Voltage stability index for online voltage stability assessment

Maharjan, Rabindra; Kamalasadan, Sukumar

doi:10.1109/naps.2015.7335245

Cited by 13 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The simulated result validates VCPI_1 dominance and variation as plotted in Figure 5b on the secondary axis. Moreover, this work put efforts to study with CLNA in multiple real and reactive load changes at the different load bus, compare with other VSIs which is a novel contribution of this work not discussed in the studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][21][22][23]. 4.3.3 System with CLNA in maximum real and reactive load change and SLG fault at different line Figure 5c represents the variation of VSIs magnitude for a different line.…”

Section: System With Clnamentioning

confidence: 99%

See 1 more Smart Citation

A Research on Selection of Appropriate Stability Index under Adverse System Conditions for the Assessment of Voltage Stability of an IEEE 14 Bus Power System

Kushwaha¹,

Bhattacharjee²

2020

EJEE

View full text Add to dashboard Cite

For voltage stability assessment at a given operating point, various types of voltage stability indices (VSIs) have been proposed in the literature. In this paper, the voltage stability assessment of an IEEE-14 bus system is done for performance comparison of different types of VSIs available, under certain critical and practical stressed operating conditions (SOCs). The performance comparison of various VSIs under the considered SOCs is not reported in the literature. Such SOCs include the combinational occurrence of – variation in inductive loading, single line to ground (SLG) fault and effect of one generation unit tripped. These SOCs are the prime cause of voltage collapse of any node/line. The results show the performance of various VSIs with respect to line number, contingency ranking of the line, power margin, effects of loading and SLG fault. These VSIs are also instrumental in critical line and node analysis (CLNA) which is useful in the choice of proper location for reactive power compensation required. The simulated results provide the best performing VSI for accurate prediction of voltage instability under any considered SOC. This information is essential for voltage stability assessment of a particular line under multiple causes of voltage collapse.

show abstract

Section: System With Clnamentioning

confidence: 99%

“…A VSI based on maximum loading capability of the bus combined with Thevenin equivalent method which requires PMU data is further discussed in Maharjan and Kamalasadan [12]. Thevenin equivalent method requires PMU data which is large so computational time is more.…”

Section: Introductionmentioning

confidence: 99%

A Research on Selection of Appropriate Stability Index under Adverse System Conditions for the Assessment of Voltage Stability of an IEEE 14 Bus Power System

Kushwaha¹,

Bhattacharjee²

2020

EJEE

View full text Add to dashboard Cite

show abstract

“…Most often performed with an external control. The duration of the stroke is determined by the duration of the external control pulse of a rectangular shape [9]. If necessary, you can create generators running in sync mode or the oscillatory modex [10].…”

Section: The Calculation Diagram Of the Sawtooth Generatormentioning

confidence: 99%

Calculation of pulse voltage stabilizer

Cheremukhin

2020

E3S Web Conf.

View full text Add to dashboard Cite

This scientific article is devoted to one of the priority issues in electronics, namely the implementation of the engineering task of designing a power source. In my case, according to the terms of reference, which includes: the main parameters of the network, efficiency, a structural electrical circuit of a switching power supply was developed. In the process, the main functional units (blocks) were calculated and the choice of radio components from which they were built on the basis of: current values, reverse voltage, gain, operating frequency and other parameters of diodes, transistors, integrated circuits, Zener diodes, operational amplifiers was justified. In the “Methods” section, calculations will be made for the device blocks: a network rectifier, a push-pull transformer converter, a pre-amplifier circuit with a transformer input, an error signal comparison and amplification circuit, a sawtooth voltage generator, and a secondary power source. The information presented in the text is recommended to a narrow circle of specialists, priority in the field of power electronics, as well as in the field of communication systems.

show abstract

“…Modern power systems are more vulnerable to instabilities as a result of operational proximity with their loadability limits [1–3]. Factors such as heavy loading conditions, uncertainties from renewable generation, load recovery dynamics, and different types of contingencies like line tripping or generator outages have made the secure operation of a grid challenging task [4–6]. In both planning and operational stages, network security is associated with voltage stability, which relates to the ability of the power system to maintain steady‐voltage levels at all buses after being subjected to a disturbance [7–9].…”

Section: Introductionmentioning

confidence: 99%