A Soft-Switched Modulation for a Single-Phase Quasi-Z-Source-Integrated Charger in Electric Vehicle Application

Na, Tuopu; Zhang, Qianfan; Dong, Shuai; Raherimihaja, Henri Josephson; Chuai, Guoming

doi:10.1109/tpel.2019.2946424

Cited by 9 publications

(6 citation statements)

References 20 publications

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“…The inductor currents of the quasi-Z-source network operate in boundary conduction mode (BCM) or discontinuous conduction mode (DCM) to achieve all free-wheeling diodes turned off naturally without any additional voltage stress and current stress on all switches in comparison with hard-switching. The details of operation principles of this soft-switching qZSC are analyzed through a PLECS simulation model and a 1.3-kW prototype is established [145].…”

Section: Z Source Converter Topologies For Various Electrical Applicationsmentioning

confidence: 99%

Review of impedance source power converter for electrical applications

Saravanan

Venkatachalam

Borelessa

et al. 2021

IJAAS

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<p>Power electronic converters have been actively researched and developed over the past decades. There is a growing need for new solutions and topography to increase the reliability and efficiency of alternatives with lower cost, size and weight. Resistor source converter is one of the most important power electronic converters that can be used for AC-DC, AC-AC, DC-DC and DC-DC converters which can be used for various applications such as photovoltaic systems, wind power systems, electricity. Vehicles and fuel cell applications. This article provides a comprehensive overview of Z-source converters and their implementation with new configurations with advanced features, emerging control strategies and applications.</p>

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Section: Z Source Converter Topologies For Various Electrical Applicationsmentioning

confidence: 99%

Review of impedance source power converter for electrical applications

Saravanan

Venkatachalam

Borelessa

et al. 2021

IJAAS

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show abstract

“…However, nonzero net torque exists in the machine. To cancel the torque in the 3p machine, most researchers reuse the motor as one filter inductor 21–27 . In this way, single‐phase current flows through the stator windings, generating no magnetic field 21,22 or a pulsating magnetic field 23–27 in the machine.…”

Section: Introductionmentioning

confidence: 99%

“…To cancel the torque in the 3p machine, most researchers reuse the motor as one filter inductor. [21][22][23][24][25][26][27] In this way, single-phase current flows through the stator windings, generating no magnetic field 21,22 or a pulsating magnetic field [23][24][25][26][27] in the machine. Thereby, the net torque can be eliminated.…”

mentioning

confidence: 99%

“…The rest 5/6 of the grid currents flow through the stator windings, hence the motor utilization rate and power density are much higher compared with topologies in previous works. [21][22][23][24][25][26][27][28] In addition, this configuration avoids symmetrical currents flowing through the stator windings. It produces a pulsating instead of a rotating magnetic field in the machine.…”

mentioning

confidence: 99%

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An electric vehicle integrated battery charger with high utilization rate of the three‐phase open‐winding permanent‐magnet‐synchronous‐motor

et al. 2022

Circuit Theory & Apps

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This paper proposes an integrated battery charger for electrical vehicles (EVs) employing a three-phase open-winding permanent magnet synchronous motor (3p OW-PMSM), which can be simply modified from a typical star-connected PMSM. It reutilizes the existing propulsion components to achieve fast charging and vehicle to grid (V2G) operations. Only one nonintegrated inductor is added to realize torque cancelation so that no rotation or vibration is generated. In the fast-charging and the V2G modes, the current flowing through the inductor is half of one phase grid current, namely, one in six of the total grid currents. The rest five in six of the grid currents flow through the stator windings of the motor. Hence, the proposed integrated system has a high utilization rate of the motor and possesses high power density. In addition, an individual inner current controller for each leg of the AC-DC converter is employed to ensure the unity power factor, low current harmonics, and torque elimination.In the motor-drive mode, the equivalent circuit is consistent with the conventional 3p star-connected motor driver. Therefore, it does not increase the complexity of the motor-drive control strategy. Finally, simulation and experimental results for fast-charging, V2G, and propulsion operations verify the feasibility of the proposed scheme.

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“…Multiple DC‐DC converters are connected to common DC‐bus which can connect to different load and sources. Another application area of bidirectional DC‐DC converters is electric vehicles, 5‐7 motor drive applications, 8 uninterruptible power supplies (UPS), 9,10 solid‐state transformers, 11 and more. Bidirectional DC‐DC converters are divided into two types: non‐isolated and isolated types.…”

Section: Introductionmentioning

confidence: 99%

Quasi‐Z‐source‐based bidirectionalDC‐DCconverters for renewable energy applications

Kafle

Hossain

Kashif

2021

Int Trans Electr Energ Syst

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Summary This article presents a design, analysis, and implementation of a novel impedance‐source‐based bidirectional DC‐DC converter. The proposed converter employs an impedance network to the existing dual‐active‐bridge (DAB) circuit. It inherits all the advantages of the DAB converter along with extra benefits. Compared with the traditional isolated DC‐DC converter, the proposed converter improved the boost ability of the converter. Also, the converter can withstand the shoot‐through phenomenon in an H‐bridge, improving the reliability. The converter can work in the normal buck/boost DAB mode when extra boost is not required. The bidirectional feature is inherent along with soft switching capability. It is therefore well‐suited for the applications, where wide range of voltage gains are required such as renewable energy systems. The topological configuration and control strategy of the proposed topology in both operational modes are discussed. Simulation and experiments have been carried out to demonstrate the effectiveness of the proposed converter topology. The peak efficiency 97% was observed at the rated load of 500 W.

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A Soft-Switched Modulation for a Single-Phase Quasi-Z-Source-Integrated Charger in Electric Vehicle Application

Cited by 9 publications

References 20 publications

Review of impedance source power converter for electrical applications

Review of impedance source power converter for electrical applications

An electric vehicle integrated battery charger with high utilization rate of the three‐phase open‐winding permanent‐magnet‐synchronous‐motor

Quasi‐Z‐source‐based bidirectionalDC‐DCconverters for renewable energy applications

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