Adaptive energy management strategy and optimal sizing applied on a battery-supercapacitor based tramway

Herrera, Víctor Isaac; Milo, Aitor; Gaztañaga, Haizea; Etxeberria-Otadui, I.; Villarreal, I.; Camblong, Haritza

doi:10.1016/j.apenergy.2016.02.079

Cited by 145 publications

(58 citation statements)

References 26 publications

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“…As described in [26], the power mix α(k) can be obtained by interpolating the LR traveled distance (using look-up-tables), but here it is obtained with a time counter in the controller using a look-up-table, which was obtained in simulation. The controller was implemented on a dSPACE DS1005 and a Slave DSP PWM Generation to generate three 20 kHz symmetrical PWMs.…”

Section: Resultsmentioning

confidence: 99%

“…In the traction stage, the energy is provided by an HESS to meet the needs of the LR acceleration operation and is then transferred back to the HESS in the braking stage to improve the efficiency. As described in [26], the power demand profile of an LR route, unlike that of electric vehicles, is known at the beginning of the journey, which makes the future power demand known at each instant k in the prediction horizon. Based on this, a sliding forward window strategy in an LR traction stage is proposed.…”

Section: Proposed Sliding Forward Window Strategy In Traction Stagementioning

confidence: 99%

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An Improved Energy Management Strategy for Hybrid Energy Storage System in Light Rail Vehicles

et al. 2018

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A single-objective optimization energy management strategy (EMS) for an onboard hybrid energy storage system (HESS) for light rail (LR) vehicles is proposed. The HESS uses batteries and supercapacitors (SCs). The main objective of the proposed optimization is to reduce the battery and SC losses while maintaining the SC state of charge (SOC) within specific limits based on the distance between consecutive LR stations. To do this, a series of optimized SOC limits is used to prevent the SC from becoming exhausted prematurely instead of the standard SC SOC penalty term in the cost function. Meanwhile, a rule-based EMS (RB-EMS) is used to give the SCs charging priority over the batteries when the vehicle is braking. Moreover, a simplified method for the optimization is proposed to reduce the computational burden. Simulation and experimental results for the proposed EMS and a standard SC SOC penalty-based cost function optimization are provided to evaluate losses. As a result, it is shown that the proposed EMS, compared with standard SC SOC penalty-based cost function optimization, decreases losses and prevents the SOC from reach the discharging limits.

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Section: Resultsmentioning

confidence: 99%

Section: Proposed Sliding Forward Window Strategy In Traction Stagementioning

confidence: 99%

An Improved Energy Management Strategy for Hybrid Energy Storage System in Light Rail Vehicles

et al. 2018

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“…The optimal signal λ re f can be established using various methods. Similar issues are considered in traditional hybrid drives, in which the combustion engine is supported by an electric drive (HEV) [11][12][13][14] or in hydrostatic drives (HHV) [9,15] as well as in electric drives with hybrid energy storage system (HESS) [16].…”

Section: Description Of the Electro-hydrostatic Drive Control Systemmentioning

confidence: 99%

Study of the Energy Conversion Process in the Electro-Hydrostatic Drive of a Vehicle

et al. 2018

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Abstract:In the paper, we describe a study of an electro-hydrostatic hybrid drive of a utility van intended for city traffic. In this hybrid drive, the electric drive is periodically accompanied by hydrostatic drive, especially during acceleration and regenerative braking of the vehicle. We present a mathematical model of the hybrid drive as a set of dynamics and regulation equations of the van traveling at a given speed. On this basis, we construct a computer program which we use to simulate the processes of energy conversion in the electro-hydrostatic drive. The main goal of the numerical simulation is to assess the possibility of reducing energy intensity of the electric drive through such a support of the hydrostatic drive. The obtained results indicate that it is possible to reduce the load on elements of the electric system and, therefore, improve energy conversion.

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“…Assume that the efficiencies of DC/DC converter and motor system are 95% and 93%, respectively, which are the average efficiency values of their operating range [21].…”

Section: Other Powertrain Elementsmentioning

confidence: 99%

Multi-Objective Optimization of a Hybrid ESS Based on Optimal Energy Management Strategy for LHDs

et al. 2017

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Abstract:Energy storage systems (ESS) play an important role in the performance of mining vehicles. A hybrid ESS combining both batteries (BTs) and supercapacitors (SCs) is one of the most promising solutions. As a case study, this paper discusses the optimal hybrid ESS sizing and energy management strategy (EMS) of 14-ton underground load-haul-dump vehicles (LHDs). Three novel contributions are added to the relevant literature. First, a multi-objective optimization is formulated regarding energy consumption and the total cost of a hybrid ESS, which are the key factors of LHDs, and a battery capacity degradation model is used. During the process, dynamic programming (DP)-based EMS is employed to obtain the optimal energy consumption and hybrid ESS power profiles. Second, a 10-year life cycle cost model of a hybrid ESS for LHDs is established to calculate the total cost, including capital cost, operating cost, and replacement cost. According to the optimization results, three solutions chosen from the Pareto front are compared comprehensively, and the optimal one is selected. Finally, the optimal and battery-only options are compared quantitatively using the same objectives, and the hybrid ESS is found to be a more economical and efficient option.

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Adaptive energy management strategy and optimal sizing applied on a battery-supercapacitor based tramway

Cited by 145 publications

References 26 publications

An Improved Energy Management Strategy for Hybrid Energy Storage System in Light Rail Vehicles

An Improved Energy Management Strategy for Hybrid Energy Storage System in Light Rail Vehicles

Study of the Energy Conversion Process in the Electro-Hydrostatic Drive of a Vehicle

Multi-Objective Optimization of a Hybrid ESS Based on Optimal Energy Management Strategy for LHDs

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