminishes system inertia, which jeopardizes the frequency stability. Adjusting PVs’ output according to demand is an active power control method requiring no energy storage devices, realizes grid support by a certain reserved PV. To equally reserve between different PVs without communication, this paper combines operation characteristics module on right side max...

Park design in Iran has followed the traditional European style since the Qajar dynasty. Thefamiliarity of Iranians with the spirit of Persian gardens and the low quality of the newest parks is such that usersprefer ancient geometrical Persian gardens. Today, those responsible for the design of urban green spaces lackingexamples differing from the traditional and thus they are in need of an ade...

2015
H. Douzi M. El Hajji R. Harba F. Ros C. Y. Lin S. F. Chang J. Ouyang G. Coatrieux B. Chen J. S. Tsai W. B. Huang Y. H. Kuo M. J. Lee K. S. Kim T. W. Oh H. Y. Lee

The print-scan operation is still challenging in the watermarking community, some watermarking techniques were proposed in the literature to deal with this operation. These watermarking techniques are still very sensitive to degradations produced by the print-scan process. This paper investigates a watermarking technique in the Fourier domain that is robust to degradation produced when an image...

Journal: :Automatica 1998
José Calazans de Castro Clivaldo Silva de Araújo

A frequency domain technique for analysis of oscillations in decentralized control systems is proposed. Controllability and observability of an oscillatory mode are evaluated by using computer graphics. Coupling functions are used in the modal analysis of decentralized control. Remote signals are analyzed for possible applications where a critical oscillation mode is controllable in a station b...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی صنعتی کرمان - پژوهشکده برق و کامپیوتر 1390

a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...

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