Improved vehicle-for-grid (iV4G) mode: Novel operation mode for EVs battery chargers in smart grids

Monteiro, Vítor; Pinto, J. G.; Afonso, João L.

doi:10.1016/j.ijepes.2019.03.049

Cited by 37 publications

(20 citation statements)

References 31 publications

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“…Based on the strategic introduction of EVs with bidirectional power operation (G2V and V2G) and bidirectional communication, new perspectives can be offered for EV users and for the power management (PM) in the perspective of smart homes and smart grids 12 . Moreover, besides the bidirectional power operation, other possibilities of operation can be addressed by the EVs as a contribution for improving the reliable operation of smart homes and smart grids, as demonstrated in References 13 and 14.…”

Section: Introductionmentioning

confidence: 99%

Smart home power management system for electric vehicle battery charger and electrical appliance control

Figueiredo

Monteiro

Ferreira

et al. 2021

Int Trans Electr Energ Syst

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Summary This article presents a power management system (PMS) designed for smart homes aiming to deal with the new challenges imposed by the proliferation of plug‐in electric vehicles (EVs) and their coexistence with other residential electrical appliances. The PMS is based on a hybrid wireless network architecture composed by a local hub/gateway and several Bluetooth Low Energy (BLE) and Wi‐Fi sensor/actuator devices. These wireless devices are used to transfer information inside the smart home using the Message Queuing Telemetry Transport (MQTT) protocol. Based on the proposed solution, the current consumption of the EV battery charger and other residential electrical appliances are dynamically monitored and controlled by using a configurable algorithm, ensuring that the total current consumption does not cause the tripping of the home circuit breaker. An Android client application allows the user to monitor and configure the system operation in real‐time, a developed Wi‐Fi smart plug permits to measure the RMS values of current of the connected electrical appliance and change its state of operation remotely, and an EV battery charger may be controlled in terms of operating power according to set‐points received from the Android client application. Experimental tests are used to evaluate the quality of service provided by the developed smart home platform in terms of communication delay and reliability. An experimental validation for different conditions of operation of the proposed smart home PMS concerning the power operation of the EV battery charger with the proposed control algorithm is also presented.

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Section: Introductionmentioning

confidence: 99%

Smart home power management system for electric vehicle battery charger and electrical appliance control

Figueiredo

Monteiro

Ferreira

et al. 2021

Int Trans Electr Energ Syst

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“…In addition, as presented in [6] and [7], to mitigate the power quality problems, the SAPF can also be used for interfacing renewable energy sources with the power grid. Moreover, as presented in [8], in [9] and in [10], the functionalities of SAPF can be incorporated in electric vehicle battery chargers, representing a relevant contribution for the future smart grids, where the electric vehicle can act as a dynamic controllable load in the power grid.…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of a Current-Source Converter with Reduced Dc-link Operating as Shunt Active Power Filter

Oliveira¹,

Barros²,

Afonso³

et al. 2021

EAI Endorsed Transactions on Energy Web

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Nowadays, the majority of electronic equipment behaves as nonlinear loads, introducing power quality problems into the power grid, namely, current harmonics and low power factor. These problems contribute to reduce the efficiency of the power grid and can cause malfunctioning of sensitive loads connected to the power grid. Therefore, it is important to develop power electronics solutions capable to mitigate these power quality problems. In this context, this paper presents a novel single-phase shunt active power filter (SAPF) based on a current-source converter, where the key differencing factor, when compared with the conventional approach, is the reduced dc-link. As the proposed topology requires a reduced dc-link, it represents a relevant advantage, requiring a less bulky inductance in the dc-link, reducing the losses, cost, and volume. The proposed SAPF with reduced dc-link is introduced in detail along the paper, and a comprehensive comparison with the conventional SAPF is established based on computer simulations. Besides, an experimental validation is carried out with a developed laboratory prototype, validating the main advantages of the proposed SAPF with reduced dc-link.

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“…Nowadays, mainly due to the environmental concerns, the paradigm of smart grids is emerging toward to optimize the energy production and consumption [1][2][3], as well as to contextualize smart cities within smart grids concerning societal impacts [4]. Accordingly, technologies of power electronics are absolutely indispensable for different sectors [5][6][7], including future distribution grids [8], renewables [9], power quality issues in hybrid ac/dc microgrids [10], concerns about protection [11], and electric mobility [12][13][14][15][16]. Regarding dc-dc topologies, extensive reviews about the conventional dc-dc converters are offered in [17] and [18], but to control, at the same time, the input current and the output current, the conventional topologies are not properly flexible.…”

Section: Introductionmentioning

confidence: 99%

A Novel Topology of Multilevel Bidirectional and Symmetrical Split-Pi Converter

Monteiro

Oliveira

Rodrigues

et al. 2020

2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

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The paradigm of smart grids has encouraged new developments of power electronics converters, for instance, in the perspective of renewables and electric mobility applications. Aligned with this perspective, this paper proposes a novel topology of a multilevel bidirectional and symmetrical (MBS) split-pi dc-dc converter. As a central distinguishing feature, it operates with three voltage levels in both dc sides (0, vdc/2, vdc), meaning that the voltage stress in each semiconductor is reduced when compared with the conventional split-pi converters, and it operates with controlled variables (voltage and current) based on the interleaved principle of operation, although it is not an interleaved split-pi converter. As demonstrated along the paper, the MBS split-pi converter can be controlled with current or voltage feedback in any of the dc interfaces, while the common dc-link voltage is controlled by the dc interface where the source is connected. The adopted current and voltage control schemes, as well as the pulse-width modulation, are presented and comprehensively explained. The validation is presented for the main operation modes, where it is possible to verify the claimed distinguishing features of the proposed MBS split-pi converter.

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Improved vehicle-for-grid (iV4G) mode: Novel operation mode for EVs battery chargers in smart grids

Cited by 37 publications

References 31 publications

Smart home power management system for electric vehicle battery charger and electrical appliance control

Smart home power management system for electric vehicle battery charger and electrical appliance control

Experimental Validation of a Current-Source Converter with Reduced Dc-link Operating as Shunt Active Power Filter

A Novel Topology of Multilevel Bidirectional and Symmetrical Split-Pi Converter

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