Optimization of a load shedding scheme

Grewal, G.S.; Konowalec, John W.; Hakim, M.M.

doi:10.1109/2943.692523

Cited by 32 publications

(10 citation statements)

References 1 publication

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“…Load shedding is usually implemented in stages; each is triggered at different frequency level or at specified rate of frequency decline [51][52][53][54].…”

Section: Vulnerability Index Based On Anticipated Loss Of Loadmentioning

confidence: 99%

Application of Evolutionary Technique to Power System Vulnerability Assessment

Lee

El-Sharkawi

2007

Modern Heuristic Optimization Techniques

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“…Load shedding is usually implemented in stages; each is triggered at different frequency level or at specified rate of frequency decline [51][52][53][54].…”

Section: Vulnerability Index Based On Anticipated Loss Of Loadmentioning

confidence: 99%

Application of Evolutionary Technique to Power System Vulnerability Assessment

Lee

El-Sharkawi

2007

Modern Heuristic Optimization Techniques

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“…In the literature, there exist two kinds of load shedding schemes: load shedding based on frequency decline and load shedding based on rate of frequency decline [27] [28]. The first approach [27] has mostly conservative settings because of the lack of information regarding the magnitude of the disturbance.…”

Section: Load Shedding Schemementioning

confidence: 99%

“…This is not beneficial to the quick recovery of the island and may lead to further cascading events. The second approach [28] avoids these shortcomings by utilizing the frequency decline rate as a measure of the load shortage. Thus it has a faster response time compared to the other scheme.…”

Section: Load Shedding Schemementioning

confidence: 99%

Self-healing in power systems: an approach using islanding and rate of frequency decline-based load shedding

You

Vittal

Yang

2003

IEEE Trans. Power Syst.

216

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“…The voltage instability phenomenon arises when a disturbance, increase in load demand, or change in power system operational condition activates an escalating and uncontrollable drop in voltage level [1]. Commonly, most of the methods applying to the voltage stability analysis are based on the static models of the power system to avoid dealing with the corresponding intricate dynamic models [2]- [3]. In essence, the control operations to maintain power system stability can be divided into preventive and corrective actions [4].…”

Section: Introductionmentioning

confidence: 99%

Optimal load shedding to enhance voltage stability and voltage profile based on a multi-objective optimization technique

Dehghan

Darafshian-Maram

Shayanfar

et al. 2011

2011 IEEE Trondheim PowerTech

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This paper presents an optimal load shedding approach to enhance voltage stability employing a combination of the modal analysis and the Differential Evolution Algorithm (DEA). The proposed approach is organized as a multi-objective optimization problem which reveals the best location and the lowest level of load shedding for Special Protection Systems (SPSs) in the direction of improving the voltage stability margin as well as the voltage profile. The proposed approach is employed to the Gharb and Bakhtar areas of the Iranian transmission network for its annual peak load during 2009. Simulation results verify the effectiveness of the proposed scheme in comparison with the current scheme. Index Terms--Differential evolution algorithm, load shedding, modal analysis, multi-objective optimization, voltage stability, voltage profileand QV J are the elements of the Jacobean matrix and represent the sensitivity between the transmitted power and changes in bus voltage. The eigenvalues of the Jacobean matrix ( i V RQThe eigenvalues of the RQV J matrix can be taken into account as a respective criterion of the voltage instability limit. This matrix is shown in (4) as follows [1]-[3]:where, X represents the right eigenvector of the RQV J , Λ represents the diagonal matrix of eigenvalues, and Y represents the left eigenvector of the RQV

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Optimization of a load shedding scheme

Cited by 32 publications

References 1 publication

Application of Evolutionary Technique to Power System Vulnerability Assessment

Application of Evolutionary Technique to Power System Vulnerability Assessment

Self-healing in power systems: an approach using islanding and rate of frequency decline-based load shedding

Optimal load shedding to enhance voltage stability and voltage profile based on a multi-objective optimization technique

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