Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mohammadreza Farrokhifard"'
Profit-Based DG Planning Considering Environmental and Operational Issues: A Multiobjective Approach
Autor:
Mahmoud-Reza Haghifam, Hashem Oraee, Amir Ameli, Ehsan Davari-nejad, Mohammadreza Farrokhifard
Publikováno v:
IEEE Systems Journal. 11:1959-1970
In this paper, a methodology is presented to find the optimal size, location and technology of distributed generation (DG) units considering economic, technical, and environmental issues simultaneously. This technique can be implemented to both renew
Publikováno v:
2019 North American Power Symposium (NAPS).
This paper proposes a novel approach for modal damping estimation from system oscillatory responses. It is well-known that the signal frequency can be estimated accurately by using time-frequency distributions. Accordingly, a dual function is defined
Autor:
Patrick Panciatici, Vaithianathan Venkatasubramanian, Florent Xavier, Mohammadreza Hatami, Mohammadreza Farrokhifard, Gilles Torresan
Publikováno v:
2019 North American Power Symposium (NAPS).
Measurement-based power system modal analysis is useful to operators in that alarms can be issued when the damping of some natural oscillatory modes becomes unacceptably low or when forced oscillations suddenly appear in a power system. Considering t
Publikováno v:
2019 International Conference on Smart Grid Synchronized Measurements and Analytics (SGSMA).
This paper evaluates the performance of data-and covariance- based Stochastic Subspace Identification (SSI) methods for simultaneous estimation of forced oscillations and system modes. Recent events in North American power grid point to resonant inte
Publikováno v:
IEEE Transactions on Power Systems. 31:1567-1578
This paper focuses on the use of quadratic time-frequency distributions (QTFDs) to characterize the temporal variation of low-frequency electromechanical oscillations (LFEOs) using ringdown data. A refined Margenau-Hill distribution (MHD) and a proce
Publikováno v:
Electric Power Systems Research. 124:74-84
One of the most important issues in modal estimation of power systems using PMUs data is the negative effect of outliers. Hence, in addition to the techniques of analyzing PMUs data, the necessity of implementing some kinds of approach to overcome th
Publikováno v:
International Transactions on Electrical Energy Systems. 25:216-232
Summary In recent years, Distributed Generation (DG) has been utilized in electric power networks increasingly. DG units can affect the system operational conditions in different ways such as voltage profile improvement, amending voltage stability, r
Publikováno v:
2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC).
Small signal stability of power systems is one of the most crucially important issues, since the electrical demand is increasing at a galloping rate and power systems are expanding day by day. In this regard, estimation of dampings and frequencies of
Autor:
Amir Ameli, Alireza Shahsavari, Heidar Ali Shayanfar, Mohammadreza Farrokhifard, Amir Ahmadifar
Publikováno v:
2013 13th International Conference on Environment and Electrical Engineering (EEEIC).
In recent decades, moving towards extensive applications of renewable energy sources instead of traditional fossil ones, distributed generations or DGs have become proper choices to employ in power grids. Although application of these types of suppli
Publikováno v:
2013 12th International Conference on Environment and Electrical Engineering.
One of the most important characteristics of power systems as dynamic plants is maintaining their stability when subjected to disturbances. Power System Stabilizers (PSSs) are the most used devices to damp Low Frequency Oscillations (LFO) and enhance