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Showing 1 to 19 of 19 for “"PMU Placement"”.
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Minimal PMU placement for graph observability: a decomposition approach
This thesis explores the PMU placement problem, that is, the placement of a minimal number of Phase Measurement Units (PMUs) on the nodes of a power system graph such that the entire graph is observed. The NP-completeness of PMU placement for planar bipartite graphs is shown. PMU placement …
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A Practical Comprehensive Approach to PMU Placement for Full Observability
In recent years, the placement of phasor measurement units (PMUs) in electric transmission systems has gained much attention. Engineers and mathematicians have developed a variety of algorithms to determine the best locations for PMU installation. But often these placement algorithms are not …
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Optimal Substation Coverage for Phasor Measurement Unit Installations
The PMU has been found to carry great deal of value for applications in the wide area monitoring of power systems. Historically, deployment of these devices has been limited by the prohibitive cost of the device itself. Therefore, the objective of the conventional optimal PMU placement problem is …
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The optimal placement of phasor measurement units and their effects on state estimation
Phasor measurement units (PMUs) are a key new technology for use in electric power systems as a backbone for sensing and measurement and to improve interface and decision support using instantaneous PMU data which will drive faster simulations and advanced visualisation tools that will help system …
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A Method for PMU-Based Reconfigurable Monitoring
… to ensure stability. Phasor Measurement Units (PMUs) provide very good observation of a small area of a network, but their relatively high cost prevents them from being deployed at every point. Therefore, to monitor an entire network, State Estimation is still required. By combining these two …
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State Estimation and Voltage Security Monitoring Using Synchronized Phasor Measurements
The phasor measurement unit (PMU) is considered to be one of the most important measuring devices in the future of power systems. The distinction comes from its unique ability to provide synchronized phasor measurements of voltages and currents from widely dispersed locations in an electric power …
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Power System State Estimation and Renewable Energy Optimization in Smart Grids
… state estimation using phasor measurement units (PMUs), and optimization for renewable energy integration.</p><p>In the first topic, we consider power system state estimation using PMUs, when phase angle mismatch exists in the measurements. In particular, we build a measurement model that takes …
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Advanced System Monitoring with Phasor Measurements
Phasor Measurement Units (PMUs) are widely acknowledged as one of the most promising developments in the field of real-time monitoring of power systems. By aligning the time stamps of voltage and current phasor measurements that are consistent with Coordinated Universal Time (UTC), a coherent …
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Applications of phasor measurements to the real-time monitoring of a power system
… modeling. Adjustments to a previously developed PMU placement algorithm are described which observe generator and tie line flows explicitly and reduces the number of PMUs required for a system, still observing the major dynamic components of a system. This adjusted methodology leaves some buses …
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Novel Integer Optimization Methods and their Applications in Biomass Supply Chain and Power Dominating Set
… problem, unit commitment problem, and sensor placement problem. Phasor Measurement Unit (PMU) placement problem is studied in the following two manners. First, a multistage PMU placement problem is paid attention to due to the high expense of PMUs and budget limitation at each time period. The …
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Wide Area System Islanding Detection, Classification, and State Evaluation Algorithm
… of synchronized phasor measurement units (PMU) has broadened the horizon for system monitoring, control and protection. Its real time feature and reliable measurements has made possible many online system schemes. The recent revolution of computers and electronic devices enables the …
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High-Resolution Time-Synchronized Monitoring and Anomaly Detection in Modern Distribution System
… systems is developed. A novel optimal PMU placement (OPP) scheme is proposed to guarantee complete observability of the system. The linear state estimator further improves its robustness under contingencies by adaptively reformulating its model to account for topology changes. The …
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Line and Generator Outage Identification using Synchrophasor Measurements
… of wide adoption of phasor measurement units (PMUs), synchronized measurements with high temporal resolution provide new opportunities for event detection and identification in electric power systems. This thesis focuses on two types of outages: line and generator outages. For line outages, an …
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PMU-Based Applications for Improved Monitoring and Protection of Power Systems
… and doing data conditioning. The role of PMUs in fulfilling these four objectives forms the basis of this dissertation. Classification and regression tree (CART) built using phasor data has been extensively used in power systems. The splits in CART are based on a single attribute or a …
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Real-time phasor measurements for improved monitoring and control of power system stability
… of the ability of a Phasor Measurement Unit (PMU) placed at a bus to sample at a fast rate the voltage and current phasors of that bus) various schemes for placing PMU's are considered and evaluated. These schemes include coherency based methods and pilot point placement techniques for system …
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State and parameter estimation of power systems using phasor measurement units as bilinear system model
… level. Including of Phasor Measurement Units (PMUs) along with current SCADA (Supervisory Control and Data Acquisition) system is an essential step towards realization of smart grids. PMUs can give synchronized measurements of voltage and current phasors from the grid, however their placement …
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Placing Monitoring Devices in Electric Power Networks Modeled by Block Graphs.
<p>The problem of monitoring an electric power system by placing as few measurement devices in the system as possible is closely related to the well known vertex covering and dominating set problems in graph theory. A set <em>S</em> of vertices is defined to be a power dominating set of a graphs if …
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PMU-Driven Fault Location in Distribution Systems with DERs: Impedance-Based and Multi-Agent System Strategies
… providers. With the increasing deployment of PMUs in distribution networks, this study leverages synchrophasor measurements for fault location, addressing gaps in the existing literature. Conventional fault location methods often rely on centralized architectures, creating a single point of …