Adaptive concentric power swing blocker

Jalal Khodaparast; Mojtaba Khederzadeh

doi:10.1186/s41601-016-0026-9

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Adaptive concentric power swing blocker

Contents | 更新时间：2026-06-25

- Adaptive concentric power swing blocker
- Adaptive concentric power swing blocker
- 现代电力系统保护与控制（英文） 2016年1卷第2期
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- DOI：10.1186/s41601-016-0026-9
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- 纸质出版：2016
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Jalal Khodaparast, Mojtaba Khederzadeh. Adaptive concentric power swing blocker[J]. 现代电力系统保护与控制（英文）, 2016,1(2).

Jalal Khodaparast, Mojtaba Khederzadeh. Adaptive concentric power swing blocker[J]. Protection and Control of Modern Power Systems, 2016, 1(2).
Jalal Khodaparast, Mojtaba Khederzadeh. Adaptive concentric power swing blocker[J]. 现代电力系统保护与控制（英文）, 2016,1(2). DOI： 10.1186/s41601-016-0026-9.

Jalal Khodaparast, Mojtaba Khederzadeh. Adaptive concentric power swing blocker[J]. Protection and Control of Modern Power Systems, 2016, 1(2). DOI： 10.1186/s41601-016-0026-9.

摘要

The main purpose of power swing blocking is to distinguish faults from power swings. However

the faults occur during a power swing should be detected and cleared promptly. This paper proposes an adaptive concentric power swing blocker (PSB) to overcome incapability of traditional concentric PSB in detecting symmetrical fault during power swing. Based on proposed method

two pairs of concentric characteristics are anticipated which the first one is placed in a stationary position (outer of zone3) but the position of the second pair is adjustable. In order to find the position of the second pair of characteristic

Static Phasor Estimation Error (SPEE) of current signal is utilized in this paper. The proposed method detects the abrupt change in SPEE and puts the second pair of characteristic in location of impedance trajectory correspondingly. Second concentric characteristic records travelling time of impedance trajectory between outer and inner zones and compares to threshold value to detect symmetrical fault during power swing. If recorded time is lower than threshold

three-phase fault is detected during power swing. Intensive studies have been performed and the merit of the method is demonstrated by some test signals simulations.

Abstract

The main purpose of power swing blocking is to distinguish faults from power swings. However

three-phase fault is detected during power swing. Intensive studies have been performed and the merit of the method is demonstrated by some test signals simulations.

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