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  1. MD. SHAFIUZZAMAN KHAN KHADEM Supervised by MalabikaBasu Michael Conlon School of Electrical Engineering Systems, Dublin Institute of Technology, Republic of Ireland 15 February 2013

  2. Placement Objectives • Integration • Power Quality degrades due to • Harmonic current injection • Load variation • DG supply variation • Voltage disturbance • Capacity enhancement • Real time control • 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) • Depends on: • sensors position • Design parameters • control method • integration technique • capacity enhance capability • operational flexibility Investigate

  3. Research Methodology • Real time control • (RT-LAB) sm_Plant • Software-in-loop method • (hardware synchronized) • Software • Virtual Plant & Controller • Hardware • Data acquisition system ss_Control

  4. Power Quality (PQ) • (Network) • (Chapter - 1) • PQ issues • PQ mitigation techniques • Custom Power Devices Literature Review • Design & Control • (Compensator) • (Chapter - 2) • Shunt Active Power Filter • Series Active Power Filter • Unified Power Quality Conditioner • Placement & Integration • (Chapter – 3,5) • DG integrated microgrid network • UPQC in microgrd • Bi-directional power flow • Parallel Operation • (Chapter – 4) • Shunt Active Power Filter • Active power sharing method • Droop control method • Capacity enhancement • (Chapter – 6) • Reactive and harmonic current compensation • Operational flexibility • Circulating current flow

  5. Generalized design procedure of shunt part of the UPQC • Associate the active power loss to the selection of design parameters • VSI based APF with hysteresis current control Research Contribution • Design • (Chapter – 2) • 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 • Placement • (Chapter – 3) • UPQCµG: A new proposal for integration of UPQC in DG connected µG network • Operational flexibility of µG network • UPQCµG: A new proposal for integration of UPQC in DG connected µG network • Operational flexibility of µG network • Integration • (Chapter – 5) • Distributed UPQC (D-UPQC): A new proposal for capacity enhancement • Operational flexibility of D-UPQC • Reduction of circulating current flow • Distributed UPQC (D-UPQC): A new proposal for capacity enhancement • Operational flexibility of D-UPQC • Reduction of circulating current flow • Capacity enhancement • (Chapter – 6) Real Time Performance Study

  6. UPQCµG-I/IR: A new proposal for integration of UPQC in DG connected µG network • Operational flexibility of the µG network Research Contribution • Integration • (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

  7. UPQCµG-I/IR: A new proposal for integration of UPQC in DG connected µG network • Operational flexibility of the µG network Research Contribution • Integration • (Ch – 5) Control IsD – Easy & flexible SynRec

  8. UPQCµG-I/IR: A new proposal for integration of UPQC in DG connected µG network • Operational flexibility of the µG network Research Contribution • Integration • (Ch – 5) • UPQCµG-I R • UPQCµG-I Islanding Reconnection

  9. UPQCµG-I/IR: A new proposal for integration of UPQC in DG connected µG network • Operational flexibility of the µG network Research Contribution • Integration • (Ch – 5) Real Time Performance Voltage sag with DG current forward & reverse flow Dynamic Steady state

  10. 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

  11. Thank You

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