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

Behera, Tikuna; De, Dipankar

doi:10.1049/iet-gtd.2018.6051

Cited by 9 publications

(2 citation statements)

References 24 publications

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“…The same control effects can be achieved on the base of direct (one-stage energy conversion), which allows to accomplish much more reliable and less expensive devices. One of such technologies is a booster transformer of various configurations and destinations, well known as ST. [11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Modes of the Booster Transformer Withregulation in Zigzag

Postoronca¹,

Dmitrii²,

Tirsu³

et al. 2022

JES

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The development of power engineering assumes the increasing flexibility of power networks through the use of various kinds of FACTS, controlled by means of power electronics and being elements of the Smart Grid. These kinds of devices can be attributed to controllers such as UPFS and „Sen” Transformer (ST), which provide regulation of voltage and power flows in networks. Due to the relevance of this topic, technical solutions are proposed that perform similar functions, which implies the need for a comparative analysis of such developments in order to optimize energy characteristics of the equipment. The scope of the paper is to develop and study a regulating transformer which belongs to the „Sen” family, but possessing the extended range and higher control accuracy. Carrying out research, mode parameters of the device were treated, as well as typical power was determined.

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Section: Introductionmentioning

confidence: 99%

Modes of the Booster Transformer Withregulation in Zigzag

Postoronca¹,

Dmitrii²,

Tirsu³

et al. 2022

JES

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show abstract

“…As a consequence, some novel topologies of the ST were proposed in [7,[12][13][14][15], which combine the advantages of large capacity and high reliability of the ST, and the flexible adjustment of UPFC for improving the ability of power flow control, such as the improved hybrid unified power flow controller (IHUPFC), the power transistor-assisted "Sen" transformer (TAST), and the hybrid electromagnetic unified power flow controller (HEUPFC). Besides, a new variant of ST with the reverse-phase adjustment of tap changer was proposed, which may improve the control range and the accuracy of voltage regulation by increasing the number of operating points for the tap-changers of secondary windings [16][17].…”

Section: Introductionmentioning

confidence: 99%

A Duality Based Quasi-Steady-State Model of Three-Phase Five-Limb Sen Transformer

Zhou

Han

et al. 2021

IEEE Access

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A three-phase five-limb transformer is a potential application form of the Sen Transformer (ST), especially for the scenarios with significantly unbalanced load conditions. This paper proposes a quasi-steady-state model of three-phase five-limb ST (TPFLST) based on duality. Firstly, an equivalent circuit model that takes into account the eddy current effect and the coupling effect involving the magnetic circuit can be derived according to the equivalent magnetic circuit of the TPFLST. The iron-core of the TPFLST may be represented by the parallel combination of the resistances reflecting the power loss of the iron-core and the saturable inductances considering the ferromagnetic hysteresis in virtue of the principle of duality. Subsequently, an electric circuit model of the voltage and current of each winding for the TPFLST is able to be accomplished on the basis of the electrical connection between the TPFLST and the external systems in accordance with Kirchhoff's voltage and current law. Consequently, a quasi-steady-state model of the TPFLST which considers the coupling relationship involving the magnetic and electric circuits can be formed by combining the equivalent circuit model and the electric circuit model. With the help of MATLAB, the effectiveness of the proposed model may be verified by comparing the results about power flow control including power, voltage, and current with the ones from the existing literature. Furthermore, the TPFLST is found to be better-suited for the unbalanced load condition according to a comparison among the unbalanced degrees of output currents for the STs with different core structures under unbalanced load conditions.

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Implementation of Sen transformer in distribution network for line loss reduction with improved voltage profile

Patel

Chowdhury

2023

Electr Eng

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

Cited by 9 publications

References 24 publications

Modes of the Booster Transformer Withregulation in Zigzag

Modes of the Booster Transformer Withregulation in Zigzag

A Duality Based Quasi-Steady-State Model of Three-Phase Five-Limb Sen Transformer

Implementation of Sen transformer in distribution network for line loss reduction with improved voltage profile

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