Next-Generation Shipboard DC Power System: Introduction Smart Grid and dc Microgrid Technologies into Maritime Electrical Netowrks

Jin, Zheming; Sulligoi, Giorgio; Cuzner, Robert; Meng, Lexuan; Vasquez, Juan C.; Guerrero, Josep M.

doi:10.1109/mele.2016.2544203

Cited by 272 publications

(93 citation statements)

References 8 publications

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“…For this reason, a SPS should have at least two independent subsystems, and therefore, zonal electric distribution system (ZEDS), as illustrated in Fig. 1, is preferred for its fault tolerance and reconfiguration capability [10], [11]. Such a system can be sectionalized into several MGs with a simplified single-line structure as shown in Fig.…”

Section: Dc-sps and Its Major Componentsmentioning

confidence: 99%

Hierarchical Control Design for a Shipboard Power System With DC Distribution and Energy Storage Aboard Future More-Electric Ships

Jin

Meng

Guerrero

et al. 2018

IEEE Trans. Ind. Inf.

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156

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Abstract-DC distribution is now becoming the major trend of future mobile power systems, such as more-electric aircrafts and ships. As DC distribution has different nature to conventional AC system, new design of well-structured control and management methods will be mandatory. In this paper, shipboard power system (SPS) with DC distribution and energy storage system (ESS) is picked as study case. To meet the requirement of control and management of such a large-scale mobile power system, a hierarchical control design is proposed in this paper. In order to fully exploit the benefit of ESS, as well as to overcome the limitation in controllability, a novel inverse-droop control method is proposed, in which the power sharing is according to the source characteristic, instead of their power rating. A frequency-division method is also proposed as an extension to the inverse-droop method for enabling hybrid energy storage system (HESS) and its autonomous operation. On the basis of the proposed methods, the control methods for management and voltage restoration levels are also proposed to establish a comprehensive control solution. Real-time simulations are carried out to validate the performance of proposed control design under different operating conditions. When compared to more conventional droop based approaches, the new proposal show enhancement in efficiency.Index Terms-Shipboard power system, DC distribution, energy storage, hierarchical control, more-electric ship, islanded microgrid.

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Section: Dc-sps and Its Major Componentsmentioning

confidence: 99%

Hierarchical Control Design for a Shipboard Power System With DC Distribution and Energy Storage Aboard Future More-Electric Ships

Jin

Meng

Guerrero

et al. 2018

IEEE Trans. Ind. Inf.

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156

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“…On the other extreme, the authors of [16] investigate shipboard power systems for an aircraft carrier "capital ship" with generation capacity of 120 MW. In contrast, the power sources include diesel generator and gas turbine engines [24,25]. Medium power applications such as electric ferry ships may involve the power generation capacities in the order of 10 MW, e.g., 12 MVA system in [26].…”

Section: Power Sources In Ship Power Systemsmentioning

confidence: 99%

Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects

Jayasinghe

Meegahapola²,

Fernando³

et al. 2017

Inventions

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Ship microgrids have recently received increased attention, mainly due to the extensive use of power electronically interfaced loads and sources. Characteristics of these microgrids are similar to islanded terrestrial microgrids, except the presence of highly dynamic large loads, such as propulsion loads. The presence of such loads and sources with power-electronic converter interfaces lead to severe power quality issues in ship microgrids. Generally, these issues can be classified as voltage variations, frequency variations and waveform distortions which are commonly referred to as harmonic distortions. Amongst the solutions identified, energy storage is considered to be the most promising technology for mitigating voltage and/or frequency deviations. Passive filtering is the commonly used technology for reducing harmonic distortions, which requires bulky capacitors and inductors. Active filtering is emerging as an alternative, which could be realised even within the same interfacing converter of the energy storage system. The aim of this paper is to investigate recent developments in these areas and provide readers with a critical review on power quality issues, energy storage technologies and strategies that could be used to improve the power quality in ship microgrids. Moreover, a brief introduction to ship power system architectures is also presented in the paper.

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“…On the other hand, a DC distribution system provides an efficient distribution of electric energy by linking AC and DC energy sources through power-electronic devices which customize energy flow to the load [11,12]. However, power electronic converters add complexity to the system due to their non-linear characteristics and switching behavior [13,14]. Nevertheless, the recent progressive developments of power electronics devices make them more reliable and efficient.…”

Section: Introductionmentioning

confidence: 99%

Power management optimization of hybrid power systems in electric ferries

Al-Falahi

Nimma

Jayasinghe

et al. 2018

Energy Conversion and Management

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General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.? Users may download and print one copy of any publication from the public portal for the purpose of private study or research. ? You may not further distribute the material or use it for any profit-making activity or commercial gain ? You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access to the work immediately and investigate your claim. Abstract-The integration of more-electric technologies, such as energy storage systems (ESSs) and electric propulsion, has gained attention in recent years as a promising approach to reduce fuel consumption and emissions in the maritime industry. In this context, hybrid power systems (HPSs) with direct current (DC) distribution are currently gaining a commendable interest in research and industrial applications. This paper examines the impact of using HPS with DC distribution and a battery energy storage system (BESS) over a conventional AC power system for short haul roll-on/roll-off (RORO) ferries. An electric ferry with a HPS is modeled in this study and the power management system is simulated using the Matlab/Simulink software. The result is validated using measured load profile of a ferry. The performance of the DC HPS is compared with the conventional AC system based on fuel consumption and emission reductions. An approach to estimate the fuel consumption of the diesel engine through calculation of specific fuel oil consumption (SFOC) is also presented. This study uses two optimization techniques: a classical power management method namely Rule-Based control (RB) and a meta-heuristic power management method known as Grey Wolf Optimization (GWO) to optimally manage the power sharing of the proposed HPS. Fuel consumption and emission indicators are also used to assess the performance of the two power management methods. The simulation results show that the HPS provides a 2.91 % and 7.48 % fuel consumption reduction using RB method and GWO method respectively. It is apparent from the result that the HPS has more fuel savings while running the diesel generator sets (DGs) at higher operational efficiency. It is interesting that the proposed HPS using both power management methods provided a 100 % emission reduction at berth. Finally, it was found that using a meta-heuristic optimization algorithm provides better fuel and emission reductions than a classical method.Keywords-Battery, DC power system, electric ferry, energy storage system, hybrid power system, power management.

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Next-Generation Shipboard DC Power System: Introduction Smart Grid and dc Microgrid Technologies into Maritime Electrical Netowrks

Cited by 272 publications

References 8 publications

Hierarchical Control Design for a Shipboard Power System With DC Distribution and Energy Storage Aboard Future More-Electric Ships

Hierarchical Control Design for a Shipboard Power System With DC Distribution and Energy Storage Aboard Future More-Electric Ships

Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects

Power management optimization of hybrid power systems in electric ferries

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