Increase the rate of utilization of Residential photovoltaic generation by EV charge-discharge control

Osawa, M.; Yoshimi, K.; Yamashita, Daisuke; Yokoyama, Ryuichi; Masuda, Takahiko; Kondou, Hitoshi; Hirota, Toshio

doi:10.1109/isgt-asia.2012.6303134

Cited by 8 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the simulations they showed that a battery capacity equaling the daily electricity consumption of the house results in a self-consumption of almost 90%. Osawa et al [20] investigated a 3.4 kWp PV system together with a 24 kWh lithium-ion vehicle battery given a typical residential load profile in Tokyo, Japan. They concluded that the battery has the potential to increase self-consumption by 38 percentage points, from 41% without battery to 79% with a battery.…”

Section: Introductionmentioning

confidence: 99%

Solar photovoltaic-battery systems in Swedish households – Self-consumption and self-sufficiency

et al. 2016

View full text Add to dashboard Cite

This work investigates the extent to which domestic energy storage, in the form of batteries, can increase the self-consumption of electricity generated by a photovoltaic (PV) installation. The work uses real-world household energy consumption data (measurements) as the input to a household energy consumption model. The model maximizes household self-sufficiency, by minimizing the amount of electricity purchased from the grid, and thereby also maximizing the level of selfconsumption of PV electricity, i.e., the amount of PV-generated electricity that is consumed in-house. This is done for different combinations of PV installation sizes (measured in array-to-load ratio; ALR: ratio of the PV capacity to the average annual electric load of a household) and battery capacities for different categories of single-family dwellings in Sweden (i.e., northern latitudes). The modeling includes approximately 2000 households (buildings). The results show that the use of batteries with capacities within the investigated range, i.e., 0.15-100 kWh, can increase the level of self-consumption by a practical maximum of 20-50 percentage points (depending on the load profile of the household) compared to not using a battery. As an example, for a household with an annual electricity consumption of 20 MWh and a PV installation of 7 kWp,, this range in increased self-consumption of PV-generated electricity requires battery capacities in the range of 15-24 kWh (actual usable capacity), depending on the load profile of the specific household. The practical maximum range is determined by the seasonality of PV generation at Swedish latitudes, i.e., higher levels of increased self-consumption are possible, however, it would require substantially larger batteries than the up to 100 kWh investigated in this work. Thus, any additional marginal increment in battery capacity beyond the range investigated results in a low level of utilization and poor additional value. Furthermore, our results reveal that when a battery is used to store PVgenerated electricity in-house, self-sufficiency increases (as compared to not using a battery) by 12.5-30 percentage points for the upper range of the investigated PV capacities (ALR of 6).

show abstract

Section: Introductionmentioning

confidence: 99%

Solar photovoltaic-battery systems in Swedish households – Self-consumption and self-sufficiency

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The papers come from Germany [20,52,57,58,66,67,85], Sweden [20,60,66,82], Spain [73,75], Italy [77], Switzerland [85] and Japan [60]. The last paper is the only one from outside Europe, but since Asia now dominates new PV installations, as presented in the EPIA Market Report 2013 [1], it is likely to change in the future.…”

Section: Improved Self-consumptionmentioning

confidence: 99%

Photovoltaic self-consumption in buildings: A review

et al. 2015

View full text Add to dashboard Cite

“…Figure 2.4 shows the LOL (loss-of-life) experienced at a particular distribution transformer, for change in stochastic load and PV generation Fig. 2.3 The rate of PV utilization [32] units. It is evident from the figure that rooftop PV coupled with PEVs can reduce LOL of the distribution transformer.…”

Section: Mitigating the Impact Of Pev Charging On The Distribution Symentioning

confidence: 99%

“…A case study is presented, which demonstrates that, by regulating the charging profiles of the PEVs, the variance of load power can be dramatically reduced. Integration of residential PV system with PEVs is studied in [32]. A residential PV system was simulated for various charging schemes of PEVs and the results are shown in Fig.…”

Section: Mitigating the Impact Of Pev Charging On The Distribution Symentioning

confidence: 99%

Control and Management of PV Integrated Charging Facilities for PEVs

Goli

Shireen

2014

Plug in Electric Vehicles in Smart Grids

View full text Add to dashboard Cite

The ongoing research in the field of plug-in electric vehicles (PEVs) and the growing global awareness for a pollution free environment, will lead to an increase in the number of PEVs in the near future. The proliferation of these PEVs will add stress to the already overloaded power grid creating new challenges for the distribution network. To mitigate this issue several researchers have proposed the idea of charging PEVs using renewables coupled with smart charging strategies. This chapter reviews the current literature on the state of the art infrastructure proposed for PEV charging facilities integrated with photovoltaic system. The proposed control algorithms, various smart charging techniques and different power electronic topologies for photovoltaic charging facilities (PCFs) are reviewed. Studies assessing the ability of photovoltaic charging stations to minimize the loading on distribution transformers are assessed. Finally, a simple and unique energy management algorithm for a PV based workplace charging facility based on dc link voltage sensing is presented. The power needed to charge the plug-in electric vehicles comes from grid-connected photovoltaic (PV) generation or the utility or both. The efficacy of the proposed algorithm is validated through simulation and experimental results.

show abstract

Increase the rate of utilization of Residential photovoltaic generation by EV charge-discharge control

Cited by 8 publications

References 3 publications

Solar photovoltaic-battery systems in Swedish households – Self-consumption and self-sufficiency

Solar photovoltaic-battery systems in Swedish households – Self-consumption and self-sufficiency

Photovoltaic self-consumption in buildings: A review

Control and Management of PV Integrated Charging Facilities for PEVs

Contact Info

Product

Resources

About