Power Quality Improvement of Distributed Generation Integrated Network

Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner MD. SHAFIUZZAMAN 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 Objectives 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 Distributed Generation Integrated Network (interconnection of DG sources with EPS and PCC) Placement Investigate Integration Capacity enhancement Real time control Cope up • with bi-directional power flow • capacity change • flexible operation 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 Research Methodology Literature review sm_Plant Simulation Real time control (RT-LAB) (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 Literature Review 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 Research Contribution Placement (Chapter – 3) Integration (Chapter – 5) • • 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 UPQCµG A new proposal for integration of of UPQC in in DG DG connected µG µG network • • UPQC µG : : A Operational flexibility of of µG µG network • • Operational 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 (Chapter – 2) • 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 Research Contribution • 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 Research Contribution • 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 Is. D – Easy & flexible Syn. Rec

Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner Research Contribution • 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 Research Contribution • 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 Research Contribution 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

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