IEEE Power & Energy Magazine - May/June 2017 - 48

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Power (W)

to promote an eco-friendly lifestyle: it is characterized by a high
Active Power of Four PV Units (Solar Eclipse, 20 March 2015)
percentage of customers equipped
3,000
Legend
2,800
with PV panels (the total PV inFD01.CU04.PV
2,600
2,400
stalled capacity is about 40% of
FD02.CU30.PV
2,200
the total peak demand), and the
FD03.CU45.PV
2,000
1,800
district uses a combined heat and
FD07.CU37.PV
1,600
1,400
power plant.
1,200
The LV field demonstrator
1,000
800
consists
of the whole LV network
600
400
of an MV/LV substation, which
200
has, in total, ten LV lines and
0
feeds 294 customers, mainly
residential ones. Out of all the
network nodes, 45 (belonging to
Hour (h:m)
six out of the ten LV lines) have
been equipped with a new generafigure 5. PV output monitoring in an LV grid in the UNR demonstration site.
tion of smart meters, for a total of
60 meters that are able to monitor
in
real
time
a
wide
set
of
electric parameters for customers
work to move forward the adoption of IEEE Standard 1588
for time synchronization in embedded devices (i.e., PMUs and and PV units. Moreover, six new PV inverters also have been
other control and protection equipment) to directly support the installed for voltage and power regulations. Figure 5 represents
development, implementation, and use of IEEE/IEC 61850- an example of monitoring output of a demonstration site. For
90-5 for both data and time-synchronization data transfer. communication purposes, a broadband power line over LV
The project has also proposed an implementation of the lat- cables communication system has been used.
The MV network demonstrator consists of one MV/MV
est IEC 61850-90-5 protocol for synchrophasor data transfer,
which will be released as open source software and can be substation, three MV lines, 40 MV/LV substations, and nine
used to support interoperability and facilitate market access MV customers. Out of the three MV lines, two have been
fully automated with monitoring, control, and protection
to new integrators or hardware providers.
systems, while the third has been involved primarily in
simulations and for the LV field trial. To enable the MV
Demonstrations
automation services, a proper communication network has
been implemented by using a mix of technologies, specifiDemonstration Sites
The OST demonstration site is located on the northern cally optical fibers, broadband power lines over MV cables,
part of Bornholm Island, Denmark, in a residential area in and Wi-Fi.
The UFD demonstration site, located at its headquarthe village of Tejn. It consists of two secondary 10/0.4-kV
substations (numbers 29 and 370) and an LV network. The ters in Madrid, consists of an LV network connected to an
network consists of four LV lines with 126 customers. This MV line fed by the primary substation Puente Princesa. The
area was selected because of the relatively high percentage substation is located on the southern edge of Manzanares
of customers with heat pumps and photovoltaic (PV) panels. River, close to the street, and it shares the facilities of the
In this area, 12 smart meters have been connected using a University Corporate Company and offices of the high-voltgeneral packet radio service communication technology and age network operation.
The UFD LV demonstration site has different facilities
transmit data every 15 min with a resolution of 5 min. Additionally, the remaining 114 smart meters use a power line connected (already existing before the project) such as an
communication technology and transmit data every 2 h with amorphous PV installation (10 kW), a monocrystalline
a 5-min resolution. The data from the meters are collected PV installation (20 kW), a polycrystalline PV installation
(20 kW), a gas generator (5.5 kW), a wind turbine (3.5 kW),
once a day.
The MV network is composed of one MV/MV (60/10 kV) two three-phase EV chargers, and a meteorological station.
substation, one MV line (number 7) and 18 MV/LV (10/0.4) kV Most of these installations are smart meter connected, and
substations. Two MV/LV substations (numbers 29 and 122) all PV generators have controllable inverters.
have been fully automated with IEDs for monitoring, control, and protection. To enable MV automation, an Ethernet/ What Was Realized
IP network has been implemented using optical fibres.
In the three field demonstrations, some use cases have been
The UNR field demonstrator is located in the city of Brescia, tested. Those components were selected because, together,
Italy, in the Il Violino district. This district was recently designed they constitute two very important business cases:
may/june 2017



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - May/June 2017

IEEE Power & Energy Magazine - May/June 2017 - Cover1
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IEEE Power & Energy Magazine - May/June 2017 - Cover3
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