Determination of maximum load margin using fuzzy logic

Mallick, Sourav; Acharjee, Parimal; Ghoshal, Sakti Prasad; Thakur, Sneha

doi:10.1016/j.ijepes.2013.03.033

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…To analyze voltage collapse and to know the load margin, the MLM is determined [10][11][12][13][14]. In this regard, the PV curve using Newton-Raphson Load Flow (NRLF) and continuation load flow (CLF) are commonly used [15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Non-Iterative, Unique, and Logical Formula-Based Technique to Determine Maximum Load Multiplier and Practical Load Multiplier for Both Transmission and Distribution Systems

et al. 2023

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In recent days, due to the increasing number of electric vehicle charging stations (EVCSs) and additional power consumption by domestic, commercial, and industrial consumers, the overall power system performance suffers, which further degrades voltage profile, reduces stability, increases losses, and may also create a voltage collapse problem. Therefore, it is crucial to predetermine a maximum loadability limit for voltage collapse analysis and a practical allowable extra load for safe and secure operation, keeping the bus voltage within the security limits. To mitigate the problems, unique and innovative formulae such as the maximum load multiplier (MLM) and practical load multiplier (PLM) have been developed to consider line resistance. The determination of actual permissible extra load for a bus enables quick assessment of bus-wise suitable capacities and the number of EVs that can be charged simultaneously in the charging station. The planning engineers can easily settle on the extra load demand by domestic, commercial, and industrial consumers, while maintaining the voltage security constraint. The proposed technique is simple, non-iterative, computationally inexpensive, and applicable to both transmission and distribution systems. The proposed work is tested on a 57-bus transmission system and 69-bus radial distribution system, and the obtained results from the developed formulae are verified by comparing with conventional iterative methods.

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Section: Introductionmentioning

confidence: 99%

Non-Iterative, Unique, and Logical Formula-Based Technique to Determine Maximum Load Multiplier and Practical Load Multiplier for Both Transmission and Distribution Systems

et al. 2023

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“…The maximum active power that could be transferred between regions of the same area through the internal transmission lines, or between areas across the tie-lines, without any problems related to the voltage stability, should be assessed maintaining the correct interchange values among the areas [12][13][14][15]. Nevertheless, in [12] the maximum power interchange is calculated by the sum of active power flowing over all the tie lines, at the maximum loading point.…”

Section: Introductionmentioning

confidence: 99%

Continuation power flow considering area net interchange constraint

Carhullanqui¹,

Neto²,

Alves³

2015

International Journal of Electrical Power & Energy Systems

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Interconnected power systems not only allow to the areas to provide mutual assistance, but also import or export energy with respect to optimize energy resources assessment where, a cost reduction involved in the generation of power required to meet its demand. To determine the required control actions, in the planning and operation stages, it is important to verify the loading margins for both the normal operation and the different conditions of contingencies that may eventually occur. In this paper a continuation power flow that allows obtaining the loading margin and maximum active power transfer considering the area interchange control is proposed. From the results of the IEEE systems (9 and 118 buses), a difference of up to twelve percent in the active power transfer capacity is verified compared to the cases without area interchange control. The method also highlights the effects of the loop flow which occur as a consequence of the existence of parallel paths in the interconnected network.

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