A Comprehensive Optimization Control of Dual-Active-Bridge DC–DC Converters Based on Unified-Phase-Shift and Power-Balancing Scheme

Hou, Nie; Song, Wensheng; Li, Yunwei; Zhu, Yanan; Zhu, Yutong

doi:10.1109/tpel.2018.2813995

Cited by 58 publications

(26 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the excellent performances of the MCSO method [33] and power-control concept [104] can be obtained at the same time by using the HSDO strategy [111]. Therefore, the hybrid efficiency-and dynamic-optimization concept, as shown in Fig.…”

Section: B Experimental Results Among the Hsdo Strategy And Other Mementioning

confidence: 98%

“…Moreover, when the desired output voltage is 40 V, Figs. 41-43 show the experimental results of single-voltage-loop control with the SPS modulation method, the VDPC scheme [104], and the HSDO strategy [111] and under disturbances of the input voltage and the load resistor, respectively.…”

Section: B Experimental Results Among the Hsdo Strategy And Other Mementioning

confidence: 99%

“…Based on this hybrid efficiency-and dynamic-optimization concept, an HSDO strategy by combining the MCSO method [33] and power-control concept [104] has been proposed to improve the efficiency and robustness at the same time of an NSDAB dc-dc converter [111], which is shown in Fig. 38.…”

Section: A Hybrid Static-and Dynamic-optimization (Hsdo) Strategy Fomentioning

confidence: 99%

“…As shown in Fig. 38, the simplified transferred power of the NSDAB dc-dc converter can be acquired according to (28) first, then combining Table IV, this comprehensive optimizing control strategy can be implemented to increase the efficiency and enhance the dynamic performances of the NSDAB dc-dc converter [111].…”

Section: A Hybrid Static-and Dynamic-optimization (Hsdo) Strategy Fomentioning

confidence: 99%

See 3 more Smart Citations

Overview and Comparison of Modulation and Control Strategies for a Nonresonant Single-Phase Dual-Active-Bridge DC–DC Converter

Hou

2020

IEEE Trans. Power Electron.

Self Cite

347

119

View full text Add to dashboard Cite

The nonresonant single-phase dual-active-bridge (NSDAB) dc-dc converter has been increasingly adopted for isolated dc-dc power conversion systems. Over the past few years, significant research has been carried out to address the technical challenges associated with modulations and controls of the NSDAB dc-dc converter. The aim of this paper is to review and compare these recent state-of-the-art modulation and control strategies. First, the modulation strategies for the NSDAB dc-dc converter are analyzed. All possible phase-shift patterns are demonstrated, and the correlation analysis of the typical phases-shift modulation methods for the NSDAB dc-dc converter is presented. Then, an overview of steady-state efficiency-optimization strategies is discussed for the NSDAB dc-dc converter. Moreover, a review of optimized techniques for dynamic responses is also provided. For both the efficiency and dynamic optimizations, thorough comparisons and recommendations are provided in this paper. Finally, to improve both steady-state and transient performances, a combination approach to optimize both the efficiency and dynamics for an NSDAB dc-dc converter based on the reviewed methods is presented in this paper. Index Terms-Current feedback control, current stress, dualactive-bridge (DAB) converter, dynamic performances, efficiency, observer-based control, power control, power losses, reactive power. NOMENCLATURENSDAB Nonresonant single-phase dual-active-bridge. EV Electrical vehicle. SST Solid-state transformer. BTB Back-to-back. MMDCT Modular multilevel dc-link solid-state transformer. SPS Single-phase-shift. ZVS Zero-voltage-switching. DPS Dual-phase-shift. EPS Extended-phase-shift. TPS Triple-phase-shift.

show abstract

Section: B Experimental Results Among the Hsdo Strategy And Other Mementioning

confidence: 98%

Section: B Experimental Results Among the Hsdo Strategy And Other Mementioning

confidence: 99%

Section: A Hybrid Static-and Dynamic-optimization (Hsdo) Strategy Fomentioning

confidence: 99%

Section: A Hybrid Static-and Dynamic-optimization (Hsdo) Strategy Fomentioning

confidence: 99%

See 2 more Smart Citations

Overview and Comparison of Modulation and Control Strategies for a Nonresonant Single-Phase Dual-Active-Bridge DC–DC Converter

Hou

2020

IEEE Trans. Power Electron.

Self Cite

347

119

View full text Add to dashboard Cite

show abstract

“…Moreover, when the dc-bus voltage is regulated by using a PI controller, it cannot mitigate the second-order harmonic component in the dc-bus voltage without requiring a large capacitor. In the literature, various control methods are presented to enhance the transient response of the frond-end DAB converter and to reduce the magnitude of the second-order harmonic component in the dc-bus voltage without increasing dc-bus capacitance [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of DC‐bus voltage regulation in cascaded converter system by a new sensorless load current feedforward control scheme

Ali

Yaqoob

Cao

et al. 2021

IET Power Electronics

View full text Add to dashboard Cite

It is generally known that, with conventional PI control, the stability and dynamic response performances of a power converter cannot be optimized simultaneously. To overcome this limitation, an uncertainty and disturbance estimator assisted sensorless load current feedforward control for dc‐bus voltage regulation is presented to achieve fast dynamic response to load variations while stability is guaranteed by tuning PI controller. The proposed control scheme is verified on a cascaded converters system comprising a front end dc‐dc DAB converter followed by a single‐phase inverter as an illustrative case. Load‐current feedforward is used to enhance the transient response of the front end DAB converter while an uncertainty and disturbance estimator is used to compensate for any non‐idealities arising from model uncertainties and error in load current estimation. To validate the proposed control scheme, experimental results obtained from a 250‐W cascaded converter system are presented and compared rigorously to the performance of conventional PI control.

show abstract

Optimal reactive power control for dual‐active‐bridge converter using improved dual‐phase‐shift modulation strategy for electric vehicle application

Chilakalapudi

Kumar

2022

Circuit Theory & Apps

View full text Add to dashboard Cite

Dual active bridge (DAB) based DC-DC converters are in high demand for offering quick charging capacity to Electric vehicles (EVs). The conventional technique for DAB is based on single-phase-shift (SPS), though it provides simple control but suffers from high peaking in the inductor current under varying charging rates for EV and dc-link voltage ratio. In this paper, initially the expression for optimal reactive power flow into DAB converter under SPS and dual phase-shift (DPS) control techniques are thoroughly examined. Based on the analytical analysis, an improved dual-phase-shift modulation (IDPSM) method for real and reactive power control through a DAB converter is proposed for varying charging rates of an EV and dc-link voltage ratio. The proposed IDPSM control technique is implemented using the inverse perturb and observe (IPO) method that provides optimum inner phase-shift between the legs of the H-bridge to track minimum reactive power or back power flow into the system. This method automatically adjusts the inner and outer phase shift ratios under different loading conditions. Further, the proposed IDPSM scheme enhances the range of ZVS operation even under light load conditions, which is lacking with the conventional control techniques. The Lyapunov theory used to determine the stability of the DAB DC/DC converter. To validate the proposed control scheme, a detailed simulation is carried out using MATLAB/Simulink with a 2 kW system under varying charging rates of an EV. Further, to support the effectiveness of the proposed scheme, a comparison with different phase shift modulation schemes is also presented. Finally, an experimental prototype for DAB is developed to confirm the feasibility of the control technique. K E Y W O R D Sdual active bridge (DAB), dual-phase-shift (DPS), electric vehicle (EV), improved dualphase-shift modulation (IDPSM), reactive power, single-phase-shift (SPS)

show abstract

A Comprehensive Optimization Control of Dual-Active-Bridge DC–DC Converters Based on Unified-Phase-Shift and Power-Balancing Scheme

Cited by 58 publications

References 24 publications

Overview and Comparison of Modulation and Control Strategies for a Nonresonant Single-Phase Dual-Active-Bridge DC–DC Converter

Overview and Comparison of Modulation and Control Strategies for a Nonresonant Single-Phase Dual-Active-Bridge DC–DC Converter

Enhancement of DC‐bus voltage regulation in cascaded converter system by a new sensorless load current feedforward control scheme

Optimal reactive power control for dual‐active‐bridge converter using improved dual‐phase‐shift modulation strategy for electric vehicle application

Contact Info

Product

Resources

About