Direct Current Analysis of LCC based HVDC System during Fault using DIgSILENT PowerFactory

Hiremath, Ravikiran; Moger, Tukaram

doi:10.1109/upec50034.2021.9548167

Cited by 2 publications

(1 citation statement)

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“…When the voltage of the sending side LCC-connected AC system drops too much due to a fault, the power transmission will be interrupted. Hiremath and Moger [9] proposed a maximum modulation ratio-based strategy for the hybrid LCC-VSC system.…”

Section: Introductionmentioning

confidence: 99%

Coordinated DC voltage control strategy for the receiving end hybrid LCC-VSC system

Zhou,

Luo,

et al. 2024

J. Phys.: Conf. Ser.

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The receiving end hybrid line commutated converter (LCC) — voltage source converter (VSC) system has the obstacle that when an AC fault occurs at the sending LCC side, the DC voltage of the rectifier side will fall, resulting in the power transmission reduction of the whole system. Particularly, when the rectifier side DC voltage falls below the inverter side DC voltage, the power transmission is interrupted, posing a huge threat to the stability of the power grid at both the sending and receiving ends. To tackle these problems, a coordinated DC voltage control strategy for the receiving end is proposed. By controlling the DC voltage of the receiving VSC, the proposed method can improve the DC system power transmission capability when voltage drops at the sending side. The proposed control strategy is simple but practical, which is good for the stable and secure operation of both the sending and the receiving power system.

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Section: Introductionmentioning

confidence: 99%