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Center of Excellence. Practical Renewable Energy Systems. Prof. Bidyadhar Subudhi [Coordinator]. Department of Electrical Engineering, National Institute of Technology Rourkela. Research Foci of the CoE. 1 . PV Power System Control
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Center of Excellence Practical Renewable Energy Systems Prof. Bidyadhar Subudhi [Coordinator] Department of Electrical Engineering, National Institute of Technology Rourkela
Research Foci of the CoE • 1. PV Power System Control • Parameter extraction and MPPT (Maximum Power point Tracking) • Robust Control for Grid Integrated PV System • Development of Global MPPT algorithms for PV system under non-uniform Insolation • Grid Integration Issues • 2. Wind Energy Conversion System and Control • Active and Reactive Power Control • MPPT(Maximum Power Point Tracking) • WECS Grid Integration Issue • 3. Micro-grid Control
Deliverable Achieved (Experimental Facility Developed) • Development of a 2kW Solar Photovoltaic system (SPV) • Development of a 2kW Grid connected SPV (GC-SPV) • Development of a 2kW DFIG based Wind energy system (WES) • Development of a 4kW SPV and Wind energy Hybrid system
Deliverable Achieved (Research Contributions) • A new maximum power point tracker (MPPT) for a stand-alone photovoltaic (PV) system using the concept of double integral sliding mode controller (DISMC)has been developed. • Grey-wolf Optimization based advanced MPPT is developed to extract maximum PV power under partial shading condition. • Grid synchronization of single and two stage PV system using non-linear control has been developed. • Grid synchronization of Three Phase Single Stage Grid-Connected PV System with Shunt Active Filter is done using Self-Tuning approach which also simultaneously helps in harmonic mitigation. • Active and Reactive power control, unity power factor operation, grid synchronization of Doubly Fed Induction generator based wind energy conversion system (emulated by DC motor) has been done using Stator Flux oriented and Grid voltage Oriented reference frame
Double Integral Sliding Mode MPPT Control of a Photovoltaic System
Experimental Results DISMC-MPPT Although tracking time is higher but less voltage fluctuation in case of DISMC-MPPT compared to APEFC-MPPT
Adaptive double-integral-sliding-mode-maximum-power-point tracker for a photovoltaic system
Adaptive predictive error filter-based maximum power point tracking Algorithm
Design and Real-time Implementation of a New Auto-tuned Adaptive MPPT Control for a PV System
A comparative study on Maximum Power Point Tracking Techniques for Photovoltaic Power Systems
Development of Global MPPT techniques for Standalone PV System Under Partial Shading Conditions
GP LP GP Pattern 2 Pattern 1 LP Power Power Experimental Results of GWO based MPPT Voltage Voltage Current Current Pattern 1: have GP of 77.98W and LP of 47W Pattern 2: have GP of 58.25W and LP of 46.64W (a) Power Voltage Current Proposed method can successfully detect the shading pattern variations and reinitialize the MPPT process exhibiting superior performance (b) Fig. Experimental results for proposed algorithm under variation of solar insolation (a) P-V curves (b) Tracking curves
Deliverable Achieved (Workshop and Seminars Organized) • Control of Renewable Power System, 28-29 Sep 2016 • Control of Renewable Power Systems, 22-23 Feb 2016 • Estimation and Filtering with Applications, 25-27 Feb 2015 • Control of Renewable Power Generation Systems, 7-11 July 2014 • All India Seminar on Recent Advances in Power Energy & Control, 23-24 Nov 2013 • Modelling and Control of Renewable Energy Sources, 3-8 June 2012
Deliverable Achieved (Research Visits of Faculty & Research Scholars to other National and Foreign Universities) • Prof. B. Subudhi and Prof. P.K. Ray, Queen Mary University of London, Research visit during December 2013 for two weeks. • Sri. SatyajitMohanty and Sri. SoumyaMishra went to BIT MESRA, Ranchi, during March 2013 for 3 Days to attend a workshop on ‘Wide Area Network Control’. • Prof. B. Subudhi, visited Virginia Tech, USA during March 2016 for two weeks • Sri. Sudarshan Swain, Sri. Abhishek Parida, Sri. Ompraksash Pahari and Sri. Malaya Bhunia visited Department ofElectrical Engineering, Delhi Technological University, New Delhi, to attend a workshop on “Photovoltaic Array to Utility Interface Power Converters” during August 2016 for one week.
Target • Development of 100 kW PV Micro-Grid System • PCU, AC Distribution box/Synchronizing panel, Cable, battery bank and accessories • Inverters and Converters • Grid Emulator (Programmable Ac Source) • Installation and commissioning • Switchgear & protection devices • Development of Control Algorithms for 100 kW PV Micro-grid Control • Implementation of Control Algorithms in MATLAB, Simulink and Opal-RT • Implementation of Control Algorithms in Real-time on the Physical Set-up
Targets • 2.Industry-Institute interaction [Organizing Workshops, Industrial Visits] • Workshop on Industry Institute Interaction : 26th October 2016 • Workshop on Recent Advances on Smart Grid Technology: 22nd October 2016 • 3.Industrial Consultancy on Solar PV Installation, Solar PV Vehicles • 4. International Projects: • Dr.R.Vepa, Queen Mary Univ. of London and Prof.BidyadharSubudhi: Joint Research Project on Control of PV-Wind Hybrid System under EPSRC funding Scheme for 3 years
Equipments Procured • PV Simulator • dSACE 1103 and dSPACE 1104 • DC-DC Boost Converters and 3-Phase Inverters • Non-linear Load Bank • AC Programmable Source (Grid Emulator) • Auto-Transformer • DC Motor (Wind Emulator) • Double Fed Induction Generator • PMSG • Power Quality Analyzer (Single Phase and Three Phase) • Opal-RT • 12. SPV Modules for a total capacity 100 kWP along with protection and mounting arrangement • 13. Sensor, Data logger System
Notable achievements: Patents • A. Sahoo and R. Tripathy, “Design of fluidized bed biomass gasifier (Cold model and Hot model) Application No.7/KOL/2013 A, Publication Date : 08/03/2013 2. B.Subudhi, Navin Kumar and ToshaliMohanty, “Design of Two Wheeler Hybrid Gasoline Electric Vehicle”,181/KOL, 2015
Design of Two Wheeler Hybrid Gasoline Electric Vehicle • Brief description of the invention: • A 'gasoline-electric hybrid vehicle' relies both on gasoline and also on electric power source. • This hybrid combination makes the vehicle dynamic in nature and provides it’s owner a better fuel economy and lesser environmental impact over conventional automobiles. • HEV comprise of an electric motor, battery and power sources with an internal combustion engine to achieve better fuel economy and reduce toxic emissions. • Battery provides power for low-speed driving and gasoline engine provides for highways or hill climbing. • The energy from IC engine is generally wasted into the atmosphere through exhaust and radiator. • For reutilize, a stirling engine is attached in the exhaust and an array of thermocouple is attached to radiating fins of the cylinder head. The electric power generated is used to run the electric motor directly or indirectly depending upon the power requirements
Production of knowledge and human capital as evidenced by graduate students and trained researchers PhD Degrees Awarded
PhD Theses(Completed) • 4. Pedda Suresh Ogeti, Robust Active and Reactive Power Control Schemes for a DFIG based WECS, B.Subudhi and A.K.Panda(Viva scheduled) • 5. SasmitaBehera,Grid integration and optimal control for wind energy conversion systems, B.B.Pati and B.Subudhi, submitted June 2016
M.Tech Students Awarded 4. B.Majhi Design of a Shunt Active Power Filter with grid connected inverter control for a Photovoltaic System, B. Subudhi, 2015
Production of knowledge and human capital as evidenced by graduate students and trained researchers PhD Students Continuing under CoE : 1. Satyajit Dash Active and Reactive Power Control of WES Supervisor: Prof. B Subudhi Since July 2013 2. Snehaprava Swain Control of Wind Energy System Supervisor: Prof.P.K.Ray Since July 2013 3. Sudarshan Swain Grid Synchronization and Harmonic mitigation of Grid Connected Solar Energy System Supervisor: Prof. B Subudhi Since July 2014 4. Malaya Bhuina Grid Synchronization of Grid Connected Solar Energy System Supervisor: Prof. B Subudhi Since July 2014
New PG Programme BTech & MTech Dual Degree on Energy System Engineering from July 2017
Interaction with Industry & MOU Signed • OREDA Bhubaneswar • Kirti Solar Kolkata • IBM: Smart Grid Control • Shared Electric, Switzerland
Research Collaboration with International University • Queen Marry University of London, UK • Two Professors and one PhD student from NITR visited twice • One Professor and One student from QMUL came to NITR for 2 visits • Virginia Tech, USA
Key Issues/ Concerns Pertaining to the Centre • Procurement Process takes more time than expected
DSO Pyranometer Transparent sheet Data logger and Modem dSPACE analysis window Hall Sensor Boost Converter Solar Panel L load dSPACE 1104 R Load Experimental-Setup of 2kW Standalone Solar PV System
Experimental-Setup of 2kW Grid Connected Solar PV System 2 kWp Solar Panels 2 kW three phase Inverter Measurement system & FPGA
Experimental-Setup of Grid Connected PV System with SAPF 1103
OPAL-RT Chopper Converter DC Motor DFIG Experimental-Setup of 2kW DFIG based WES Driver and Sensor Board
Experimental-Setup of 4kW PV-Wind Hybrid System RSC voltage and current sensors for Solar DC Motor & DFIG GSC Programmable Source Synchronizing Panel voltage and current sensors for WECS PV Panel Voltage Source Inverter(solar)
Financial Status Sanctioned: Rs. 5 Crore Released: Rs.4 Crore Utilized: Rs.3.5 Core Committed: 1.5 Crore