Simulation of the commutation failure when faults occur in AC side of the HVDC system

Yu, Hua Dong; Wu, Zhiyuan; Li, Guodong; Min, Kangmin

doi:10.1109/itnec.2017.8285060

Cited by 2 publications

(2 citation statements)

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“…However, all these efforts mentioned above focus on the DC‐side system, and other researchers have done many works on the AC‐side . To guarantee the success of commutation, a stable commutating voltage is critical, which is provided by the receiving system.…”

Section: Introductionmentioning

confidence: 99%

“…However, all these efforts mentioned above focus on the DC-side system, and other researchers have done many works on the AC-side. [10][11][12][13][14] To guarantee the success of commutation, a stable commutating voltage is critical, which is provided by the receiving system. One most common index that can reflect the steady voltage supporting capability of receiving system is short circuit ratio based on Thévenin equivalent.…”

Section: Introductionmentioning

confidence: 99%

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Analyses of static and dynamic reactive power allocation between synchronous compensators and shunt capacitors to counter commutation failures

Zhou

Song

et al. 2018

Int Trans Electr Energ Syst

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Summary In traditional high‐voltage direct current systems, alternating current system faults can lead to commutation failures, which may further induce the blocking of converters. After the faults are cleared, the fast recovery of commutating voltage, as one key factor to avoid converter blocks, is closely related to dynamic voltage support. The dynamic voltage behaviour considering the reactive power characteristic of converters is analysed, where the polynomial approximation is applied to facilitate our studies. Focusing on the synchronous compensator, the transient voltage support ability is analysed, and then the steady state output of synchronous compensators is regarded as a parameter to take parametric analysis. Case studies show that the steady state VAR output of synchronous compensators has influence on the countering of commutation failures, and an optimal allocation can be found by analysing the results in the form of polynomials.

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Section: Introductionmentioning

confidence: 99%