Steady-state modelling of Extended Sen Transformer for unified iterative power flow solution

Feng, Jinling; Han, Song; Pan, Yuhang; Hu, Xiao

doi:10.1016/j.epsr.2020.106492

Cited by 12 publications

(5 citation statements)

References 21 publications

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“…This paper is dedicated to the development and research of a regulation transformer based on the principle of operation of the ST, but with an extended range and higher control accuracy. In the process of research, methods of mathematical, structural and simulation modeling were applied based on objects built in SPS-models in the Simulink/Matlab environment [23][24][25][26][27][28]. The principle circuit diagram of research object is shown in Figure 1.…”

Section: Common Characteristic Of the Object Of Researchmentioning

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: Common Characteristic Of the Object Of Researchmentioning

confidence: 99%

Modes of the Booster Transformer Withregulation in Zigzag

Postoronca¹,

Dmitrii²,

Tirsu³

et al. 2022

JES

View full text Add to dashboard Cite

show abstract

“…The parameters of the two-parameter Weibull distribution function are got by fitting the historical wind speed. According to the mean and variance formula of Weibull distribution, the estimating parameters may be obtained by (5).…”

Section: A An Expression Of Randomness For Wind Powermentioning

confidence: 99%

“…[1][2][3]. Nevertheless, the intermittent and stochastic natures of distributed RESs have introduced great challenges for the efficiency and security of energy distribution system [4,5]. The peakregulating pressure of thermal power plant (TPP) is also sharply increasing [6,7], leading to the rising of the operational cost for thermal power unit (TPU).…”

mentioning

confidence: 99%

Stochastic Economic Dispatch of Hydro-Thermal-Wind-Photovoltaic Power System Considering Mixed Coal-Blending Combustion

Huang

Han

et al. 2020

IEEE Access

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“…From the perspective of the iron-core structure for ST, previous studies were mainly focused on single-phase transformer bank or three-phase three-limb structure. For the sake of developing those models and methods suitable for power system steady analysis, a steady-state model of the EST for unified iterative power flow solution was established in [24]. A kind of control strategy for the tap-changers was proposed in [25], which can fulfill an optimal combination of tap-settings for the voltage compensating windings of the ST. For the purpose of understanding the transient behavior in the commutation process for the EST, a switching transient model of the EST was built in [26].…”

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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Steady-state modelling of Extended Sen Transformer for unified iterative power flow solution

Cited by 12 publications

References 21 publications

Modes of the Booster Transformer Withregulation in Zigzag

Modes of the Booster Transformer Withregulation in Zigzag

Stochastic Economic Dispatch of Hydro-Thermal-Wind-Photovoltaic Power System Considering Mixed Coal-Blending Combustion

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

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