Generalized averaging modeling and control strategy for three-phase dual-active-bridge DC-DC converters with three control variables

Li, Zhuoqiang; Wang, Yue; Shi, Linjun; Huang, Jun; Cui, Yao; Liu, Wanjun

doi:10.1109/apec.2017.7930829

Cited by 21 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The GSSA methodology was proposed for a dual-active bridge (DAB) converter in [20], and later extended in [21]. See also [22] for a three-phase DAB converter. The main attractiveness of using such Fourier harmonic approach is that the resulting model provides a good physical insight.…”

Section: A Modelling Approachesmentioning

confidence: 99%

Modelling and Nonlinear Control of a Magnetically Coupled Multiport DC-DC Converter for Automotive Applications

et al. 2021

View full text Add to dashboard Cite

This work presents a nonlinear control strategy for a magnetically coupled multiport dc-dc converter aimed at automotive applications. First, a behavioural dynamic model, based on averaging the power flowing among the ports, is derived. Then, a control algorithm, based on feedback linearization techniques, is proposed. Essentially, the controller ensures decoupling and a linear dynamic behaviour thanks to a transformation of control and state variables, and a conventional PI action is devised to render asymptotic stability, as well as robustness to load uncertainties. The inversion of the control transformation, which involves nonlinear terms, is carried out using linear approximations with no significant performance decay. Hence, simplicity and efficiency are the main features of the control design. The proposed controller is validated via experimental results.INDEX TERMS Isolated multiport dc-dc converter, bidirectional power flow, nonlinear control, feedback linearization, decoupling, phase-shifted pulse width modulation, automotive applications.

show abstract

Section: A Modelling Approachesmentioning

confidence: 99%

Modelling and Nonlinear Control of a Magnetically Coupled Multiport DC-DC Converter for Automotive Applications

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Equations 7- (11) are averaged using Fourier series properties [26,35,36]. The resulting system of equations defined by (2)-(6) and (12)-(18) is implemented in EMTP by the control blocks, and solved using [37].…”

Section: Generalized Averaging Modelmentioning

confidence: 99%

Large-signal modeling of three-phase dual active bridge converters for electromagnetic transient analysis in DC grids

Berger

Koçar

Fortin-Blanchette

et al. 2019

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

The three-phase dual active bridge (3p-DAB) converter is widely considered in next-generation DC grid applications. As for traditional AC grids, the successful integration of power electronic converters in DC grids requires accurate time-domain system-level studies. As demonstrated in the existing literature, the development and efficient implementation of large-signal models of 3p-DAB converters are not trivial. In this paper, a generalized average model is developed, which enables system-level simulation of DC grids with 3p-DAB converters in electromagnetic transient type (EMT-type) programs. The proposed model is rigorously compared with alternative modeling techniques: ideal-model, switching-function and state-space averaging. It is concluded that the generalized average model provides an optimal solution when accuracy of transient response, reduction in computation time, and wideband response factors are considered.

show abstract

“…Although many research studies have examined the controller design of single-phase DAB (SP-DAB) converters [13][14][15], there are only a few research studies that have investigated the SSM of the 3P-DAB converter and its theoretical controller design [9,[18][19][20]. This is because they require complex and difficult dedicated design procedures.…”

Section: Introductionmentioning

confidence: 99%

Practical Controller Design of Three-Phase Dual Active Bridge Converter for Low Voltage DC Distribution System

Choi¹,

Lee²,

Jung

2020

Electronics

View full text Add to dashboard Cite

In a low voltage DC (LVDC) distribution system, isolated bi-directional DC-DC converters are key devices to control power flows. A three-phase dual-active-bridge (3P-DAB) converter is one of the suitable candidates due to inherent soft-switching capability, low conduction loss, and high-power density. However, the 3P-DAB converter requires a well-designed controller due to the influence of the equivalent series resistance (ESR) of an output filter capacitor, degrading the performance of the 3P-DAB converter in terms of high-frequency noise. Unfortunately, there is little research that considers the practical design methodology of the 3P-DAB converter’s controller because of its complexity. In this paper, the influence of the ESR on the 3P-DAB converter is presented. Additionally, the generalized average small-signal model (SSM) of the 3P-DAB converter including the ESR of the capacitive output filter is presented. Based on this model, an extended small-signal model and appropriate controller design guide, and performance comparison are presented based on the frequency domain analysis. Finally, experimental results verify the validity of the proposed controller using a 25 kW prototype 3P-DAB converter.

show abstract

Generalized averaging modeling and control strategy for three-phase dual-active-bridge DC-DC converters with three control variables

Cited by 21 publications

References 11 publications

Modelling and Nonlinear Control of a Magnetically Coupled Multiport DC-DC Converter for Automotive Applications

Modelling and Nonlinear Control of a Magnetically Coupled Multiport DC-DC Converter for Automotive Applications

Large-signal modeling of three-phase dual active bridge converters for electromagnetic transient analysis in DC grids

Practical Controller Design of Three-Phase Dual Active Bridge Converter for Low Voltage DC Distribution System

Contact Info

Product

Resources

About