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Showing 1 to 12 of 12 for “"Voltage security"”.
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Voltage Security Optimization for Power Transmission Systems
… for day-ahead reactive power planning to ensure voltage security in transmission networks. The problem is formulated as a voltage-secure multi-period optimal reactive power dispatch (MP-ORPD) problem. The optimization approach searches for optimal set-points of dynamic and static reactive power …
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Computational Framework for Assessing Voltage Security Using Energy Methods
… set of tools for assessing and quantifying the voltage security of a power system in terms of an intuitive measure. This measure, called the maximum loading percentage (MLP), expresses the proximity of a system to serving the maximum amount of load it can furnish without experiencing a voltage …
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State Estimation and Voltage Security Monitoring Using Synchronized Phasor Measurements
… to provide synchronized phasor measurements of voltages and currents from widely dispersed locations in an electric power grid. The commercialization of the global positioning satellite (GPS) with accuracy of timing pulses in the order of 1 microsecond made possible the commercial production of …
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Hoeffding-Tree-Based Learning from Data Streams and Its Application in Online Voltage Security Assessment
… addressed by IEEE and CIGRE Task Force, voltage stability refers to the stability of maintaining the steady voltage magnitudes at all buses in a power system when the system is subjected to a disturbance from a given operating condition (OC). Cascading outage due to voltage collapse is a …
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Nonlinear optimization approach for UPFC power flow control and voltage security: Sufficient system constraints for optimality
… Flow Controller (UPFC) to remove overloads and voltage violations by optimized control of power flows and voltages in the power network. It provides a control strategy for finding the long term control settings of one or more UPFCs by considering all the possible settings and all the (N-1) …
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Preventive assessment and enhancement of power system voltage stability: an integrated approach of thermal and voltage security
… to the preventive assessment and enhancement of voltage stability and security in electric power systems. However, in the course of deriving all the proposed methods we have paid attention to keeping them compatible with the (more traditional) handling of thermal overloads, thereby providing a …
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Management Of Plug-In Electric Vehicles And Renewable Energy Sources In Active Distribution Networks
… as many PEVs as possible in DNs without causing voltage issues, including the violation of voltage security ranges and voltage stability, is studied. To further explore the active management of PEVs in the DNs, we develop a universal demonstration platform, consisting of software packages and …
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A Data Analytics Framework for Regional Voltage Control
… the power systems are operated closer their security limit. When the system is operating under a heavy loading condition, the unstable voltage condition may cause a cascading outage. The voltage fluctuations are presently being further aggravated by the increasing integration of utility-scale …
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Renewable Energy Integrated Power System Stability Assessment with Validated System Model Based on PMU Measurements
… but also its operation characteristics like Low Voltage Ride Through (LVRT). It is thus necessary to take these characteristics into consideration and further to find more adaptive schemes to implement them for more effective analysis and safer power system operation. All the aforementioned is …
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Synchrophasor Sensing and Processing Based Smart Grid Security Assessment for Renewable Energy Integration
… economical approach is proposed for wide-area security assessment. This approach is based on wavelet analysis for detecting and locating the short-term and long-term faults in SG, using voltage signals collected by distributed synchrophasor sensors.</p> <p>A data-driven approach for fault …
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Grid Strength Assessment Trough Q-V Modal Analysis and Maximum Loadability of a Wind-Dominated Power System Using P-Q Regions
… to the grid operators. Keeping the power system voltage stable while considering the strength of the transmission grid is among the major challenges facing by the transmission system operators. Amid normal operation and fault conditions, wind farms should help the grid in reactive power supply …