annual report 2018 · 2019-01-18 · components of a hydropower plant, including the dam, penstock,...
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ANNUAL REPORT 2018
Hydropower Simulation LaboratoryDept. of Water Resources Development & Management
IIT ROORKEE
1
People
B. ANIL KUMAR Research Scholar Research Scholar
C. CARUNAISELVANE
Research ScholarJAVED ALI
NASEER FAIZIM.Tech Student
CHAMKAUR SINGH ADDISr. Technical Superintendent
M. CHANDRASEKARSenior Research Fellow
UGC - Junior Research Fellow RUPESH KUMARI
R.R. SEMWAL Research Scholar (Part Time)
PROF. THANGA RAJ CHELLIAH
Hydropower Simulation LabOfcer - in - Charge
D. KARTHIKSenior Research Fellow
MORIE BAYOH KOBBA M.Tech Student
Senior Research FellowRAGHU SELVARAJ
VIDYASAGAR TUMMAKURIProject Associate
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Contents
Research Projects....................................................................05
Research Publications..............................................................07
About the Laboratory................................................................03
Awards & Abroad Visits............................................................09
Distinguished Visitors to the Laboratory...................................15
2017 Highlights........................................................................12
Ph.D. Awarded......................................................................... ....14
R & D Meetings........................................................................10
Short Article : Should Variable Speed Technology In Large Hydro
Power Plant be Confirmative or Negative?................................ ....16
Short Term Courses..................................................................11
About The Laboratory
2. Possible grid disturbances are created with the help of programmable AC Power source
and analyze the performance of hydro-generating equipments.
† Equipment & Software available in the laboratory: The laboratory is well equipped with
synchronous and asynchronous generators, power electronic converters, digital signal
processors and dSPACE control kits, power quality analyzers, programmable power supplies
and software packages including MATLAB, SIMSEN, and PLECS. In addition, procurement of
a real time simulator from Opal – RT Technologies is under progress.
† To support the simulation study, the following additional facilities are developed.
† Full Spectrum Simulator: The laboratory has signed an MoU with Centre for Development of
Advanced Computing, Thiruvananthapuram for Full Spectrum Simulator (Mini) program
under the support of National Mission on Power Electronics Technology (NAMPET), Ministry
of Electronics and Information Technology (MeitY).
1. Real time interface, through DS 1104 and DS 1202 microlabbox, of simulation tool with the
prototype model of various generators used in hydropower plants.
† Collaborative/Sponsored Research: The laboratory is committed for the research in
support of national and international organizations including THDC India Limited (Rishikesh),
Central Power Research Institute (Bangalore), Department of Science of Technology (New
Delhi), and Ministry of Shipping (New Delhi). In addition, the laboratory is collaborated with the
Indian Maritime University (Vishakapatinam) through a research project.
† Unique features: It deals with the simulation of graphical input/output of the various
components of a hydropower plant, including the dam, penstock, hydro-mechanical
equipments, hydro-generators (both synchronous and asynchronous in large capacity), multi-
channel power electronic circuits for excitation and variable speed operation, grid interface,
etc.
† Hydropower Simulation Laboratory (HSL) is a part of Dept. of Water Resources Development
and Management, Indian Institute of Technology Roorkee. It aims to model and simulate
hydroelectric systems and to validate the developed models through laboratory prototype.
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† Courses offered: The laboratory offers a PG course entitled “Modelling and Simulation of
Hydro-Electric Energy Systems” which provides a platform for the P.G/Ph.D students to share
their views and experience among industrialists, fellow researchers, and academicians in the
emerging areas of hydropower engineering.
† Targets/Goals in the next five years:
† Development of software solutions for renovation and modernization of Indian
hydropower plants.
† Create an industrial collaboration for hydropower real-time simulation.
† Development of power and control circuit redundancy in variable speed hydro.
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Research Projects (2018)
Strand 1: Completed & Ongoing Tehri Hydropower Development Corp. (I) Ltd Topic | Analysis of Dynamic Performance of Variable Speed Hydroelectric Plants under Grid Disturbances. |Completed
Central Power Research Institute, Bangalore
Principal Investigator | Prof. Thanga Raj Chelliah
Topic | Design and Experimental Validation of Battery Operated
Principal Investigator | Prof. Thanga Raj Chelliah
Ministry of Shipping, Govt. of India
Ministry of Shipping, Govt. of India
in Tugboats to Improve Fuel Efficiency. | Ongoing
Status | Accepted for funding
Principal Investigator | Prof. Thanga Raj Chelliah
Principal Investigator | Prof. Thanga Raj Chelliah
Topic | Reduction of Switching Transients in Doubly Fed
Topic |Doubly-Fed Induction Machine as a Propulsion Motor
Short Endurance Vessels with Wireless Charging Circuit.
Induction Machines used in Large Pumped Storage Plants. |Completed
Principal Investigator | Prof. Thanga Raj Chelliah
Central Power Research Institute, Bangalore Topic | Design of Fault Tolerance and Reconfiguration Control for Megawatt
Power Electronic Converters Fed Variable Speed Pumped Storage Units. Status | Accepted for funding
Strand 2: Upcoming Projects
Tehri Hydropower Development Corp. (I) LtdTopic |Analysis and Mitigation of Active Power Oscillations in Hydro-Generators Fed High Voltage Transmission Lines.Status | Accepted for funding Principal Investigator | Prof. Thanga Raj Chelliah
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Topic | Power-Hardware-In-Loop Simulation for 25MW Power Electronic Converters Fed 250MW Hydro-Generating Unit.
National Mission on Power Electronics Technology, India
Ministry of Human Resource Development, India Topic | Design of Active Thermal Control Systems for Multi-MW Power
Converters Serving to Large Rated Adjustable Speed Hydro Generating Unit.Collaborator | Dept. of Energy Technology | Aalborg University Denmark
Principal Investigator | Prof. Thanga Raj Chelliah
Collaborator | IISc, IITB, NITT, IIEST Shibpur and CDAC-T Principal Investigator | Prof. Thanga Raj Chelliah
Strand 3: Projects submitted for funding
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Research Publications (2018)Strand 1: Patent
Strand 2: Peer Reviewed Journals
† Thanga Raj Chelliah, Anto Joseph, Rajasingh R., Karthik D., Deepak Khare,“Energy
Efficient Starting of Pump Turbine Equipped with Doubly Fed Induction Machine”, Accepted
by IITR-IPR Cell and forwarded to patent office.
† R. Rajasingh, Raghu Selvaraj, Harshit Mohan and Thanga Raj Chelliah,"Dynamic
Performance of Doubly-Fed Hydroelectric Machines under Voltage Unbalance – A Relative
Electro-Thermomechanical Analysis", IEEE Trans. Industry Applications, Vol. 54, No.5,
2018.
† Raghu Selvaraj, Thanga Raj Chelliah, Deepak Khare and C. Bharatiraja,"Fault Tolerant
Operation of Parallel Connected 3L- Neutral-Point Clamped Back-to-Back Converters
Serving to Large Hydro-Generating Units", IEEE Trans. Industry Applications,Vol. 54, No.5,
2018.
† Anto Joseph, S. Raghu, Thanga Raj Chelliah and S.V. Appa Sarma, “Starting and Braking of
a Large Variable Speed Hydro-Generating Unit Subjected to Converter and Sensor Faults”,
IEEE Trans. Industry Applications, Vol. 54, No.4, 2018.
† Anto Joseph, D. Karthik, R. R. Semwal, Thanga Raj Chelliah,and Deepak Khare, "Dynamic
Performance of Pumping Mode of 250 MW Variable Speed Hydro-Generating Unit Subjected
to Power and Control Circuit Faults", IEEE Trans. Energy Conversion, Vol. 33, No.1, 2018.
† Anto Joseph and Thanga Raj Chelliah,"Fault Diagnosis and Fault Tolerant Control of
Megawatt Power Electronic Converters Fed Large Asynchronous Hydro-Generator", IEEE
Journal of Emerging and Selected Topics in Power Electronics (Accepted for Publication).
† C. Bharatiraja, S. Raghu, T. R. Chelliah, M. Tariq, and J. L. Munda,"Design and
implementation of fourth arm for elimination of bearing current in NPC-MLI fed Induction
motor drive", IEEE Trans. Industry Applications, Vol. 54, No.1, 2018.
† Anto Joseph and Thanga Raj Chelliah,"A Review of Power Electronic Converters for Variable
Speed Pumped Storage Plants: Configurations, Operational Challenges, and Future
scopes", IEEE Journal Of Emerging and Selected Topics In Power Electronics, Vol. 6, No.1,
2018.
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Strand 3: International Conference Proceedings
† Karthik Desingu, Raghu Selavraj, Thanga Raj Chelliah,"Thermal Loading of Multi-Megawatt
Medium-Voltage Power Converters Serving to Variable Speed Large Pumped Storage
Units", IEEE Power Electronics, Drives and Energy Systems Conference, IIT Madras, 18-21
December 2018.
† C. Carunaiselvane, Thanga Raj Chelliah, Appa Sarma S. V.,“Vibration Analysis of a
Continuously Overloaded Large Hydrogenerator at Load Rejection”, th 20 International
Seminar on Hydropower Plants, 14-16 November 2018, Austria.
† Karthik D., S. Raghu, Thanga Raj Chelliah, D. Khare,“Effective Utilization of Parallel
Connected Megawatt Three-Level Back-to-Back Power Converters in Variable Speed
Pumped Storage Units", rd53 IEEE IAS Annual Meeting (USA), 23 – 27 September 2018.
† R. R. Semwal, Anto Joseph, Thanga Raj Chelliah,"Two - Stage Protection for multichannel
Power electronics converter fed large Asynchronous generating Unit", IEEE International
Power Electronics Conference (IEEE - IPEC), Niigata, Japan, 20-24 May 2018.
† B. Anil Kumar, M. Chandrasekar, Thanga Raj Chelliah, U. S. Ramesh, “Fuel Minimization in
Diesel-Electric Tugboat Considering Flywheel Energy Storage System”, 2018 IEEE
Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific),
Bangkok, 6 - 9 June 2018.
† B. Anil Kumar, M. Chandrasekar, Thanga Raj Chelliah, U. S. Ramesh,"Coordinated Control
of Electric Tugboats Considering Inductive Power Transfer for better Fuel Efficiency", IEEE
Power Electronics, Drives and Energy Systems Conference, IIT Madras, 18-21 December
2018.
† Rupesh Kumari, Thanga Raj Chelliah,"Development Trends and Future Prospects of Control
Systems Serving to Hydro-power Plant", IEEE Power Electronics, Drives and Energy
Systems Conference, IIT Madras, 18-21 December 2018.
† C. Carunaiselvane, Thanga Raj Chelliah,"Temperature Distribution of 250 MW Hydro
Turbine Synchronous Generator at Continuous Overloading Conditions", IEEE Power
Electronics, Drives and Energy Systems Conference, IIT Madras, 18-21 December 2018.
† C. Carunaiselvane, Thanga Raj Chelliah, Appa Sarma S. V.,"Negative Sequence Current
Capability of Megawatt Hydro Generators at Uprated Unbalanced Loads", IEEE Power
Electronics, Drives and Energy Systems Conference, IIT Madras, 18-21 December 2018.
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Awards & Abroad Visits (2018)Mr. D. Karthik, Senior Research Fellow of the
laboratory, received CSIR Travel Grant Award
to attend 2018 IEEE - IAS Annual Meeting held
at Portland, USA. He presented a research
paper entitled "Effective Utilization of Parallel
Connected Megawatt Three-Level Back-to-
Back Power Converters in Variable Speed
Pumped Storage Units" at the meeting.
Mr. C. Carunaiselvane, Research Scholar of
the laboratory, received CSIR Travel Grant
Award to at tend Viennahydro 2018
Conference, Austria during 14-16 November
2018. He presented a research paper entitled
“Vibration Analysis of a Continuously
Overloaded Large Hydrogenerator at Load
Rejection” at the conference.
Mr. N Sai Suprabhath, NIT Trichy worked in
the laboratory as a SPARK Fellow (May –
June 2018) and he won SPARK 2018 poster
award.
Prof. Thanga Raj Chelliah, officer- in- charge
of Laboratory, attended IEEE – International
Power Electronics Conference (IEEE – IPEC
2018) held at Niigata (JAPAN) during 20 – 24
May 2018 and presented his paper entitled,
“Two Stage Protection for Multichannel
Power Electronics Converters Fed Large
Asynchronous Generating Unit”. In addition,
he visited Prof. Akira Suguwara's Lab
(Archimedean Screw Lab) at Niigata
University.
10
R & D Meetings Attended (2018)
Prof. Thanga Raj Chelliah and Prof. P. Jena, EED rd
attended R&D meeting held in THDC India Limited on 3
July 2018 and presented a research project proposal on
“Analysis and Mitigation of Active Power Oscillations in
Hydro Generator fed High Voltage Transmission Lines”.
Prof. Thanga Raj Chelliah attended R & D Conclave
organised by Central Electricity Authority (CEA) during
20 - 21 February 2018 and presented his research
findings entitled “Design challenges for redundancy in
power and control circuit of variable speed hydro
generating units”.
Prof. Thanga Raj Chelliah attended the meeting of R & D
Committee on Grid, Distr ibut ion and Energy
Conservation held in Central Power Research Institute
(Banglore) during 12 – 13 July 2018 and presented a
research project proposal on “Design of Fault Tolerance
and Reconfiguration Control for Megawatt Power
Electronic Converters Fed Variable Speed Pumped
Storage Units”.
Prof. Thanga Raj Chelliah attended R & D meeting chaired by Addl. Secretary and Financial thAdvisor of Ministry of Shipping held at Transport Bhawan (New Delhi) on 20 November 2018
and presented a research project proposal on “Design and Experimental Validation of Battery
Operated Short Endurance Vessels with Wireless Charging Circuit”. This research has
collaborated with Indian Maritime University, Vishakhapatnam.
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Short Term Courses (2018)
A five-day short term course on “Applications and Challenges in Multi-Channel Megawatt Power
Electronic Systems” was jointly organized by the Hydropower Simulation Laboratory, Dept. of
Water Resources Development and Management & Quality Improvement Programme Centre, IIT
Roorkee during July 16 –20, 2018. The course was financially supported by AICTE. Prof. Thanga
Raj Chelliah and Prof. Deepak Khare were course coordinators. Experts from IIT Roorkee, THDC
India Limited and Power Electronic Group of Centre for Development of Advanced Computing,
Thiruvananthapuram were delivered lectures.
in renewable energy applications.
The main objective of this course is to
d i s c u s s t h e a p p l i c a t i o n s a n d
challenges of large scale (megawatt)
power electronic systems among the
young teachers and field engineers
with the consideration of various issues
on these areas. The course is
structured in consideration of following
sub-objectives:
1. Discuss the necessity of multi
channel power electronic system
5. Discuss protection and power quality issues in multi-channel power electronic systems.
6. Discuss hydropower generation under varying climatic conditions.
2. Explore the megawatt power electronic technology to use as an efficient interface for variable
speed operation of large pumped hydropower plants, both pumping and generating modes.
3. Explore the operational challenges on megawatt multi-channel power electronic systems.
4. Explore the possibilities of fault tolerant control and/or redundancy of megawatt power
electronic systems.
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Ph.D Awarded (2018)
Name of Scholar : Dr. Anto Joseph
Duration : 2015 - 2018
Title of Research : Analysis of Dynamic Behavior of Variable
Speed Pump Storage Units under Converter
Faults
Current Affiliation : Post Doc. Scholar in Power Electronics
Laboratory, University of California, Irvine.
(to be joined)
Name of Scholar : Dr. R. Rajasingh
Current Affiliation : Associate Professor, VIT University, India.
Duration : 2012 - 2017
Title of Research : Des ig n a nd Deve lopm ent o f Ene rg y
Conservation Strategies for Asynchronous
Machine Drives
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Distinguished Visitors to the Laboratory
Shri. Pankaj Batra, Member (Planning),
Central Electricity Authority, India visited ththe laboratory on 25 January 2018.
Variable speed hydro generating
equipments and design challenges for
redundancy in power and control circuits
were discussed.
Shri. Gyan Bhadra Kumar, Sr.Vice-President th(Hydro), Jindal Energy visited the laboratory on 4
October 2018. Issues on continuous overloading
of Karcham Wangtoo Hydroelectric Plant (1000
MW), Himachal Pradesh were discussed.
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2017 Highlights
National Workshop on Power Electronics 2017 (NWPE 2017)
The fourth National Workshop on Power Electronics on the theme “Strengthening Grid energy
Storage through Power Electronics -Challenges and Research Opportunities” under the aegis of
National Mission on Power Electronics Technology (NaMPET-II) was organized by the Hydropower
Simulation Laboratory of Department of Water Resources Development and Management, IIT
Roorkee during October 9-11, 2017. There were 77 participants from industry, research
organizations, user agencies and educational institutions in India participated in this three days
event along with 3 stalls for industry for product/technology exhibitions. This was coordinated by
Prof. Thanga Raj Chelliah, Prof. Deepak Khare and Prof. S. P. Srivastava of IIT Roorkee.
The Workshop was inaugurated by Professor A. K. Chaturvedi, Director, IIT Roorkee and
Chief Guest for the function. Shri. Tara Shanker, Director, Ministry of Electronics and Information
Technology (MietY), Professor H. P. Khincha, Advisor IISc and former Vice Chancellor of VTU, and
Shri. B. Ramani, Executive Director of CDAC Thiruvananthapuram were the guests of honor.
Professor A. K. Tripathy, Former Director General, CPRI Bangalore was the Chief Guest of
the valedictory function. A special session for industry interaction was organized on the third day to
discuss the technology scenario and needs of the industry in the area of power electronics.
About 50 participants attended the session. Among them 23 industry participations
including ABB India Ltd., CDAC Thiruvananthapuram, CSIR - CECRI, GE India, BHEL, THDC India
Limited, Karnataka Power Transmission Corporation Ltd. and OPAL-RT Technologies. The
problems which are faced by industry and academic institutions and the way to collaborate to
achieve the technological requirements to both industry and for the society were discussed.
Co-Sponsors
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Should Variable Speed Technology in Large Hydropower Plant be Confirmative or Negative?
Large DFIM unit with parallel converters has the disadvantage of not having redundancy
with power converter and control circuit in excitation system because of: (i) possibilities of over
voltage in rotor windings during the operation of breakers/contactors in converter redundant
process (ii) complexities in protection of power converters (detection of dynamic variation of rotor
frequency and dc component of rotor current) [1].
Cycloconverters and two level / three-level voltage source back-to-back converters are
prominent in the application of large rated variable speed hydro units. In comparison with
synchronous machines based fixed speed hydro units, the rating of excitation system equipped with
power electronic converter is quite large in DFIM fed variable speed PSP. The later one handles slip
power of the machine. It leads to choose parallel converters in this application by the project
developers in consultation with large PEC manufacturers.
In order to enable VSO, synchronous machines of fixed speed Pumped Storage Plants
(PSP) need to be driven with full scale power electronic converters (PEC). Such design of high
capacity PEC is not economical. Further, these full scale converters lead to increase the project cost
in case of underground power houses. Therefore, variable speed large PSP employing Doubly-Fed
Induction Machine (DFIM) with slip power rated PEC is an acceptable option for the storage dams
with wide variation in water head (e.g. Tehri dam, India [2]). Some examples of variable speed
hydrogenating units in operation are 2x400 MW DFIM (Ohkawachi, Japan), 2x300MW DFIM
(Goldisthal, Germany), 4x250MW DFIM (Linthal, Switzerland), 2x380MW DFIM (Frades II,
Portugal) and 4x250MW DFIM (under construction at the Tehri dam, India).
Hydropower Plant (HP) converts the energy of water in the stream and river into electricity. The
volume of water flow and the utilized head determine the quantity of electricity. The greater the flow
and head, more electricity produced. Usually, hydro-turbines are optimized for an operating point
defined by speed, head, and discharge. HPs that are constructed in the beginning of the 20th
century in the European continent were of fixed speed type employing synchronous machine and
the same were continually established in Asian and American continents also. At fixed speed
operation, limited deviation from head and discharge are allowed if the efficiency of turbine is
considered as a constraint [1]. Variable speed operation (VSO) of hydro turbine and generator offers
an attractive solution for improved efficiency at part-loads in addition with greater flexibility in power
delivery [2].
By Thanga Raj Chelliah, Senior Member IEEE,Officer-in-Charge, Hydropower Simulation Lab.
Laboratory Point of View
17
[2] Anto Joseph, D. Karthik, R R Semwal, Thanga Raj Chelliah, and Deepak Khare, "Dynamic
Performance of Pumping Mode of 250 MW Variable Speed Hydro-Generating Unit
Subjected to Power and Control Circuit Faults", IEEE Trans. Energy Conversion, Vol. 33,
No.1, 2018.
References:
[3] Anto Joseph, S. Raghu, Thanga Raj Chelliah and S V Appa Sarma,“Starting and Braking of
a Large Variable Speed Hydro-Generating Unit Subjected to Converter and Sensor Faults”,
IEEE Trans. Industry Applications, Vol. 54, No.4, 2018.
Looking into the future, the technology for effective redundancy for DFIM fed large variable
speed PSP needs to be designed to make confirmative of VSO in hydropower systems. Otherwise,
it shall be negative among policymakers and/or project developers.
But it is noted that the probability of operational state of power converter without redundancy per
year is 96.10% or even less due to grid disturbances [3]. Therefore, the overall benefit of the DFIM
fed variable speed PSP is reduced due to the inadequate power converter and control circuit
redundancy.
[1] Anto Joseph and Thanga Raj Chelliah,"A Review of Power Electronic Converters for
Variable Speed Pumped Storage Plants: Configurations, Operational Challenges, and
Future scopes", IEEE Journal Of Emerging and Selected Topics In Power Electronics, vol.
6, no.1, 2018.
Contact Us:
† AICTE, New Delhi.
† CPRI Bangalore.
† CDAC Thiruvananthapuram.
The laboratory acknowledges the support provided by the following funding
agencies, industries and research collaborators:
† THDC India Limited.
† Ministry of Shipping, New Delhi.
† Science and Engineering Research Board, New Delhi.
† Ministry of Electronics and Information Technology, New Delhi.
† JSK Lab Instruments, Chennai.
† Indian Maritime University Visakhapatnam.
† OPAL-RT Technologies, India.
Indian Institute of Technology Roorkee
Department of Water Resources Development and Management
Dr. Thanga Raj Chelliah, Senior Member IEEE
Phone : +91-1332-285554, +91-9456593798 (mobile)
Officer-in-Charge, Hydropower Simulation Lab
Email : [email protected]
Associate Professor of Hydro-Electric Systems &
@ IIT Roorkee
URL : http://www.iitr.ac.in/~WRT/thangfwt
Uttarakhand -247667 (India).
Acknowledgement