MPC-informed ECMS based real-time power management strategy for hybrid electric ship

Xie, Peilin; Tan, Sen; Guerrero, Josep M.; Vasquez, Juan C.

doi:10.1016/j.egyr.2021.02.013

Cited by 39 publications

(18 citation statements)

References 10 publications

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“…Multiple sailing conditions and sea states are tested under two different cases: short-time sailings with constant speed under different sea states; and a long-time voyage including departure, accelerating, navigation and arriving. In addition, to evaluate the effectiveness of the proposed PMS scheme, traditional used LR-based method as in [10]- [13], and the previously used ECMS method as in [14] are used as benchmarks.…”

Section: Simulations and Results Analysismentioning

confidence: 99%

“…To address the aforementioned problem of highly fluctuated propulsion loads, efforts can be made including: designing thruster controllers for power smoothing [8], [9], and hybrid using of energy storage system (HESS) [10]- [14] for power fluctuation compensation. Among the latter publications, different hybrid ESS use are introduced and recommended.…”

Section: A State Of the Artmentioning

confidence: 99%

“…Corresponding real-time power management strategies developed in the aforementioned papers all show good performance in allocating power between hybrid energy resources. Some are targeted to minimize the electrical losses [10]- [13] while some minimize the fuel consumption [14]- [16]. However, one of the major concerns and also the drawback of the real-time PMS is the lack of long-term perspectives.…”

Section: A State Of the Artmentioning

confidence: 99%

See 2 more Smart Citations

A Real-Time Power Management Strategy for Hybrid Electrical Ships Under Highly Fluctuated Propulsion Loads

Xie

Tan

Bazmohammadi

et al. 2023

IEEE Systems Journal

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Section: Simulations and Results Analysismentioning

confidence: 99%

Section: A State Of the Artmentioning

confidence: 99%

Section: A State Of the Artmentioning

confidence: 99%

See 1 more Smart Citation

A Real-Time Power Management Strategy for Hybrid Electrical Ships Under Highly Fluctuated Propulsion Loads

Xie

Tan

Bazmohammadi

et al. 2023

IEEE Systems Journal

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“…The study is presented as a stage of correction of PVEEMP in terms of overcoming the new safety problem of an autonomous EPS, which does not contain only technical solutions, that is, at the stage of correction of SEEI. As regards PUEES, work [21] analyzes the stability of EPS with converters on the DC-Link line, and then two linear control approaches are proposed to stabilize the power voltage as part of SEEI improvement. In [22], the ambiguous nature of programming approaches, as an element of design solutions used to analyze the stability and control of EPS, is indicated as a self-sufficient problem.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Optimization of the control system for an electric power system operating on a constant-power hyperbole

Budashko

Sandler

Shevchenko

2022

EEJET

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For an electric power system (EPS) of the combined propulsion complex (CPC), working on a constant-power hyperbola (CPH), the strategy of managing power distribution between propulsion electric motors and own needs consumers has been improved. The study reported here aimed to reduce fluctuations in current consumption and load by optimizing voltage controllers and the rotation frequency of generator assemblies (GA). The system of EPS GA voltage and frequency stabilization was synthesized by determining, in the system of equations, the dynamics of the values of EPS links' time constants and the coefficients that correspond to control parameters. To define the characteristics of the control signals from the regulators of EPS GA rotation frequency and excitation voltage, the laws that control the speed and excitation current were calculated. After sampling the coefficients of the GA speed control regulator, the tasks for the excitation voltage controller were determined. The methodology of data acquisition was applied on the basis of a correlation between the EPS characteristics and the experimental characteristics of GA. The system of EPS dynamics equations was optimized in accordance with the structure and settings of the optimal controller and the probability of a situational error by using Spearman's rank correlation coefficient. The optimization has made it possible to reduce the likelihood of a situational error during the synchronization of GA and enable the stable operation of GA close to the mode of operation on CPH. The power controller was tested under the mode of changing the load of own needs with the power levels of EPS on CPH in the range of 50‒100 % of the rated power. The range of deviations of the current consumed with an enabled GA rotation controller was 10 % of the average value. The range of EPS power deviations with the power controller turned on was 5 %.

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“…Due to the hydrodynamic interactions and wave excitations, thrust loss and torque fluctuation are considered as inherent components of a ship propulsion system [4]. One of the prominent sources of the power fluctuations reported in the literature is the variations arising from the in-and-out-of-water effect [5]. In severe to extreme conditions, the sea elevation and ship motion result in large movements of thrusters relative to the water [6].…”

Section: Introductionmentioning

confidence: 99%

Power Management Strategies Based on Propellers Speed Control in Waves for Mitigating Power Fluctuations of Ships

Nasiri

Peyghami

Parniani

et al. 2022

IEEE Trans. Transp. Electrific.

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This paper proposes two novel Power ManagementStrategies (PMS) to enhance the electrical power quality in twinscrew All-Electric Ships (AES) during vessel-wave encountering. Soothing PMS (SPMS) focuses on mitigating power fluctuations of the propulsion system since it has significant impacts on the power system in extreme conditions. For this purpose, the PMS modifies propellers speed based on the in-and-out-of-water effect Loss Factor (LF) in wave collisions. This method does not require typical equipment, such as Energy Storage Systems (ESS), to moderate the variations. Hence, it decreases the ESS demand capacity and maintenance costs at the design and operation levels. An integrated ship model is introduced to determine this loss factor in waves thoroughly. Furthermore, due to the propeller dynamics in speed altering, an adaptive delay is embedded in SPMS to improve its efficiency, and an Advanced Soothing PMS (ASPMS) is developed. To determine this varying adaptive delay during an operation, a straightforward algorithm is proposed that does not impose the PMS to compute complex differential equations. Simulations reveal that both PMSs soothe the propulsion system power fluctuations and remarkably reduce the power system frequency and voltage variations. Meanwhile, the ASPMS surpasses the SPMS in terms of improving the power quality.

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MPC-informed ECMS based real-time power management strategy for hybrid electric ship

Cited by 39 publications

References 10 publications

A Real-Time Power Management Strategy for Hybrid Electrical Ships Under Highly Fluctuated Propulsion Loads

A Real-Time Power Management Strategy for Hybrid Electrical Ships Under Highly Fluctuated Propulsion Loads

Optimization of the control system for an electric power system operating on a constant-power hyperbole

Power Management Strategies Based on Propellers Speed Control in Waves for Mitigating Power Fluctuations of Ships

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