A New Approach for Finding Real Power Generation Direction to Improve Voltage Stability Margin

Estabragh, Mohsen Rezaie; Mohammadian, Mohsen

doi:10.1007/s13369-013-0730-y

Cited by 3 publications

(4 citation statements)

References 19 publications

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“…This is typically the case in the deregulated environment as the transmission systems are being operated under more stressed condition . This problem has led to the operation of power systems close to their stability margins . In such cases, security is compromised and this results in voltage fluctuations and ultimately system failure .…”

Section: Introductionmentioning

confidence: 99%

“…It is investigated in both static and dynamic states. In the static study, which is considered in this paper, analyses are conducted based on the static model of the network in regard to normal power flow equations because in the point of voltage collapse, the Jacobian matrix of load flow equations becomes singular . Static analysis involves only the solution of algebraic equations and therefore is computationally less extensive than dynamic analysis.…”

Section: Introductionmentioning

confidence: 99%

“…1 This problem has led to the operation of power systems close to their stability margins. 1,2 In such cases, security is compromised and this results in voltage fluctuations and ultimately system failure. 3 Energy safety is a determining factor in power system operation.…”

Section: Introductionmentioning

confidence: 99%

“…In the static study, which is considered in this paper, analyses are conducted based on the static model of the network in regard to normal power flow equations because in the point of voltage collapse, the Jacobian matrix of load flow equations becomes singular. 2 Static analysis involves only the solution of algebraic equations and therefore is computationally less extensive than dynamic analysis. Static voltage stability is suitable for comprehensive studies in which a voltage stability limit for many pre-contingency and post-contingency cases must be determined.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimal location of step-up transformer in radial distribution networks to enhance static voltage stability

Rouholamini

Wang

Mohammadian

et al. 2018

Int Trans Electr Energ Syst

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Summary Electricity consumption has been increasing worldwide, and the growth is still significant, particularly in developing countries. When power consumption increases, the entire system is at a risk of voltage collapse. Power distribution companies have been using step‐up transformers or on‐load tap changing systems to overcome this crucial challenge. These devices are capable of increasing voltage and consequently promoting static voltage stability margin of the network. To use such equipment, it is essential to determine the optimal location and voltage ratio. This paper analytically investigates the presence of a step‐up transformer in a medium‐voltage radial feeder for improving voltage stability. The paper also introduces an easy‐to‐use coordinate rotation that provides a more tangible graphical representation of static stability of power systems. Furthermore, an open‐source software application, developed by the authors, to calculate voltage stability limit of power systems is introduced in this paper that is publicly available.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%