Harmonic suppression analysis of a harmonic filtering distribution transformer with integrated inductors based on field–circuit coupling simulation

Xu, Jiazhu; Gu, Xiutian; Liang, Chonggan; Bai, Ziyi; Kubis, Andreas

doi:10.1049/iet-gtd.2017.1153

Cited by 10 publications

(10 citation statements)

References 34 publications

(37 reference statements)

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“…Based on the designed parameters of the two inductors of the LCL-type filter, Figure 5 shows the dimension-based method (DBM) [18,19], which is devoted to designing the practical structure parameters of proposed HSTT with IFIs.…”

Section: Dimension-based Methodsmentioning

confidence: 99%

“…Each IFI winding is composed of two series-connected sub-windings with the same turns and opposite directions. Similar structures have been applied to a distribution transformer [19], rectifier transformer [20], and inductive filtering transformer [21,22]. The proposed IFI method has the merits of a simple inductance design, good linearity of inductance, low impact on transformer operation, and ease of manufacture and application.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Harmonic Suppression Traction Transformer with Integrated Filtering Inductors for Railway Systems

Liu

Shuai

et al. 2020

Energies

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This study analyzes and evaluates the feasibility of a harmonic suppression traction transformer (HSTT) for harmonic reduction in railway systems. This new type of transformer can improve the power quality of railway systems by preventing high-frequency harmonic currents from injecting into the traction grid. As the physical size of available space in high-speed trains is strictly limited, low space-occupying filtering techniques are needed. Therefore, an HSTT with integrated filtering inductors (IFIs) capable of being implemented in regular trains is proposed. Taking advantage of the HSTT, a specially constructed inductive-capacitive-inductive (LCL)-type filter is used for harmonic suppression instead of a regular LCL-type filter. The proposed filter is composed of an integrated inductor, leakage inductor of the traction transformer, and an external filter capacitor. In this paper, we analyze the topology of the proposed system, construct a mathematical model to reveal the magnetic decoupling theory of IFIs, and discuss the design and calculation procedures of the HSTT with IFIs. The field circuit coupling simulation of the HSTT with IFIs is performed to validate the effectiveness of the proposed system. Finally, the practical operation based on a 10 kVA prototype shows that the proposed scheme can not only suppress the high-order frequency harmonics but also decrease the installed space of filter devices.

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Section: Dimension-based Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Harmonic Suppression Traction Transformer with Integrated Filtering Inductors for Railway Systems

Liu

Shuai

et al. 2020

Energies

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“…Passive solutions such as tuned low‐pass filters (LPFs) are simple and robust choices for harmonic mitigation purposes, although performance can be compromised if the load scenario comes to vary. Besides, increased size, weight, and volume regarding the filter elements and resonance risk are significant drawbacks in this case . On the other hand, active approaches associated with the use of power electronic converters have proven to be quite effective in distinct practical solution, although cost and complexity must be carefully taken into account.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, increased size, weight, and volume regarding the filter elements and resonance risk are significant drawbacks in this case. 2 On the other hand, active approaches associated with the use of power electronic converters have proven to be quite effective in distinct practical solution, although cost and complexity must be carefully taken into account.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of active power factor correction techniques in a single‐phase AC‐DC boost converter

Souza

Ribeiro

Vicente

et al. 2019

Circuit Theory & Apps

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Summary The increasing need to improve power quality with the reduction of the harmonic content of current and voltage waveforms has been intensively analyzed in several studies, thus motivating the proposal of many high power factor rectifiers based on the classic converters such as boost and buck‐boost. Moreover, distinct control techniques have also been proposed due to the commercial availability of integrated circuits (ICs) dedicated to impose sinusoidal input currents in switch‐mode power supplies (SMPSs). The boost converter operating in continuous conduction mode (CCM) is by far the most traditional choice for this purpose due to circuit simplicity and low electromagnetic interference (EMI) levels. Within this context, this work analyzes some of the most important control techniques used in power factor correction (PFC). The performance of a single‐phase boost converter using peak current mode control (PCMC), average current mode control (ACMC), and one cycle control (OCC) is evaluated experimentally in detail. A comprehensive analysis of key aspects such as the input current waveform and respective harmonic content, dc output voltage, and dynamic response of the converter is also presented.

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“…Harmonic power has also been widely discussed in the literature [16][17][18], with most recent studies focusing on the development of active filters to mitigate the effects of harmonic components [19][20][21][22][23][24]. Other research focuses on the development of techniques to assess and differentiate the harmonic contribution of customers and networks [25,26].…”

Section: Introductionmentioning

confidence: 99%

Formulation of the Phasors of Apparent Harmonic Power: Application to Non-Sinusoidal Three-Phase Power Systems

et al. 2018

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In this work, the expression of the phasor of apparent power of harmonic distortion is formulated in the time domain. Applying this phasor along with the phasor of apparent unbalance power allows us to obtain a new set of phasors that include all of the inefficient power components appearing in the transfer of energy in non-linear and unbalanced systems. In this manner, a new model of inefficient power in electrical systems is developed. For each voltage harmonic of order 'm' and current harmonic of order 'n', a phasor of harmonic apparent power is obtained. Accuracy in the determination of the total apparent power of a system depends on the number of harmonics considered. Each phasor of apparent harmonic power is formed from six mutually orthogonal parameters or components that are calculated from the harmonic voltages at the nodes of the network and the circulating harmonic currents. To demonstrate the validity of the proposed formulation, a four-wire non-linear system formed by two nodes is assessed.

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Harmonic suppression analysis of a harmonic filtering distribution transformer with integrated inductors based on field–circuit coupling simulation

Cited by 10 publications

References 34 publications

A Novel Harmonic Suppression Traction Transformer with Integrated Filtering Inductors for Railway Systems

A Novel Harmonic Suppression Traction Transformer with Integrated Filtering Inductors for Railway Systems

Experimental evaluation of active power factor correction techniques in a single‐phase AC‐DC boost converter

Formulation of the Phasors of Apparent Harmonic Power: Application to Non-Sinusoidal Three-Phase Power Systems

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