A Zero-Voltage Switching Three-Port Isolated Full-Bridge Converter

Al-Atrash, H.; Pepper, M.; Batarseh, Issa

doi:10.1109/intlec.2006.251647

Cited by 29 publications

(9 citation statements)

References 16 publications

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“…However, as discussed before, these operating modes move the current stress from the converter secondary to the primary side due to the generated reactive power, which acts in detriment of the efficiency in step up applications. Moreover, as it can be seen by comparing (7) and (21), when the converter leaves the completely demagnetized mode, the converter output voltage is no longer controlled solely by the phase-shift angle. This characteristic increases the difficulty in the implementation of the dual power flow converter control strategy.…”

Section: Circuit Description and Operation Principlesmentioning

confidence: 99%

“…However, in this solution the power delivering capability from the battery port to the output load is limited due to the flyback operation. Two three-port converter (TPC) topologies were proposed in [21] and [22] by integrating a boost converter into a phase-shift full-bridge buck converter, hence, the two non-isolated input ports, which connect with the renewable energy sources, are isolated from the load. After that, the topologies and their derived structures are investigated and presented in [23], [24], [25], [26].…”

Section: Introductionmentioning

confidence: 99%

“…By replacing the clamp capacitor in the ZVS circuit with the second voltage source, an additional input port can be obtained. Compared to the topologies in [21] and [25], the rectifier diodes achieve zero-current switching (ZCS) at turn-off avoiding reverse recovery losses. Additionally, the voltage across the diodes is inherently clamped by the output capacitor C O , therefore, voltage rings caused by the stray inductance can be eliminated.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis, Design, Modeling, and Control of an Interleaved-Boost Full-Bridge Three-Port Converter for Hybrid Renewable Energy Systems

Mira

Zhang

Knott

et al. 2017

IEEE Trans. Power Electron.

149

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Abstract-This paper presents the design, modelling and control of a three-port (TPC) isolated dc-dc converter based on interleaved-boost-full-bridge with pulse-width-modulation and phase-shift control for hybrid renewable energy systems. In the proposed topology, the switches are driven by phase-shifted PWM signals, where both phase angle and duty cycle are controlled variables. The power flow between the two inputs is controlled through the duty cycle, whereas the output voltage can be regulated effectively through the phase-shift. The primary side MOSFETs can achieve zero-voltage switching (ZVS) operation without additional circuitry. Additionally, due to the ac output inductor, the secondary side diodes can operate under zerocurrent switching (ZCS) conditions. In this work, the operation principles of the converter are analyzed and the critical design considerations are discussed. The dynamic behavior of the proposed ac inductor based TPC is investigated by performing state-space modelling. Moreover, the derived mathematical models are validated by simulation and measurements. In order to verify the validity of the theoretical analysis, design and power decoupling control scheme, a prototype is constructed and tested under the various modes, depending on the availability of the renewable energy source and the load consumption. The experimental results show that the two decoupled control variables achieve effective regulation of the power flow among the three ports.Index Terms-Three-port converter, state-space modelling, renewable energy, energy storage, phase-shift and duty cycle control.

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Section: Circuit Description and Operation Principlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis, Design, Modeling, and Control of an Interleaved-Boost Full-Bridge Three-Port Converter for Hybrid Renewable Energy Systems

Mira

Zhang

Knott

et al. 2017

IEEE Trans. Power Electron.

149

View full text Add to dashboard Cite

show abstract

“…Other than traditional two-port converters, multi-port converters can interface and control multiple energy sources and storage devices with one integrated topology [1][2][3][4]. Therefore, instead of several independent converters, the multiport converter has advantages such as less component count and conversion stage because resources like switching devices and storage elements are shared in each switching period.…”

Section: Figure 1 Multi-port Converter Conceptmentioning

confidence: 99%

An integrated four-port converter for compact and efficient hybrid power systems

Qian

Abdel-Rahman

Hamilton

et al. 2010

Proceedings of 2010 IEEE International Symposium on Circuits and Systems

Self Cite

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As interest in renewable energy systems with various sources continues to grow, there is a strong need for integrated power converters that are capable of interfacing and concurrently controlling several power terminals. Meanwhile, energy storage is required to compensate for the mismatch between the sourcing and loading power patterns over a regular operational cycle. Therefore, different operational scenarios and modes exist during a regular operational cycle. This necessitates an intelligent power management and a mature and advanced control strategy in order to boost energy harvesting, protect the battery and increase overall system functionality, reliability and efficiency. The proposed four-port converter interfaces one photovoltaic (PV) panel input port, one wind turbine input port, one bi-directional battery port and an isolated output port. It has the advantage of low switch count, high power density and high efficiency. Wind and PV Maximum Power Point Tracking (MPPT), battery charge algorithm and bus voltage regulation are efficiently managed by a mature control structure.

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“…For instance, [3] presented and compared different power electronic interfacing solutions for a reversible fuel cell with auxiliary power sources (APS) to overcome the drawbacks of fuel cell systems such as slow dynamics. Moreover, in order to efficiently regulate output voltage, which normally has large voltage difference from input ports, as well as to provide galvanic isolation, many fully or partially isolated three-port dcdc converters with high frequency transformers have been proposed and studied in recent years [7]- [14]. An example of forming a partially isolated converter with two input voltage sources is illustrated in Fig.…”

Section: Introductionmentioning

confidence: 99%

Analytical comparison of dual-input isolated dc-dc converter with an ac or dc inductor for renewable energy systems

Zhang

Mira

Andersen

2017

2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia)

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Abstract-This paper presents two configurations of dualinput (DI) or three-port (TPC) isolated dc-dc converters for hybrid renewable energy systems such as photovoltaics and batteries. These two converters are derived by integrating an interleaved boost converter and a single-active bridge converter with an ac inductor as a power interfacing element or phase-shift softswitching converter with an output dc inductor. Both converters are controlled by a pulse-width modulation and phase-shift hybrid modulation scheme. The two converter topologies are, even though quite similar from the topological and control perspective, distinct in operation principles, voltage/power transfer functions, loss distributions, soft-switching constraints, and power efficiency under the same operating conditions. Moreover, the inductor design differs greatly between these two cases. In this paper, a comprehensive comparison is given for the first time and thereby the corresponding design tradeoffs are discussed. Finally, a laboratory 1 kW prototype is constructed and tested to verify the theoretical analysis.

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A Zero-Voltage Switching Three-Port Isolated Full-Bridge Converter

Cited by 29 publications

References 16 publications

Analysis, Design, Modeling, and Control of an Interleaved-Boost Full-Bridge Three-Port Converter for Hybrid Renewable Energy Systems

Analysis, Design, Modeling, and Control of an Interleaved-Boost Full-Bridge Three-Port Converter for Hybrid Renewable Energy Systems

An integrated four-port converter for compact and efficient hybrid power systems

Analytical comparison of dual-input isolated dc-dc converter with an ac or dc inductor for renewable energy systems

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