Modelling and control of single phase DAB based MVDC shipboard power system

Cupelli, Marco; Gurumurthy, Sriram Karthik; Monti, Antonello

doi:10.1109/iecon.2017.8217190

Cited by 13 publications

(16 citation statements)

References 12 publications

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“…MPC solutions have been also proposed in previous studies; 55,56,60 those solutions are based on accurate models describing the converter in a wide operation range. However, this type of controller has an important restriction, which consist in the high computational resources required for the controller operation, this making the controller a costly solution, difficult to implement in embedded devices, and impossible to implement using analog circuits.…”

Section: Discussionmentioning

confidence: 99%

“…Such an algorithm was tested by perturbing the converter, demonstrating the controller robustness for multiple operation points using simulations. Another approach was proposed by Cupelli et al, 55 which consists of a medium voltage DC control system (MVDC) for ship power systems. Such a solution is based on an LQI formulation, which is used to design a linear model predictor controller (MPC).…”

Section: Methodsmentioning

confidence: 99%

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Systematic analysis of control techniques for the dual active bridge converter in photovoltaic applications

Herrera‐Jaramillo

Montoya

Henao‐Bravo

et al. 2021

Circuit Theory & Apps

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Summary The dual active bridge (DAB) converter has high efficiency and versatility; hence, such a converter has been used to design photovoltaic (PV) applications with both step‐up and step‐down voltage capabilities. However, PV systems require maximum power point tracking (MPPT) controllers to track the optimal operation conditions; moreover, PV voltage controllers are required to reject load perturbations that reduce the MPPT performance. This paper describes the operation of a DAB converter in PV systems and compares the performance of the DAB converter with a classical boost solution. In addition, this paper also presents a systematic analysis of the control techniques for DAB converters in PV applications, which provides useful information for selecting the most suitable approach for a particular application.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Systematic analysis of control techniques for the dual active bridge converter in photovoltaic applications

Herrera‐Jaramillo

Montoya

Henao‐Bravo

et al. 2021

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…Alternatively, other linear approaches can be found in the literature, including decoupling methods [19], [28], [29], compensators [30], [31], optimal Linear Quadratic Gaussian control [32], or H ∞ control [33]. The aforementioned control strategies are based on linearized models and the analysis is based on small-gain approximations.…”

Section: B Control Of Dc-dc Multiport Convertersmentioning

confidence: 99%

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

et al. 2021

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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.

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“…The DAB converter has the characteristics of electrical isolation, modularity, high power density and so on. It is suitable for ship energy storage connected to the medium voltage DC grid from the low voltage DC side [28]. The topology of the main circuit of the DAB converter used in this paper is shown in Fig.…”

Section: Mvdc Ship Power System With Hessmentioning

confidence: 99%

Decentralised power distribution and SOC management algorithm for the hybrid energy storage of shipboard integrated power system

Lin

Xiao

2020

IET gener. transm. distrib.

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In the medium voltage direct current (MVDC) shipboard grid, the inherent inertial support from the DC capacitors is too small to resist step changes or fluctuations from the high power pulse load and propulsion load, which results in lower DC voltage quality. This study proposes a decentralised control algorithm for the MVDC shipboard hybrid energy storage system (HESS) to enhance the onboard survivability. This algorithm adjusts the droop control coefficient based on the bus voltage change rate adaptively, meanwhile the voltage differential signal processing and filtering are implemented by the trace differentiator. In addition, the proposed algorithm also has state-of-charge (SOC) balancing and SOC recovery abilities between multiple groups of energy storage devices. The parameter selection principle are analysed, and a variety of working conditions are simulated and verified in PSCAD. Theoretical analysis and simulation show that, HESS can achieve good power distribution and SOC management performance without communication compared to fixed droop coefficient control strategies, and the dynamic characteristics of bus voltage have been significantly improved.

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Modelling and control of single phase DAB based MVDC shipboard power system

Cited by 13 publications

References 12 publications

Systematic analysis of control techniques for the dual active bridge converter in photovoltaic applications

Systematic analysis of control techniques for the dual active bridge converter in photovoltaic applications

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

Decentralised power distribution and SOC management algorithm for the hybrid energy storage of shipboard integrated power system

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