A Distributed Architecture for Robust and Optimal Control of DC Microgrids

Baranwal, Mayank; Askarian, Alireza; Salapaka, Srinivasa M.; Salapaka, Murti V.

doi:10.1109/tie.2018.2840506

Cited by 59 publications

(32 citation statements)

References 16 publications

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“…Because microgrid systems are themselves, the integration of many renewable energy sources and energy storage systems, a microgrid can be designed following one of two main control topologies: centralised or decentralised. No matter which topology is selected, data flow and communications are essential for any decision-making controller [3, 4]. Conventional microgrid controllers are often based on Programmable Logic Controllers (PLC) [5], dedicated computers microgrid simulators [6] and microcontroller-based devices [7, 8].…”

Section: Introductionmentioning

confidence: 99%

Low-cost web-based Supervisory Control and Data Acquisition system for a microgrid testbed: A case study in design and implementation for academic and research applications

Vargas‐Salgado

Águila-León

Chiñas-Palacios

et al. 2019

Heliyon

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This paper presents the design and implementation of a low-cost Supervisory Control and Data Acquisition system based on a Web interface to be applied to a Hybrid Renewable Energy System (HRES) microgrid. This development will provide a reliable and low-cost control and data acquisition systems for the Renewable Energy Laboratory at Universitat Politècnica de València (LabDER-UPV) in Spain, oriented to the research on microgrid stability and energy generation. The developed low-cost SCADA operates on a microgrid that incorporates a photovoltaic array, a wind turbine, a biomass gasification plant and a battery bank as an energy storage system. Sensors and power meters for electrical parameters, such as voltage, current, frequency, power factor, power generation, and energy consumption, were processed digitally and integrated into Arduino-based devices. A master device on a Raspberry-PI board was set up to send all this information to a local database (DB), and a MySQL Web-DB linked to a Web SCADA interface, programmed in HTML5. The communications protocols include TCP/IP, I2C, SPI, and Serial communication; Arduino-based slave devices communicate with the master Raspberry-PI using NRF24L01 wireless radio frequency transceivers. Finally, a comparison between a standard SCADA against the developed Web-based SCADA system is carried out. The results of the operative tests and the cost comparison of the own-designed developed Web-SCADA system prove its reliability and low-cost, on average an 86% cheaper than a standard brandmark solution, for controlling, monitoring and data logging information, as well as for local and remote operation system when applied to the HRES microgrid testbed.

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Section: Introductionmentioning

confidence: 99%

Low-cost web-based Supervisory Control and Data Acquisition system for a microgrid testbed: A case study in design and implementation for academic and research applications

Vargas‐Salgado

Águila-León

Chiñas-Palacios

et al. 2019

Heliyon

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“…There are several studies in the literature [87][88][89] which systematically reviews the PE interface-based MG architecture with in-depth analysis of various operating conditions and system requirements.…”

Section: Mg Interconnection and Power Electronic Based System Designmentioning

confidence: 99%

A topological overview of microgrids: from maturity to the future

Erenoğlu¹,

Sancar²,

Erdinç³

et al. 2021

Turkish Journal of Electrical Engineering and Computer Sciences

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The concept of microgrid (MG) has attracted great attention from the system operators for increasing operational effectiveness as well as providing more reliable, sustainable and economic power system. In this paper, a comprehensive investigation is presented to shine new light on evaluating changes in MG operation from maturity to the future. A great deal of literature studies consisting of the traditional MG architecture, encountered challenges and proposed solutions for overcoming them are all examined in detail. Also, the impact of highly integrated renewable-based energy sources into the power system is analysed by current studies. Moreover, modern MG architecture is extensively investigated from the point of operational flexibility such as energy storage systems (ESSs), combined structure of networked-MGs (NMGs) and demand-side management (DSM). Furthermore, incorporating MG architecture as a gridsupport service in power system resiliency enhancement strategies is investigated with current literature studies. As a result of this detail investigation, it can be deduced that the power system has witnessed radically new changes and outstanding developments in both generation and consumption side. Renewable power sources have been accepted as the major mile stone in the harnessing electricity and there have a strong trend towards penetrating these types of generation units in MG structure. On the other hand, increased concerns about safety problems and challenges in MG have triggered a huge amount of discussions in the literature.

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“…In the absence of a central grid connection in many of the un(der)-electrified off-grid regions where SHS are currently deployed, the best way to achieve tier 4 or tier 5 level of electricity access is via a microgrid. In the past, rural microgrids in literature have encompassed different categorizations: centralized [16] and decentralized microgrids [17]; grid-connected [18] and islanded (or off-grid) [19]; AC [20], DC [21] and hybrid [22]; Renewable energy-based [23] and hybrid energy-based (with diesel) [24]. However, given the falling PV prices, solar-based solutions like pico-solar products and SHS have already seen a very high rate of proliferation and acceptance.…”

Section: Rural Microgridsmentioning

confidence: 99%

Quantifying the Benefits of a Solar Home System-Based DC Microgrid for Rural Electrification

et al. 2019

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Off-grid solar home systems (SHSs) currently constitute a major source of providing basic electricity needs in un(der)-electrified regions of the world, with around 73 million households having benefited from off-grid solar solutions by 2017. However, in and of itself, state-of-the-art SHSs can only provide electricity access with adequate power supply availability up to tier 2, and to some extent, tier 3 levels of the Multi-tier Framework (MTF) for measuring household electricity access. When considering system metrics of loss of load probability (LLP) and battery size, meeting the electricity needs of tiers 4 and 5 is untenable through SHSs alone. Alternatively, a bottom-up microgrid composed of interconnected SHSs is proposed. Such an approach can enable the so-called climb up the rural electrification ladder. The impact of the microgrid size on the system metrics like LLP and energy deficit is evaluated. Finally, it is found that the interconnected SHS-based microgrid can provide more than 40% and 30% gains in battery sizing for the same LLP level as compared to the standalone SHSs sizes for tiers 4 and 5 of the MTF, respectively, thus quantifying the definite gains of an SHS-based microgrid over standalone SHSs. This study paves the way for visualizing SHS-based rural DC microgrids that can not only enable electricity access to the higher tiers of the MTF with lower battery storage needs but also make use of existing SHS infrastructure, thus enabling a technologically easy climb up the rural electrification ladder.

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A Distributed Architecture for Robust and Optimal Control of DC Microgrids

Cited by 59 publications

References 16 publications

Low-cost web-based Supervisory Control and Data Acquisition system for a microgrid testbed: A case study in design and implementation for academic and research applications

Low-cost web-based Supervisory Control and Data Acquisition system for a microgrid testbed: A case study in design and implementation for academic and research applications

A topological overview of microgrids: from maturity to the future

Quantifying the Benefits of a Solar Home System-Based DC Microgrid for Rural Electrification

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