Optimal battery sizing considering degradation for renewable energy integration

Torre, S. de la; González-González, José M.; Aguado, José A.; Martín, Sebastián

doi:10.1049/iet-rpg.2018.5489

Cited by 27 publications

(8 citation statements)

References 24 publications

(41 reference statements)

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“…However, in many studies only fixed parameters are used for ageing and no actual ageing model is applied. Studies, that use an actual ageing model for battery ageing and in which Li-ion batteries are applied, are [9,12,14,16,21,26,40,[49][50][51][52]. While the aforementioned studies also consider the economics of the systems, Sandelic et al [53] and Beltran et al [54] also use an aging model for LIB, but their studies are mainly aimed at identifying and maximizing the lifetime of the battery and power electronics.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of Efficiency, Aging and Charging Strategy on the Economic Viability and Dimensioning of Photovoltaic Home Storage Systems

et al. 2021

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PV in combination with Li-ion storage systems can make a major contribution to the energy transition. However, large-scale application will only take place when the systems are economically viable. The profitability of such a system is not only influenced by the investment costs and economic framework conditions, but also by the technical parameters of the storage systems. The paper presents a methodology for the simulation and sizing of PV home storage systems that takes into account the efficiency of the storage systems (AC, DC standby consumption and peripheral consumption, battery efficiency and inverter efficiency), the aging of the components (cyclic and calendar battery aging and PV degradation), and the intelligence of the charging strategy. The developed methodology can be applied to all regions. In this paper, a sensitivity analysis of the influence of the mentioned technical parameters on the dimensioning and profitability of a PV home storage is performed. The calculation is done for Germany. Especially, battery aging, battery inverter efficiency and a charging strategy to avoid calendar aging have a decisive influence. While optimization of most other technical parameters only leads to a cost reduction of 1–3%, more efficient inverters can save up to 5%. Even higher cost reductions (more than 20%) can only be achieved using batteries that age less, especially batteries that are less sensitive to calendar aging. In individual cases, a small improvement in the efficiency of the storage system can also lead to higher costs. This is for example the case when smaller batteries are combined with a large PV system and the battery is used more due to the higher efficiency. This results in faster ageing and thus earlier replacement of the battery. In addition, the paper includes a detailed literature overview on PV home storage system sizing and simulation.

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Section: Literature Reviewmentioning

confidence: 99%

Influence of Efficiency, Aging and Charging Strategy on the Economic Viability and Dimensioning of Photovoltaic Home Storage Systems

et al. 2021

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“…Considering the operational life of ESS, the depth of discharge (DoD) should to be limited [25].

{SOC}_{i, \min} \leq {SOC}_{i, t} \leq {SOC}_{i, \max}

where

{SOC}_{i, \min}

is the SOC corresponding to the maximum DoD,

{SOC}_{i, \max}

is the upper limit of charging that is fully‐charged battery energy

E_{N i}^{ESS}

.…”

Section: Structure and Mathematical Model Of Honeycomb‐like Microgrid Clustermentioning

confidence: 99%

Emergency reserve constrained optimal allocation of energy storage in a novel honeycomb‐like microgrid cluster with volatile renewable energy resources

Zhu

Liu

et al. 2021

IET Generation Trans & Dist

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With the increasing penetration of large‐scale distributed renewable energies, the electricity distribution network is growing more complex with challenges brought by the intermittency and uncertainty of renewable energies. Microgrid (MG), one of feasible solutions to integrating renewable energies, has shortages because of limited capacity. Therefore, MG cluster (MGC) was proposed as an improved solution. To efficiently and friendly integrate renewable energies, a novel honeycomb‐like MG cluster (H‐MGC) is proposed in this paper. Considering the uncertainty of renewable energies, a robust optimisation method of the siting and sizing of energy storage system (ESS) constrained by emergency reserve is proposed. Combining the column‐and‐constraint generation algorithm and big‐M method, the proposed optimisation model is decomposed into mixed integer second‐order cone programming master problem and sub‐problems, which are alternately solved. Based on the optimal results of study case, the siting and sizing results of ESS are analysed, as well as the operating characteristics of H‐MGC. Compared to existing MGC system, the proposed H‐MGC has a more flexible operation mode. The related costs of ESS are reduced, and the operational life is relatively extended, under the condition that the emergency reserve of system is satisfied.

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“…However, for their potential applications in future traction systems, the change rate of renewable energy is much slower than that of traction loads. Besides, batteries can also be integrated into renewable generation to further reduce output power fluctuations [42]. Thus, the transient MPPT process can be ignored, and renewable generation can be modelled as a controlled current source with a reference signal of

P_{R E} / u_{d c}

.…”

Section: Simulated System Operationmentioning

confidence: 99%

Novel double‐layer DC/AC railway traction power supply system with renewable integration

Zhang

et al. 2020

IET Renewable Power Generation

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Back-to-back converter based railway traction power supply system (TPSS) can eliminate neutral sections in the traction side and improve power quality in the grid side, but it still has some drawbacks such as low reliability, difficulty in accepting largecapacity renewable energy, and power mismatches. In this paper, a double-layer DC/AC TPSS with renewable integration is proposed to address these challenges and to improve system performance. The proposed topology breaks the limit of back-toback structure and enables more flexible free energy flow. A top-down system design method is proposed in this paper. Firstly, the characteristics of the proposed TPSS for integration with renewable power are described and compared with the traditional back-to-back topology. Secondly, a DC droop controller and a AC droop controller are designed for DC layer grid and AC layer grid respectively to control the power flow in each layer. The traditional AC droop control is based on the inductive transmission impedance, but the resistance of traction transmission line cannot be ignored. Thus a modified droop control strategy with the consideration of line resistance is also proposed in this paper. Subsequently, the voltage control strategy for the single MMC converter is designed to track the reference signal from the upper droop controller. Finally, a general double-layer DC/AC TPSS is designed from bottom to top, and the simulation results confirm that the proposed TPSS with renewable integration is capable of delivering desirable performance.

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Optimal battery sizing considering degradation for renewable energy integration

Cited by 27 publications

References 24 publications

Influence of Efficiency, Aging and Charging Strategy on the Economic Viability and Dimensioning of Photovoltaic Home Storage Systems

Influence of Efficiency, Aging and Charging Strategy on the Economic Viability and Dimensioning of Photovoltaic Home Storage Systems

Emergency reserve constrained optimal allocation of energy storage in a novel honeycomb‐like microgrid cluster with volatile renewable energy resources

Novel double‐layer DC/AC railway traction power supply system with renewable integration

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