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Showing 1 to 17 of 17 for “"synchrophasors"”.
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An Iterative Technique for Instrument Transformer Calibration and Line Parameter Estimation with Synchrophasor Measurements
… parameter estimation have been examined. With synchrophasors offering real-time data for analysis, a solution to each individual problem seems feasible. A quandary however arises due to the fact that calibration methods depend on accurate knowledge of line parameters, and estimation of these …
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Phasor Measurement Units Applications Prioritization Based on Wide-Area Disturbance Events
… grants. There are different applications that synchrophasors can provide, including off-line and real-time applications. However, due to budget constraints, technology development and characteristics specific to each system, not all applications are equally suitable and essential for all …
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Development and deployment of a residential voltage level phasor measurement unit
… data which is up to what the IEEE standard for synchrophasors dictates. By building a one-phase, open source, distribution level PMU, the inner workings and complications of synchrophasor generation can be understood. Many studies have been performed in the area of PMUs, but this thesis focuses …
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Hoeffding-Tree-Based Learning from Data Streams and Its Application in Online Voltage Security Assessment
… assessment with high-speed data streams from synchrophasors and phasor data concentrators (PDCs). Periodically updated decision trees (DTs) have been applied in different subjects of security assessments in power systems. However, with a training data set of operating conditions that grows …
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Response-Based Synchrophasor Controls for Power Systems
… well as innovative remedial controls utilizing synchrophasors. It integrates existing tools, controls, and infrastructure with new technology to propose applications and schemes that can be implemented for any utility. This work presents solutions to problems relevant to the industry today, …
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Development and implementation of an open-box distribution-level phasor measurement unit
… of these devices is a mystery; although produced synchrophasors are all the same, as dictated by standards, the way these are calculated is undefined and varies depending on the PMU’s manufacturer. The chapters of this thesis explore the steps, challenges, and reasoning involved in the development …
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High-Resolution Time-Synchronized Monitoring and Anomaly Detection in Modern Distribution System
… harmonic real power derived from the harmonic synchrophasors estimated by the algorithm in Chapter 2. This approach offers a more cost-efficient alternative to direct GIC measurements. Finally, in Chapter 5, a detection and localization scheme for incipient faults is developed based on singular …
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Completely Recursive Least Squares and Its Applications
… estimation (JSPE) in power system monitored by synchrophasors is adopted, where the original nonlinear parameter problem is reformulated as two loosely-coupled linear subproblems: state tracking and parameter tracking. Chapter 5 deals with the state tracking which determines the voltages in …
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On-line Calibration of Instrument Transformers Using Synchrophasor Measurements
… Innovative and efficient algorithms that used synchrophasors came to be written. To make these algorithms robust, it became necessary to remove errors that crept into the power system with time and usage. Thus the process of calibration became essential when practical decisions started being …
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Fiber-Wireless Sensor Networks for Monitoring Distributed Generation in a Smart Grid Environment
Smart grid applications like teleprotection, synchrophasors and remote condition monitoring and control of assets require timely and reliable data transmission from the widely distributed assets to the Data Control Centers (DCCs). Many communication architectures and solutions have been proposed to …
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State estimation in electrical distribution systems
… conventional measurements and new generation synchrophasors provided by Phasor Measurement Units. Particular attention has been paid to the measurement model to be used within the DSSE algorithm, since its implementation an strongly a e t the a ura y a hiev- able in the estimation results. …
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Synchrophasor Based Centralized Remote Synchroscope for Power System Restoration
The process of Synchronization between two buses in a power system plays a vital role, especially during blackstart or bulk power system restoration period. The synchronization process is primarily monitored in the presence of experienced personnel at the substation level, which might not control …
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Discovering Power System Dynamics through Time-Frequency Representation of Ambient Data
With the proliferation of renewable energy and its integration into the modern power grid, we face some new issues. Aside from the increased switching rate, which results in faster dynamic behavior, realistic models for these Inverter-Based Resources (IBRs) are not widely available. This …
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PMU-Driven Fault Location in Distribution Systems with DERs: Impedance-Based and Multi-Agent System Strategies
… system to a multi-source network. For obtaining synchrophasors for the algorithm, a 3 phase PMU model is developed in PSCAD. Since the aim is to use the existing PMUs in the network, for the scope of this study, optimum PMU placement for DS monitoring purpose is considered. Towards that, a study …
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Voltage Stability Analysis Using Simulated Synchrophasor Measurements
<p>An increase in demand for electric power has forced utility transmission systems to continuously operate under stressed conditions, which are close to instability limits. Operating power systems under such conditions along with inadequate reactive power reserves initiates a sequence of voltage …
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Advanced modeling and computational methods for distribution system state estimation
Growing penetration of distributed energy resources and smart grid technologies interfacing with the power distribution network motivate the continued advancement of accurate and robust system monitoring tools. Traditional state estimation approaches rely on iterative methods to solve the weighted …