Development of Multifunctional Adaptive Resonance Neutral Grounding Device

Ryzhkova, Y. N.; Mladzievskii, E.P.; Tsyruk, Sergey

doi:10.1109/icieam.2019.8742956

2019 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM) 2019

DOI: 10.1109/icieam.2019.8742956

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Development of Multifunctional Adaptive Resonance Neutral Grounding Device

Y. N. Ryzhkova

E.P. Mladzievskii

Sergey Tsyruk

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2020

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“…Several measures have been presented to achieve dynamic adjustment of the parameters of the passive ASC for accurate arc-suppression current. An adaptive arc-suppression coil with the use of capacitor and resistor units connected in parallel has been presented in [16] to reduce the active and reactive currents in the zerosequence circuit, yet it still cannot get the stepless adjustment of compensation current.…”

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confidence: 99%

Two-Phase Current Injection Method for Single Line-to-Ground Fault Arc-Suppression With Revised STATCOM

Chen

Zhou

et al. 2020

IEEE Access

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To suppress the arc current in the single line-to-ground (SLG) fault in neutral isolated distribution network, a two-phase current injection method is proposed for the revised static synchronous compensator (STATCOM), as an extra function during the SLG fault. Therefore, the traditional roles of the dedicated passive coil or power electronic based arc-suppression devices can be taken by this multipurpose STATCOM. This paper first introduces the principles and the models of the arc-suppression current injection during SLG fault. Then, different options of arc-suppression current injection by the revised STATCOM are analyzed in terms of stabilizing the floating dc capacitor voltages of the cascaded H-bridges (CHB) converter. It is discovered that the two-phase current injection is the only viable option to maintain the floating dc capacitors voltages. Then, the arc-suppression current controller and the dc capacitors voltages controller are proposed, and the design process of the control parameters adapting to the varying transitional (grounding) resistances computed online are also introduced. The proposed methods are first validated by simulations. Then, an MVA-rating CHB converter prototype is constructed, and 10kV feeder SLG fault and arc-suppression experiments are performed to demonstrate the effectiveness of the proposed method. INDEX TERMS Single line-to-ground fault, arc suppression, cascaded H-bridge (CHB) converter, floating dc capacitor voltage control. NOMENCLATURE

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confidence: 99%

Two-Phase Current Injection Method for Single Line-to-Ground Fault Arc-Suppression With Revised STATCOM

Chen

Zhou

et al. 2020

IEEE Access

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Development of Multifunctional Adaptive Resonance Neutral Grounding Device

Cited by 1 publication

References 2 publications

Two-Phase Current Injection Method for Single Line-to-Ground Fault Arc-Suppression With Revised STATCOM

Two-Phase Current Injection Method for Single Line-to-Ground Fault Arc-Suppression With Revised STATCOM

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