A novel hybrid DC traction power supply system integrating PV and reversible converters

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A novel hybrid DC traction power supply system integrating PV and reversible converters. / Zhang, Gang; Tian, Zhongbei; Du, Huiqing; Liu, Zhigang.

In: Energies, Vol. 11, No. 7, 1661, 07.2018.

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@article{6231e5f8cdd1491594a4623c868e3096,
title = "A novel hybrid DC traction power supply system integrating PV and reversible converters",
abstract = "A novel hybrid traction power supply system (HTPSS) integrating PV and reversible converter (RC) is proposed. PV is introduced to reduce the energy cost and increase the reliability of power systems. A reversible converter can achieve multiple objectives including regenerative braking energy recovery, PV energy inverting, DC voltage regulation and power factor improvement. In this paper, the topology and operating modes of the HTPSS are first introduced. Three-level boost converter (TLBC) is employed in the PV system. A double closed-loop control scheme considering both maximum power point tracking (MPPT) and midpoint potential balancing (MPB) is recommended. The reversible converter adopts a multi-modular topology and the independent control for active power and reactive power has been achieved by a current decoupling control. According to the working characteristic of each device, a coordinated control strategy is designed, and four basic principles are given. A system simulation model containing a hybrid traction substation and a train was built, and comprehensive simulations under multi-scenario were carried out. The results show that the reversible converter can accomplish PV energy inversion, DC voltage regulation, regenerative braking energy recovery and power factor improvement, by which a high utilization rate and energy-saving effect can be obtained.",
keywords = "Coordinated control, Photovoltaic, Regenerative braking, Three-level boost converter, Traction power system",
author = "Gang Zhang and Zhongbei Tian and Huiqing Du and Zhigang Liu",
year = "2018",
month = jul,
doi = "10.3390/en11071661",
language = "English",
volume = "11",
journal = "Energies",
issn = "1996-1073",
publisher = "MDPI",
number = "7",

}

RIS

TY - JOUR

T1 - A novel hybrid DC traction power supply system integrating PV and reversible converters

AU - Zhang, Gang

AU - Tian, Zhongbei

AU - Du, Huiqing

AU - Liu, Zhigang

PY - 2018/7

Y1 - 2018/7

N2 - A novel hybrid traction power supply system (HTPSS) integrating PV and reversible converter (RC) is proposed. PV is introduced to reduce the energy cost and increase the reliability of power systems. A reversible converter can achieve multiple objectives including regenerative braking energy recovery, PV energy inverting, DC voltage regulation and power factor improvement. In this paper, the topology and operating modes of the HTPSS are first introduced. Three-level boost converter (TLBC) is employed in the PV system. A double closed-loop control scheme considering both maximum power point tracking (MPPT) and midpoint potential balancing (MPB) is recommended. The reversible converter adopts a multi-modular topology and the independent control for active power and reactive power has been achieved by a current decoupling control. According to the working characteristic of each device, a coordinated control strategy is designed, and four basic principles are given. A system simulation model containing a hybrid traction substation and a train was built, and comprehensive simulations under multi-scenario were carried out. The results show that the reversible converter can accomplish PV energy inversion, DC voltage regulation, regenerative braking energy recovery and power factor improvement, by which a high utilization rate and energy-saving effect can be obtained.

AB - A novel hybrid traction power supply system (HTPSS) integrating PV and reversible converter (RC) is proposed. PV is introduced to reduce the energy cost and increase the reliability of power systems. A reversible converter can achieve multiple objectives including regenerative braking energy recovery, PV energy inverting, DC voltage regulation and power factor improvement. In this paper, the topology and operating modes of the HTPSS are first introduced. Three-level boost converter (TLBC) is employed in the PV system. A double closed-loop control scheme considering both maximum power point tracking (MPPT) and midpoint potential balancing (MPB) is recommended. The reversible converter adopts a multi-modular topology and the independent control for active power and reactive power has been achieved by a current decoupling control. According to the working characteristic of each device, a coordinated control strategy is designed, and four basic principles are given. A system simulation model containing a hybrid traction substation and a train was built, and comprehensive simulations under multi-scenario were carried out. The results show that the reversible converter can accomplish PV energy inversion, DC voltage regulation, regenerative braking energy recovery and power factor improvement, by which a high utilization rate and energy-saving effect can be obtained.

KW - Coordinated control

KW - Photovoltaic

KW - Regenerative braking

KW - Three-level boost converter

KW - Traction power system

UR - http://www.scopus.com/inward/record.url?scp=85051177876&partnerID=8YFLogxK

U2 - 10.3390/en11071661

DO - 10.3390/en11071661

M3 - Article

AN - SCOPUS:85051177876

VL - 11

JO - Energies

JF - Energies

SN - 1996-1073

IS - 7

M1 - 1661

ER -