Mitigation of Sympathetic Inrush Current in Transformer Using the Technique of Point on Voltage Wave Control Switching

Yahiou, Abdelghani; Bayadi, Abdelhafid; Babes, Badreddine

doi:10.1109/ccee.2018.8634501

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…In the next subsections, the development of current and voltage loops will be discussed based on the control block diagram of MV BESS in Fig. 5 [19].…”

Section: A Control Loopsmentioning

confidence: 99%

“…Therefore, BESS with a regular controller cannot perform black start in real MV-DN due to overcurrent trip caused by inrush and sympathetic inrush currents of transformers. Some efforts to limit inrush phenomena were done in [18], [19] by closing the circuit breaker (CB) at the optimum time but is not working for MV-DN because the circuit breakers are switched by the distribution system operator (DSO) and also there is no knowledge about parameters of transformers.…”

Section: Introductionmentioning

confidence: 99%

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Inrush Current Management During Medium Voltage Microgrid Black Start With Battery Energy Storage System

et al. 2022

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This paper addresses the black start of medium voltage distribution networks (MV-DNs) by a battery energy storage system (BESS). The BESS consists of a two-level voltage source inverter interfacing MV-DN which has limited overcurrent capability. On the other hand, MV-DN normally includes several step-up and step-down transformers that are drawing sympathetic inrush current in energizing stage. Therefore, the major difficulty to perform black start by BESS during MV-DN island operation lies in the fact that the inverter has to simultaneous control the network voltage and its output current. This paper presents two control approaches for a BESS in order to control the inrush current during MV-DN black start. The proposed control schemes consist of droop, voltage and current loops in the stationary reference frame. The droop loop is used to generate the voltage reference. An intermediate voltage and inner current loops are designed for output voltage regulation, current reference generation as well as current tracking, respectively. New reference modifiers are included into droop and voltage loops to limit inrush current. The proposed control schemes are experimentally tested for energizing Ingå MV-DN in Finland by 1 MVA BESS, and their performance is compared in terms of inrush current value and voltage quality. The obtained results prove that both methods are able to feed the load with a fixed voltage in the steady-state as well as to limit the transformer inrush current considering the inverter overcurrent limit.

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“…In the next subsections, the development of current and voltage loops will be discussed based on the control block diagram of MV BESS in Fig. 5 [19].…”

Section: A Control Loopsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inrush Current Management During Medium Voltage Microgrid Black Start With Battery Energy Storage System

et al. 2022

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Effects of Inrush Current on the Hysteresis Loop and Load Influences on the Transient Current of a Single-Phase Transformer

Yahiou

Mellah

Bayadi

et al. 2022

Eng. Technol. Appl. Sci. Res.

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When putting any unloaded transformer into service, a high-value current that can be very dangerous, called the inrush current, appears. The latter may cause problems and consequences in the electrical system. The challenges of visualizing the effects of transient regimes on the iron core's characteristics and the influence of the type of load on inrush current characteristics are covered in this study. The main purpose of this paper is to treat the influence of this transient phenomenon on the hysteresis loop of a single-phase transformer, in terms of its size, area, or position, and therefore, the influence of the load on the transient regime. A general study of the electromagnetic characteristics of the transformer iron core will be presented. Then, using the ATP-EMTP program, the purpose of the realized simulations is to visualize the relationship between the hysteresis loop and the magnetizing inrush current in the transient state. The results show the decrease of the hysteresis loop area and their shift with respect to the origin of the axes following the increase in the transient inrush current peak. As the second part of this article, there is a study of the influence of the load on the transient regime, i.e. inrush current. This is accomplished by adding a load with different configurations and various connections. The purpose is to find the effect of the load on the reduction of the transient inrush current phenomenon.

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Mitigation of Sympathetic Inrush Current in Transformer Using the Technique of Point on Voltage Wave Control Switching

Cited by 2 publications

References 12 publications

Inrush Current Management During Medium Voltage Microgrid Black Start With Battery Energy Storage System

Inrush Current Management During Medium Voltage Microgrid Black Start With Battery Energy Storage System

Effects of Inrush Current on the Hysteresis Loop and Load Influences on the Transient Current of a Single-Phase Transformer

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