Hierarchical Management Control Based on Equivalent Fitting Circle and Equivalent Energy Consumption Method for Multiple Fuel Cells Hybrid Power System

This paper describes our best practices related to hybrid power system (HPS) development with a focus on the prototyping phase. Based on the main development goals of our security robot, 24 h continuous operation on a single charge as a top priority, the HPS specifications were developed in the previous phase. For long-duration missions, batteries are hybridized with hydrogen fuel cells. By hybridization, the practical issues of fuel cells can be addressed such as lack of durability and low power density. With the developed specifications of the HPS, its components were acquired and installed to build a prototype. Using an electronic load coupled with a charge-discharge system controller, the constructed prototype was tested, discovering the maximum output power (850 W) that the fuel cell can sustain for 24 h. To further increase the energy density of the HPS, its structure was converted to a plug-in hybrid. With the developed HPS simulator, the converted HPS was simulated, predicting an extended hours of operation (2.07 h) based on the larger battery (7S12P) over the widest SOC window (90%). The plug-in HPS prototype was integrated into the security robot. On a dedicated chassis dynamometer, the integrated prototype was tested, demonstrating its capability to continuously operate the security robot for 24 h.

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A parallel modular computing approach to real‐time simulation of multiple fuel cells hybrid power system

International Journal of Energy Research ◽

10.1002/er.4515 ◽

2019 ◽

Vol 43 (10) ◽

pp. 5266-5283 ◽

Cited By ~ 3

Author(s):

Liyan Zhang ◽

Jia Liu ◽

Weiwei Qi ◽

Qihong Chen ◽

Rong Long ◽

...

Keyword(s):

Fuel Cells ◽

Power System ◽

Real Time ◽

Hybrid Power System ◽

Real Time Simulation ◽

Hybrid Power ◽

Time Simulation ◽

Computing Approach

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Optimal Control for Hybrid Energy Storage Electric Vehicle to Achieve Energy Saving Using Dynamic Programming Approach

Energies ◽

10.3390/en12040588 ◽

2019 ◽

Vol 12 (4) ◽

pp. 588 ◽

Cited By ~ 3

Author(s):

Chaofeng Pan ◽

Yanyan Liang ◽

Long Chen ◽

Liao Chen

Keyword(s):

Dynamic Programming ◽

Energy Consumption ◽

Power System ◽

Energy Saving ◽

Electric Vehicle ◽

System Efficiency ◽

Rule Based ◽

Hybrid Power System ◽

Hybrid Power ◽

Simulation Results

In this paper, the efficiency characteristics of battery, super capacitor (SC), direct current (DC)-DC converter and electric motor in a hybrid power system of an electric vehicle (EV) are analyzed. In addition, the optimal efficiency model of the hybrid power system is proposed based on the hybrid power system component’s models. A rule-based strategy is then proposed based on the projection partition of composite power system efficiency, so it has strong adaptive adjustment ability. Additionally. the simulation results under the New European Driving Cycle (NEDC) condition show that the efficiency of rule-based strategy is higher than that of single power system. Furthermore, in order to explore the maximum energy-saving potential of hybrid power electric vehicles, a dynamic programming (DP) optimization method is proposed on the basis of the establishment of the whole hybrid power system, which takes into account various energy consumption factors of the whole system. Compared to the battery-only EV based on simulation results, the hybrid power system controlled by rule-based strategy can decrease energy consumption by 13.4% in line with the NEDC condition, while the power-split strategy derived from the DP approach can reduce energy consumption by 17.6%. The results show that compared with rule-based strategy, the optimized DP strategy has higher system efficiency and lower energy consumption.

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Robust energy management strategy based on non-linear cascade control of fuel cells-super capacitors hybrid power system

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.05.250 ◽

2020 ◽

Vol 45 (43) ◽

pp. 23254-23274

Author(s):

Daoud Rezzak ◽

Nasserdine Boudjerda

Keyword(s):

Fuel Cells ◽

Power System ◽

Energy Management ◽

Management Strategy ◽

Cascade Control ◽

Energy Management Strategy ◽

Hybrid Power System ◽

Linear Cascade ◽

Hybrid Power ◽

Non Linear

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APPLICATIONS – PORTABLE | Micro Hybrid Power System: Fuel Cells/Capacitors

Encyclopedia of Electrochemical Power Sources ◽

10.1016/b978-044452745-5.00892-3 ◽

2009 ◽

pp. 1-12

Author(s):

T. Momma ◽

H. Nara ◽

T. Osaka

Keyword(s):

Fuel Cells ◽

Power System ◽

Hybrid Power System ◽

Hybrid Power

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Parametric Analysis of Hybrid MCFC Micro Gas Turbine System

Volume 5: Turbo Expo 2005 ◽

10.1115/gt2005-68655 ◽

2005 ◽

Author(s):

Hongliang Hao ◽

Huisheng Zhang ◽

Shilie Weng ◽

Ming Su

Keyword(s):

Power Generation ◽

Fuel Cells ◽

Power System ◽

Gas Turbine ◽

Molten Carbonate Fuel Cell ◽

Design Parameters ◽

Molten Carbonate ◽

Hybrid Power System ◽

Micro Gas Turbine ◽

Hybrid Power

Fuel cells have been revealed to be a very attractive power generation system, promising highly efficient electricity generation and very low environmental impact. The integration of micro turbines and high-temperature fuel cells has been proposed in recent years as an extremely efficient solution for power generation. A molten carbonate fuel cell / micro gas turbine (MCFC/MGT) hybrid power system has theoretically demonstrated that it can achieve higher thermal efficiency than other conventional power generation systems. To understand operation characteristics of the MCFC/MGT hybrid power system, it is essential to analyze influence of operating and design parameters on its performance. Based on an existing 50KW MCFC stack, a steady-state thermodynamic model for MCFC/MGT hybrid power system is developed on the IPSEpro simulation platform and applied to a performance analysis. The characteristics under off-design and design condition for hybrid power system were also analyzed.

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