Stability analysis of converter-connected battery energy storage systems in the grid

Bazargan, Damon; Filizadeh, Shaahin; Gole, A.M.

doi:10.1109/pesgm.2015.7285635

Cited by 15 publications

(20 citation statements)

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“…One drawback of this PCS in regard of flexibility is that because of its high cost -each power train comprises a dedicated front-end inverter-, designers may consider the reduction of the number of power trains thus configuring large battery packs to fulfill the energy storage requirements. The variations of the voltage and internal impedance of battery packs with large number of cells in series and in parallel can affect the stability of the PCS in connection with the external grid, as addressed in [86], [87].…”

Section: F Discussion On Flexibilitymentioning

confidence: 99%

A Comparison of Power Conversion Systems for Modular Battery-Based Energy Storage Systems

et al. 2020

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A modular battery-based energy storage system is composed by several battery packs distributed among different modules or parts of a power conversion system (PCS). The design of such PCS can be diverse attending to different criteria such as reliability, efficiency, fault tolerance, compactness and flexibility. The present paper proposes a quantitative and qualitative comparison among the most widely proposed PCSs for modular battery-based energy storage systems in literature. The obtained results confirm the high performance of those PCSs based on the parallel connection of different modules to a single point of common coupling, also identifying those based on modular multilevel cascaded converters as promising concepts according to the assumptions of the present paper. INDEX TERMS Hybrid energy storage systems, batteries, power electronics.

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Section: F Discussion On Flexibilitymentioning

confidence: 99%

A Comparison of Power Conversion Systems for Modular Battery-Based Energy Storage Systems

et al. 2020

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“…Energy storage is another solution for frequency support in low inertia systems. Many different types of energy storage have been developed to address the challenge of frequency control in converter-based systems such as pumped hydro storage, thermal storage, flywheel, battery, and compressed air [45,46]. The storage can be incorporated in the frequency control services to rapidly activate for frequency control during frequency disturbances.…”

Section: Energy Storagementioning

confidence: 99%

Challenges and Research Opportunities of Frequency Control in Low Inertia Systems

Nguyen¹,

Yang²,

Nielsen³

et al. 2019

E3S Web Conf.

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The dominance of converter-based generation in power systems results in a significant reduction of the number of conventional power plants. The transition introduces major challenges of substituting synchronous generators and their ancillary dynamic control services with converter-interfaced generations whose control and interaction with the grid have not been fully understood. This paper presents challenges and research opportunities of frequency control of such low inertia systems. Challenges of frequency control in converter-based systems and a review of power systems facing the challenges caused by low inertia conditions around the world are first investigated. Then, a summary of the solutions that have been proposed for frequency control in low inertia systems is analysed. The paper will conclude with research opportunities for frequency control in low inertia systems, which require further investigation for converterinterfaced systems.

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“…The grid-connected inverters are extensively applied in electrical grids ranging from renewable energy systems [1], [2], energy storage systems [3], [4] to electric railway systems [5], [6] to improve the capacity and reliability of systems. However, the large-scale adoption of inverters may cause interactive resonant current and resonance problems [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

Inherent Interaction Analysis for Harmonic Oscillations in the Multi-Paralleled Grid-Connected Inverter System Using a Sum Type Criterion: Global Admittance (GA)

Cao

Wang²,

Kang

et al. 2020

IEEE Access

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With the extensive use of power electronics converters, harmonic oscillation issues in the multiparalleled grid-connected inverter system have drawn much attention. Apart from the stability analysis using the impedance-based stability analysis method, the interaction analysis is aimed at revealing the changing process of the system state under the variation of some parameters such as the grid impendence, the number of grid-connected inverters and the control parameter of the inverter current control, etc. In this paper, after comparing the ratio type stability criterion and the sum type stability criterion, the interaction analysis using global admittance is presented in two frequency-domain dimensions. It shows that the harmonic instability depends on both the imaginary part of global admittance which determines the appearance of the resonance point and the real part of global admittance which reflects the property of such resonance point. The essence of this approach is to reveal the appearance of the resonance point and its influence on the system stability. The inherent changing rules of the resonance point are illustrated in the following typical occasions: different grid impendence, different number of grid-connected inverters and different control parameters of the current control loop. Finally, detailed simulations and experimental results validate the effectiveness of the proposed approach. INDEX TERMS Harmonic oscillations, stability criterion, interaction analysis, global admittance, resonance point, point of common coupling (PCC).

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Stability analysis of converter-connected battery energy storage systems in the grid

Cited by 15 publications

References 0 publications

A Comparison of Power Conversion Systems for Modular Battery-Based Energy Storage Systems

A Comparison of Power Conversion Systems for Modular Battery-Based Energy Storage Systems

Challenges and Research Opportunities of Frequency Control in Low Inertia Systems

Inherent Interaction Analysis for Harmonic Oscillations in the Multi-Paralleled Grid-Connected Inverter System Using a Sum Type Criterion: Global Admittance (GA)

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