Comparison of three topologies and controls of a hybrid energy storage system for microgrids

Etxeberria, Aitor; Vechiu, Ionel; Camblong, Haritza; Vinassa, Jean-Michel

doi:10.1016/j.enconman.2011.10.012

Cited by 147 publications

(58 citation statements)

References 21 publications

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“…According to the adjustment rules in Table 1, in security zone (S), the modified current is equal to the calculating current. In alert zone (A), if the calculating current is larger than zero, the modified current is changed to a new value based on (20). If the calculating current is less than zero, there is no need to regulate the calculating current.…”

Section: Zone Calculating Current Modified Currentmentioning

confidence: 99%

Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations

Liu

Zhang

2016

Energies

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Abstract:With the increasing contribution of wind power plants, the reliability and security of modern power systems have become a huge challenge due to the uncertainty and intermittency of wind energy sources. In this paper, a hybrid energy storage system (HESS) consisting of battery and supercapacitor is built to smooth the power fluctuations of wind power. A power allocation strategy is proposed to give full play to the respective advantages of the two energy storage components. In the proposed strategy, the low-frequency and high-frequency components of wind power fluctuations are absorbed by battery groups and supercapacitor groups, respectively. By inhibiting the low-frequency components of supercapacitor current, the times of charging-discharging of battery groups can be significantly reduced. A DC/AC converter is applied to achieve the power exchange between the HESS and the grid. Adjustment rules for regulating state-of-charge (SOC) of energy storage elements are designed to avoid overcharge and deep discharge considering the safety and the high efficiency of the energy storage elements. Experimental results on the test platform verify the effectiveness of the proposed power allocation strategy in DC/AC converter and battery SOC adjustment rules for regulating SOC levels.

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Section: Zone Calculating Current Modified Currentmentioning

confidence: 99%

Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations

Liu

Zhang

2016

Energies

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“…Synchronously rotating frame theory has limitations when the source voltages are unbalanced and/or distorted. Dq theory is modified and referred to as "dq0 theory" to eliminate these limitations as can be found in [86], [90], [113], [130], and [157]. A new adaptive linear neuron (ADALINE) technique called MO-ADALINE was implemented in multi-output (MO) systems to track or estimate the parameters and symmetrical components.…”

Section: Classification Of Mfis Based On Control Techniquesmentioning

confidence: 99%

“…The PI-based DC-link voltage controller is simple to implement and is therefore preferred by most researchers, including [30], [32], [35], [38], [39], [55], [59], [60]- [62], [67], [75], [76], [79], [81], [92], [101]- [103], [107], [116]- [118], [120], [122]- [128], [130], [134], [136], [139], [140], [145], [146], [148], [155], [157], [160], [161], [165], [167], [171], and [184]- [186].…”

Section: Classification Of Mfis Based On Control Techniquesmentioning

confidence: 99%

Review of Multifunctional Inverter Topologies and Control Schemes Used in Distributed Generation Systems

Teke¹,

Latran²

2014

Journal of Power Electronics

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Recent developments in power electronics technology have spurred interest in the use of renewable energy sources as distributed generation (DG) generators. The key component in DG generators is a grid-connected inverter that serves as an effective interface between the renewable energy source and the utility grid. The multifunctional inverter (MFI) is special type of grid-connected inverter that has elicited much attention in recent years. MFIs not only generate power for DGs but also provide increased functionality through improved power quality and voltage and reactive power support; thus, the capability of the auxiliary service for the utility grid is improved. This paper presents a comprehensive review of the various MFI system configurations for single-phase (two-wire) and three-phase (three-or four-wire) systems and control strategies for the compensation of different power quality problems. The advances in practical applications and recent research on MFIs are presented through a review of nearly 200 papers.

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“…None of these technologies offer a clear advantage over the others. To provide the power and storage capabilities required by the microgrid, a hybrid solution is commonly adopted [2][3][4][5]. For this paper, the focus will be in ultracapacitors, but the same concepts can be applied to batteries.…”

Section: Introductionmentioning

confidence: 99%

“…Power electronic converter circuits and the corresponding control algorithms are needed in the management and application of UCs, therefore different kinds of ultracapacitor application circuits and control algorithms have been extensively studied. Reference [2] studied three kinds of UC application circuit topologies and analyzed their advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Improved Control Strategy for Microgrid Ultracapacitor Energy Storage Systems

Dou

Quan

et al. 2014

Energies

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Ultracapacitors (UCs), with their features of high power density and high current charge-discharge, have become the best choice for dynamic power compensation to improve the stability of microgrids and are increasingly being applied in microgrids. This paper presents the control of an energy storage system (ESS) based on ultracapacitors in the context of grid-connected microgrids. The ESS is composed of DC/AC and DC/DC converters tied by a dc link. An improved dynamic model for the ESS is proposed. Based on the proposed model a Proportional-Integral-Resonant (PIR) DC link voltage controller is proposed to maintain the DC link voltage through the charging-discharging control of ultracapacitors, capable of working properly under all operating conditions. An extra double frequency component is injected into the UC current by a R controller to dynamically compensate for DC instantaneous power and double frequency AC instantaneous power due to unbalanced grid conditions and disturbances. This feature maintains the DC link voltage constant under unbalanced conditions and increases the degrees of freedom of the DC/AC converter and thus facilitates the application of UCs in microgrids. Simulation and experimental results verify the effectiveness of the proposed control strategy. OPEN ACCESSEnergies 2014, 7 8096

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Comparison of three topologies and controls of a hybrid energy storage system for microgrids

Cited by 147 publications

References 21 publications

Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations

Strategy Design of Hybrid Energy Storage System for Smoothing Wind Power Fluctuations

Review of Multifunctional Inverter Topologies and Control Schemes Used in Distributed Generation Systems

Improved Control Strategy for Microgrid Ultracapacitor Energy Storage Systems

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