Journal ArticleDOI
Improving voltage security assessment and ranking vulnerable buses with consideration of power system limits
Nima Amjady,Masoud Esmaili +1 more
TLDR
The techniques proposed in this paper are able to evaluate voltage stability status efficiently in both pre-contingency and post- Contingency states with considering the effect of active and reactive power limits.About:
This article is published in International Journal of Electrical Power & Energy Systems.The article was published on 2003-11-01. It has received 36 citations till now. The article focuses on the topics: Electric power system & AC power.read more
Citations
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Journal ArticleDOI
Transient Stability Prediction by a Hybrid Intelligent System
Nima Amjady,S.F. Majedi +1 more
TL;DR: The proposed hybrid intelligent system is composed of a preprocessor, an array of neural networks (NN) and an interpreter, which combines the responses of the NNs in a voting procedure to determine the transient stability status of the power system.
Journal ArticleDOI
Application of a new sensitivity analysis framework for voltage contingency ranking
Nima Amjady,Masoud Esmaili +1 more
TL;DR: In this article, a new sensitivity analysis framework for voltage contingency ranking has been presented, which is a combination of linear sensitivities and eigenvalue analysis, which can determine the voltage stability status of the power system due to the occurrence of each contingency and also stability margin or instability depth of the post-contingency state is determined in the framework.
Journal ArticleDOI
Locating series FACTS devices for multi-objective congestion management improving voltage and transient stability
TL;DR: A multi-objective framework is proposed for congestion management where three competing objective functions including total operating cost, voltage and transient stability margins are simultaneously optimized, which leads to an economical and robust operating point where enough levels of Voltage and transient security are included.
Journal ArticleDOI
Wavelet based feature extraction of voltage profile for online voltage stability assessment using RBF neural network
TL;DR: A new approach for estimating voltage stability margin VSM, based on application of wavelet feature extraction method to network voltage profile, which has been implemented in New England 39-bus test system with promising results demonstrating its effectiveness and applicability.
Journal ArticleDOI
Congestion management considering voltage security of power systems
TL;DR: In this article, a congestion management method based on the voltage stability margin sensitivities is introduced, which makes the system more secure after congestion management than other methods already presented for this purpose but also its cost of providing security is lower than the earlier methods.
References
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Journal ArticleDOI
The continuation power flow: a tool for steady state voltage stability analysis
TL;DR: In this paper, the authors present a method of finding a continuum of power flow solutions starting at some base load and leading to the steady-state voltage stability limit (critical point) of the system.
Journal ArticleDOI
Fast Decoupled Load Flow
TL;DR: This paper describes a simple, very reliable and extremely fast load-flow solution method that is attractive for accurate or approximate off-and on-line routine and contingency calculations for networks of any size, and can be implemented efficiently on computers with restrictive core-store capacities.
Book
Energy function analysis for power system stability
TL;DR: In this article, the authors present an energy function for a single-machine 39 bus system, which is based on the Tsolas-Araposthasis-Varaiya model.
Book
Power system voltage stability
TL;DR: In this article, a clear, in-depth explanation of voltage stability, covering both transient and longer-term phenomena and presenting proven solutions to instability problems, is presented, along with planning and operating guidelines, computer methods for power flow and dynamic simulation, and descriptions of actual voltage instability incidents.
Book
Voltage Stability of Electric Power Systems
TL;DR: In this paper, the authors present a model for voltage security assessment based on loadability, sensitivity, and Bifurcation analysis, and present a set of criteria and methods for Voltage Security Assessment.