Ancillary services in the distribution network

39 Pages·2015·2.97 MB·English

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Ancillary services in
the distribution network: Where are the opportunities?
ZEC 2015
10. December 2015, Zagreb, Croatia
Assoc. Prof. Andrej Gubina
Head, Laboratory of Energy Policy
Faculty of Electrical Engineering
University of Ljubljana, Slovenia
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INCREASE Project
• Title: Increasing the penetration of renewable energy
sources in the distribution grid by
developing control strategies and using
ancillary services
• FP7, Integrated Project with 10 partners, 5 countries
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Contents
1. Power system deregulation and markets
2. Market roles
3. Ancillary Services: definitions
4. Ancillary Services in distribution system
/ Electrical Engineering Department /
www1.0p‐1r2o‐2j0e15ct-increase.eu PAGE 3
Electrical Energy Systems Group
Electric Power System
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Power system transition
• Existing (blue) and new (red) assets and energy flows
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Source: USEF
Power System
Regulated - Deregulated
t
h Generation
g
i
s
r
e
v Transmission
o
y
r
o
t
Distribution
a
l
u
g
e
R
Demand
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Power System
Regulated - Deregulated
Generator 1 ... Generator N
n
o
i Production
s
i TSO
v
) r
e
t r Electericity
a
t o p
S Market Transmission
( t u
g a
s
n DSO
l
ki u
t
a
g n
M
e e
y
c R m Distribution
Supplier 1 ... Supplier M
i
l
o
n
P
r
e
v
o
DemGand 1 ... ConDseummapntidonK
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Types of electricity markets
• Markets can be classified as:
• Electricity market
• Wholesale, Retail
• Capacity Market (CRM Mechanisms)
• Ancillary Services Markets
• Wholesale market
• Sales and trading of large quantities of electricity
• Forward markets: hedging
• Spot markets: Day-ahead, Intra-day, Balancing market
• Retail market – sale of electricity to consumers
• Demand aggregation
• Simpler access to the network
• Multi-utility concept: provision of different commodities and
services (electricity, gas, water, telecom, …)
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Operation Timing
Decade/year Year/months Day Hour Min Sec Cycles Days
Ex-ante Market Ex-post
Financial Market
15-5 5-1 << 1100
t
n
Spot Market
e
BalancingMkt m
e
Investment Forward Mkt Day-ahead Hourly Mkt
l
t
t
e
S

t
e
k
r
a
M

t
-s
o
p
Construction Maintenance Operating Schedule Operation -
x
E
Generation
Available Energy
h
c Capacity
Capacity t
a
Ancillary Services
p
s l
i o y
D e r t
ent ic erv trol ont bili
it m m s n C a
n e o t
U mit ono . R . C age s. S
m c n q t n
Physical system Co E Spi Fre Vol Tra
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Market Organization
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