A Modified Dual Active Bridge Converter With Hybrid Phase-Shift Control for Wide Input Voltage Range

Shen, Yanfeng; Sun, Xiaofeng; Li, Wuying; Wu, Xiaoying; Wang, Baocheng

doi:10.1109/tpel.2015.2510033

Cited by 50 publications

(17 citation statements)

References 39 publications

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“…Similarly, in DAB converters operating with a single phase-shift leads to loss of softswitching and higher current stress. Different dual phaseshifts modulations [13]- [15] and triple phase-shift modulations [16]- [18] were proposed for DAB to increase the operating efficiency. The soft-switching areas of DAB converters operated with all three degrees of freedom were identified using various approaches [19]- [25].…”

Section: Introductionmentioning

confidence: 99%

Zero Voltage Switching Criteria of Triple Active Bridge Converter

Purgat

Bandyopadhyay

Qin

et al. 2021

IEEE Trans. Power Electron.

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Triple active bridge (TAB) as an isolated multi-port converter is a promising integrated energy system for smart grids or electric vehicles. This paper aims to derive and analyse zero voltage switching (ZVS) regions of TAB, in which both switching losses are reduced, and EMI issues are mitigated. In the proposed closed-form solution of ZVS criteria, parameters such as the parasitic capacitance of the switches, the leakage inductance of the transformer, the switching frequency, the port voltage, the phase-shift inside and between the full-bridges are all taken into account. The analysis shows how the five degrees of freedom can be used to maintain ZVS operation in various operating points. The analysis and derived closed-form ZVS criteria are experimentally verified using a laboratory prototype. The derived analytical ZVS criteria are a powerful tool to study and optimise the operation of TAB converters.

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Section: Introductionmentioning

confidence: 99%

Zero Voltage Switching Criteria of Triple Active Bridge Converter

Purgat

Bandyopadhyay

Qin

et al. 2021

IEEE Trans. Power Electron.

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“…When considering minimum inductor current for a short dead time interval, even larger parts of the theoretical zero voltage sequence (ZVS) region involve the incomplete commutation due to the parasitic output capacitance of MOSFETs, leading to degraded performance and reduced efficiency. However, most of the control schemes presented in the literature on DAB converter only consider the theoretical ZVS constraint, i.e., the inductor current at the switching instant should be of the right polarity (either positive or negative) [1].…”

Section: Introductionmentioning

confidence: 99%

“…A new closed loop HPS control for a DAB converter with variable input voltage is proposed in reference [1]. The dead time effect has become major aspect in the development of isolated bidirectional full bridge DC-DC converter (IBDC).…”

Section: Introductionmentioning

confidence: 99%

An improved closed loop hybrid phase shift controller for dual active bridge converter

Narasimha¹,

Salkuti

2020

IJECE

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In this paper, a new closed loop hybrid phase shift control is proposed for dual active bridge (DAB) converter with variable input voltage. The extended phase shift (EPS) control is applied when load gets heavy enough and the secondary side phase shift angle decreases to zero. When this modified DAB converter operates at light loads, the triple phase shift (TPS) modulation method is applied, and the added control freedom is the secondary phase shift angle between the two-secondary side switching legs. The hybrid phase shift control (HPS) scheme is a combination of EPS and TPS modulations, and it provides a very simple closed form implementation for the primary and secondary side phase shift angles. Depending on the application by changing the phase shift angles we can achieve Buck or Boost operation. A characteristic table feedback control method has been used for closed loop operation. By using 1D look up table the proposed DAB converter provides constant 400V for any given input voltage.

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“…In this paper, closed-form expressions corresponding to two control strategies are derived which minimize RMS value must be consistent At present, there are four main DAB converter topologies: single-phase/three-phase voltage source, single-phase current source, and single-phase resonant type. Control methods mainly focus on the phase shift control strategy, including single phase shift, double phase shift, expansion double phase shift, triple phase shift, phase shift plus pulse width modulation (PWM) hybrid control strategy, and model predictive control methods [7][8][9][10][11][12][13]. The single phase shift control strategy is simple and easy to realize, but the range of output power is narrow and reverse power exists.…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimization Control for the Aerospace Dual-Active Bridge Power Converter

Lei¹,

Wu²,

Liu³

2018

Energies

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With the development of More Electrical Aircraft (MEA), the electrification of secondary power systems in aircraft is becoming more and more common. As the key power conversion device, the dual active bridge (DAB) converter is the power interface for the energy storage system with the high voltage direct current (HVDC) bus in aircraft electrical power systems. In this paper, a DAB DC-DC converter is designed to meet aviation requirements. The extended dual phase shifted control strategy is adopted, and a multi-objective genetic algorithm is applied to optimize its operating performance. Considering the three indicators of inductance current root mean square root (RMS) value, negative reverse power and direct current (DC) bias component of the current for the high frequency transformer as the optimization objectives, the DAB converter's optimization model is derived to achieve soft switching as the main constraint condition. Optimized methods of controlling quantity for the DAB based on the evolution and genetic algorithm is used to solve the model, and a number of optimal control parameters are obtained under different load conditions. The results of digital, hard-in-loop simulation and hardware prototype experiments show that the three performance indexes are all suppressed greatly, and the optimization method proposed in this paper is reasonable. The work of this paper provides a theoretical basis and researching method for the multi-objective optimization of the power converter in the aircraft electrical power system.

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A Modified Dual Active Bridge Converter With Hybrid Phase-Shift Control for Wide Input Voltage Range

Cited by 50 publications

References 39 publications

Zero Voltage Switching Criteria of Triple Active Bridge Converter

Zero Voltage Switching Criteria of Triple Active Bridge Converter

An improved closed loop hybrid phase shift controller for dual active bridge converter

Multi-Objective Optimization Control for the Aerospace Dual-Active Bridge Power Converter

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