An Intelligent Distance Relay Sensing Methodology Immune to Power Swing and Load Encroachment

Arumuga, Mariselvam; Reddy, M. Jaya Bharata

doi:10.1109/jsen.2022.3223905

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…After the faulty branch is removed, the APEV can be obtained by adding APCV to the active power of the line before the faulty branch is removed, as shown in Equation (8).…”

Section: Methods Of Calculationmentioning

confidence: 99%

“…The authors of reference [7] use the fault chain theory to simulate the process of successive line outages that occur step by step and lead to LE. The authors of reference [8] propose an intelligent distance relay sensing methodology for the differentiation of LE from fault conditions by analyzing the apparent impedance behavior during a fault and LE. However, the method requires high investment and running costs, can be analyzed to a limited extent, and is difficult to apply in the field.…”

Section: Introductionmentioning

confidence: 99%

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A Wide-Area Measurement System-Based Load Encroachment Identification Method Applicable to Power Systems with High Wind Power Penetration

et al. 2023

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One of the main factors in triggering cascading outages is the unexpected tripping of backup protection caused by load encroachment (LE). Hence, LE should be identified quickly to avoid unexpected tripping. This paper proposes a fast LE identification method based on the wide-area measurement system (WAMS), applicable to transmission grids with high wind power penetration. Firstly, based on the improved shortest path algorithm, the method searches for critical lines greatly affected by the LE to determine the collected range of wide-area information. Then, by analyzing the hidden dangers of the existing calculation method for the active power estimation value (APEV) in the power system with wind farms, a fast calculation method of the APEV based on the WAMS is proposed to ensure that the existing LE identification criterion is still applicable in the high-penetration system of wind power. Finally, based on the PSASP platform, the wind farm model is integrated into the IEEE 39-bus New England system for simulation. The simulation results show that the method proposed in this paper can quickly search for the critical line set (CLS) and accurately identify the LE under high wind power penetration, effectively avoiding the unexpected tripping of backup protection and preventing cascading outages.

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“…After the faulty branch is removed, the APEV can be obtained by adding APCV to the active power of the line before the faulty branch is removed, as shown in Equation (8).…”

Section: Methods Of Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%