Results 201 to 210 of about 8,828,173 (247)

A method for stability analysis of small‐signal microwave amplifiers

International Journal of RF and Microwave Computer‐Aided Engineering, 1998
This paper presents a method for analyzing the stability of small-signal microwave amplifiers with any topology. This analysis is performed using the Nyquist criterion and allows detection of the so-called odd-mode instabilities. The method is easily applicable by using commercially available microwave CAD. © 1998 John Wiley & Sons, Inc.
PISA, Stefano, M. ZOLESI
openaire   +2 more sources

A review on the small signal stability of microgrid

2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), 2016
Small signal stability is the key issue in the operation and control of a microgrid. For the small signal stability of an inverter-based microgrid, existing analysis methods mainly contain eigenvalue analysis using state-space models, impedance analysis based on impedance models and other nonlinear analysis methods.
null Shuya Wang, null Jianhui Su, null Xiangzhen Yang, null Yan Du, null Yong Tu, null Huadian Xu   +5 more
openaire   +1 more source

Small signal stability

2015
Analysing the power system with a goal of determining its stability is based on models of system components encompassing adequate assumptions to formulate an appropriate mathematical model in the time scale that properly describes the phenomenon under study.
openaire   +1 more source

Neural network assessment of small signal stability

1994 Proceedings of Canadian Conference on Electrical and Computer Engineering, 1994
Neural network (NN) techniques have been recently applied to several power system problems. So far the most common types of neural networks used in the power field have been the layered perceptron, trained with a backpropagation algorithm (supervised learning), and Kohonen's self-organizing feature maps (unsupervised learning).
null de Lima, null Alden
openaire   +1 more source

Flexible tool for small signal stability analysis

2014 IEEE PES General Meeting | Conference & Exposition, 2014
This paper presents the development of a flexible tool for the calculation of the state matrix A of the power system. This program is called SIAM (Sistema Informatico para Analisis Modal — Computational System for Modal Analysis). The state matrix is obtained from the load flow solution data and from the dynamic model parameters employed.
C. E. Biteznik, J. L. Aguero, M. C. Beroqui   +2 more
openaire   +1 more source

Small-Signal Stability Analysis

1997
Ever since Hendrik Bode of Bell Laboratories conceived and scribbled down the concept of the feedback amplifier on a page of the New York Times while going to work in the mid-1930s, applications of feedback contol theory and techniques have been found in almost every conceivable field of study.
openaire   +1 more source

Evaluation of small signal stability of a power system

Australian Journal of Electrical and Electronics Engineering, 2008
In reality, a power system is never in steady-state, as there are persistent fluctuations in load levels with associated adjustments in generation. The growing complexity of power systems, as well as the system exposition to various contingencies, have exacerbated the system's steady-state condition.
Y C Choo, K M Muttaqi, M Negnevitsky
openaire   +1 more source

Generator modeling in the context of small-signal stability

2016 IEEE Power and Energy Society General Meeting (PESGM), 2016
Modal analysis is the well-established method for investigating small-signal stability. Dominant states of a particular oscillatory or monotonous mode can be identified by linearizing the system's differential equations. Since generator oscillation is predominantly influenced by the speed deviation and the rotor angle, whereas other state variables ...
Sarina Kreplin, Sebastian Höhn, Anatoli Semerow, Matthias Luther   +3 more
openaire   +1 more source

Small-signal stability monitoring using PMU

2014 IEEE International Energy Conference (ENERGYCON), 2014
The paper presents results of the research devoted to PMU-based power system small-signal stability monitoring. Proposed method allows tracking in-phase groups of generators and critical generators in the groups by analyzing low-frequency oscillations. Further developed, method is able to identify proximity to power system stability boundary.
Pavel Chusovitin, Andrey Pazderin
openaire   +1 more source

Effect of PV and FACTS on Small Signal Stability

2018 20th National Power Systems Conference (NPSC), 2018
Renewable Energy sources like Photovoltaic (PV) systems are available in present grids. Under small signal disturbances, the presence of PV affects the stability. In this paper both PV and various Flexible AC Transmission system (FACTS) devices has been added in a standard two area systems for stability studies.
Adhishree Srivastava, Ritu Meena, S.K. Parida   +2 more
openaire   +1 more source