Analysis and Control of AC and Hybrid AC-DC Microgrid: A Review

Gupta, Pratiksha; Ansari, M. A.

doi:10.1109/peeic47157.2019.8976711

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…Therefore, the utilization of a modular converter is a better solution because the current ripple cancelation is within the wide operational range of the converter. The voltage ripple calculation is performed according to Equations ( 4) and (5), respectively [17].…”

Section: Parametermentioning

confidence: 99%

“…For example, a wind generator uses an AC/DC isolated PFC converter; solar panels use MPPT boost converters; and ESS is mostly equipped by bidirectional buck/boost topology to deliver energy into DC distribution bus. The DC bus is connected to different types of load, which may require power in the form of DC or AC and can be achieved by using DC/DC buck or DC/AC converters [5,6]. Decentralized energy sources can also be considered in the context of electric vehicle batteries, which can also serve as an energy storage system if needed.…”

Section: Introductionmentioning

confidence: 99%

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From Non-Modular to Modular Concept of Bidirectional Buck/Boost Converter for Microgrid Applications

et al. 2020

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In this article, the practical comparison of the operational performance of the modular (or multiport) and non-modular bidirectional buck/boost (bi-BB) DC/DC converter is realized. The main contribution of the work is the evaluation of both concepts based on various aspects, considering the qualitative indicators of the systems relevant for microgrids. Here, we discuss efficiency, electrical properties, costs, and component values. At the same time, critical comparisons are provided for converters based on SiC and GaN technology (non-modular high-voltage SiC-based dual-interleaved converter and modular low-voltage GaN-based). The concepts are specific with their operating frequency, whereby for each solution, the switching frequency is different and directly influences relevant components. The efficiency, overall system volume, output voltage ripple, and input current ripple are compared mutually between both concepts with a dependency on power delivery. These factors, together with overall volume and costs, are very important considering modern converters for microgrid systems. The summary of pros and cons is realized for each of the proposed converters, whereby the evaluation criterion is reflected within the electrical properties targeting microgrid application.

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Section: Parametermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

From Non-Modular to Modular Concept of Bidirectional Buck/Boost Converter for Microgrid Applications

et al. 2020

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“…Some devices can also be connected directly to a DC microgrid if they are adapted to do so. The sources of renewable energy in the network are amorphous photovoltaic panels and, in the future, we can also consider electric car batteries as a source/storage of energy [16]. From the abovementioned description, it is evident that smart grids and their future concepts represent complex systems composed of many power semiconductor systems.…”

Section: Introductionmentioning

confidence: 99%

System Level Simulation of Microgrid Power Electronic Systems

et al. 2021

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In this paper, we describe a procedure for designing an accurate simulation model using a price-wised linear approach referred to as the power semiconductor converters of a DC microgrid concept. Initially, the selection of topologies of individual power stage blocs are identified. Due to the requirements for verifying the accuracy of the simulation model, physical samples of power converters are realized with a power ratio of 1:10. The focus was on optimization of operational parameters such as real-time behavior (variable waveforms within a time domain), efficiency, and the voltage/current ripples. The approach was compared to real-time operation and efficiency performance was evaluated showing the accuracy and suitability of the presented approach. The results show the potential for developing complex smart grid simulation models, with a high level of accuracy, and thus the possibility to investigate various operational scenarios and the impact of power converter characteristics on the performance of a smart gird. Two possible operational scenarios of the proposed smart grid concept are evaluated and demonstrate that an accurate hardware-in-the-loop (HIL) system can be designed.

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“…Primary Control: The primary controllers are usually implemented on each DG in a decentralized way [40] - [43]. The main objectives are frequency and voltage restoration as well as optimal power sharing.…”

Section: The Control Strategy Of Ac Mgsmentioning

confidence: 99%

Design of secondary controllers for microgrids with the consideration of communication issues

Lian¹

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Analysis and Control of AC and Hybrid AC-DC Microgrid: A Review

Cited by 5 publications

References 37 publications

From Non-Modular to Modular Concept of Bidirectional Buck/Boost Converter for Microgrid Applications

From Non-Modular to Modular Concept of Bidirectional Buck/Boost Converter for Microgrid Applications

System Level Simulation of Microgrid Power Electronic Systems

Design of secondary controllers for microgrids with the consideration of communication issues

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