نتایج جستجو برای: scale power system

تعداد نتایج: 3019247  

2011
R. Ramirez-Betancour C. R. Fuerte-Esquivel T. Van Cutsem Nicolás de Hidalgo

This paper proposes a two-time scale simulation approach of both short-term and long-term dynamics in power systems. The short-term transient period is analyzed by a full-time scale simulation while a quasi-steady state model of the power system is used to simulate long-term dynamics. The proposed method is inspired of Singular Perturbation theory to model the interaction between the short-term...

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2023

Load shedding is an operating condition in which the electrical grid temporarily disconnected from load. The objective to minimize gap between available generation capacity and load demand while maintaining equitable supply for all consumers. a prominent problem many developing countries. To address this issue, paper explores potential of hybrid energy system (HES) provide uninterrupted power a...

H. A Shayanfar, M. Esmaili, N. Amjady,

Congestion management in electricity markets is traditionally done using deterministic values of power system parameters considering a fixed network configuration. In this paper, a stochastic programming framework is proposed for congestion management considering the power system uncertainties. The uncertainty sources that are modeled in the proposed stochastic framework consist of contingencie...

M. Dehghani, M. Karrari, S.K.Y. Nikravesh,

This paper suggests a method for designing PSS to damp multi-machine power system oscillations.  The method is based on robust control theory. First, the conventional method for designing robust controller in LMI framework is illustrated. Then, the suggested method is given, in which, a PID output feedback controller is tuned using the LMI approach. Mostly, the classical methods are used t...

Journal: :modeling and simulation in electrical and electronics engineering 2015
majid hosseina seyed mohammad taghi bathaee alireza fereidunian

this paper discusses the control of flexible microgrids, consisting of a redox flow batteries (rfb) and a new power conditioning system (pcs) for the rfb. considering the importance of energy storage, this study is essential in power systems that are developed cautiously. rfb is connected to power system by a dc/dc or dc/ac converter to produce a dc voltage. it is very important that this conve...

One of the main problems in wind energy conversion system (WECS) is how to achieve maxim‌u‌m output power in different wind speeds. Maximum methods for maximum power point tracking in wind energy conversion syst‌e‌ms require the knowledge of system characteristics and mechanic sensors. So, using these methods practically will follow with high price and an abundant difficulties. In this pape...

2003
Joseph Cohen

The intermittency of wind resources may appear as an important handicap for integrating large-scale wind power in existing grids. However, in Canada and the United States, studies show that coordination between interconnected power systems can be economically beneficial for both the wind power and electric utility industries if some power system management and market rules are applied. In order...

Combined heat and power production technology has energy efficiency and environmental advantages over other forms of energy supply. Solving combined heat and power economic dispatch problem considering all system demand and operational constraints determines optimal utilization of power and heat sources. In micro grids, dual dependency of combined heat and power production makes economic dispat...

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