A Load Flow Analysis of the Southern African Power Pool Interconnections using High Voltage AC, High Voltage DC, and Flexible AC Transmission System

Ndlela, Nomihla Wandile; Davidson, Innocent E.

doi:10.1109/powerafrica53997.2022.9905074

Cited by 2 publications

(1 citation statement)

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“…Flexible AC transmission technology (FACTS) can flexibly regulate the power flow of transmission lines. FACTS power flow controllers are mainly divided into power electronic and electromagnetic types [11,12]. Power electronic power flow controllers based on power electronic devices are typically represented by the Unified Power Flow Controller (UPFC), which has comprehensive functions but high equipment manufacturing and maintenance costs [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Power Flow Regulation Effect and Parameter Design Method of Phase-Shifting Transformer

Jin,

Liu,

Zhang

et al. 2024

Energies

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In the context of carbon peaking and carbon neutrality goals, the integration of a large number of renewable energy sources may trigger significant tidal changes, leading to transmission congestion, wind and light abandonment, power oscillation, voltage and frequency fluctuations, etc. A phase-shifting transformer is a cost-effective and reliable power flow control equipment, but its key parameters lack systematic design methods. Based on the equivalent model of phase-shifting transformers, detailed design principles and methods have been proposed, and the configuration method of winding turns has been improved to facilitate calculation and control strategy formulation. The regulation effect of the phase-shifting transformer designed through simulation of power flow regulation in a typical 500 kV network is simulated. By adjusting the phase-shifting transformer, the power flow of heavy load lines can be transferred to light load lines, optimizing the power flow distribution and improving the transmission capacity of the cross-section.

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