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Voltage stability preventive control using a new voltage stability index
2004 International Conference on Power System Technology, 2004. PowerCon 2004., 2005Effective voltage control schemes have been brought to attention in a considerable number of studies, as power system loads are located farther away from power plants and reactive power losses have tended to increase due to the heavier power flow with high load growth and long distance transmission.
T. Esaka +3 more
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A New Line Voltage Stability Index (NLVSI) For Voltage Stability Assessment
2019Power system is probably one of the most complex dynamical systems. In these systems, active and reactive power demand is increasing day by day, other way it can be said that the stress on these systems is increasing. Under these stressed conditions, they are operating at the stability limits to meet their load demand.
Trinadha Burle +2 more
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Introduction to Voltage Stability
2021Voltage stability is a branch of power system stability that has developed late. In general, the research on voltage stability can be divided into three stages. In Stage I from 1940s when the first voltage stability criterion dQ/dU [1] was put forward by Malkovich, a Russian scholar, to the mid-1970s, insufficient attention was been paid to voltage ...
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On Electronic Voltage Stabilizers
Review of Scientific Instruments, 1939Voltage stabilizing circuits employing thermionic tubes can be classified into four groups, according to their derivation from (1) the transconductance bridge, (2) the amplification factor bridge, (3) the simple degenerative amplifier, and (4) combination circuits involving two or more of the foregoing classes or utilizing amplified control voltages ...
F. V. Hunt, R. W. Hickman
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A Review of Voltage Stability Assessment Techniques with an Improved Voltage Stability Indicator
International Journal of Emerging Electric Power Systems, 2015Abstract A blackout can take place in entire power system or a part of the system due to extreme voltage instability (voltage collapse) that can appear abruptly. Instability prediction and continuous monitoring of the power system performance is, therefore, known exigent.
Mir Sayed Shah Danish +2 more
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IET Conference on Renewable Power Generation (RPG 2011), 2011
The use of renewable energy sources is escalating every year. Thus, there is an increase of smaller generating units connected directly to distribution networks close to demand consumption, designing micro-grids. These sources must provide the power quality required to ensure the stability and reliability of the power system.
A.B. Almeida +4 more
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The use of renewable energy sources is escalating every year. Thus, there is an increase of smaller generating units connected directly to distribution networks close to demand consumption, designing micro-grids. These sources must provide the power quality required to ensure the stability and reliability of the power system.
A.B. Almeida +4 more
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pica 2001. Innovative Computing for Power - Electric Energy Meets the Market. 22nd IEEE Power Engineering Society. International Conference on Power Industry Computer Applications (Cat. No.01CH37195), 2002
Although short run reactive power pricing schemes have been discussed and debated in the literature for a decade now, voltage stability, which is often a critical determinant of reactive power allocation in many systems, has rarely been discussed in the dispatch/pricing literature.
D. Chattopadhyay +2 more
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Although short run reactive power pricing schemes have been discussed and debated in the literature for a decade now, voltage stability, which is often a critical determinant of reactive power allocation in many systems, has rarely been discussed in the dispatch/pricing literature.
D. Chattopadhyay +2 more
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1990 IEEE International Conference on Systems, Man, and Cybernetics Conference Proceedings, 2002
The proximity of power systems to voltage collapse can be calculated for any of the buses using to the theory of bifurcation and multiple solutions to power flow behavior, in terms of system indicators such as real and reactive power. These indicators can be measured to identify voltage collapse.
J.A. Momoh, Y. Zhang
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The proximity of power systems to voltage collapse can be calculated for any of the buses using to the theory of bifurcation and multiple solutions to power flow behavior, in terms of system indicators such as real and reactive power. These indicators can be measured to identify voltage collapse.
J.A. Momoh, Y. Zhang
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Voltage stability of microgrids
2019This chapter focuses on voltage stability of microgrids. Some control schemes to maintain voltages of all the buses of a microgrid at acceptable levels in normal conditions and after being subjected to disturbances will be presented. Voltage stability enhancement and reactive power sharing in inverter-based microgrids are discussed, including droop ...
Nasser Hosseinzadeh +5 more
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Stabilization of Load Voltages
2015In the present chapter, the results of Chap. 10 for interpretation of changes or “kinematics” of load regimes are used. Obtained geometrical transformations describe the movement of an operating point along regulation and stabilization trajectories.
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