Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Power Quality Improvement of Distributed Generation
Integrated Network with Unified Power Quality Conditioner
MD. SHAFIUZZAMAN KHAN KHADEM
Supervised by
Malabika Basu
Michael Conlon
School of Electrical Engineering Systems,
Dublin Institute of Technology,
Republic of Ireland
15 February 2013
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Content
Objectives
Research Methodology
Literature Review
Research Contribution
Question & Answer
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Power Quality degrades due to
• Harmonic current injection
• Load variation
• DG supply variation
• Voltage disturbance
UPQC improves the PQ by
Compensate
• reactive current
• harmonic current
• voltage disturbance
UPQC
Cope up
• with bi-directional power flow
• capacity change
• flexible operation
Distributed Generation Integrated Network
(interconnection of DG sources with EPS and PCC)
Placement
Integration
Investigate
Capacity
enhancement
Real time control
Depends on:
• sensors position
• Design parameters
• control method
• integration technique
• capacity enhance capability
• operational flexibility
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Literature review
sm_Plant
Real time control
Real time control
(RT-LAB)
Simulation
(MATLAB)
Identification of
research direction and
investigation
Publication and
Presentation
Thesis writing
ss_Control
Software-in-loop method
(hardware synchronized)
Software
• Virtual Plant & Controller
Hardware
• Data acquisition system
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Power Quality (PQ)
(Network)
(Chapter - 1)
Design & Control
(Compensator)
(Chapter - 2)
Placement &
Integration
(Chapter – 3,5)
Parallel Operation
(Chapter – 4)
Capacity
enhancement
(Chapter – 6)
• PQ issues
• PQ mitigation techniques
• Custom Power Devices
• Shunt Active Power Filter
• Series Active Power Filter
• Unified Power Quality Conditioner
• DG integrated microgrid network
• UPQC in microgrd
• Bi-directional power flow
• Shunt Active Power Filter
• Active power sharing method
• Droop control method
• Reactive and harmonic current compensation
• Operational flexibility
• Circulating current flow
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
(Chapter – 2)
Placement
(Chapter – 3)
Integration
•
•
•
•
Placement of UPQC and its sensors
Impact of sensor placement on the UPQC control
Performance of UPQC with bi-directional power flow
The advantage of DG inverter in presence of UPQC
UPQCµG
A new
new proposal
proposal for
for integration
integration of
of UPQC
UPQC in
in DG
DG connected
connected µG
µG network
network
•• UPQC
µG :: A
Operational flexibility
flexibility of
of µG
µG network
network
•• Operational
(Chapter – 5)
Real Time Performance Study
Capacity
enhancement
(Chapter – 6)
•
•
•
Distributed UPQC (D-UPQC): A new proposal for capacity enhancement
Operational flexibility of D-UPQC
Reduction of circulating current flow
VSI based APF with hysteresis current control
Design
• Generalized design procedure of shunt part of the UPQC
• Associate the active power loss to the selection of design parameters
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network
Integration • Operational flexibility of the µG network
(Ch – 5)
Integration Technique
- μG and APFsh are in parallel to grid
and placed at PCC
- APFse is in series
- DC link can be connected to storage
Control Features
- Voltage sag/swell
- Reactive and harmonic current
- Islanding (UPQCµG-I & UPQCµG-IR)
- Reconnection (UPQCµG-IR)
Advantages
- μG can be connected to the system
during grid fault
- μG achieves operational flexibility in
islanding and reconnection process
- μG provides only the active power to
the load. Therefore, it reduces the
control complexity
- μG can even work in the presence of
a phase jump or a phase difference
between the grid and μG (UPQCµG-IR).
- Provide high quality power for all time
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network
Integration • Operational flexibility of the µG network
(Ch – 5)
Control
IsD – Easy & flexible
SynRec
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network
Integration • Operational flexibility of the µG network
(Ch – 5)
UPQCµG-I R
UPQCµG-I
Islanding
Reconnection
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network
Integration • Operational flexibility of the µG network
(Ch – 5)
Real Time Performance
Voltage sag with DG current forward & reverse flow
Steady state
Dynamic
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Journal Papers
Published:
S K Khadem, M Basu and M Conlon, Parallel Operation of Inverters and Active Power Filters in Distributed Generation
System – A Review, Elsevier Journal - Sustainable and Renewable Energy Review
S K Khadem, M Basu and M Conlon, UPQC for Power Quality Improvement in DG Integrated Smart Grid Network – A
Review, BE Press Journal – International Journal of Emerging Electrical Power Systems
In Review:
S K Khadem, M Basu and M Conlon, Harmonic Power Compensation Capacity of Shunt APF and its Relationship to
Design Parameters, IET Power Electronics
S K Khadem, M Basu and M Conlon, UPQCµG-I - A new proposal for integration of UPQC in DG connected Micro-grid or
Micro-generation network, IEEE Trans Sustainable Energy
S K Khadem, M Basu and M Conlon, UPQCµG-IR - A new proposal for integration of UPQC in DG connected Micro-grid
or Micro-generation network, IEEE Trans Smart Grid
Progress:
S K Khadem, M Basu and M Conlon, Critical Issues on Placement of UPQC in DG integrated Network, IEEE Trans
Power Delivery
S K Khadem, M Basu and M Conlon, D-UPQC - A new proposal for UPQC to enhance capacity and achieve
operational flexibility in DG connected Micro-grid or Micro-generation network, IEEE Trans Sustainable Energy
Conference Papers
S K Khadem, M Basu and M Conlon, Power Quality in Grid connected Renewable Energy Systems: Role of Custom
Power Devices, in the International Conference on Renewable Energies and Power Quality (ICREPQ´10), 23-25 March,
2010, Granada, Spain
S K Khadem, M Basu and M Conlon, A Review of Parallel Operation of Active Power Filters in Distributed Generation
System, EPE 2011 Conference , 30 Aug – 1 Sep 2011, UK
S K Khadem, M Basu and M Conlon, Integration of UPQC for Power Quality Improvement in Distributed Generation
Network – A Review, ISGT Europe, 2011, UK
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner