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Power System Analysis
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In this paper, the authors present a model for estimating the Impedance of Transmission Lines and the Capacitance of Transformer Lines in the presence of Symmetrical Faults.Abstract:
1 Basic Concepts 2 Transformers 3 The Synchronous Machine 4 Series Impedance of Transmission Lines 5 Capacitance of Transmission Lines 6 Current and Voltage Relations on a Transmission Line 7 The Admittance Model and Network Calculations 8 The Impedance Model and Network Calculations 9 Power Flow Solutions 10 Symmetrical Faults 11 Symmetrical Components and Sequence Networks 12 Unsymmetrical Faults 13 Economic Operation of Power Systems 14 Zbus Methods in Contingency Analysis 15 State Estimation of Power Systems 16 Power System Stabilityread more
Citations
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Journal ArticleDOI
Renewable energy sources and frequency regulation: survey and new perspectives
TL;DR: In this article, an overview of the key issues and new challenges on frequency regulation concerning the integration of renewable energy units into the power systems is presented, followed by a brief survey on the existing challenges and recent developments, the impact of power fluctuation produced by variable renewable sources (such as wind and solar units) on system frequency performance is also presented.
Journal ArticleDOI
On the Existence and Linear Approximation of the Power Flow Solution in Power Distribution Networks
TL;DR: In this article, the authors consider the problem of deriving an explicit approximate solution of the nonlinear power equations that describe a balanced power distribution network and propose an approximation that is linear in the active and reactive power demands of the PQ buses.
Proceedings ArticleDOI
Usefulness of DC power flow for active power flow analysis with flow controlling devices
TL;DR: The paper answers the question of how low the X/R ratio of line parameters can be, and what is the maximal deviation from the perfect flat voltage which still allows DC power flow to be acceptably accurate.
Journal ArticleDOI
Detecting False Data Injection Attacks on Power Grid by Sparse Optimization
TL;DR: A novel false data detection mechanism is proposed based on the separation of nominal power grid states and anomalies, and two methods, the nuclear norm minimization and low rank matrix factorization, are presented to solve this problem.
Proceedings ArticleDOI
Usefulness of DC power flow for active power flow analysis
TL;DR: In this article, the authors analyze the assumptions of DC power flow, and make an attempt at quantifying these using indexes, and answer the question of how low the X/R ratio of line parameters can be, and what is the maximal deviation from the perfect flat voltage which still allows DC Power Flow to be acceptably accurate.