A Smart Power Electronic Multiconverter for the Residential Sector

Guerrero-Martínez, Miguel Ángel; Milanés‐Montero, María Isabel; Barrero‐González, Fermín; Miñambres‐Marcos, Víctor; Romero‐Cadaval, Enrique; Romera, Eva González

doi:10.3390/s17061217

Cited by 16 publications

(8 citation statements)

References 33 publications

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“…Paper [8] reports PVS with SB and four DC converters with a common link: the PV voltage level; two bidirectional converters of DC into DC for SB and a supercapacitor; a grid inverter. The selection of the maximum power of PV is provided by the МРРТ controller.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Improved control of energy consumption by a photovoltaic system equipped with a storage device to meet the needs of a local facility

Shavolkin

Shvedchykova

Jasim

2021

EEJET

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+This paper has considered improving the management of energy consumption by a photovoltaic system with a storage device for a local object connected to the network. The aim of the study is to reduce expenditures when paying for electricity consumed from the network, when loading an object, independent of the time of year, and to eliminate energy generation to the grid. An energy generation control algorithm has been improved whereby the state of battery charge during the day is based on a forecast. That could reduce electricity consumption at night with better utilization of rechargeable battery and photovoltaic battery power during the day. It is proposed to use autonomous operation by disconnecting from the network during peak tariff hours and during the day with enough energy generation by a photovoltaic battery. This would ensure the normal functioning of an object in the event of a possible deterioration in the quality of voltage in the network while reducing the loss of energy in the inverter. Predictive control of the expected battery charge at the next checkpoint (at 0.5 hours or less between control points) has been proposed. A control system structure has been developed whereby a rechargeable battery current is set depending on an operational mode, the tariff zone, and the projected generation by a photovoltaic battery while reducing the modulation frequency under an autonomous mode. In this case, the modes are switched and the structure is changed taking into consideration the state of battery charge. Simulation in the daily cycle has shown the possibility of reducing the cost of electricity consumed from the network by 1.7‒8 times at two or three tariff rates. Simulation of electromagnetic processes in the system confirms acceptable regulation indicators when switching the structure, as well as a decrease in the energy loss in an inverter under an autonomous mode by up to 40 %

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Improved control of energy consumption by a photovoltaic system equipped with a storage device to meet the needs of a local facility

Shavolkin

Shvedchykova

Jasim

2021

EEJET

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“…These features would require the use of a microcontroller with a floating-point unit. The practical feasibility is justified by taking Energies 2019, 12, 3971 9 of 18 into consideration authors' previous works [26,36], where strategies with similar computational requirements were experimentally implemented and tested.…”

Section: Global Control Systemmentioning

confidence: 99%

Control Strategy for Electric Vehicle Charging Station Power Converters with Active Functions

et al. 2019

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Based on the assumption that vehicles served by petrol stations will be replaced by Electric Vehicles (EV) in the future, EV public charging station facilities, with off-board fast chargers, will be progressively built. The power demand of these installations is expected to cause great impact on the grid, not only in terms of peak power demanded but also in terms of power quality, because most battery chargers behave as non-linear loads. This paper presents the proposal of a novel comprehensive global control strategy for the power electronic converters associated with bidirectional three-phase EV off-board fast chargers. The Charging Station facility Energy Management System (CS-EMS) sends to each individual fast charger the active and reactive power setpoints. Besides, in case the charger has available capacity, it is assigned to compensate a fraction of the harmonic current demanded by other loads at the charging facility. The proposed approach works well under distorted and unbalanced grid voltages. Its implementation results in improvement in the power quality of each fast charger, which contributes to improvement in the power quality at the charging station facility level, which can even provide ancillary services to the distribution network. Simulation tests are conducted, using a 100 kW power electronic converter model, under different load and grid conditions, to validate the effectiveness and the applicability of the proposed control strategy.

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“…A key advantage of smart controllers is the capacity to perform more efficiently and the capacity of demand-side management (DSM) [22]. For consumers, such an option could mean cost reductions on the energy bill, especially in regions where ToU tariffs are already enforced.…”

Section: Introductionmentioning

confidence: 99%

Model Predictive Control Home Energy Management and Optimization Strategy with Demand Response

et al. 2018

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Abstract:The growing demand for electricity is a challenge for the electricity sector as it not only involves the search for new sources of energy, but also the increase of generation capacity of the existing electrical infrastructure and the need to upgrade the existing grid. Therefore, new ways to reduce the consumption of energy are necessary to be implemented. When comparing an average house with an energy efficient house, it is possible to reduce annual energy bills up to 40%. Homeowners and tenants should consider developing an energy conservation plan in their homes. This is both an ecological and economically rational action. With this goal in mind, the need for the energy optimization arises. However, this has to be made by ensuring a fair level of comfort in the household, which in turn spawns a few control challenges. In this paper, the ON/OFF, proportional-integral-derivative (PID) and Model Predictive Control (MPC) control methods of an air conditioning (AC) of a room are compared. The model of the house of this study has a PV domestic generation. The recorded climacteric data for this case study are for Évora, a pilot Portuguese city in an ongoing demand response (DR) project. Six Time-of-Use (ToU) electricity rates are studied and compared during a whole week of summer, typically with very high temperatures for this period of the year. The overall weekly expense of each studied tariff option is compared for every control method and in the end the optimal solution is reached.

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A Smart Power Electronic Multiconverter for the Residential Sector

Cited by 16 publications

References 33 publications

Improved control of energy consumption by a photovoltaic system equipped with a storage device to meet the needs of a local facility

Improved control of energy consumption by a photovoltaic system equipped with a storage device to meet the needs of a local facility

Control Strategy for Electric Vehicle Charging Station Power Converters with Active Functions

Model Predictive Control Home Energy Management and Optimization Strategy with Demand Response

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