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Understanding and solving short-term voltage stability problems
IEEE Power Engineering Society Summer Meeting,, 2003Based on actual incidents, short-term voltage instability is an increasing, but often overlooked, industry concern. A common scenario is a large disturbance such as a multi-phase fault near a load center that decelerate motor loads. Following fault clearing with transmission outages, motors raw very high current while simultaneously attempting to ...
J.A. Diaz de Leon, C.W. Taylor
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The Modeling Requirements for Short-Term Voltage Stability Studies
2006 IEEE PES Power Systems Conference and Exposition, 2006Transmission planners are now very familiar with PV and VQ analysis. In fact, transfer limitations and new transmission facilities are now based on the problems found with this analysis. While these two forms of analysis are valuable, another form of analysis should also be performed to insure that critical problems are found.
J.a. De Leon, Bud Kehrli
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Investigation of short-term voltage stability problems and countermeasures
IEEE PES Power Systems Conference and Exposition, 2004., 2005This paper discusses a few aspects of short-term voltage instability: modeling of transient overexcitation limiters in synchronous generators; possible outcomes of instability, such as induction motor stalling, induction generator overspeed, generator loss of synchronism leading to a local blackout; eigenvalue tracking and use of eigenvector to ...
C.D. Vournas, E.G. Potamianakis
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Load Dynamic Impact on Short-Term Voltage Stability
2019 FISE-IEEE/CIGRE Conference - Living the energy Transition (FISE/CIGRE), 2019Dynamic load, especially induction motors (IM), represents one of the most critical factors on power system vulnerability to short-term voltage stability (STVS) problems. This paper shows dynamic load modeling impact as IMs on the analysis, identification and improvement of STVS problems in failure events.
Estefania A. Tapia +2 more
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A Discrete System Approach for Short-term Voltage Stability Analysis
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019A key task in stability analysis is to solve a group of differential - algebraic equations. In this paper, a closed-form solution of the network equations is derived based on the familiar Dommel-Sato iteration. For different load models, we derive the corresponding closed-form network voltage expressions.
Zhuoran Kang +7 more
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Induction Machine Short-term Voltage Stability and Protection Measures
2006 IEEE PES Power Systems Conference and Exposition, 2006This paper presents preliminary results on protection measures aiming at minimizing the impact of short-term voltage instability in a part of a power system with large wind power penetration in the form of wind farms equipped with simple induction generators. It is seen that strict protection settings on the induction machines most prone to instability
Costas Vournas, Emmanuel Potamianakis
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Short-Term Voltage Stability Improvement via Dynamic Voltage Support Capability of ESS Devices
IEEE Systems Journal, 2019Modern power systems are undergoing a steady increase in the loading level and higher penetration of renewables. Induction motor (IM) loads and fixed-speed induction generator (FSIG) based wind turbines (WTs) are broadly used in many power systems.
Ahvand Jalali, Mohammad Aldeen
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Dynamic VAR planning for rotor-angle and short-term voltage stability enhancement
2017 IEEE International Conference on Industrial Technology (ICIT), 2017In the short-term timescale, separation between load-driven and generator-driven stability problems is rarely well-defined. Allocation of VSC-based VAR compensation, such as STATCOM, has the ability to boost system voltages in the fault-on condition, thus reducing generator power swing, in addition to circumventing delayed voltage recovery upon fault ...
Ahmad M. Tahboub +2 more
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Expanding an Industrial Load Model for Short-Term Voltage Stability Analysis
International Journal of Emerging Electric Power Systems, 2007The present work proposes an extended model representing part of a huge aluminum industry load for short-term voltage stability investigations in time domain. The efforts were concentrated in the expansion of the industrial power distribution system model including explicit representation of the main transformers, capacitors, feeders and induction ...
Jose Eduardo Onoda Pessanha +3 more
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Short-Term Voltage Stability Assessment Based on Local Autopattern Discovery
2019 IEEE Sustainable Power and Energy Conference (iSPEC), 2019With the rapid development of wide-area measurement system, online dynamic stability assessment using machine learning methods becomes promising. However, most of the existing methods only extract features from single snapshot of time series, without considering correlations within/between multiple variables.
Yonghong Luo, Chao Lu, Lipeng Zhu
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