Optimized efficiency of all-electric ships by dc hybrid power systems

Zahedi, Bijan; Norum, Lars; Ludvigsen, Kristine Bruun

doi:10.1016/j.jpowsour.2014.01.031

Cited by 168 publications

(100 citation statements)

References 29 publications

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“…In this paper, a fuel efficiency evaluation model is established using the operational data of a four-stroke engine with ISO standard rating of 360 kW (330 kW for electrical generation). In this paper, quadratic fit method used in [35] is employed to evaluate the fuel efficiency in real-time simulation, as shown in Fig. 16.…”

Section: Appendix: Fuel Efficiency Evaluation Modelmentioning

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.

172

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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: Appendix: Fuel Efficiency Evaluation Modelmentioning

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.

172

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show abstract

“…Numerous publications by authors from all over the world can be found in recent literature which focus on economic issues of applications of propulsion systems on inland and sea-going vessels and their effect on the environment [12] [17]. More and more attention is also paid to noise emission by watercraft units [18] [19].…”

Section: Introductionmentioning

confidence: 99%

Energy Efficient and Environmentally Friendly Hybrid Conversion of Inland Passenger Vessel

Litwin

Leśniewski

Kowalski

2017

Polish Maritime Research

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“…With regard to a shipboard PMS design and control, extensive research works have been initiated recently and many researchers around the world have elaborated on the issues involved [8][9][10][11][12][13][14][15][16][17][18][19][20]. For example, in [8] the economic operation of a vessel equipped with PVs and ESSs is studied for different power supply architectures, and analytic formulas are reported for calculating the system marginal cost, taking into account the energy and power balances for a given time period.…”

Section: Introductionmentioning

confidence: 99%

“…Although the proposed method could effectively operate the system close to its optimal condition, the computational efficiency of the algorithm in terms of run-time is not satisfactory. Other power management strategies for shipboard systems are also outlined in related literature using mathematical programming [14][15][16][17][18][19], agent-based approaches [20][21][22], and hierarchical control methodologies [23].…”

Section: Introductionmentioning

confidence: 99%

Smart Shipboard Power System Operation and Management

2016

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During recent years, optimal electrification of isolated offshore systems has become increasingly important and received extensive attention from the maritime industry. Especially with the introduction of electric propulsion, which has led to a total electrification of shipboard power systems known as all-electric ships (AESs), the need for more cost-effective and emission-aware solutions is augmented. Such onboard systems are prone to sudden load variations due to the changing weather conditions as well as mission profile, thus they require effective power management systems (PMSs) to operate optimally under different working conditions. In this paper, coordinated optimal power management at the supply/demand side of a given AES is studied with regard to different objectives and related technical/environmental constraints. The optimal power management problem is formulated as a mixed-integer nonlinear programming (MINLP) model and is solved using a metaheuristic algorithm. To show the effectiveness and applicability of the proposed PMS, several test scenarios are implemented and related simulation results are analyzed and compared to those from conventional methods.

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Optimized efficiency of all-electric ships by dc hybrid power systems

Cited by 168 publications

References 29 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

Energy Efficient and Environmentally Friendly Hybrid Conversion of Inland Passenger Vessel

Smart Shipboard Power System Operation and Management

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