Dynamic Control and Performance of a Sen Transformer for Stabilizing an AC Transmission System and Improved Voltage Profile

Patel, Dhrupa; Chowdury, Anadita

doi:10.1109/icpects.2018.8521640

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…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]. The electromagnetic power flow controller, based on multi winding transformers, is typically represented by the Phase-Shifting Transformer (PST) [17] and the Sen Transformer (ST) [18,19] proposed on the basis of the UPFC. The latter has a simple structure, high reliability, and good economy.…”

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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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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“…The issue of controlling the active and reactive powers of transformer phases is known in the literature. In [1], real and reactive power flows are independently controlled by injecting a compensating voltage in series with the transmission line from the transformer. Injection of the compensating voltage is realized through a "Sen Transformer" by controlling its voltage and phase angle.…”

Section: Introductionmentioning

confidence: 99%

Control of the Transformer Phase Powers Using a Single-Phase Voltage Source

Drabek

Dybowski

2021

Energies

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Power flow in three-phase distribution grids containing single-phase prosumer voltage sources strongly depends on the RMS value of the voltage of these sources and their phase shifts in relation to the grid voltage. The ideal way to control single-phase prosumer sources should guarantee no return active power to the MV grid through a distribution transformer and no additional reactive power flows in the LV grid. This means that the active power of the one-phase voltage source is consumed by other single-phase customers (in the same phase or in other phases) and the reactive power of this source is equal to zero. The paper presents the results of the investigations of the dynamic control system of a single-phase voltage source that allows meeting these conditions. On the basis of steady-state calculations, the static characteristics of the above-mentioned control, needed to determine of the proper working point of a prosumer source were also obtained. The control process involves the control of the RMS value and phase angle of the voltage source against the phase voltage of the LV grid, to which the source is connected, with simultaneous control of the current phase angle issued by the power source against voltage. The result of the research is the confirmation of the necessity of using a zig–zag connection of the secondary side of distribution transformers. The developed control system of the prosumer voltage source does not fully control the active power of individual phases of the distribution transformer. The paper shows that the power losses in a distribution transformer strongly depend not only on the active power of the prosumer source, but also on its effective voltage and phase in relation to the transformer voltage.

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Enhanced operation of ‘Sen’ transformer with improved operating point density/area for power flow control

Behera¹,

2019

IET Generation, Transmission & Distribution

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Dynamic Control and Performance of a Sen Transformer for Stabilizing an AC Transmission System and Improved Voltage Profile

Cited by 6 publications

References 6 publications

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

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

Control of the Transformer Phase Powers Using a Single-Phase Voltage Source

Enhanced operation of ‘Sen’ transformer with improved operating point density/area for power flow control

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