Implementation and control of Switched Boost Inverer for DC nanogrid applications

Adda, Ravindranath; Ray, Olive; Mishra, Santanu; Joshi, Avinash

doi:10.1109/ecce.2012.6342289

Cited by 14 publications

(8 citation statements)

References 17 publications

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“…It is capable of operating in both grid connected and islanded modes [64][65][66][67][68][69][70][71][72][73][74]. Although in literature nanogrid seems to favor a DC-based power structure [75,76], it is capable of operating as DC as well as AC and is even able to work as a hybrid structure [77]. Both the nanogrid and microgrid often consist of renewable energy source [78] and any type of load [79].…”

Section: International Journal Of Photoenergymentioning

confidence: 99%

Variable Load Demand Scheme for Hybrid AC/DC Nanogrid

Rauf

Kalair

Khan

2020

International Journal of Photoenergy

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This paper addresses the use of nanogrid technology in resolving the issue of blanket load shedding for domestic consumers. This is accomplished by using different load management techniques and load classification and utilizing maximum solar energy. The inclusion of DC-based load in basic load and DC inverter load in regular load and scheduling of the burst load during the hours of maximum solar PV generation bring novelty in this work. The term “nanogrid” as a power structure remains ambiguous in various publications so far. An effort has been done in this paper to present a concise definition of nanogrid. Demand side load management is one of the key features of nanogrid, which enables end users to know major characteristics about their energy consumption during peak and off-peak hours. A microgrid option with nanogrid facility results in a more reliable system with overall improvement in efficiency and reduction in carbon emission. PV plants produce DC power; when used directly, the loss will automatically be minimized to 16%. The AC/DC hybrid nanogrid exhibits 63% more efficiency as compared to AC-only nanogrid and nearly 18% more efficiency as compared to DC-only nanogrid. Smart load shifting smoothens the demand curve 54% more adequately than during conventional load shifting. Simulation results show that real-time pricing is more economical than flat rate tariff for a house without DG, whereas flat rate results are more economical when DG are involved in nanogrids. 12.67%-21.46% saving is achieved if only flat rates are used for DG in nanogrid instead of real-time pricing.

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Section: International Journal Of Photoenergymentioning

confidence: 99%

Variable Load Demand Scheme for Hybrid AC/DC Nanogrid

Rauf

Kalair

Khan

2020

International Journal of Photoenergy

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“…An input solar source (Vp) is interfaced to a DC distribution bus (Vd) using a DCIDC converter. It uses a DC based distribution with various loads connected to it through dedicated point-of-Ioad converters [1][2][3][4]. The idea is basically inspired from computer power system.…”

Section: Imentioning

confidence: 99%

“…In [1], a 380 V based distribution is used and in [2][3][4] a 144 V based distribution is used in realizing the nanogrid. The choice of voltage level is dependent on the power level of the nanogrid and available area for renewable installation (size of a house, etc.).…”

Section: Imentioning

confidence: 99%

A Multi-Input Single-Control (MISC) battery charger for DC nanogrids

Arun

Nag

Mishra

2013

2013 IEEE ECCE Asia Downunder

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Renewable power and storage have made DC based domestic distribution an attractive alternative for future homes. Due to low power rating of the system, it is very important to reduce number of converter stages and use the generated energy efficiently. Therefore, instead of using different dedicated converters from various uni-directional renewable sources, this paper proposes a single stage boost converter with multiple inputs that can efficiently decimate generated energy to charge a battery. This philosophy of interfacing renewable sources will have commercial value when some of the additional sources are not large enough to mandate a dedicated converter. The converter is called Multi-Input-Single Control (MISC) converter. The converter varies the duty cycle based on optimum operation of the largest power source (e.g., MPP in case of solar panel), where as the other smaller unidirectional sources act as slave. As per the characteristic of the source, the proposed converter works under various operating modes which are discussed in this paper. The concept is validated using a laboratory prototype for different operating scenarios with a solar panel as a master source working under MPPT.

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“…It follows that the acoutput voltage has a low value that renders it unsuitable for most of the home appliances all over the world. Several contributions were introduced to improve its performance such as in [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%