A Novel Reconfigurable Microgrid Architecture With Renewable Energy Sources and Storage

Thale, Sushil; Wandhare, Rupesh G.; Agarwal, Vivek

doi:10.1109/tia.2014.2350083

Cited by 132 publications

(45 citation statements)

References 17 publications

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“…The dc conduction losses are calculated with the squared value of the dc current and the dc resistance as (1). The dc resistance is measured with the impedance analyzer and the value for the charge and discharge intervals is 3.5 mΩ and 81.2 mΩ, respectively.…”

Section: Loss Distribution Analysismentioning

confidence: 99%

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Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Mira¹,

Knott²,

Andersen³

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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In locations far from the equator achieving high conversion efficiency in low-power solar systems is challenging due to low solar irradiance levels. This paper presents a high efficiency three-port converter (TPC) for light-to-light (LtL) applications where no direct solar conversion is required. The separation of the power flows allows to replace the conventional solution of two cascaded converters into a single structure with shared components. A loss distribution analysis of the proposed structure is performed, which shows very good match with the experimental results. A prototype of the TPC demonstrates high efficiency in both power flow paths. At low irradiation level, the photovoltaic to battery stage shows a peak efficiency of 99.1 % at at 1.5 W output power and the LED driver stage presents a peak efficiency of 97.3 % at 3 W output power.

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Section: Loss Distribution Analysismentioning

confidence: 99%

“…Furthermore, due to the ability to generate off-grid electricity, sustainable energy systems have attracted research interest in the last decades [1]. Switched-mode power supplies (SMPS) are a key part of the integration of renewable energy systems due to the importance of high energy conversion [2].…”

Section: Introductionmentioning

confidence: 99%

Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Mira¹,

Knott²,

Andersen³

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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“…These are particularly necessary, for wind farms have spread mainly in remote areas, where loads are low and the grid is quite weak. Where the existing connections are not able to accommodate all the energy produced from wind power plants, the latter have to be shut down to avoid lines' overload [10,11]. As concerns grid stability, the issue arises from the fact that a certain level of minimum conventional generation always has to be guaranteed, in order to provide the necessary ancillary services or for technical constraints of the working power…”

Section: Introductionmentioning

confidence: 99%

Improvement of Wind Energy Production through HVDC Systems

et al. 2017

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Variable and non-programmable resources, such as solar and wind, have undergone a stunning growth in recent years and are likely to gain even more importance in the future. Their strong presence in the national electricity mix has created issues in many countries regarding the secure operation of the power system. In order to guarantee the stability of the system, several TSOs have resorted to wind energy curtailment, which represents a waste of clean energy and an economic loss. In order to analyze this issue, a model of the Italian power system was developed, a program able to simulate the electricity dispatching mechanism. The model was, then, used to evaluate possible solutions to reduce wind curtailment. In particular, a proposal for the construction of an HVDC line linking Southern and Northern Italy was studied.

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“…Two architectures for load shedding, centralized and decentralized, have been investigated [4]. In a centralized architecture, system components are controlled by a central control system, which can lead to optimal utilization of MG resources.…”

Section: Introductionmentioning

confidence: 99%

Optimal Load Shedding for Maximizing Satisfaction in an Islanded Microgrid

2017

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Abstract:A microgrid (MG) is a discrete energy system that can operate either in parallel with or independently from a main power grid. It is designed to enhance reliability, carbon emission reduction, diversification of energy sources, and cost reduction. When a power fault occurs in a grid, an MG operates in an islanded manner from the grid and protects its power generations and loads from disturbance by means of intelligent load shedding. A load shedding is a control procedure that results in autonomous decrease of the power demands of loads in an MG. In this study, we propose a load shedding algorithm for the optimization problem to maximize the satisfaction of system components. The proposed algorithm preferentially assigns the power to the subdemand with a high preference to maximize the satisfaction of power consumers. In addition, the algorithm assigns the power to maximize the power sale and minimize the power surplus for satisfaction of power suppliers. To verify the performance of our algorithm, we implement a multi-agent system (MAS) on top of a conventional development framework and assess the algorithm's adaptability, satisfaction metric, and running time.

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A Novel Reconfigurable Microgrid Architecture With Renewable Energy Sources and Storage

Cited by 132 publications

References 17 publications

Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Loss distribution analysis of a three-port converter for low-power stand-alone light-to-light systems

Improvement of Wind Energy Production through HVDC Systems

Optimal Load Shedding for Maximizing Satisfaction in an Islanded Microgrid

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