Coupling model of AC filter branch in SF<sub>6</sub> circuit breaker during the break process

Zaixing PENG (彭在兴); Kai LIU (刘凯); Yanwei NAN (南岩玮); Song WANG (王颂); Fei YANG (杨飞); Hao SUN (孙昊); Yuan LA (喇元)

doi:10.1088/2058-6272/abb4c1

Plasma Science and Technology > 2020 > 22(12): 125402. > DOI: 10.1088/2058-6272/abb4c1

Zaixing PENG (彭在兴), Kai LIU (刘凯), Yanwei NAN (南岩玮), Song WANG (王颂), Fei YANG (杨飞), Hao SUN (孙昊), Yuan LA (喇元). Coupling model of AC filter branch in SF₆ circuit breaker during the break process[J]. Plasma Science and Technology, 2020, 22(12): 125402. DOI: 10.1088/2058-6272/abb4c1

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Coupling model of AC filter branch in SF₆ circuit breaker during the break process

¹ Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, People's Republic of China
² State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an 710049, People's Republic of China
³ China Southern Power Grid, Guangzhou 510080, People's Republic of China

Funds: This work was supported by the Major Science and Tech- nology Project of China Southern Power Grid Co., Ltd (ZBKJXM20170065): Research on Harmonic Resonance Mechanism, Suppression Measures and Impact on Main Equipment of AC/DC Hybrid Power Grid.

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Received Date: June 21, 2020
Revised Date: August 31, 2020
Accepted Date: September 01, 2020

Graphical Abstract

Abstract

Abstract

In this paper, a coupling model of the AC filter branch circuit with the arc plasma in the circuit breaker was built to investigate the arcing process considering the harmonic current. The comparisons among the current at power frequency (50 Hz), power frequency combining the 11th harmonic and power frequency combining the 24th harmonic show that the high-order harmonic current would lead to higher decreasing rate of current before current-zero period. In addition, the influence of arc on the amplitude of high-order harmonic current is not negligible. Thus, the coupling of arc with AC filter branch circuit is quite necessary in the numerical modeling of the circuit breaker in the AC filter branch at the high voltage direct current converter station.
- AC filter branch,
- arc characteristics,
- SF₆circuit breaker

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References (13)

References

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