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Name: RAGHUNATHA RAMASWAMY

HIGHEST QUALIFICATION:
Ph.D. in POWER SYSTEMS,
Department of Electrical Engineering,
 INDIAN INSTITUTE OF SCIENCE,
 BANGALORE, INDIA

Ph.D. Thesis: "Development of Algorithms for Static Voltage Stability Assessment and Enhancement in Power Networks"

Contact Info:
Address:

#2557,
22nd Main, 30th Cross,
Banashankari 2nd Stage,
Bangalore 560 070,
India

Phone: +91-80-26713698 (Res); +91 98802 92675(Mobile)

E-Mail: power_apps@yahoo.com; Raghunatha@powerapps.org

Profile:

Vice President, Kalki-communication technologies Limited [Kalkitech, www.kalkitech.com ], Bangalore in charge of the Power System Business group with the following responsibilities
  • Responsible for Product development, Product improvement and Product releases in the domain area of transmission, distribution, generation, energy.
  • Power System Consulting, Basic and Detailed Engineering Services with or without associate consultants
  • Power System Studies, such as load flow, short circuit, relay coordination, transient stability, motor starting, reactive power optimization, harmonic analysis, insulation coordination, etc.
  • Marketing and Business Development in coordination with the Sales & Marketing Division. Web based advertising strategies.
  • Training engineers within the company and clients in Software Development, Engineering Consulting, and Operational Practices.
  • Training/Mentoring/Setting Goals/Guidance to project engineers
Prior to Kalkitech employment, a freelance consultant [from 2004 April to 2008 July] working on a number of projects for a number of reputed firms[MNC’s, National/Domestic firms, Independent individual consulting projects] with following contributions to client firm requirement
  • Coordination between different client firms when such need arose for mutual support for specific projects
  • Business enquiry generation, preparation of techno-commercial proposals resulting in specific projects to client firms
  • Project management , Project guidance to client company officers, responsible for technical reports and recommendations
  • Engineering resource training/mentoring and software support in the area of electrical power system analysis
  • Computerization for improved productivity and timely completion of projects.
AREAS OF EXPERTISE:

Electrical Engineer / Consultant / technical specialist since 1983 with Experience in
  1. Software Development and consulting engineering services related to Electrical Transmission Network Planning (Design and Operational planning), Industrial Distribution System Planning (Design and Operational planning)
  2. Energy Management System Software services for real time application
  3. Training and tutorial software services to Educational/Research Institutes in the area of Electrical Power Systems
  4. Power Application software services to other consulting engineering companies.
  5. Computer aided Power System Studies, Analysis, Recommendations, such as load flow, short circuit, transient stability, dynamic stability, voltage stability, transients, relay coordination, harmonics, long term demand projections etc. for electric and industrial utilities.
  6. Familiar with most aspects of VC++ programming as illustrated in the software product “PowerApps” developed as a hobby during spare time. The product illustrates, GUI, Graphics, OLE container and server applications, ODBC database interface to MS Access and MS Excel. Familiar with FORTRAN programming and ASP .Net.
  7. Operator and Despatcher training simulator.
  8. Contribution to business development to client/employer companies, in the area of electrical power system analysis through contacts and internet marketing
  9. Training to engineers of client companies in software development, consulting assignments in electrical engineering and power system studies.
  10. Training to O&M personnel of industries, in operational planning and power system protection.
Technical Analysis carried out as part of engineering
  • Power Flow (Load Flow) Analysis
  • Fault Analysis/ Short Circuit Calculations. (General standard algorithm, ANSI and IEC909 standard)
  • Transient Stability Analysis (Large Signal Performance of the system)
  • Dynamic Stability Analysis (Small Signal Performance of the system)
  • Reactive Power Optimization.
  • Transient Studies (EMTP: Electro Magnetic Transients)
  • Relay Coordination Studies (Overcurrent Relays, Earth Fault Relays, Distance Relays, Unit protections are listed later)
  • Harmonic Analysis & Filter Design (Estimation of distortion factors, sizing for filters)
  • Motor Starting Studies
  • Power System Stabilizer Application
  • Unconventional Load Modelling and simulation such as Arc Furnace Loads for dynamic simulation
  • Under Frequency, Under Voltage activated load-shedding schemes.
  • EMS (Energy Management System): Real Time Application Software development and services such as Network Topology Processor, Observability Analysis, Static State Estimation, Contingency Ranking and Evaluation, Operators' Load Flow, Optimal Power Flow, Static Voltage Stability Analysis etc.
  • Long term energy and power demand forecasting
  • Statistical load modeling based on field measurements of distribution feeders
  • Distribution system energy audit for identifying technical and commercial losses
  • Development of a suitable method for Transmission Pricing.
  • Protection of electrical equipments (Generators, Transformers, Motors, transmission lines, under/over voltage , frequency related protection, Bus protection)
Power Application Software Programs developed
  1. Power flow analysis (Newton, Fast Decoupled, Gauss Seidel)
  2. Fault analysis (General, IEEE/ANSI, IEC909 /G74 standard)
  3. Dynamic Stability Analysis (Eigenvalues Analysis, Small Signal Analysis)
  4. Multi Machine Transient Stability Analysis (Large signal performance)
  5. Static Voltage Stability Analysis (part of Ph.D. thesis work)
  6. Relay Coordination Software (Overcurrent phase/earth fault/high set, distance relay coordination)
  7. Optimal Power flow (Active/Reactive Power optimization), (linear/non linear program methods) with loss minimization, static voltage security enhancement, Voltage improvement objectives. (Part of Ph.D. thesis work)
  8. Contingency ranking and evaluation algorithms
  9. EMS modules (Network topology processor, Observability analysis, State Estimation). These modules were implemented at Eastern Regional Load Dispatch Centre, Calcutta, India
  10. Optimization of Excitation system parameters [Power System Stabilizer]
  11. Power System Stabilizer application using Eigenvalue analysis, Root Locus Technique and Bode Plots
  12. Motor Starting Calculations
  13. Harmonic analysis (Distortion factors, Frequency-Impedance scans, Filter Design)
  14. Long term demand forecast based on trend, regression, auto-regression, partial end use and scenario based analysis
  15. Cable Ampacity calculations (Neher-McGrath)
  16. Reliability evaluation of bulk power systems
  17. Automatic generation of one-line diagram [Graphics Application]
  18. Object oriented programming for power systems using distributable Power Foundation Classes [Part of PowerApps software]
  19. General GUI software for electrical system analysis providing a database interface, single line diagram interface for electrical system analyses software developed by other vendors, professionals, students and researchers. This software PowerGUI is supported under MS Windows OS and supports OLE features.

List of Major Projects Worked On

  • South India Viscose Ltd, India: Load Flow Studies, Transient Stability Studies, Short circuit studies.
  • Madhya Pradesh State Electricity Board, India: Load Flow Studies, Transient Stability Studies, Short circuit studies.
  • Gujarat State Electricity Board, India: Reactive Power Compensation and Transmission planning studies.
  • Orissa State Electricity Board, India: Load flow Studies, Transient Stability studies, Dynamic Stability studies. This study was carried out along with the Indian Institute of Science, Bangalore.
  • Ferro Alloys Corporation Ltd., India: Simulation of Arc Furnace loads, Stability simulation.
  • Karnataka Power Corporation Ltd. (KPCL), India: Power Flow Studies, Transient Stability Studies, Dynamic Stability studies, Power system Stabilizer application, Implementation of the Power System Analysis software and training to KPCL engineers.
  • Centre for Development of Advanced Computing (CDAC), Pune, India: Development of Parallel algorithms for the following analysis programs - Power Flow Analysis | Fault analysis | Transient stability | Dynamic stability analysis. Parallel algorithms were developed on a 4 transputer-based system and provided to CDAC.
  • Karnataka Electricity Board (Karnataka Power Transmission Ltd): This was a part of world bank aided project done by Indian Institute of Science, Bangalore, India. IDEA, Babcock Borsig Power, was an associate consultant for the project. The following studies were carried out along with the Indian Institute of Science, Bangalore. - Optimum Reactive Power compensation studies | Transient Stability studies | Load Rejection and Dynamic overvoltage studies.
  • ESSAR GUJARAT LTD., Bombay, India: Integrated Power System Studies consisting of Load Flow Studies, Short Circuit Studies, Stability Studies, Voltage flicker and SVC sizing studies, Harmonic Studies, Protection Studies, Islanded Operation studies.
  • Reliance Industries Ltd. Naroda, Gujarat, India: Load flow studies, Fault studies, Transient stability studies
  • Cochin Refineries Ltd, India: Load flow studies, Fault studies, and Transient stability studies.
  • Eastern Regional Load Despatch Centre (ERLDC), Power Grid Corporation of India Ltd, Calcutta, India: Development, Implementation, Training, Factory acceptance and Site acceptance tests for the following Energy Management System modules. - Network Topology Processor | Observability analysis | Static State Estimation | Operators Load Flow | Contingency Ranking & Evaluation | Static Voltage Stability Assessment. Centre for Development of Advanced Computing, (CDAC), Bangalore, India was the client for IDEA, Babcock Borsig Power, for this project. The above-mentioned software was installed at ERLDC, Calcutta through CDAC.
  • Aditya Cements, Chittorgarh, Rajasthan, India: Overcurrent Relay Coordination studies (Phase & Earth Fault), Harmonic Analysis studies, Load Flow Studies, Short Circuit studies, Transient Stability Studies.
  • EPE Power Corporation, Malaysia: Load Flow Studies, Stability Studies, Fault Analysis Studies
  • Indian Petro Chemicals Corporation Limited, Baroda: Load Flow Studies, Stability Studies
  • Ispat Industries Ltd., Geetapuram-Dolvi, Taluka-PEN, Raigad, Maharashtra: Overcurrent Relay Coordination studies (Phase & Earth Fault), Harmonic Analysis studies, Load Flow Studies, Transient Stability Studies.
  • Nobel Systems, San-Bernandino, CA, USA Technical Support related to Electrical Aspects for their GIS project for the city of Burbank, CA, USA. The scope involved design of database for the Substations, Transmission System, Street Lighting, and Distribution System for implementation in GIS system.
  • Larsen and Toubro Limited, Chennai, India: Development, Customization and implementation of the following MS-Windows 95 based Power System Analysis Software using MFC Visual C++ Version 5 and AutoCAD Release-14. - Load Flow Analysis | Short Circuit Calculation | Short Circuit Calculation (G74 - British Standard). | Transient Stability | Relay coordination (Overcurrent/Earth Fault relays). | Single Line Diagram Module with facilities for displaying results from Power System Analysis.
  • Indo-Rama Synthetics Limited, Nagpur-1999: Power Flow Studies, Short Circuit Studies, Transient Stability Studies, Under frequency/Under Voltage Load shedding scheme feasibility studies, Overcurrent/Earth Fault Relay Coordination
  • Oil and Natural Gas Commission, Uran, Maharashtra, India: System studies on behalf of M/s BHEL, Hyderabad, India. Load Flow Studies, Short Circuit Studies, Transient Stability Studies, Under Frequency/Under Voltage load shedding schemes evaluation and suggestion for improvement of the same, Dynamic Stability Studies, Overcurrent/Earth Fault relay Coordination Studies.
  • Indian Oil Corporation, Barauni, Bihar, India: System Studies on behalf of M/s BHEL, Hyderabad. Studies were carried out to determine the series reactor sizing for limiting the fault level at 6.6 kV bus. Load Flow Studies, Short Circuit Studies, Reactor sizing to limit short circuit currents, Motor Starting Studies with and without Autotransformer.
  • ABB Network Management, Sugar Land, TX Software customization and testing of Dispatchers training simulator for different projects. Long term energy demand and peak demand forecast for the 27 districts, 4 distribution companies and the state of the Karnataka.
  • Long term energy demand and peak demand forecast for the 27 districts, 4 distribution companies and the state of the Karnataka. Software Used
  • Study of sharing Wheeling and Banking Charges among ESCOMS and the KPTCL for BESCOM, KARNATAKA Report Front Page
  • System Studies for IOCL, Guwahati on behalf of the BHEL, New Delhi The scope involved Power Flow Studies, Short Circuit Studies, Relay Coordination Studies, Transient Stability Studies, Capacitor Switching Studies. Report Front Page
  • Part of system studies for NALCO, Angul, Orissa on behalf of M/s DasturCo Ltd. Kolkata The activities involved client interaction, technical discussions, harmonic measurements, and study scope finalization.
  • Reactive power compensation studies for NALCO, Damanjodi, Orissa to overcome low voltage problems, power factor improvement, and recovery of the plant following separation from the grid. This was the last project done while working for Power Research & Development Consultants (P) Limited.
  • Load flow studies for M/s Sri Balaji Biomass Power Pvt Ltd On behalf of POET Consultants Pvt Ltd. Bangalore
  • Load flow studies for M/s Toyota Kirloskar Motors Ltd On behalf of POET Consultants Pvt Ltd. Bangalore.
  • Line constants evaluation and switching over voltage studies for 220 kV, 33 kV transmission network for M/s VA-TECH REYROLLE Ltd On behalf of POET consultants Pvt Ltd. Bangalore. This work was done as a part of Insulation Coordination task.
  • EMTP studies for SIEMENS in connection with breaker failure analysis. The study was conducted for M/s POET Consultants Pvt Ltd. Bangalore, who were consultants to SIEMENS.
  • Load flow studies for HPSEB (CPRI Bangalore Project). Few load flow results were obtained using PowerApps software from the Simpow software data files of CPRI, Bangalore. Load modeling using statistical approach and field measurements as input data (CPRI project/assignment).
  • Energy Audit for distribution feeders of APSPDCL (CPRI project)- Ongoing project
  • Transmission pricing methodology and software development for Maharashtra State Electricity Regulator Commission (CPRI project) Ongoing Project.
  • Integrated system studies for M/s Essar Steel Ltd (I.D.E.A project). The studies covered, load flow studies, short circuit studies, stability studies, motor starting studies, dynamic simulation of cyclic loads, complete evaluation of protection system, harmonic measurements and studies, interaction with vendors and other consultants. See Sample Relay coordinatin Results in SLD
  • Consultancy to M/s Honeywell Technology Solutions Lab, Bangalore with respect to Operator Training Simulator for Quaraiah Power Plant, Saudi Arabia Ongoing project. However, this consultants role is completed by December 2005 at the end of initial design stage of the electrics simulation.
  • Electrical System Studies for M/s Al Ghazal Iron Works, Dubai on behalf DANWAY LLC, Dubai.
  • Electrical System Studies for Zayed University distribution system project of DANWAY LLC, Dubai
  • System studies for Karnataka Power Corporation Ltd in respect of complete protection system evaluation of Raichur Thermal Power Station Substation. The entire KPTCL system will be represented in the studies as apart from the protection system evaluation, regular system studies are also involved. Neighboring systems of Andhra Pradesh and Tamil Nadu will be represented to the extent needed for the studies. The initial technical proposal for this project was prepared by this consultant and was further refined by Central Power Research Institute, Bangalore. This project will be carried by Central Power Research Institute, Bangalore with this consultant as one of the study team member. The PowerApps software developed by this consultant will be used for a portion of the study Ongoing Project. The scope of this project includes training of KPCL engineers on power system studies apart from the consulting work (system studies)
  • Power Evacuation Studies for Wind Farm Generators Bhoruka Power Corporation Limited( http://www.bhorukapower.com/ ) at Gadag, Karnataka for M/s POET Consultants (P) Limited See Sample Exhibit
  • Short Circuit Calculations as per IEC 909 standard for ITCL, Project Trident, Hardwar, Uttaranchal (Food Business Segment), On behalf of M/s POET Consultants (P) Limited. Similar studies were also performed for the project ITCL Pune.See Sample Exhibit Another Exhibit (Multiple Page Report)
  • System Studies for Rourkela Steel Plant, on behalf of CPRI, through I.D.E.A Chennai. . See Exhibit
  • System Studies for Khanna Paper Mills on behalf of M/s POET Consultants (P) Limited. See Exhibit See Sample Stability Plots
  • System Studies for IOCL Gujarat Refinery - The project was awarded by BHEL, Hyderabad to I.D.E.A Chennai-The scope of the studies includes, load flow, short circuit, transient stability, load shedding, harmonic and protection system studies. The studies are with respect to addition of 2 x 30 MW GT to the existing CPP of Gujarat Refinery.
  • System studies for ELME PETRO-CHEMICALS COMPANY LIMITED, Port HARCOURT, Nigeria. A Project through I.D.E.A-AEE (Pvt) Limited, Chennai. The scope of this project includes Load flow studies, short circuit studies, transient stability studies, Motor starting studies and complete protection system studies.
  • System Studies for Riddi Siddi Gluco Biols Limited, Gokak, Karnataka. A project through I.D.E.A-AEE (Pvt) Limited, Chennai. The scope of the studies include load flow studies, short circuit studies, transient stability studies, investigation of synchronization problems, protection system studies.
  • Complete System studies for M/s ESSAR Steel Hazira Limited for their new steel plant with 2x600 MW CPP generations with interconnection with existing steel plant at Hazira. The scope of the studies involves all routine system studies applicable, complete protection system studies and technical support on all major issues that may arise during the course of the project. This project is being carried through M/s I.D.E.A - AEE (Pvt) Limited, Chennai.
  • Short Circuit Studies for 9.9 MW Bio Mass Power Plant of Power Prospect Co. Ltd, Thailand, through SMEC, Malaysia, in association with I.D.E.A-A.E.E. (P) Ltd, Chennai.
  • Complete System studies for GMR Hyderabad International Airport. This is a part of I.D.E.A – A.E.E. (P) Ltd, Chennai
  • System Studies for MASDAR 10 MW Solar Power Plant, for M/s Danway Dubai, UAE PO Box – 50048. A Kalkitech, Bangalore Project
  • System Studies for switch gears 1 to 7 required for Motor City Plant 1, for M/s Danway Dubai, UAE. A Kalkitech Bangalore Project.
  • Complete Power System Studies for Power Distribution Project for Direct Reduction Plant & Steel Melting Shop of M/S Emirates Steel Company L.L.C. at Abu Dhabi. The Project is carried out for ABB Bangalore, along with M/s C.R.K.Associates Bangalore. A Kalkitech, Bangalore Project
  • Power System Studies for Elme Petro Chemicals Limited, Indorama, Port Harcourt, Nigeria. The objectives of the studies is to assess techno-commercial feasibility studies of various power evacuation schemes to PHCN (Power Holding Corporation of Nigeria) and other customers for short term and long term requirements. The project is carried out along with detailed engineering consultant M/s POET consultants (P) Limited, Bangalore. A Kalkitech, Bangalore Project
  • Power System Studies for Hail2 Power Project, Saudi Arabia, for Design Group, Bangalore, ILF Consulting Engineers, Abu Dhabi
  • Transient Stability – custom software services to Areva T&D India Limited, Noida, for their Bhutan LDC Project.
  • Power System Training Courses [Protection System and Relay Coordination] for Schneider Electric FZE, Dubai, UAE. Participants are from various utilities from Abu Dhabi. Course organized by ADGAS, Abu Dhabi Gas Liquefaction Company Limited
  • Power System Training Courses [Power Transformers] for Schneider Electric FZE, Dubai, UAE. Participants are from various utilities from Abu Dhabi. Course organized by ADGAS, Abu Dhabi Gas Liquefaction Company Limited
  • Power System Studies for Capital Centre Project, for M/s Danway Dubai, UAE PO Box – 50048. A Kalkitech, Bangalore Project.
  • Protective Relay Coordination study for GDES ME-JLT, Dubai, UAE [http://www.globaldes.com/]. A Kalkitech, Bangalore Project.
  • LV Protection Setting Calculation for RWP, BOP, 130K and 140K Feeders, Client GDES,ME-JLT, UAE [http://www.globaldes.com/]. A Kalkitech, Bangalore Project.
  • Training Program to Siemens Engineers at Vadodara, Gujarat, India through POET Consultants Pvt Limited on [1]. SCADA and Related Communication. [2] HVDC Transmission. [3] FACTS applications. A Kalkitech, Bangalore Project
  • Further Additional order on Transient Stability – custom software services to Areva T&D India Limited, Noida, for their Bhutan LDC Project.

Implementation & Training on Power System Analysis Software - Client List

  • Karnataka Power Corporation Ltd, Karnataka, India
  • National Power Training Institutes (Formerly Power Engineers Training Institute) New Delhi, Badarpur, Nagpur, Durgapur & Neyveli., India
  • CESC Ltd., Calcutta., India
  • BLDEA college of Engineering, Bijapur, Karnataka, India
  • BVB college of Engineering, Hubli, Karnataka, India
  • Annamalai University, Annamalai Nagar, Tamil Nadu, India
  • Crompton Greaves Ltd., Mumbai and Chennai, India
  • University College of Engineering, Burla, Orissa, India
  • Regional Engineering College, Trichy, Tamil Nadu, India
  • Regional Engineering College, Calicut, Kerala, India
  • Allen Bradley India Ltd., Hyderabad, India.
  • Central Power Research Institute, Bangalore, India
  • Projects Development & India Ltd., Noida, Ghaziabad, NewDelhi, India
  • Larsen & Toubro (ECC) Limited, Chennai, India

    List of Technical Publications

    • "Effect of Generator Modeling on Power System Stabilizer parameters", 5th National Power Systems Conference, Central Power Research Institute, Bangalore India, September 8-10, 1988.
    • "Incorporation of static var compensators and power system stabilizers for dynamic stability evaluation", 6th National Power System Conference, Indian Institute of Technology, Bombay, India, June 4-7, 1990.
    • "An Efficient Heuristic Algorithm for Voltage Improvement and Reactive Power Planning for Practical Large Scale Power Systems", Presented at the Third International Symposium on Electricity Distribution and Energy Management, 27-29, October 1993, Singapore.
    • "A Fast Algorithm for Reactive Power Optimization for Planning and On-line Applications", Presented at 9th National Convention of Electrical Engineers, November 1993, India.
    • "Fast Evaluation of System Voltage Stability Indications for Large Scale Power Systems", Presented at 9th National Convention of Electrical Engineers, 26-27, November 1993, India.
    • "Voltage Stability analysis of Typical Indian Systems Using a Simple, Fast and Efficient Technique", 8th National Power Systems Conference, 14-17, December 1994, New Delhi, India
    • "An Algorithm for Fast Evaluation of Voltage Stability - Comparative Evaluation with Other Techniques", Presented at two-day workshop on "Voltage Instability/Collapse in Power System", at Central Power Research Institute, Bangalore, August 11-12, 1994.
    • "A New and Fast Technique for Voltage Stability Analysis of a Grid Network Using System Voltage Space", Published in International Journal of Electrical Power & Energy Systems, Elsevier Science Ltd. UK.
    • "Optimal Static Voltage Stability Improvement Using a Numerically Stable SLP Algorithm, for Real Time Applications", Published in International Journal of Electrical Power & Energy Systems, Elsevier Science Ltd. UK.


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