A new approach to the assessment of steady-state voltage stability margins using the P–Q–V curve

Lee, Ching-Yin; Tsai, S.-J.S.; Wu, Yuan‐Kang

doi:10.1016/j.ijepes.2010.06.005

Cited by 59 publications

(36 citation statements)

References 25 publications

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“…A method for ranking contingencies based on information from the base case and post-contingency operating states using Voltage Stability Margin (VSM) was proposed [23]. A new index based on P_Q_V curve of a specified bus, area, or overall system has been proposed to provide useful information about the ranking of voltage weak nodes, classification of areas susceptible to voltage stability and also extended to contingency analysis and load shedding schemes [24]. The NSGA II and MNSGA II algorithm is proposed for network contingency to obtain the optimal values of the control variable by considering L-index [25].…”

Section: Contingency Rankingmentioning

confidence: 99%

A Novel Line Stability Index for Voltage Stability Analysis and Contingency Ranking in Power System Using Fuzzy Based Load Flow

Kanimozhi¹,

Selvi²

2013

Journal of Electrical Engineering and Technology

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-In electric power system, the line stability indices adopted in most of the instances laid stress on variation of reactive power than real power variation of the transmission line. In this paper, a proposal is made with the formulation of a New Voltage Stability Index (NVSI) which originates from the equation of a two bus network, neglecting the resistance of transmission line, resulting in appreciable variations in both real and reactive loading. The efficacy of the index and fuzzy based load flow are validated with IEEE 30 bus and Tamil Nadu Electricity Board (TNEB) 69 bus system, a practical system in India. The results could prove that the identification of weak bus and critical line in both systems is effectively done. The weak area of the practical system and the contingency ranking with overloading either line or generator outages are found by conducting contingency analysis using NVSI.

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Section: Contingency Rankingmentioning

confidence: 99%

A Novel Line Stability Index for Voltage Stability Analysis and Contingency Ranking in Power System Using Fuzzy Based Load Flow

Kanimozhi¹,

Selvi²

2013

Journal of Electrical Engineering and Technology

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“…A framework analyzed QV-constraint exchange points in the maximum loadability of view of limits of capability of the generating units has been developed in [9]. A new approach to the assessment of steady-state VSMs using the P-Q-V curve has been proposed by Ching-Yin Lee et .al [10]. P-V curve approach based on the CPF is a well-used method [11,12].…”

Section: Introductionmentioning

confidence: 99%

Cuckoo search algorithm for integration wind power generation to meet load demand growth

Makhloufi

Koussa

Pillai

2017

2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Syst

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Abstract-This article presents a new efficient method for optimal placement and sizing of wind power generators (WPG) in power networks with an objective of coping maximum loadability margin and minimizing reactive power loss. A new total voltage stability based on continuation power flow (CPF) theorem is used to model the problem. The method also highlights the effects of random characteristics of wind resources on loadability margin. Cuckoo search algorithm is applied to find the optimum placement and sizing of WPG since it presents several advantages of few control parameters, high solution quality and fast computational time. The experiment results of IEEE 9-bus show that the optimum location and size of WPGs are different from those considering power system loss and voltage deviation in objective function of the optimization process. A significant effect of the random characteristic of wind resource during load demand growth is revealed. The simulation results show that the CSA can be an efficient and promising method for optimal placement and sizing of WPG in power networks problem.

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“…The control methods based on sensitivity analysis are simple and fast to be applied [5][6][7]. The main principle of these methods is the linearizing technique and the power control range is limited, which is not suitable for emergency situations.…”

Section: Introductionmentioning

confidence: 99%

“…Once dangerous emergencies occur, operators can mitigate system congestion, enhance stability and avoid voltage collapse by controlling the powers on some critical interfaces in power system [3,4]. Thus, it is important to develop an effective method to control the power flows on this kind of interface.The control methods based on sensitivity analysis are simple and fast to be applied [5][6][7]. The main principle of these methods is the linearizing technique and the power control range is limited, which is not suitable for emergency situations.…”

mentioning

confidence: 99%

A directional control method for interface flow considering static voltage stability

Jia

Zeng

et al. 2015

International Journal of Electrical Power & Energy Systems

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A new approach to the assessment of steady-state voltage stability margins using the P–Q–V curve

Cited by 59 publications

References 25 publications

A Novel Line Stability Index for Voltage Stability Analysis and Contingency Ranking in Power System Using Fuzzy Based Load Flow

A Novel Line Stability Index for Voltage Stability Analysis and Contingency Ranking in Power System Using Fuzzy Based Load Flow

Cuckoo search algorithm for integration wind power generation to meet load demand growth

A directional control method for interface flow considering static voltage stability

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