Review of Solid-State Transformer Technologies and Their Application in Power Distribution Systems

She, Xu; Huang, Alex Q.; Burgos, Rolando

doi:10.1109/jestpe.2013.2277917

Cited by 934 publications

(115 citation statements)

References 51 publications

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“…, (6) where m is the DHB transformer relation, L d is the total leakage of the transformer referred to the HV side, f dhb sw is the switching frequency of the DHB converter, and δ X is the phase shift angle between the voltages generated at the HV and LV sides of the DHB under consideration. Dividing this power by V busHX [k], it results…”

Section: Dual Half Bridge (Dhb)mentioning

confidence: 99%

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Control of a three-stage medium voltage solid-state transformer

Busada¹,

Chiacchiarini²,

Jorge³

et al. 2017

Adv. sci. technol. eng. syst. j.

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Section: Dual Half Bridge (Dhb)mentioning

confidence: 99%

“…In addition, it is possible to find some reviews dealing with the subject [5,6]. Applications in transportation and smart grid can be found in [7]; whereas a topology based on SiC devices can be found in [8].…”

Section: Introductionmentioning

confidence: 99%

Control of a three-stage medium voltage solid-state transformer

Busada¹,

Chiacchiarini²,

Jorge³

et al. 2017

Adv. sci. technol. eng. syst. j.

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“…Electronic power transformers (EPTs) [4,5], also called solid state transformers (SSTs) or power electronic transformers (PETs) [6,7], has been investigated in recent years and identified as an emerging intelligent electronic device to meet the aforementioned requirements for the future smart grid or Energy Internet [8,9]. Unlike a line-frequency transformer, an EPT is generally composed of power…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of the Common Mode Voltage in a Cascaded H-Bridge Electronic Power Transformer

Yang¹,

Mao²,

Wang³

et al. 2017

Energies

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Electronic power transformers (EPTs) have been identified as emerging intelligent electronic devices in the future smart grid, e.g., the Energy Internet, especially in the application of renewable energy conversion and management. Considering that the EPT is directly connected to the medium-voltage grid, e.g., a10 kV distribution system, and its cascaded H-bridges structure, the common mode voltage (CMV) issue will be more complex and severe. The CMV will threaten the insulation of the entire EPT device and even produce common mode current. This paper investigates the generated mechanism and characteristics of the CMV in a cascaded H-bridge EPT (CHB-EPT) under both balanced and fault grid conditions. First, the CHB-EPT system is introduced. Then, a three-phase simplified circuit model of the high-voltage side of the EPT system is presented. Combined with a unipolar modulation strategy and carrier phase shifting technology by rigorous mathematical analysis and derivation, the EPT internal CMV and its characteristics are obtained. Moreover, the influence of the sinusoidal pulse width modulation dead time is considered and discussed based on analytical calculation. Finally, the simulation results are provided to verify the validity of the aforementioned model and the analysis results. The proposed theoretical analysis method is also suitable for other similar cascaded converters and can provide a useful theoretical guide for structural design and power density optimization.

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“…Lately, there is an increased interest in the use of isolated multiport converters for interfacing multiple energy sources, loads and/or Energy Storage Systems (ESS) [1]. One solution for this interfacing converter is based on the so-called SolidState Transformer (SST), which allows for removing the low frequency transformer usually employed for achieving the required galvanic isolation.…”

Section: Introductionmentioning

confidence: 99%

Switching frequency optimization for a solid state transformer with energy storage capabilities

Garcia

Saeed

Navarro-Rodríguez

et al. 2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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Abstract-This paper is focused on establishing a procedure for measuring the efficiency dependency on the switching frequency for a solid state transformer (SST), being one of the ports connected to an energy storage device (Lithium-Ion battery). Multiple contributions for measuring the efficiency/losses for different power converter structures for energy storage applications can be found in the literature. However, there are few references which consider the effects of the high frequency model of the battery in the complete system performance. This research will obtain a parametric high frequency model of the battery cells, based on a vector fitting method in frequency domain. This model will be used for the estimation of the overall system losses. It will be demonstrated that the contribution of the battery losses, as well as its behavior as a function of the switching frequency, can significantly affect the selection of the converter's switching frequency.

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Review of Solid-State Transformer Technologies and Their Application in Power Distribution Systems

Cited by 934 publications

References 51 publications

Control of a three-stage medium voltage solid-state transformer

Control of a three-stage medium voltage solid-state transformer

Modeling and Analysis of the Common Mode Voltage in a Cascaded H-Bridge Electronic Power Transformer

Switching frequency optimization for a solid state transformer with energy storage capabilities

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