DER CONNECTED (April 2012) TO HV, MV AND LV

Transcript

DER CONNECTED (April 2012) TO HV, MV AND LV
ENEL DISTRIBUTION NETWORK
Uso: Pubblico
Hystorical connection trend (GW per year)
NORTH-WEST
73.300 connections
3.900 MW
NORTH-EaST
106.000 connections
4.700 MW
(0,7 GW
HV
connected)
19,5 GW
(4,5 GW HV
connected)
Non-RES
Hydro
Bio&
Waste
CENTER
2,0
0,8
1,7
Hystorical connection trend (cumulative GW)
73.800 connections
SOUTH
4.400 MW
58.400 connections
6.500 MW
technology focus
PhV
11,8
LA GESTIONE DELL’IMPATTO DEL FOTOVOLTAICO
E DELLE ALTRE RINNOVABILI NON PROGRAMMABILI SULLE RETI
0,2 GW HV
connected
(4,5 GW
HV
connected)
TOTAL ENEL DISTRIBUTION
311.500 connections
Il ruolo del Distributore, problematiche aperte, soluzioni intraprese:
i requisiti per gli impianti di GD in Italia ed in Europa, le azioni di ENEL
Wind
19.500 MW
3,2
Connections by
April 2012
Alberto Cerretti, Enel Distribuzione
[GW]
Fiera di Verona, 11 maggio 2012
SOLAREXPO, Verona 11 Maggio 2012
Uso: Pubblico
Copyright Enel Distribuzione S.p.A. Tutti i diritti riservati
2
Uso: Pubblico
TREND OF CONNECTION REQUESTS TO HV, MV AND
DER CONNECTION REQUESTS TO HV, MV AND LV
LV ENEL DISTRIBUTION NETWORK
ENEL DISTRIBUTION NETWORK
Forecast Connections (GW per year)
NORTH-WEST
17.600 requests
3.400 MW
NORTH-EAST
Producers
2012
2016
Number
420.000
900.000
26.500 requests
[MW]
[MT]
5.300 MW
N.
2009
2010
2011
2012
CENTER
Hydro
Bio&
Waste
PhV
28.300 requests
45
Forecast Connections (cumulative GW)
SOUTH
13.100 MW
1
6
32.200 requests
23 GW from PhV, Italian
PhV target
23.200 MW
[BT]
[kW]
25
TOTAL ENEL DISTRIBUTION
104.600 requests
45.000 MW
Wind
13
Increase of connection request number,
reduction of average value of single PGF rated power
Requests by
April 2012 [GW]
(of which 17,8 GW on
HV)
3
COMITOLOGY AND STANDARDIZATION
ACTIVITIES IN ITALY
Function
National
Standard
Rules for
connection to HV
and MV
distribution
networks of Users
and Generators
CEI 0-16
Rules for
connection to LV
distribution
networks of Users
and Generators
ACTIVITIES IN ITALY
Measure
Working
groups
National
Standard
Work
duration
2008-2-13
A National Standard by CEI,
made mandatory by
dedicated AEEG decisions
(Regulatory Orders) that put in
force those standards.
Representatives
of:
•Regulator
•CEI
•TSOs
•DSOs
•Manufactures
•Consultants
and plants
designers
•Users
associations
CEI 0-16
&
CEI 0-21
CEI 0-16:
from
October
2005 to
September
2008
It is a National Technical Standard
with the force of a law of the State
2011-12-23
(2012- 6 -30
complete entry
into force
for DG units)
The same as CEI 0-16
4
Valid from/for
Customers with
contractual
power over 100
kW
(over 10 MW
HV)
CEI 0-21
Uso: Pubblico
CEI 0-21:
from
October
2008 to
December
2011
Uso: Pubblico
Comments
Huge effort!
Both standards have been defined
following the same philosophy.
CEI 0-16 will be revisited
(IIIrd edition) as CEI 0-21
is much more detailed concerning
inverters, PhV ones in particular.
ACTIVITIES IN ITALY
Uso: Pubblico
To host DG from renewables and to continue operating the distribution network whith a high
quality of supply, avoiding damages to DSOs and Customers plants (including both appliances
and generators) and with no problem for human safety it’s necessary to control DG units.
Changes in DG units (and in distribution networks) are needed + a proper TLC network.
This Italian technical approach to SMART GRID is contained in CEI 0-21:
Currently, such standards are the most advanced in Europe in this direction.
CEI 0-16 would have,
anyway, to be aligned to
CEI 0-21
Regulatory
Order 84/2012
from AEEG,
8th March 2012
Annex A70
(13th March
2012)
Uso: Pubblico
Comments
CEI 0-21
Annex A70 anticipates
(alignment to A70
major cross border
by end June 2012), issues (immunity to
CEI 0-16
frequency variations,
(alignment to CEI
immunity to voltage
0-21 and A70 by
dips LVFRT), which
end 2012),
are under definition
Technical Guide
by EnTSOe.
CEI 82-25.
ACTIVITIES IN ITALY
Uso: Pubblico
Frequency: automatic commutation of IPR from new wide frequency window (47,5 Hz51,5 Hz) to old narrow frequency window (49,7 Hz-50,3 Hz) for MV faults.
The so-called “voltmetric unlock” function (ANSI CODE 81V), in case of detection of
AT LEAST ONE of the following parameters:
•Direct sequence voltage BELOW a certain value (3-phases fault presence);
•Inverse sequence voltage ABOVE a certain vale (2-phase fault presence);
•Homopolar (residual) voltage ABOVE a certain value (1-phase to earth fault)
allows the commutation of frequency window, increasing sensitivity of the IPR
reducing (NOT AVOIDING !) risks of island operation of distribution network;
Voltage: immunity with to voltage dips is required (…already included in CEI 0-21)
for DG connected to distribution networks through an electronic interface (inverters…).
Compliance to A70 of devices (IPR and inverters) is demanded, by D84, to self
declarations of Manufacturers (according to D.P.R. 445/00).
Some recent
prescriptions
concerning
PhV plants
have been
given by law
(Ministry
Decree 5th May
2011 published
on Gazzetta n.
109 12° May
2011).
CEI 0-21
Consequences on
Standards
Comments
CEI 0-21: already includes law
Other features
prescriptions (fully mandatory useful also for TSOs
from 1st January 2013) and
have been included,
major cross border issues from for instance LVFRT,
TSOs (IPR with possibility of
but consistent
“wide” frequency range).
with DSOs needs
(network
automation,
recl. cycle, etc).
ACTIVITIES IN ITALY
New
Grid Code
elements
prescriptions
taken into
consideration
D 84/2012
Uso: Pubblico
Acceptable
compromise !
Other
consequences
Annex A70
Comments about Annex A70 main innovations:
frequency issues; voltage issues
New
National
elements
Standard
taken into
consideration
ACTIVITIES IN ITALY
New
Grid Code
Consequences on
elements
prescriptions
Standards
taken into
consideration
ACTIVITIES IN ITALY
Uso: Pubblico
Comments
Besides the
application to
new Plants
(in different steps,
wrt the date of
connection to DSOs
networks !),
D84 also foresee a
massive retrofit for
MV connected
DG units
(with total rated
power ≥ 50 kW)
ACTIVITIES IN ITALY
Uso: Pubblico
Comments about Annex A70 and AEEG 84/2012
D84 also stated that DSOs have the duty to define technical elements and
details needed to complete Annex A70 (and settings of 81 V function).
ENEL, in addition, to help Manufacturers and to reduce time to have new products
compliant to A70 available on the market proposed some indicative and
not mandatory schemes for IPR, available on ENEL WEB SITE.
Each Manufacturer is free to define its own solution before the new edition of CEI 0-16
(and
definitive
version
of
CEI
0-21),
other
schemes
are
possible.
TERNA declared its availability for technical support.
Possible derogation requests shall be send to TERNA for evaluation and answer.
ENEL will perform, as requested from D84, surveillance activity with regards to the
compliance declaration (according to D.P.R 445/00), with no delay in connections.
Manufacturers are fully responsible of their products (compliance to A70 and correct
operation as IPR) and will have to refund possible damages to Customers, third parties
and ENEL plants in case of non correct operation of their products.
ACTIVITIES IN ITALY
Uso: Pubblico
Phase R
Phase S
Phase T
Reset time setti ng 1 = 2 00 ms
(cfr NOTE 1 next page)
DI 1
Example of MV
IPR compliant
to A70 (not
mandatory)
Transfer trip
59V0 : 5 V ÷2
÷÷ 5 V
0
(cfr NOTE 4 next
pag es)
Voltage
measurement
T
T
T
59.S1 : 1,10 Vn
0
T = 5 s ÷÷25 s
T = 0,00 s- 0,2 s
0
Trip ti me setting
T =3 s
27.S2: 0,10 Vn ÷÷ 0,4
Vn
Voltage
measurement
T
0
Tri p time setting
59 .S2: 1,15 Vn ÷
÷ 1 ,2
Vn
27.S1 : 0,40 Vn ÷÷ 0,85
Vn
Fault detection on MV
side
•
81> & 81< S2 :
47,5 Hz - 51,5 Hz
59V0:
detect 1Φ
Φ
Φ
earth fault
to
to
New
elements
taken into
consideration
T
0
Loss of
v oltage
CB t rip
coi l
IPR
TRIP
Trip ti me setting
T = 0,4 s ÷÷1s
T
0
EnTSOe RfG
EnTSOe DCC
Trip time setti ng
T = 0,1 s ÷÷ 5 s
81> & 81< S1:
49,7 Hz - 50,3 Hz
0
AND
• Max inverse sequence
voltage
• Min direct sequence
voltage
T
T = 1 s ÷÷ 240 s
T
0
T = 0,1 s ÷÷5 s
Tri p time setting
Reset ti me setti ng 2 = 1 80 s
(cfr NOTE 2 next page)
=
or other (not
s aturation
effect)
11
•
(optional, regulation also
possible with protected
SW setting)
PI (INTERFAC E
PROTECTION
RELAY )
Alberto Cerretti
Uso: Pubblico
COMITOLOGY, STANDARDIZATION AND
LEGISLATION ACTIVITIES AT EU LEVEL
EnTSOe CONNECTION CODES: RfG AND DCC
New
elements
taken into
consideration
Legal
value
Comments
EnTSOe RfG
EnTSOe DCC
Laws of
EU
At the end of public inquiry on RfG more than 6000 comments
were received, mostly negatives.
As a consequence EnTSOe sent a questionary to DSOs
containing question about a little more than 10 topics.
From some months EnTSOe drafting team asked for involvement
of an Eurelectric Expert Group in both codes.
Many common meetings were held. Despite this, >98% of
Eurelectric official comments to inquiry were not considered!
The content of RfG is not aligned with Annex A70, with CEI 0-21
and CEI 0-16, with D84. If applied in the way it is the current
draft, dramatic consequences on MV Italian network operation
way will arise, in particular concerning MV network automation,
possible damages to DSOs network components,
to PGFs and to users plants.
Different (anyway heavy) consequences for DSOs from the DCC.
EnTSOe
was
appointed
of this job
from ACER !
(to introduce a delay for Limited Frequency
Sensitive Mode-Overfrequency (LFSM-O)
and Limited Frequency Sensitive ModeUnderfrequency (LFSM-U) (cfr. NOTE 3
next page)
DI 3
Min
direct
seq uence
voltage (59Vi): to detect
3Φ
Φ
Φ faults
Laws of EU Being laws from EU and
not Technical
Standards, these
CODES will overcome
any Technical
Standards (both EN and
CEI) and any National
Laws
DO 1(to inverters)
Local setting to
allow inclusion of
narrow window for
81> and 81 <
protections
Max inverse sequence
voltage
(27Vd):
to
detect 2Φ
Φ
or cross
Φ
country faults
Other consequences
AND
DI 2
•
Legal
value
Comments
T = 0,2 s ÷÷0,4 s
OR
Phase R BT
Phase S BT
Phase T BT
Uso: Pubblico
LEGISLATION ACTIVITIES AT EU LEVEL
EnTSOe CONNECTION CODES: RfG AND DCC
Uso: Pubblico
TC8X WG3 Organization
LEGISLATION ACTIVITIES AT EU LEVEL:
CENELEC TC8X WG03
Uso: Pubblico
New
elements
taken into
consideration
CLC/TC 8X/
WG 03:
Requirements
for connection
of generators
to distribution
networks
CENELEC Standard
Comments
EN 50438: Requirements for the WG03 was set up in
connection
of
micro-generators April 2007.
in parallel with public low-voltage
distribution network.
EN
50438
refers
to
equipment rated up to and
prTS50549-1: Requirements for the including 16 A per phase,
connection of generators above 16 A single
or
multi
phase
per phase 230/400 V or multi phase
Part 1: Connection to the LV 230
V
(phase-to-phase
distribution system
voltage)
prTS50549-2:
In June 2011, first proposal
Requirements for the connection of for
prTS50549-1
e
-2
generators above 16 A per phase received negative votes.
Part 2: Connection to the MV By June 2012 (!) WG03
distribution system
shall propose new drafts.
LEGISLATION ACTIVITIES AT EU LEVEL:
CENELEC TC8X WG03
No “A deviation” will be possible
once approved.
Any variation as a
consequence of a law.
Strictly mandatory for all EU
Countries.
Higher legal value than AEEG
Regulation Order: CEI 0-21, CEI
0-16, D84, Annex A70 could be
cancelled partly or totally!
Both Connection Codes are
completely focused only on
Transmission system needs, with
negligible consideration of needs
of other involved stakeholders.
Completely different approach
from that adopted in Italy.
COMITOLOGY, STANDARDIZATION AND LEGISLATION
ACTIVITIES AT EU LEVEL:
MANDATE M490 “NEW SET OF STANDARDS”
Uso: Pubblico
New elements taken into
consideration
Comments
Mandate M490: New Set of
Standards
Mandate of EU, with wide stakeholders
participation, to individuate standardization
gaps and to speed comitology activity with the
aim to remove all the barriers which still slow
a much more massive penetration of
DG units from renewables.
TC8X/WG3
Requirements for connection of
generators to distribution networks
TF 1
TF 3
Frequency related/active
energy
Power quality
TF 2
TF 4
Voltage related reactive
energy / active Energy
Protection including LOM
and Reconnection
supports directly the TF 2&4
COMITOLOGY, STANDARDIZATION AND LEGISLATION
ACTIVITIES AT EU LEVEL:
MANDATE M490 “NEW SET OF STANDARDS”
Uso: Pubblico
Uso: Pubblico
TIME TABLE OF MANDATE M490
Update date
12-Dec-11
Q3
Gap N b
9
10
ID
Ge n-2,
SM-1
Ind-1
Ge n-3,
Ind-2
HB-2
G ap summ ary
Re venue me tering data harmonis ation
DLMS/COSEM v s IEC 61850/CIM
De mand-Re spons e data mode lling (S mart
use
rs)data mode lling (Smart use rs)
V
P Ps
R
1
1
8
Ge n-1
Dis-2
CIM-61850 data m odel harmonisation
Dis-4
De ve lop Cyber-se curity around IEC 62351
8
Connecting DER - e lectrote chnical rules
4
26
17
16
3
22
23
25
5
6
7
2
3
Connecting DER - e lectrote chnical functions
3
2
Dis-3
S eamles s comm unication be twee n control
centre and substation
1
Dis-1
Dis-7
F ee de r and Advance d Distribution
automation
2
Harm onize activ itie s on data transport
te chnologie s
Q1
Q2
2012
Q3
Q4
Q1
Q2
2013
Q3
Q4
Q1
Q2
2014
Q3
1
P . F ers tl
L. Guis e
JP M ennella
3
1
Othe r-1 Migrating to web-se rvices
Com-2
2011
Q4
Le ad e r
T. S chaub
1
18
Ge n-5
11-12 Ge n-4
C
3
2
SM-3
F rom S mart me tering to Smart Grid, and em obility
1
Ind-3
S mart me tering data to building sy stem
interface
1
Ind-5
Electrical installation allowing DER
installation
1
EMC-1
Im munity test me thod and re quireme nts
compatibility lev els and em is sions limits
2
EMC-2
Re view EMC and Powe r Quality le ve ls
3
EMC-3
Consider distorting current e missions from
DER equipme nt
S. V olut
L. Guis e
Thanks for your attention!
P . Lhuillier
Jos é M anuel
Inchausti
John Newbury
C. A ndersen
Ing. Alberto Cerretti
David Johnson
Enel Distribuzione S.p.A.
E . Tison
Ingegneria e Unificazione
1
1
C.
Im posim ato
[email protected]
H. Rochereau
1
C.
Im posim ato
pre-s tudy
draft
standard

DER CONNECTED (April 2012) TO HV, MV AND LV

Transcript

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