Modelling and Optimization in Microgrids

Porsinger, Tobias; Janík, P.; Leonowicz, Zbigniew; Goňo, Radomír

doi:10.3390/en10040523

Cited by 26 publications

(13 citation statements)

References 16 publications

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“…Hence, those virtual output-impedance loops can solve this problem. Therefore, the output impedance becomes another control variable; (3) This method is load-dependent frequency deviation, which implies a phase deviation between the output-voltage frequency of the UPS system and the input voltage provided by the grid; (4) The DC bus voltage deviation increases with the load due to the Droop action; (5) The sources are scheduled in groups rather than as individual sources, and the state change depends on the sources power minimum and maximum limits.…”

Section: Dbs Logicmentioning

confidence: 99%

“…Some electric and thermal loads, a photovoltaic (PV) rooftop plant, a building automation system and electrical and thermal storage systems have been installed. The pilot site is integrated into the concept of a Smart Community of microgrids that is several areas interconnected from the point of view of energy production and consumption [5].…”

Section: Introductionmentioning

confidence: 99%

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A Real-Life Application of a Smart User Network

et al. 2018

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Smart Community microgrids could help to improve overall energy efficiency reducing transmission and distribution losses and allowing the implementation of optimal load control and resource dispatching. In this context, the authors have proposed the realization of DC smart microgrids. They are considered as a future prospective according to the increase of DC loads and DC output type distribution energy sources such as Photovoltaic and energy storage systems. In this paper, a DC smart microgrid, called Smart User Network, realized in a real-life application as a part of pilot site under the national research project PON04_00146 Smart cities and Communities and Social innovation named “Reti, Edifici, Strade Nuovi Obiettivi Virtuosi per l’Ambiente e l’Energia” (RES NOVAE), is illustrated. The Smart User Network, is managed by a distributed and decentralized control logic, the DC Bus Signaling, which allows the converters to operate independently of each other according to a decentralized logic. It guarantees the reliability, the continuity and the quality of supply, optimizing the use of energy produced by renewable energy sources, also in stand-alone configuration. The most significant experimental results obtained both in grid-connected and stand-alone configuration are presented and discussed.

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Section: Dbs Logicmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Real-Life Application of a Smart User Network

et al. 2018

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“…According to that, the P2P control architecture introduced in Section 2 seems to be a good infrastructure for the exchange of data and control actions among the DERs of microgrids. To create an operational peer able to run in the communication network of a smart microgrid, several software layers need to be built [57,84,85]. The proposed communication architecture is based on a structured decentralized peer-to-peer overlay network and it is depicted in Figure 6.…”

Section: Proposal Of a Layered Communication Architecture And An Applmentioning

confidence: 99%

A Novel Locality Algorithm and Peer-to-Peer Communication Infrastructure for Optimizing Network Performance in Smart Microgrids

et al. 2017

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Peer-to-Peer (P2P) overlay communications networks have emerged as a new paradigm for implementing distributed services in microgrids due to their potential benefits: they are robust, scalable, fault-tolerant, and they can route messages even when a large number of nodes are frequently entering or leaving the network. However, current P2P systems have been mainly developed for file sharing or cycle sharing applications where the processes of searching and managing resources are not optimized. Locality algorithms have gained a lot of attention due to their potential to provide an optimized path to groups with similar interests for routing messages in order to achieve better network performance. This paper develops a fully functional decentralized communication architecture with a new P2P locality algorithm and a specific protocol for monitoring and control of microgrids. Experimental results show that the proposed locality algorithm reduces the number of lookup messages and the lookup delay time. Moreover, the proposed communication architecture heavily depends of the lookup used algorithm as well as the placement of the communication layers within the architecture. Experimental results will show that the proposed techniques meet the network requirements of smart microgrids, even with a large number of nodes on stream.

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“…The above-mentioned activities lead to a reduction of the overall costs of the company in its functioning [9]. An increasing number of water company utilities attach great importance to more responsible energy management [10], which is related, among other things, to the need for more efficient and reliable management of the drinking water supply system [11]. Energy issues have been important priorities for the development of socio-economic policies of most countries in the world for a number of years.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Water Supply Systems Management for Energy Efficiency: A Case Study

et al. 2021

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A prerequisite for achieving high energy efficiency of water supply systems (understood as using less energy to perform the same task) is the appropriate selection of all elements and their rational use. Energy consumption in water supply systems (WSS) is closely connected with water demand. Especially in the case of oversized water supply systems for which consumers’ water demand is at least 50% less than previously planned and flow velocity in some parts of the system is below 0.01 m·s−1, this problem of excessive energy consumption can be observed. In the literature, it is difficult to find descriptions and methods of energy management for such a case. The purpose of this study was both an evaluation of the current demand of an oversized WSS and a preliminary technical analysis of the possibility for energy saving. Solutions are presented that resulted in improvements in energy management, thus increasing energy efficiency. The conducted analyses indicate the wide use of numerical, hydraulic models, among others, for the needs of the sustainable oversize water supply systems management in order to improve energy efficiency. Those simulations only give energy consumption results as a first step in the process of decision-making for the modernization process, in which investment costs should be taken into account as a second step. Thus, this paper emphasizes the crucial role of hydraulic models as a good analytical tool used in decision support systems (DSS), especially for large, oversized water supply systems.

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Modelling and Optimization in Microgrids

Cited by 26 publications

References 16 publications

A Real-Life Application of a Smart User Network

A Real-Life Application of a Smart User Network

A Novel Locality Algorithm and Peer-to-Peer Communication Infrastructure for Optimizing Network Performance in Smart Microgrids

Sustainable Water Supply Systems Management for Energy Efficiency: A Case Study

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