Energy management strategy for fuel cell hybrid power system using fuzzy logic and frequency decoupling methods

Trinh, Hoai-An; Truong, Hoai Vu Anh; Ahn, Kyoung Kwan

doi:10.1109/icmt53429.2021.9687291

Cited by 9 publications

(13 citation statements)

References 16 publications

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“…The proposed hybrid power topology is described in Figure 1 [37]. This hybrid system consists of a PEMFC as the primary energy source and an ESS that composes the lithium-ion BAT and SC bank.…”

Section: System Configurationmentioning

confidence: 99%

“…According to the presented studies, the fuzzy logic technique and frequency decomposition approach performed well for power distribution between the PEMFC and ESS in the hybrid system. In [37], an EMS with the combination of FLRs and the frequency decoupling method using FPFs was proposed for HPS to achieve the appropriate power distribution and maintain a stable DC output voltage. However, the controllers of DC-DC converters in HPS were designed by the trial and error method without investigating the dynamic characteristics of these converters.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the development of an EMS considering the design of the controller gains for DC-DC converters is required to achieve the overall system qualification and improve the stable DC bus voltage delivered to the load under different working conditions. Motivated by the above analyses and the significant extension of the conference paper [37], this paper proposed an energy control strategy to guarantee energy performance and fuel economy, and improve the stability of the DC bus voltage for an HPS. The main contributions of the proposed control strategy are as follows: Firstly, FLRs are designed to determine an appropriate reference PEMFC power to supply the traction load by using the SOC of BAT and the load power demand.…”

Section: Introductionmentioning

confidence: 99%

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Energy Management Strategy for PEM Fuel Cell Hybrid Power System Considering DC Bus Voltage Regulation

et al. 2022

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Developing an energy management strategy (EMS) is an important requirement to satisfy the load power demand for a proton-exchange membrane fuel cell (PEMFC) hybrid system under different working conditions. For this objective, this paper proposes an EMS to control the power distribution between the PEMFC, battery (BAT), and supercapacitor (SC) and regulate the DC bus voltage for matching the load power demand. In this strategy, fuzzy logic rules (FLRs) and low-pass filters (LPFs) are utilized to determine the reference currents for energy sources based on their dynamic response. In addition, current and voltage control loops are designed to provide the appropriate gains for compensators that can maintain a stable voltage on the DC bus. Finally, simulations are conducted in the MATLAB/Simulink environment to validate and compare the effectiveness of the proposed strategy with others. The simulation results present that the proposed EMS achieves the highest distributed power accuracy with an error of (−2.1→2.6) W, while reducing the DC bus voltage ripple by 1% under various load working conditions in comparison to the other approaches.

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Section: System Configurationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Energy Management Strategy for PEM Fuel Cell Hybrid Power System Considering DC Bus Voltage Regulation

et al. 2022

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“…Ou et al (2019) proposed a novel energy management technique based on fuzzy logic and state machine control techniques to enhance FC lifespan. He et al (2020), Tao et al (2020), andTrinh andAhn (2021) developed energy management strategies that take into account only FC slow dynamics but do not consider its possible failure, and this reduces driving security. In many research works (Thounthong et al, 2009;Hwang et al, 2012;Zhang et al, 2017b;Wieczorek and Lewandowski, 2017;Meyer et al, 2018;Xie et al, 2018;Zhang et al, 2018;Raghavaiah and Srinivasarao, 2019;Kakouche et al, 2022), one power source always performs DC bus regulation, and the second source intervenes either during regenerative braking or to help the primary source during accelerations and high power demands.…”

Section: Introductionmentioning

confidence: 99%

Secure power management strategy for direct torque controlled fuel cell/ supercapacitor electric vehicles

et al. 2022

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High reliability is recommended in hybrid electric vehicle applications. In this study, a secure power management strategy has been developed for a fuel cell—supercapacitor hybrid electric vehicle. In addition to its ability to detect the occurrence of failures in vehicle power sources, the proposed power management strategy isolates the faulty source and reconfigures the control scheme to always guarantee bus voltage stability and vehicle traction even in faulty situations. The developed power management strategy enhances vehicle comfort and prevents exhausting one source over another by allowing the fuel cell and the supercapacitor to operate at different power levels. The multiloop control scheme associated with the power sources is highly reliable since both sources can run the vehicle alone and regulate the bus voltage. Vehicle speed and torque controllers are simultaneously tuned using a particle swarm optimization algorithm. Torque and speed ripples are automatically minimized via the use of a new proposed cost function. This approach made the controller design easier and gave the designer the possibility to tradeoff between the variables to be minimized.

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“…This was performed by respectively inserting a rate limiter and a first order transfer function to restrict FC and battery output power and to produce a time delay necessary for the electrochemical reactions that occur within the FC. Recently developed power management strategies take into consideration FC slow dynamics as a protection measure to avoid the negative impacts caused by abrupt load variation as it is the case in Tao et al (2020) and Trinh and Ahn (2021). Out of the previous research works, FC protection against damages resulting from abrupt load variation is a trend subject that continues to attract researchers intention.…”

Section: Introductionmentioning

confidence: 99%

Novel coordinated power sources switching strategy for transient performance enhancement of hybrid electric vehicles

Oubelaid

Taib

Rekioua

2022

COMPEL

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Purpose The purpose of this paper is the investigation of a new coordinated switching strategy to improve the transient performance of a fuel cell (FC)- supercapacitor (SC) electric vehicle. The proposed switching strategy protects FCs from large currents drawn during abrupt power variations. Furthermore, it compensates the poor FC transient response and suppresses the transient ripples occurring during power source switching instants. Design/methodology/approach Coordinated power source switching is achieved using three different transition functions. Vehicle model is fractioned into computational and console subsystems for its simulation using real time (RT) LAB simulator. Blocs containing coordination switching strategy, power sources models and their power electronics interface are placed in the computational subsystem that will be executed, in RT, on one of real time laboratory simulator central processing unit cores. Findings Coordination switching strategy resulted in reducing transient power ripples by 90% and direct current (DC) bus voltage fluctuations by 50%. Switching through transition functions compensated the difference between FC and SC transient responses responsible for transient power ripples. Among the three proposed transition functions, linear transition function resulted in the best transient performances. Originality/value The proposed coordinated switching strategy allows the control of the switching period duration. Furthermore, it enables the choice of adequate transition functions that fit the dynamics of power sources undergoing transition. Also, the proposed switching technique is simple and does not require the knowledge of system parameters or the complex control models.

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Energy management strategy for fuel cell hybrid power system using fuzzy logic and frequency decoupling methods

Cited by 9 publications

References 16 publications

Energy Management Strategy for PEM Fuel Cell Hybrid Power System Considering DC Bus Voltage Regulation

Energy Management Strategy for PEM Fuel Cell Hybrid Power System Considering DC Bus Voltage Regulation

Secure power management strategy for direct torque controlled fuel cell/ supercapacitor electric vehicles

Novel coordinated power sources switching strategy for transient performance enhancement of hybrid electric vehicles

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