FACTS Control for Long‐ and Short‐ Term Energy Storage Mehdi Ferdowsi Missouri University of Science and Technology Funded by the Energy Storage Systems Program of the U.S. Department Of Energy (DOE/ESS) through Sandia National Laboratories (SNL). Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration, under contract DE-AC04-94AL85000.
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
FACTS Control for Long‐
and Short‐ Term Energy Storage
Mehdi FerdowsiMissouri University of Science and Technology
Funded by the Energy Storage Systems Program of the U.S. Department Of Energy (DOE/ESS) through Sandia National Laboratories (SNL). Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration, under contract DE-AC04-94AL85000.
Issues•
Short‐
and Long‐Term Energy Storage
•
Storage Integration
•
Cyber Security33
vv
Transmission LineGenerationFACTS
Wind Power
Energy Storage
Solar Power
Energy Storage
FACTS Device
Distributed Decisions
Power Electronics
Communications
Sensing and monitoring Inputs
Power Electronics
Power Electronics
Distributed controland fault/attack detection
2
3
Part I
UPQC Integrated with an
EC & DC‐DC Converter
4
Unified Power Quality Controller
•
Provides bi‐directional protection for load and system
Left‐Shunt (LS) UPQC Right‐Shunt (RS) UPQC
5
PSCAD Results
Harmonic Load
Source/System
6
Short‐Circuit Fault
7
UPQC + DC‐DC Converter Fed by EC/BESSs
•
EC/BESS can provide better performance in fault ride
through
•
Increased operating range for better THD reduction
•
Increased operating range for power factor correction
8
Part II
Hybrid Energy Storage
Systems: BESS + ECs
Hybrid Energy Storage System with Multiple Converters
9
Double‐Input Converters (DIC)•
They integrate different power sources
while each one is allowed to have a different power rating
•
Decreased Cost; Increased Reliability
10
Derivation of DICs
Using H‐Bridge Cell
Double‐Input Buck‐Buck
Double‐Input Buckboost‐Buckboost
Double‐Input Buck‐Buckboost
H-BridgeCell 1
H-BridgeCell 2
H-BridgeCell 1
H-BridgeCell 2
H-BridgeCell 1
H-BridgeCell 2
11
Double‐Input Buck‐Buck Converter
V2 S7
S6
V1 S3
S2
L
C R
S8
S5
S4
S1
i1
i2
iL
iC iO
Vo
+
_
+ -VL
+
-
+
-
+
-
+
-iS2iS1
iS6iS5
VS1 VS2
VS6VS5
12
Simplified Double‐Input Buck‐Buck Converter
V2
S6
V1
S2
L
C R
S5
S1
i1
i2
iL
iC iO
Vo
+
_
+ -VL
13
Voltage Transfer Ratios
2211 *Vd*VdVO
Buckboost‐Buckboost
Buck‐BuckboostBuck‐Buck
22
21
21
221
1
11*V
TT
dd
d*V
TT
dd
dVO
22
21
2
1 *1
*1
Vd
dV
dd
VO
14
15
Part III
Detecting and Preventing
Interference in Cooperating
Power Electronics
Distributed Control•
Each power electronics subsystem
contributes to the overall system operation.
•
Previous work showed the sensitivity of the system to the controllers
–
Failed or compromised controllers can cause serious power system failures
•
Cyber and physical interactions cause new vulnerabilities:
–
Frequency domain interactions
–
Confidentiality interactions 16
FACTS Interaction Laboratory•
FACTS Interaction Laboratory–
Real FACTS Devices and Programmable Load
–
Real‐Time Simulated Large Power System
17
D/A Output
A/D Input
FACTS
Controllable Load
Power System Simulation Engine
Information Flow
18
Embedded PC
Long TermControlDynamicControl
DSP Board
Power Electronics
UPFC
Long TermControlDynamicControl
Embedded PC
DSP Board
Power Electronics
UPFC
Embedded PC
Long TermControlDynamicControl
DSP Board
Power Electronics
UPFC
Computernetworks
Computernetworks
Local powernetwork
Local Powernetwork
Local Powernetwork
Bulk Power Grid
Low-level security domain Medium-level security domain High-level security domain
UPFC: Unified Power Flow Controller DSP: Digital Signal Processing
Explicit Communication
Implicit Communication
Information Flow Security in CPS
•
The physical nature of a security boundary tends to expose information outside the
cyber world.
•
The timing pattern could expose high‐level system behaviors since time is global and
can be observed by all the security levels.
19
Summary•
UPQC –
Provides a bidirectional ac‐ac interface
between the bulk power system and distributed energy resources
•
DIC –
Provides long and short‐term energy storage capabilities to improve performance in
both the bulk and distributed systems
•
CPS –
Determines and mitigate vulnerabilities in power electronic based systems in the bulk
power grid
20
Special Thanks
•
Imre Gyuk ‐
DOE
•
Stan Atcitty ‐
Sandia National Laboratories
•
John Boyes ‐
Sandia National Laboratories
21
Related Documents
