Kenneth Smith

 

Electrical Engineer

 

 

 

 

Summary

 

I am an Electrical Engineer with over 25 years’ experience including post-graduate research, teaching and international consultancy.  I specialise in the analysis and modelling of electromagnetic transients in power systems.  Since 2002 I have worked with Mott MacDonald where I am presently Practice Leader for the global power systems analysis business supporting teams in Glasgow, Manchester, Abu Dhabi, Boston, Houston and Johannesburg.

 

 

 

Professional Memberships

 

Chartered Electrical Engineer

 

Fellow of the Institution of Engineering and Technology

 

Senior Member of the Institute of Electrical and Electronic Engineers

 

Fellow of the Higher Education Academy

 

 

Education

 

B.Sc.(Engineering), University of Aberdeen, 1988

 

Ph.D., University of Aberdeen, 1992

 

 

Work Experience

 

2015 – present 

Practice Leader Power Systems, Mott MacDonald.

 

2002 – 2014 

Senior Electrical Engineer, Mott MacDonald.

 

1996 – 2002 

Lecturer in Electrical Power Systems, Heriot Watt University Edinburgh.

 

1991 – 1996 

Lecturer in Engineering Science, University of Aberdeen.

 

1988 – 1991 

Research Assistant, Department of Engineering, University of Aberdeen.

 

1988

Summer placement, GEC Turbine Generators, Stafford.

 

1987

Summer placement, Wood Group Industrial Controls, Aberdeen.

 

 

 

Awards and professional service

 

Honorary Professor in Electrical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh

Associate Editor – IEEE Transactions on Industry Applications – Power Systems Committee

Elected Member of Council of the Institution of Engineering and Technology, 2011 to 2014

Best Technical Paper Award – Mott MacDonald Power Unit, March 2014

Member of team that received the Climate Change Business Journals (CCBJ) 2012 Business Achievement Award in the category Project Merit: Transmission for Renewable Integration for the development of MOWFO

Best Technical Paper Award – Mott MacDonald Power and Communications Unit, March 2011

IEEE Industry Applications Society Industrial and Commercial Power Systems Department, Power Systems Committee Paper Award for 2007, March 2008

Best Technical Paper Award – Mott MacDonald Energy Unit, March 2008

IEEE Industry Applications Society Industrial and Commercial Power Systems Department Ralph H Lee Award for 2006, March 2007

Milne Award for Innovation – Mott MacDonald Group Award, March 2007

Technology Innovation Award – Mott MacDonald Energy Unit, March 2004

Institute of Marine Engineers Stanley Gray Award – Offshore Technology, March 1999

Institute of Marine Engineers Stanley Gray Award – Marine Electrical Technology, March 1994

Northern Ireland Electricity Prize, 24th Universities Power Engineering Conference, Queen’s University of Belfast, September 1989

 

 

 

Major projects


National Grid South Coast Dynamic Study – Project director for major study to determine requirements for reactive compensation devices for dynamic voltage support on the UK 400 kV South Coast network. This work involved a team of 7 engineers developing high fidelity models of reactive compensation devices including saturable reactors, SVCs, STATCOMS, and current fed and voltage fed HVDC convertor terminals in PSCAD-EMTDC. These models were then converted to fundamental frequency dynamic models in DigSilent and then integrated into National Grids full GB network model.

National Grid 400 kV London Cable Project – Project director for project that developed full ATP-EMTP computer model of the proposed 400kV London Cable Replacement Works. A full range of switching transient studies were performed and reported including switching energisation and de-energisation of the 400kV circuits, fault and fault clearing transients including circuit breaker transient recovery voltage analysis.

Mambong Reactive Compensation, Sarawak – Technical review of network impedance calculations, capacitor sizing and C-Filter parameter component definitions for 132kV and 275kV options at the SEB Mambong Substation.

Sellindge Saturable Reactor Replacement Study – Conducted a study to assess the dynamic reactive compensation performance of the existing saturable reactors at the English Channel HVDC link using PSCAD-EMTDC. The proposed replacement options including the TCRs, auto-switched harmonic filters, auto-switched shunt reactors were assessed and their dynamic overvoltage suppression performances were compared against that of the existing saturable reactors.

UK Grid Network Capacity Project – Project carried out for the Energy Technologies Institute (ETI) to investigate technologies that may be able to enhance the capacity of the existing onshore UK electricity transmission and distribution networks, thereby supporting the ETI’s overall goal of accelerating the deployment of technologies that will help reduce greenhouse gas emissions. One area of work concentrates on the novel FACTS (Flexible AC Transmission System) technologies with the potential to release capacity in the UK transmission and distribution networks. The work involved modelling of the various technologies integrated into the networks to determine their effectiveness and requirements for such integration. It also included analysis of environmental and social impacts and of the barriers to development and deployment. The second area of work concentrated on the use of multi-terminal HVDC transmission and its integration within the existing UK transmission and distribution networks. The work involved detailed modelling of multi-terminal HVDC to assess its performance, impact and potential interactions arising from its use. It also included analysis of the requirements for such integration, the benefits case for conversion of existing AC lines, and of the barriers to development and deployment.

Calpine Subsynchronous Resonance – Conducted a high level screening study of the electrical transmission network at Sutter County, California to assess the potential subsynchronous resonance problem at Calpine power plant. Work carried out includes PSS/E model preparation and setup, conversion of PSS/E raw data into PSCAD/EMTDC format to calculate the system natural frequencies. These are used to predict the possibility of a sustained torsional vibration of the Sutter generators shafts being excited.

Korndorfer Starter Surge Arrester Specification and Placement – Carried out detailed analysis for the rating and placement of surge protection devices on a Korndorfer Starter transformer for offshore compressor starting application following catastrophic failure of an existing installation. The analysis included review of technical specification of existing gapped surge arrester devices, review of placement and voltage and energy ratings of surge protection devices, and specification of alternative metal oxide, gapless – arresters. Theoretical analysis was back up by detailed electromagnetic transient modelling.

Eirgrid East-West Interconnection Studies, Harmonic Impedance Study – Supervised development of a detailed model of Eirgrid’s 220kV – 400kV system for harmonic impedance study using PSCAD/EMTDC. This work included conversion of PSS/E raw data into PSCAD format by using ETRAN program. Detailed transmission lines, cables, transformer and shunt compensations were modelled separately to consider frequency dependency of the individual component impedances. The result of the harmonic impedance scan was used for the harmonic filters design in the converter station of the interconnection.

MOWFO – Supervised and supported engineering staff developing the MOWFO program. MOWFO has been developed a tool to improve the design of the electrical inter-array cable systems for Offshore Wind Farms. The tool innovatively applies an artificial intelligence generic algorithm to solve a complex mathematical problem. It also elegantly interacts with existing software to obtain intermediate results. By optimising the layout for total cable length, cost and lifetime operational losses, considering a range of turbine string configurations including radial, branched and mixed designs, the tool allows offshore wind developers to reduce their transmission-related CAPEX significantly.

Lightning Protection for Overhead Lines – Developed computer program LPOH to assess the lightning failure rates of overhead transmission and distribution lines. Based on the geometrical model of the final stroke of the lightning discharge, the program takes account of shielding provided by earth wires and forestation parallel to the line, as well as the statistical variation of the discharge parameters.

Review of Voltage Fed Drive Technologies – Technical review of literature on most recent developments in power electronics and drive technologies for voltage fed inverter applications. Assessment of short term advances in drive topologies and assessment of their potential application in large compressor driver duties.

Circuit Breaker Transient Recovery Voltage (TRV) Calculations – Carried out studies to investigate the TRV duty on 33kV circuit breakers following catastrophic breaker failure when interrupting motor starting current associated with large motor and captive (unit) transformer.

All-Electric LNG Plant Responsible for co-ordinating power system studies element for basic design engineering package (BDEP) of a future all-electric LNG plant. Analysis included conventional load flow, short-circuit and transient stability studies. Additional work required due to the unique characteristics of the all-electric design included assessment of harmonic filter design, system earthing philosophy and integrated studies to assess variable speed drive inter-harmonic current signatures and the risks of excitation of a power plant gas turbine or steam turbine generator torsional vibration.

Sub-synchronous Torsional Interaction Technical review of literature on torsional vibration of turbine generator sets and its excitation by series compensated transmission lines, HVDC controllers and inter-harmonics generated by power electronic converters.

Inter-harmonics and Shaft Torsional Vibration Study – Analysis of variable frequency LCI drives systems used for compressor drive applications. A time-domain model was developed which was verified using alternative frequency-domain models based on modulation theory. The variation of inter-harmonic current magnitudes and frequency with key system parameters and drive operating conditions was determined. Model extended to include the shaft and inertias of mechanical drive systems.

Technical Review of Transformer Failures – Reviewed technical reports prepared by circuit breaker and transformer vendors following failures of two transformers at a large aluminium smelter.

LNG Plant Extension Power System Studies – IPSA load-flow, short-circuit and transient-stability studies and VHARM harmonic penetration studies to assess a planned expansion to an existing LNG plant. Issues included control of new generation connected at 132kV with inter-bus transformer links to existing 33kV generation, fault levels on existing plant and harmonic distortion levels.

Future All-Electric LNG Plant Power System Studies IPSA studies to predict the steady state load-flows, short-circuit levels, transient performance and harmonic distortion levels of a conceptual all electric LNG plant. Total electrical load is 840MW with 13 VFDs driving compressor trains, with 990MW of power generation in a combined cycle configuration.

LNG Plant Dynamic Modelling A CCGT plant was modelled in the time domain to examine its transient response to disturbances. The client required validation of the CCGT plant response to ensure that an all-electric LNG plant could be kept running in the event of a turbine trip, boiler trip or LNG compressor trip. VisSim software was used for the study. Development of the CCGT model involved development and validation of gas turbine, heat recovery boilers, steam pipe and header models and integration of these with an electrical system model.

LNG Plant Harmonic Modelling – Developed detailed frequency domain models of proposed all-electric LNG plant. Harmonic current injections for multiple LCI drive converters were developed from first principles to allow the impact of variable speed and variable load operation of 13 drives to be analysed. Harmonic penetration studies completed by injecting the calculated harmonic into an IPSA model of the system.

LNG Plant Harmonic Filter Switching Transient Analysis Developed a PSCAD-EMTDC model of a large industrial power system to assess the likelihood of transient over-voltages arising due to the back to back switching of 33kV harmonic filters.

Harmonic Measurements and Drive Assessment – Extensive series of measurements on an 11kV distribution network at a major UK steel works to establish impact of large variable speed drives (VSDs) with modern, active PWM front end rectifiers. Measurements considered both the steady state harmonics as well as the transient performance of the VSDs and were used to confirm harmonic predictions of frequency domain harmonic penetration studies. Study results form basis of technical paper presented at 2005 Universities Power Engineering Conference.

Harmonic Measurements and Analysis – Harmonic measurements were taken at all voltage levels (11.5/66/132kV) at a large aluminium smelter in the Middle East. Measurements were used to establish benchmark levels for existing harmonic distortion levels before a major expansion of the plant.

Electrical Studies for Downhole ESP Pumping Scheme – Steady state harmonic, electromagnetic transient, motor starting and voltage drop calculations.

Transient Analysis of Is Limiter Operation – Developed PSCAD-EMTDC model of a large industrial power system which contains three IS limiter devices. Purpose built models developed to simulate the IS limiter tripping logic and switching operation. Analysis showed transient current oscillations established by correct tripping of one IS limiter device could result in incorrect operation of a second IS limiter. This explained incorrect IS limiter operations that had been observed on site.

Analysis of Is Limiter Operation under Pulse Power Loading – Developed PSCAD-EMTDC model to investigate operation of IS Limiter devices when used to protect paralleled switchboards at 36kV substation supplying pulsed power loads at the UK, Joint European Torus (JET) Nuclear Fusion Research Facility. A particular concern was the response of the IS Limiter tripping logic to the transients associated with the pulsed power loads at JET.

275kV/132kV Grid Protection Study – Developed detailed PSCAD-EMTDC time domain model of a transmission system to assist protection engineers identify faults associated with incorrect operation of protection system. Model building was partly carried out in client’s offices in Malaysia and included user written representations of auto-transformers and AVRs. Study results form basis of technical paper presented at 2004 IEE Protection Conference.

132kV Insulation Co-ordination Study – Developed PSCAD-EMTDC time domain model of 132kV GIS substation, cable feeders and over-head lines to confirm ratings and placement of surge arresters. Model included travelling wave representations of tower, voltage-time curves to determine instants at which back-flashovers occurred, travelling wave models of cables and the GIS buswork and frequency dependent surge arrester models.

400kV Cable and Shunt Reactor Switching Study – Developed PSCAD-EMTDC time domain model to predict switching transient performance of a 20km 400kV cable. The model included all cable phase and sheath voltage limiters, compensation shunt reactors and 400kV surge arresters. The model was used to determine the maximum over-voltages for different cable and reactor switching operations with different point on wave switching schemes.

Wind Farm Transformer Energisation Studies – Developed PSCAD-EMTDC models of a number of wind farms site to determine the maximum number of wind farm turbine transformers that can be energised simultaneously without exceeding the maximum tolerable voltage dip on the utility network.

Offshore Platform Interconnection Study – IPSA studies to identify optimum interconnection voltage for four existing offshore installations by an ac ring main. Studies considered interconnection voltage and rating, as well as transient stability and harmonic issues.

33kV Capacitor Placement Study Developed PSCAD-EMTDC model of an extensive 33kV rural distribution system and carried out capacitor switching analysis to predict transient over-voltages during capacitor energisation and TRV for capacitor breaker duties. Developed fast fronted time domain model for lightning arrester selection/insulation co-ordination for proposed capacitor banks.

11/33kV Transformer Inrush Study – Developed PSCAD-EMTDC model of an interconnected offshore power system to predict the transient inrush current when energising an inter-platform link. Model included generators, AVRs, governors and the highly non-linear voltage-magnetizing current characteristics of the transformer core.

3.3/15/0.400kV Sub-sea Transmission Link Study – Developed PSCAD-EMTDC model of system limited onshore 3.3kV system generation and 56km of 15kV sub-sea cable to remote platform. Study was initiated to investigate transient response of the system following failure of the sub-sea cable. Analysis demonstrated that the shunt capacitance of the 15kV cable and the onshore source impedance formed a tuned circuit at the fifth harmonic which could be temporarily excited, leading to dynamic over-voltages when the offshore transformer was energised. Practical switching arrangements to limit the extent of such transients were identified.

 

 

 

PUBLICATIONS

 

Journal Publications:

“Designing passive harmonic filters for an aluminium smelting plant.” IEEE Transactions Industry Applications, March/April 2011, pp 973-983, Badrzadeh, B, Smith KS, and Wilson RC.

“Resonance excited by transformer inrush current in inter-connected offshore power systems.” IEEE Industry Applications Society Magazine, Sept/October 2010, pp 14-19. Turner, RA; and Smith, KS.

“Torsional resonance risk management in islanded industrial power systems supplying large VFDs.” IEEE Transactions on Industry Applications, IEEE Transactions Industry Applications, Nov/Dec 2008, pp 1841-1850. Smith, KS; and Ran, L.

“Step on the gas – electrical network studies for liquefied natural gas plants.” IEEE Industry Applications Society Magazine, September 2008, pp 68-73. Wilson, RC; Dall, C; and Smith, KS.

“Evaluation of the effects of rotor harmonics in a doubly-fed induction generator with harmonic induced speed ripple.” IEEE Trans on Energy Conversion, December 2003, Vol 18, No4, pp 508-515. Liao, Y; Ran, L; Putrus, GA; and Smith, KS.

“Active filter used as a controlled reactance to prevent harmonic resonance in interconnected offshore power systems.” IEE Proceedings – Generation, Transmission and Distribution, July 1999, Vol 146, Issue 4, pp 393-399. Smith, KS; and Ran, L.

“Analysis of transformer inrush transients in offshore electrical systems.” IEE Proceedings; Generation, Transmission and Distribution, January 1999, Vol 146, Issue 1, pp 89-95. Smith, KS; Ran, L; and Leyman, B.

“Electrical Inter-connection Offshore; the Benefits and the Limitations”. Trans. Inst. Marine Engineers, 1998, Vol 110 (4) pp 207-228. Smith, KS; Ran, L; and Yacamini, R.

“PWM drives – voltage type harmonic sources in power systems.” IEE Proceedings – Generation, Transmission and Distribution, May 1998, Vol. 145, Issue 3, p.293-300. Smith, KS; and Ran, L.

“Monitoring torsional vibrations of electro-mechanical systems using stator currents.” Transactions of the American Society of Mechanical Engineers, Journal of Vibration and Acoustics, Vol 120, January 1998, pp 72-79. Yacamini, R; Smith, KS; and Ran, L.

“Dynamic modelling of a unified power flow controller.” IEE Proceedings – Generation, Transmission, and Distribution, Vol 144, No 1, January 1997, pp 7-12. Smith, KS; Ran, L; and Penman, J.

“Real time detection of intermittent misfiring in a voltage fed PWM inverter induction motor drive.” IEEE Trans. on Industrial Electronics, Vol 44, No 4, August 1997, pp 468-476. Smith, KS; Ran, L; and Penman, J.

“Input current harmonic analysis of pseudo 12-Pulse, 3-Phase to 6-Phase cycloconverters.” IEEE Trans. on Power Electronics, Vol 11, No 4, July 1996, pp 629-640. Smith, KS; and Ran, L.

“Torsional vibrations in induction motor drives during start-up.” Transactions of the American Society of Mechanical Engineers, Journal of Vibration and Acoustics, Vol 118, April 1996, pp 242-251. Ran, L; Smith, KS; and Yacamini, R.

“Noise generation in marine motors.” Trans. Inst. Marine Engineers, Vol 107, 1995, Pt 4, pp 241-256.
Yacamini, R; Chang, SC; and Smith, KS.

Cycloconverter configurations and controllers for marine propulsion applications.” Trans. Inst. Marine Engineers, Vol 107, 1995, Pt 2, pp 83-99. Ran, L; Smith, KS; and Yacamini, R.

“Voltage stability assessment of isolated power systems with power electronic converters.” IEE Proceedings, Gener. Trans. Dist., Vol 104, No 4, July 1994. Smith, K S; and Ran, L.

Cycloconverter drives for ship propulsion.” Trans. Institute of Marine Engineers. Vol 105. Pt 1, 1993, pp 23-52. Smith, KS; Yacamini, R; and Williamson, AC.

Conference Papers Published as Proceedings:

“Assessment of Saturable Reactor Replacement Options”, International Conference on Power System Transients, International Conference on Power System Transients - IPST 2013, Vancouver, Canada, 2013. Kho D.K.A, Smith, K.S.

“Offshore Wind Farm Inter-Array Cable Layout”, IEEE PowerTech Conference, Grenoble, France, 2013, Jenkins, A, Scutariu, M., Smith, K.S.

“Challenges to Power System Planning In Presence of SMART GRIDs”, CIGRE Lisbon Conference, 2013, Rizvi, S.M., M E Mahrous, M.E., Smith, K.S.

“Investigation of a Cascaded Tripping Incident”, IEEE Power Engineering Society General Meeting, San Diego, July 2012, Badrzadeh, B., Wilson, R.C., Smith, K.S.

‘Assessing P28 Guidelines for Renewable Generation Connections’, International Conference on Power System Transients, Delft, The Netherlands, 2011, Turner R, Smith KS.

‘Analysis of Very Fast Transient Overvoltages in a proposed 275 kV GIS Substation’, International Conference on Power System Transients, Delft, The Netherlands, 2011, Kho DTA, Smith KS.

‘Modelling and System Level Study of a Network Powered by Photovoltaic Solar Generation’, IEEE International Energy Conference and Exposition, ENERCON 2010, Manama, Bahrain, Singh NK, Sambhi, D. Smith KS.

“Smart Grid Technology Review within the Transmission and Distribution Sector”, IEEE Power Engineering Society Conference, Innovative Smart Grid Technologies in Europe, 11-13 October 2010, Gothenburg, Sweden. Hamidi, V., Wilson, R.C., Smith, K.S.,

“Designing Harmonic Filters for an Aluminium Smelting Plant”, IEEE Industry Applications Society Annual Meeting, Houston, USA, October 2010. Badrzadeh, B, Wilson, R.C., Smith, K.S.

“Analysis of switching over-voltages in a three-ended 400kV cable system.” to be presented at UPEC2009, Glasgow, Sept 2009. Kho, DTA; Greenwood, MD; and Smith, KS.

“Alternatives for high-power electronic converters, switching devices and electric machines for very large wind farms: A technological and market assessment.” European Wind Energy Conference, Marseille, France, March 2009. Badrzadeh, B; Smith, KS; and Wilson, RC.

“Assessment and enhancement of grid fault induced torsional oscillations for induction generator based wind turbines.” 2009 IEEE PES Power Systems Conference and Exposition, March, 2009, Seattle, Washington USA. Badrazadeh, B; Salman, S; and Smith, KS.

“Resonance excited by transformer inrush current in inter-connected offshore power systems.” IEEE Industry Applications Society Annual Meeting, Edmonton, Canada, October 2008. Turner, RA; and Smith, KS.

“Long term dynamics of islanded coal fired station with fluctuating loads.” Power Systems Computation Conference, Glasgow, UK, July 2008. Mayer, J; and Smith, KS.

“Torsional resonance risk management in islanded industrial power systems supplying large VFDs.” IEEE Industry Applications Society Annual Meeting, New Orleans, September 2007. Smith, KS; and Ran, L.

“Maximising production in LNG liquefaction plants.” 2nd Annual LNG Tech Global Summit, Rotterdam, September 2007. McLeay, K; Smith, KS; and Wilson, RC.

“JET fusion experiment power supply upgrade.” International Power Systems Transients Conference – IPST 2007, Lyon, France, June 2007. Smith, KS.

“Electrical network design studies for natural gas liquefaction plants.” IEEE Industry Applications Society Annual Meeting, Tampa, Florida, October 2006. Wilson, RC; Dall, C; and Smith, KS.

“Electrical network studies for industrial/petrochemical plants.” Universities Power Engineering Conference, UPEC 2006, Newcastle, UK, September 2006. Dall, C; Smith, KS; and Wilson, R.

“Investigation of the harmonic characteristics of variable speed drives with active rectifiers installed at a steel works.” Universities Power Engineering Conference, UPEC 2005, University College Cork, Ireland, September 2005. Smith, KS; and Court, C.

“Transformer inrush studies for wind farm grid connections.” International Power Systems Transients Conference – IPST 2005, Montreal, June 2005. Smith, KS.

“Analysis of unexpected fault current limiter operation using EMT program.” International Power Systems Transients Conference – IPST 2005, Montreal, June 2005. Hibbert, MS; and Smith, KS.

“Prediction of transmission system protection performance.” Manitoba HVDC Research Centre Journal, Winter 2004/05, pp 4 – 5. Smith, KS; Humphreys, DC; Lawton, K; Vong, NM; Yong, YP; and Eng, J.

“Simulation aid to the prediction of transmission system protection performance.” IEE Power System Protection Conference, Amsterdam, April 2004. Smith, KS; Humphreys, DC; Lawton, K; Vong, NM; Yong, YP; and Eng, J.

“Calculation of transformer core losses with nonlinear loads.” Harmonics and Quality of Power, 2002. 10th International Conference, Volume 2, 2002, pp 682 – 687. Ran, L; Smith, KS; Liao, Y; and Putrus, GA.

“Expert system for voltage control and synchonised switching command in a 400kV power substation.” IEEE Power Technology Conference, Porto, Portugal, 10 – 13 September 2001. Cipcigan, L; Chindris, M; Smith, KS; and Funabashi, T.

“Frequency dependent time domain models for calculating switching transients in PWM drives.” Power System Technology, 2000. Proceedings. PowerCon 2000. International Conference on Volume 1, 4-7 Dec. 2000 pp 205 - 210. Kunakorn, A; Hiley, J; and Smith, KS.

“Transformer core saturation caused by power switching devices.” Proceedings of the 34th Universities Power Engineering Conference 1999, September 1999. pp 475-478. Smith, KS; and Ran, L.

“Simulation of synchronised switching of an inductive load in a 400kV network.” Proceedings of the 34th Universities Power Engineering Conference 1999, September 1999. p 123-126. Cipcigan, L; Hiley, J; Smith, KS; Ran, L; and Ungureanu, P.

“Time domain modelling of commutation spikes in synchronous generators supplying rectifiers using EMTDC.” Proceedings of the 34th Universities Power Engineering Conference 1999, September 1999. pp 5-8. Kunakorn, A; Hiley, J; and Smith, K S.

“Refurbishment of an 800kV impulse generator.” Proceedings of the 34th Universities Power Engineering Conference 1999, September 1999, pp 292-295. Habtay, Y; Hiley, J; Smith, KS; King, PC; and Paraskavas, G.

“A time domain equivalent circuit of the inverter-fed induction motor.” IEE Electrical Machines and Drives Conference, September 1999. pp 1-5. Smith, KS; and Ran, L.

“Transient voltage distribution and interturn voltages in a synchronous generator during the commutation of a thyristor bridge load.” IEE Electrical Machines and Drives Conference, September 1999. pp 203-207. Kunakorn, A; Hiley, J; and Smith, KS.

Overvoltages limitation in the 400kV north Transylvania network.” International Conference on Power System Transients, Budapest, 1999, pp 153-157. Cipcigan, L; Smith, KS; and Hiley, J.

“Earth leakage currents in an isolated power system with power electronic converters.” International Conference on Power System Transients, Budapest, 1999, pp 596-601. Smith, KS; and Ran, L.

“Analysis of AVR transients induced by transformer inrush currents.” International Conference on Power System Transients, Budapest, 1999, pp 445-450. Smith, KS; and Ran, L.

“The voltage distribution and interturn voltage in a synchronous generator due to rectifier loads.” International Conference on Power System Transients, Budapest, 1999, pp 125-130. Kunakorn, A; Hiley, J; and Smith, KS.

“Design considerations for filters on interconnected offshore power systems.” 2nd Brazilian Conference on Power Quality, Federal School of Engineering, Itajuba, Brazil, November 1997. Brogan, P; Yacamini, R; Smith, KS; and Paschoarelli, D.

“Measurements and simulation of dc drive harmonics in an interconnected offshore system with long sub-sea cables.” European Power Electronics Conference, Trondheim, Norway, September 1997, Conference Proceedings, Vol 4, pp 946-951. Smith, KS; Brogan, P; and Wilson, I.

“Synchronous machine parameters, their influence on the ac voltage distortion of isolated systems.” IEE Conference, “Opportunities and advances in International Power Generation,” IEE Conference Publication No 419, pp 154-157. Salman, S; Penman, J; Smith, KS; and Stewart, ID.

“Analysis and control of ASVC for interphase loadflow compensation.” Sixth International IEE AC-DC Conference, April 1996, IEE Conference Publication No 423, pp 285-290. Smith, KS; Ran, L; and Penman, J.

“Braking operation of marine electrical propulsion systems.” Trans. Institute of Marine Engineers Conference, “Electric Propulsion, the Effective Solution?” London, October 1995. Smith, KS; Ran, L; Mowatt, LG; and Penman, J.

“Measurement of synchronous machine parameters; a practical experience.” Trans. 30th UPEC, University of Greenwich, September 1995, pp 785-788. Salman, S; Smith, KS; and Stewart, ID.

“Investigation of the starting dynamics of electrical submersible pumps with soft starting.” IEE Conference, Power Electronics and Variable Speed Drives, London, October 1994, pp 586-590. Smith, KS; and Ran, L.

“Harmonics generated by cycloconverter drives.” IEEE, 6th International Conference on Harmonics in Power Systems, ICHIPS, September 21-23 1994, Bologna, Italy, pp 46-49. Yacamini, R; and Smith, KS.

“Time domain simulation of cycloconverter fed variable speed ac drives with closed loop control.” Proceedings IEE Conference, Control '94, University of Warwick, March 1994, pp 1406-1410. Smith, KS; and Ran, L.

“Time domain modelling of electrical machines and drives using modern CAE software.” Proceedings IEE International Conference on Electrical Machines, Oxford, September 1993, pp 323-327. Smith, KS; and Yacamini, R.

Saber simulation of vector control in cycloconverter driven variable speed drives.” Proceedings 28th Universities Power Engineering Conference, Stafford, September 1993. Smith, KS; and Ran, L.

“CAD simulation of power electronic circuits.” Proceedings 25th Universities Power Engineering Conference, RGIT, Aberdeen, September 1990, pp 61-64. Smith, KS; and Yacamini, R.

“Commutation spikes on isolated offshore power systems.” Proceedings 24th Universities Power Engineering Conference, Belfast, September 1989, pp 421-425. Smith, KS; and Yacamini, R.

 

 

 

Contact me

 

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