Voltage instability: phenomena, countermeasures, and analysis methods

Cutsem, Thierry Van

doi:10.1109/5.823999

Cited by 286 publications

(175 citation statements)

References 90 publications

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“…Normally, it is assumed that losses decrease when generation takes place closer to the load site. According to [8], researchers concluded that solar power injection reduces the transmission losses but Figure 12 shows that locating distributed generators will be minimizing power losses at bus [5][6][7] and maximizing power losses at bus [1][2][3][4]. By comparing the power loss at bus 3, 4 there are slightly increase on power loss for each transmission line.…”

Section: Short Circuit Investigationmentioning

confidence: 99%

“…These values are given in the network of Figure 3. Admittance and impedance matrices can be easily obtained, as in (1), (2), (3), (4).…”

Section: Power Grid Modelmentioning

confidence: 99%

“…This voltage dropping at transient during fault leads to system disruption, which may be due to the maximum load power transfer from generation stations to load buses. Contingency analysis was presented in [4] and shows the post-contingency load flow and modified load flows in time domain. The contingency analysis and post-contingency analysis were used for long-term voltage stability; the credible contingencies are outages of transmission and generation facilities; in which a system must be able to withstand any single transmission or generation outage.…”

Section: Introductionmentioning

confidence: 99%

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Power Analysis for a Limited Bus Grid System with Distribution Generators

Barsoum¹

2017

Global J Technol Optim

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It has been recognized recently that when injecting renewable energy source power to a load buses which connected to some distributed feeders in a power grid system, a stability problem occurs particularly when having high fault duties that exceeding the circuit breaker ratings at some substations. In this paper an analysis of power flow, short circuit, stability and protection are given in detail to an example of limited 7-bus power grid system. Comparison are illustrated between power grid with and without distributed generators regarding bus voltages, fault currents, critical power angles, selected current transformers and over current relay settings in each bus. It discusses the selection of optimum slack bus in Gauss Seidel method, and shows that the system with distributed generators is more stable although the fault currents are higher than the system without distributed generators.

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Section: Short Circuit Investigationmentioning

confidence: 99%

“…These values are given in the network of Figure 3. Admittance and impedance matrices can be easily obtained, as in (1), (2), (3), (4).…”

Section: Power Grid Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Power Analysis for a Limited Bus Grid System with Distribution Generators

Barsoum¹

2017

Global J Technol Optim

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“…Voltage instability is undeniably one of the most inconstant and costly failures, for instance, the 14 August 2003 blackout in North America cost between US $4 billion and $6 billion [5]. Basic material on voltage stability philosophical concepts may be found in the recent surveys [6]- [7]. The interested reader may also consult [8]- [9] for general definitions and basic problems.…”

Section: Introductionmentioning

confidence: 99%

Voltage Collapse Avoidance in Power Systems: A Receding Horizon Approach

Attia¹,

Alamir²,

Wit³

2006

Intelligent Automation & Soft Computing

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ABSTRACT-In this paper, a receding horizon control approach is developed for voltage stabilization in power systems. The primary focus is on a benchmark system proposed in the context of a European project. The system is termed hybrid due to the finite set of control inputs, state automata description of the voltage primary controller and their interactions with the load nonlinear continuous dynamics. Moreover, the network topology imposes hard constraints on the states. All these make the control problem quite challenging. For different realistic scenarios, the proposed control algorithm is shown to stabilize the bus voltages at acceptable levels. The computational demand fits the real time allowed slot, making the scheme attractive for large scale applications as an area central controller.

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“…The main factor causing voltage instability is the inability of the power system to meet the demand for reactive power [2]- [4]. Excessive voltage decline can occur following some severe system contingencies and this situation could be aggravated, possibly leading to voltage collapse, by further tripping of more transmission facilities, var sources or generating units due to overloading.…”

Section: Introductionmentioning

confidence: 99%

Real Power Loss and Voltage Stability Limit Optimization Incorporating TCSC and SVC through DE Algorithm under Different Operating Conditions of a Power System

Jebaraj¹

2012

IOSRJEEE

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Voltage instability: phenomena, countermeasures, and analysis methods

Cited by 286 publications

References 90 publications

Power Analysis for a Limited Bus Grid System with Distribution Generators

Power Analysis for a Limited Bus Grid System with Distribution Generators

Voltage Collapse Avoidance in Power Systems: A Receding Horizon Approach

Real Power Loss and Voltage Stability Limit Optimization Incorporating TCSC and SVC through DE Algorithm under Different Operating Conditions of a Power System

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