Considerations on Communication Infrastructures for Cooperative Operation of Smart Inverters

Alonso, Augusto Matheus dos Santos; Afonso, Leonardo Carlos; Brandão, Danilo I.; Tedeschi, Elisabetta; Marafão, Fernando Pinhabel

doi:10.1109/cobep/spec44138.2019.9065382

Cited by 5 publications

(2 citation statements)

References 28 publications

(59 reference statements)

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“…Considering that a MG may contain a large number of small units, manual operation can become unfeasible and automatic dispatch coordinated by a central unit, such as a MG controller, may be necessary. The reaction time of secondary control is typically faster than that in traditional ACPSs, from a couple of minutes in a large system with high penetration of CIGs (ENTSO-E, 2019) to a couple of seconds in a MG (dos Santos Alonso et al, 2019;.…”

Section: Frequency Control In Ac Power Systemsmentioning

confidence: 99%

Sizing of Hybrid Energy Storage Systems for Inertial and Primary Frequency Control

Alves¹,

Mota²,

Tedeschi³

2021

Front. Energy Res.

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The exponential rise of renewable energy sources and microgrids brings about the challenge of guaranteeing frequency stability in low-inertia grids through the use of energy storage systems. This paper reviews the frequency response of an ac power system, highlighting its different time scales and control actions. Moreover, it pinpoints main distinctions among high-inertia interconnected systems relying on synchronous machines and low-inertia systems with high penetration of converter-interfaced generation. Grounded on these concepts and with a set of assumptions, it derives algebraic equations to rate an energy storage system providing inertial and primary control. The equations are independent of the energy storage technology, robust to system nonlinearities, and rely on parameters that are typically defined by system operators, industry standards, or network codes. Using these results, the authors provide a step-by-step procedure to size the main components of a converter-interfaced hybrid energy storage system. Finally, a case study of a wind-powered oil and gas platform in the North Sea demonstrates with numerical examples how the proposed methodology 1) can be applied in a practical problem and 2) allows the system designer to take advantage of different technologies and set specific requirements for each storage device and converter according to the type of frequency control provided.

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Section: Frequency Control In Ac Power Systemsmentioning

confidence: 99%

Sizing of Hybrid Energy Storage Systems for Inertial and Primary Frequency Control

Alves¹,

Mota²,

Tedeschi³

2021

Front. Energy Res.

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“…The PV systems can be used to inject active power to the grid (traditional operation) or they can be used to perform ancillary services (multifunctional operation). In this scenario, multifunctional PV inverters have been strongly discussed in the literature as an alternative to improve the grid power quality [2], [3], [4], [5]. In this operation mode, the PV inverter provides ancillary services when it is operating below its nominal active power specification.…”

Section: Introductionmentioning

confidence: 99%

Lifetime Evaluation of a Three-Phase Photovoltaic Inverter During Harmonic Current Compensation

Boaventura¹,

Pereira²,

Cupertino³

2022

Eletrônica de Potência

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The Photovoltaic (PV) inverters operating with ancillary service capability have been discussed as a solution to improve the power quality of the electrical grid. In this context, the PV inverters can be used to provide services such as Harmonic Current Compensation (HCC). However, the analysis of how much this extra functionality can affect the reliability of the PV inverter is necessary. Thus, this work analyzes the lifetime of a threephase PV inverter taking into account the degradation of the semiconductor devices (IGBTs and diodes) and the dc-link capacitors. The compensation of the 5 th and 7 th harmonic current components (and their combination) are considered. The lifetime evaluation is performed based on an mission profiles of solar irradiance, ambient temperature, harmonic current amplitude and phaseangle. Based on the results of the adopted case study, the HCC operation increases the lifetime consumption of the IGBTs, diodes and dc-link capacitors. Compared to traditional PV inverter operation, The results reveals a reduction in the predicted B 10 lifetime of 3.4 and 4.1 years, when the PV inverter compensates 5th and 7th harmonic, respectively. The reduction is even more significant (5.6 years) when the 5 th and 7 th harmonic component are simultaneously compensated.

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Interoperability in Microgrids to Improve Energy Access: A Systematic Review

Suryani,

Sulaeman,

Rosyid

et al. 2024

IEEE Access

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Considerations on Communication Infrastructures for Cooperative Operation of Smart Inverters

Cited by 5 publications

References 28 publications

Sizing of Hybrid Energy Storage Systems for Inertial and Primary Frequency Control

Sizing of Hybrid Energy Storage Systems for Inertial and Primary Frequency Control

Lifetime Evaluation of a Three-Phase Photovoltaic Inverter During Harmonic Current Compensation

Interoperability in Microgrids to Improve Energy Access: A Systematic Review

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