IEEE Electrification Magazine - June 2016 - 26

PV
Panels
WT
ac

Private
Apartments

dc

WT
Converter

dc
dc
PV
Converter

Kitchen Appliances
(High Power Loads)

375 V
dc

Lights and
Electronics Devices
(Low Power Loads)

Private
Apartments

LVdc
Distribution
Grid

dc

48 V

Kitchen Appliances
(High Power Loads)

375 V
dc

Lights and
Electronics Devices
(Low Power Loads)

dc

48 V

+375 V
-375 V

dc
±375 V
0 V,

ac

dc

dc

dc

dc

dc

ac

Building's
Common
Facilities
G

48 V
Elevator

ESS

EV Charging
Post

Microchip

Figure 5. A schematic of an LVdc distribution system for building/residential applications.

The selected voltage for distribution is inevitably related
to the power rating of the different elements in the power
system if the same wire gauge is intended to be kept. In
consequence, after an analysis of the location and power
rating of the elements (i.e., DGs, ESSs, and loads) it becomes
apparent that the elements with similar power ratings are
mostly located together. Therefore, different voltages are
more optimal for different groups while optimizing efficiency for each scenario, safety, and compatibility with other
systems. The suitable voltage ranges would be as follows.

26

I E E E E l e c t r i f i c ati o n M agaz ine / j un e 2016

1) Low-power loads (24-48 V, <0.4 kW) mostly comprise
electronic equipment and devices (e.g., Wi-Fi routers,
phone chargers, computers, TVs, DVD players, Hi-Fi
systems and LED lights), which account for most
devices in bedrooms, living rooms, and outdoor areas.
The distribution in most of the spaces in a home,
therefore, could be performed efficiently while maximizing safety.
2) Medium power elements (230-400 V, 0.4-10 kW) usually account for the appliances in kitchens (e.g., stove,



Table of Contents for the Digital Edition of IEEE Electrification Magazine - June 2016

IEEE Electrification Magazine - June 2016 - Cover1
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IEEE Electrification Magazine - June 2016 - 1
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IEEE Electrification Magazine - June 2016 - Cover3
IEEE Electrification Magazine - June 2016 - Cover4
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http://www.nxtbook.com/nxtbooks/pes/electrification_december2018
http://www.nxtbook.com/nxtbooks/pes/electrification_september2018
http://www.nxtbook.com/nxtbooks/pes/electrification_june2018
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http://www.nxtbook.com/nxtbooks/pes/electrification_september2017
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http://www.nxtbook.com/nxtbooks/pes/electrification_september2016
http://www.nxtbook.com/nxtbooks/pes/electrification_december2015
http://www.nxtbook.com/nxtbooks/pes/electrification_march2016
http://www.nxtbook.com/nxtbooks/pes/electrification_march2015
http://www.nxtbook.com/nxtbooks/pes/electrification_june2015
http://www.nxtbook.com/nxtbooks/pes/electrification_september2015
http://www.nxtbook.com/nxtbooks/pes/electrification_march2014
http://www.nxtbook.com/nxtbooks/pes/electrification_june2014
http://www.nxtbook.com/nxtbooks/pes/electrification_september2014
http://www.nxtbook.com/nxtbooks/pes/electrification_december2014
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