Simulation Research on Multi-Infeed HVDC Commutation  Failure in East China Power Grid

doi:10.3969/j.issn.1000-7229.2014.12.013

Abstract

Abstract: On the basis of the summer maximum operational mode of East China Power Grid in 2013， the research model of AC/DC transmission system was built in electromagnetic transient program through dynamic equivalence， and the model of multi-infeed HVDC transmission system was constructed with using the concrete of the control and protection model of practical project. For the first time， a variety of techniques of Nanrui， Xuji and ABB for the concrete model of DC control and protection were effectively combined. According to the 1-phase or 3-phases faults occurred in the East China AC Power Grid， where six circuits were placed， including the Ge-Nan， Lin-Feng， Yi-Hua， Fu-Feng， Jin-Su and Long-Zheng DC systems， the commutation failures of DC systems and the dynamic performance of AC/DC system were studied， the statistical results of the duration of commutation failure and the DC recovery time were presented， and the exchange of reactive power between inverter station and AC system was studied during the failure and recovery period. The results show that even if HVDC commutation failures occurred in six circuits at the same time， the AC/DC system in the East China Power Grid can return to normal. Finally， the area where the 1-phase or 3-phases faults of the AC system possibly trigger the simultaneous commutation failures of DC systems to six circuits in East China Power Grid was given.

Key words: dynamic equivalence, electromagnetic transient simulation, multi-infeed HVDC, model of HVDC control and protection, commutation failure

LI Xinnian， LI Tao， LIU Yao， WANG Jingfang， PANG Guangheng， CHEN Shuyong， LEI Xiao， YANG Peng. Simulation Research on Multi-Infeed HVDC Commutation Failure in East China Power Grid[J]. ELECTRIC POWER CONSTRUCTION, 2014, 35(12): 77-83.

References

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Simulation Research on Multi-Infeed HVDC Commutation Failure in East China Power Grid

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