Application of Phase Shifting Transformers for Daniel-McKnight 500kV Interconnection

Patel, B.; Smith, H. S.; Hewes, T. S.; Marsh, W.

doi:10.1109/tpwrd.1986.4307989

Cited by 12 publications

(3 citation statements)

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“…The calculated loadings can be seen in Table I. 2 The optimum settings are applied to the simulation model in PSS/E and the line loadings are verified. They can also be seen in Table I.…”

Section: B Equal Loadingmentioning

confidence: 97%

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Analytical Approach to Grid Operation With Phase Shifting Transformers

Verboomen

Hertem

Schavemaker

et al. 2008

IEEE Trans. Power Syst.

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Abstract-Analytical expressions are derived to gain insight in the operating principles of phase shifting transformers (PSTs) in a highly meshed grid. To this extent, the dc load flow algorithm is adapted to account for such devices. This leads to a linear expression for the relation between PST settings and the active power flow in the lines. Based on these equations, the total transfer capacity (TTC) can be described mathematically, which allows for optimization. Furthermore, the linear least squares method is used to distribute a cross-border transport evenly over the interconnectors. Both criteria are demonstrated by two examples.Index Terms-dc load flow, load flow control, phase shifting transformer, total transfer capacity.

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“…The calculated loadings can be seen in Table I. 2 The optimum settings are applied to the simulation model in PSS/E and the line loadings are verified. They can also be seen in Table I.…”

Section: B Equal Loadingmentioning

confidence: 97%

“…As phase shifting transformers (PSTs) are a proven technology [1], they are often chosen as power flow controlling devices. Several examples are described in the literature [2]- [6].…”

Section: Introductionmentioning

confidence: 99%

Analytical Approach to Grid Operation With Phase Shifting Transformers

Verboomen

Hertem

Schavemaker

et al. 2008

IEEE Trans. Power Syst.

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“…This characteristic circulation might be wasteful, for instance if XL1 and XL2 are very unique. With the presentation of an extra voltage source, a circulating current can be created, which balances the flows [18]- [20]. It is critical to consider, that as a result of the principally inductive line impedance, embedding a voltage in phase with or opposite to the line voltage (changing the extent of the voltage) will affect the reactive power flow, while a lift voltage with a phase angle opposite to the line voltage (making a phase shift) really impacts the real power flow.…”

Section: Phase Shifting Transformermentioning

confidence: 99%

Phase shifting transformer to reduce power congestions and to redistribute power in interconnected systems

Halasiddappa

Shivakumar²

2023

IJECE

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<span lang="EN-US">The increased penetration of wind and solar power, as well as the liberalized electricity market, makes the power system network interconnected and complex. As the power demand is increasing daily, the complexity of operating large power systems is also increasing. Congestion in the transmission network may become more common than previously, making power flow management a problem that becomes increasingly important. Unexpected power flows (also known as loop flows) are becoming a bigger issue in today's linked power networks. These flows have a detrimental impact on the safe functioning of integrated power networks, which hinders their ability to conduct cross-border trade. Phase shifting transformers (PSTs) allow real power flow to be controlled by changing the phase shift across the device. This study deals with two interconnected parallel power system networks and the power flow controlled through a PST in between. The simulation results emphasize the importance of the PST in facilitating the transfer of energy throughout the regional transmission interconnection.</span>

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