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Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Supervised by
Malabika Basu Michael Conlon
MD. SHAFIUZZAMAN KHAN KHADEM
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
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
Objectives
UPQC
Distributed Generation Integrated Network(interconnection of DG sources with EPS and PCC)
Power Quality degrades due to• Harmonic current injection• Load variation• DG supply variation• Voltage disturbance
UPQC improves the PQ byCompensate • reactive current• harmonic current• voltage disturbance
Investigate
Placement
Integration
Capacity enhancement
Real time control
• capacity enhance capability• operational flexibility
Depends on:• sensors position• Design parameters• control method• integration technique
Cope up • with bi-directional power flow• capacity change• flexible operation
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Research Methodology
Literature review
Real time control
Publication and Presentation
Thesis writing
Identification of research direction and
investigation
Simulation
(MATLAB)
Real time control
(RT-LAB)
Software-in-loop method(hardware synchronized)
Software• Virtual Plant & Controller
Hardware• Data acquisition system
ss_Control
sm_Plant
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Literature Review
• PQ issues• PQ mitigation techniques• Custom Power Devices
Power Quality (PQ)
(Network)
(Chapter - 1)
• Shunt Active Power Filter• Series Active Power Filter• Unified Power Quality Conditioner
Design & Control
(Compensator)
(Chapter - 2)
• DG integrated microgrid network• UPQC in microgrd• Bi-directional power flow
Placement & Integration
(Chapter – 3,5)
• Shunt Active Power Filter• Active power sharing method• Droop control method
Parallel Operation
(Chapter – 4)
• Reactive and harmonic current compensation• Operational flexibility• Circulating current flow
Capacity enhancement
(Chapter – 6)
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Research Contribution
VS
I ba
sed
AP
F w
ith
hyst
eres
is c
urre
nt c
ontr
ol
Real Time Performance Study
Design
(Chapter – 2)
• Generalized design procedure of shunt part of the UPQC• Associate the active power loss to the selection of design parameters
Placement
(Chapter – 3)
• 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
Integration
(Chapter – 5)
• UPQCµG : A new proposal for integration of UPQC in DG connected µG network• Operational flexibility of µG network
Capacity enhancement
(Chapter – 6)
• Distributed UPQC (D-UPQC): A new proposal for capacity enhancement• Operational flexibility of D-UPQC• Reduction of circulating current flow
• UPQCµG : A new proposal for integration of UPQC in DG connected µG network• Operational flexibility of µG network
• Distributed UPQC (D-UPQC): A new proposal for capacity enhancement• Operational flexibility of D-UPQC• Reduction of circulating current flow
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Research Contribution
Control Features- Voltage sag/swell- Reactive and harmonic current- Islanding (UPQCµG-I & UPQCµG-IR)- Reconnection (UPQCµG-IR)
Integration
(Ch – 5)
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network• Operational flexibility of the µG network
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
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
Research Contribution
Control
IsD – Easy & flexible
SynRec
Integration
(Ch – 5)
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network• Operational flexibility of the µG network
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Research Contribution
Islanding
Integration
(Ch – 5)
ReconnectionUPQCµG-I UPQCµG-I R
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network• Operational flexibility of the µG network
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Research Contribution
Real Time Performance
Integration
(Ch – 5)
Voltage sag with DG current forward & reverse flow
Steady stateDynamic
• UPQCµG-I/IR : A new proposal for integration of UPQC in DG connected µG network• Operational flexibility of the µG network
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
Research Contribution
Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner
Thank You