Research/Scholarly/Creative Works

• Asef P., Denai M., Paulides JJH., Marques BR. and Lapthorn A. (2022) A Novel Multi-Criteria Local Latin Hypercube Refinement System for Commutation Angle Improvement in IPMSMs. IEEE Transactions on Industry Applications http://dx.doi.org/10.1109/TIA.2022.3225786. (Journal Articles)

• Collett G., Nicholson C., Smith L., Stevens C., Thomas W. and Lapthorn A. (2022) Nepalese Pico Hydropower Generation. In 2022 7th IEEE Workshop on the Electronic Grid, eGRID 2022 http://dx.doi.org/10.1109/eGRID57376.2022.9990018. (Conference Contributions - Published)

• Subritzky S. and Lapthorn A. (2022) DC Suitability of AC Appliances. In 2022 7th IEEE Workshop on the Electronic Grid, eGRID 2022 http://dx.doi.org/10.1109/eGRID57376.2022.9990027. (Conference Contributions - Published)

• Teh XY., Xue Y., Liang Z., Ramirez J. and Lapthorn A. (2022) Investigation of Geomagnetically Induced Currents (GICs) Susceptibility of Different Three-Phase Power Transformer Cores. In 2022 7th IEEE Workshop on the Electronic Grid, eGRID 2022 http://dx.doi.org/10.1109/eGRID57376.2022.9990010. (Conference Contributions - Published)

• Asef P. and Lapthorn A. (2021) Overview of Sensitivity Analysis Methods Capabilities for Traction AC Machines in Electrified Vehicles. IEEE Access 9: 23454-23471. http://dx.doi.org/10.1109/ACCESS.2021.3056933. (Journal Articles)

• Asef P., Bargallo R., Lapthorn A., Tavernini D., Shao L. and Sorniotti A. (2021) Assessment of the energy consumption and drivability performance of an ipmsm-driven electric vehicle using different buried magnet arrangements. Energies 14(5) http://dx.doi.org/10.3390/en14051418. (Journal Articles)

• Asef P., Denai M., Marques BR., Paulides JJH. and Lapthorn A. (2021) Commutation angle maps evaluation for magnet arrangements of interior permanent magnet synchronous machines in electric vehicles. In SEST 2021 - 4th International Conference on Smart Energy Systems and Technologies http://dx.doi.org/10.1109/SEST50973.2021.9543397. (Conference Contributions - Published)

• Asef P., Milan M., Lapthorn A. and Padmanaban S. (2021) Future trends and aging analysis of battery energy storage systems for electric vehicles. Sustainability (Switzerland) 13(24) http://dx.doi.org/10.3390/su132413779. (Journal Articles)

• Lapthorn A., Hardie S., Watson N., Peterson T., Heise W., Welling D., Ingham M., Grant C., Dalzell M. and Wang T. (2021) Solar Tsunamis: Space Weather Prediction and Risk Mitigation for New Zealand's Energy Infrastructure. Wellington: EEA Conference & Exhibition 2021, 2-4 Aug 2021. (Conference Contributions - Other)

• Mora S., Seaton H., Subritzky S., Toms D., Lapthorn A. and Heffernan B. (2021) Static Characterisation of Gallium Nitride HEMTs at Cryogenic Temperatures. In IEEE Region 10 Annual International Conference, Proceedings/TENCON 2021-December: 953-957. http://dx.doi.org/10.1109/TENCON54134.2021.9707264. (Conference Contributions - Published)

• Shafiee M., Amirahmadi M., Farzinfar M. and Lapthorn A. (2021) Voltage stability improvement in optimal placement of voltage regulators and capacitor banks based on FSM and MMOPSO approach. International Journal of Engineering, Transactions A: Basics 34(4): 881-890. http://dx.doi.org/10.5829/ije.2021.34.04a.14. (Journal Articles)

• Van Der Byl DJ. and Lapthorn AC. (2021) A New Discrete Frequency Control Method for an Improved Soft-Start of Induction Motors Part 1: CLSSR-DFC Development. In IEEE Region 10 Annual International Conference, Proceedings/TENCON 2021-December: 986-991. http://dx.doi.org/10.1109/TENCON54134.2021.9707282. (Conference Contributions - Published)

• Van Der Byl DJ. and Lapthorn AC. (2021) A New Discrete Frequency Control Method for an Improved Soft-Start of Induction Motors Part 2: Simulation Studies. In IEEE Region 10 Annual International Conference, Proceedings/TENCON 2021-December: 992-997. http://dx.doi.org/10.1109/TENCON54134.2021.9707458. (Conference Contributions - Published)

• Wadsworth A., Pais B., Kyle S., Thrimawithana DJ., Badcock RA., Lapthorn A., Heffernan B., Oliver RA., Wallis DJ. and Neuberger M. (2021) Evaluating Common Electronic Components and GaN HEMTs under Cryogenic Conditions. In 2021 IEEE Southern Power Electronics Conference, SPEC 2021 http://dx.doi.org/10.1109/SPEC52827.2021.9709441. (Conference Contributions - Published)

• Watson N., Mukhedkar R., Nair N., Lie T., Lapthorn A., Rayudu R. and Le Quellec I. (2021) Architecture of the Future Low-Carbon, Resilient, Electrical Power System. Wellington, New Zealand: EEA Conference & Exhibition 2021, 2-4 Aug 2021. (Conference Contributions - Other)

• Asef P., Bargallo R. and Lapthorn A. (2020) Magnetic Noise Reduction of In-Wheel Permanent Magnet Synchronous Motors for Light-Duty Electric Vehicles. Vehicles 2(1): 156-172. http://dx.doi.org/10.3390/vehicles2010009. (Journal Articles)

• Ran H., Zhang J., Geng Z., Wang M., Wang J., Yan P., Lapthorn A. and Jin Z. (2020) Vacuum surface flashover characteristics of micro-stack insulators under nanosecond pulses. IEEE Transactions on Dielectrics and Electrical Insulation 27(4): 1265-1272. http://dx.doi.org/10.1109/TDEI.2020.008703. (Journal Articles)

• Asef P., Bargalló Perpiñà R., Moazami S. and Craig Lapthorn A. (2019) Rotor Shape Multi-Level Design Optimization for Double-Stator Permanent Magnet Synchronous Motors. IEEE Transactions on Energy Conversion 34(3): 1223-1231. http://dx.doi.org/10.1109/TEC.2018.2885977. (Journal Articles)

• Asef P., Bargallo R. and Lapthorn AC. (2019) Time-domain computation of rotational iron losses considering the bulk conductivity for PMSMs. IET Electric Power Applications 13(6): 712-719. http://dx.doi.org/10.1049/iet-epa.2018.5395. (Journal Articles)

• Asef P., Bargallo R., Hartavi Karci AE., Niknejad P., Barzegaran MR. and Lapthorn AC. (2019) Correlation of solar power prediction considering the nominal operating cell temperature under partial shading effect. Measurement: Journal of the International Measurement Confederation 147 http://dx.doi.org/10.1016/j.measurement.2019.106878. (Journal Articles)

• Asef P., Perpina RB. and Lapthorn AC. (2019) Optimal pole number for magnetic noise reduction in variable-speed permanent magnet synchronous machines with fractional-slot concentrated windings. IEEE Transactions on Transportation Electrification 5(1): 126-134. http://dx.doi.org/10.1109/TTE.2018.2886429. (Journal Articles)

• Asef P., Perpina RB., Barzegaran MR. and Lapthorn A. (2019) A 3-D pareto-based shading analysis on solar photovoltaic system design optimization. IEEE Transactions on Sustainable Energy 10(2): 843-852. http://dx.doi.org/10.1109/TSTE.2018.2849370. (Journal Articles)

• Berry A. and Lapthorn A. (2019) Big Things in Small Packages – High Voltage Stator Testing. Sky City, Auckland, New Zealand: EEA Conference and Exhibition, 25-27 Jun 2019. (Conference Contributions - Other)

• Berry A. and Lapthorn A. (2019) Crackle & Pop! Three Stages of High Voltage Testing. Sydney, NSW, Australia: Austorque Machines 2019, 29-31 Oct 2019. (Conference Contributions - Other)

• Hockey R. and Lapthorn A. (2019) Putting the High in High Voltage: UAVs for Live Line Inspection. Sky City, Auckland, New Zealand: EEA Conference and Exhibition, 25-27 Jun 2019. (Conference Contributions - Other)

• Jin Z., Lapthorn A. and Staines M. (2019) An investigation on the ac dielectric strength of paper sheet insulation in liquid nitrogen. IEEE Transactions on Applied Superconductivity 29(1) http://dx.doi.org/10.1109/TASC.2018.2854664. (Journal Articles)

• Jin Z., Lapthorn A. and Staines M. (2019) Corrections to: 'The Dielectric Strength of Nomex 410 Paper in Liquid Nitrogen under Boiling Situations'((2017) 27:7 (5500710) DOI: 10.1109/TASC.2017.2732282). IEEE Transactions on Applied Superconductivity 29(4) http://dx.doi.org/10.1109/TASC.2018.2880324. (Journal Articles)

• Asef P., Perpina RB., Barzegaran MR., Dong J., Lapthorn A. and Mohammed OA. (2018) A comparative study of Quasi-FEA technique on iron losses prediction for permanent magnet synchronous machines. Progress In Electromagnetics Research C 81: 101-113. http://dx.doi.org/10.2528/pierc17102702. (Journal Articles)

• Asef P., Perpina RB., Barzegaran MR., Lapthorn A. and Mewes D. (2018) Load identification of different Halbach-array topologies on permanent magnet synchronous generators using the coupled field-circuit FE methodology. Electric Power Systems Research 154: 484-492. http://dx.doi.org/10.1016/j.epsr.2017.08.041. (Journal Articles)

• Jin Z., Lapthorn A. and Staines M. (2018) Keeping Cool under Pressure: Dielectric Strength of Sheet Insulation in Boiling Liquid Nitrogen. IEEE Transactions on Applied Superconductivity 28(4) http://dx.doi.org/10.1109/TASC.2018.2813527. (Journal Articles)

• Lapthorn A. (2018) Experiences testing large machines with high-voltage partial-core transformers. Sydney, NSW, Australia: Austorque Machines 2018, 29-31 Oct 2018. (Conference Contributions - Other)

• Peimankar A., Weddell SJ., Jalal T. and Lapthorn A. (2018) Multi-objective ensemble forecasting with an application to power transformers. Applied Soft Computing 68: 233-248. http://dx.doi.org/10.1016/j.asoc.2018.03.042. (Journal Articles)

• Asef P., Bargallo R. and Lapthorn AC. (2017) Iron Loss Prediction Using Modified IEM-Formula during the Field Weakening for Permanent Magnet Synchronous Machines. Machines 5(4) 30: 15. http://dx.doi.org/10.3390/machines5040030. (Journal Articles)

• Asef P., Perpina RB., Barzegaran MR., Lapthorn AC. and Mewes D. (2017) Multi-objective Design Optimization Using Dual-Level Response Surface Methodology and Booth's Algorithm for Permanent Magnet Synchronous Generators. IEEE Transactions on Energy Conversion : 8. http://dx.doi.org/10.1109/TEC.2017.2777397. (Journal Articles)

• Jin Z., lapthorn A. and Staines M. (2017) The Dielectric Strength of Nomex 410 Paper in Liquid Nitrogen under Boiling Situations. IEEE Transactions on Applied Superconductivity 27(7) 5500710: 10. http://dx.doi.org/10.1109/TASC.2017.2732282. (Journal Articles)

• Lapthorn AC., Raniga J. and Urban R. (2017) Audible Noise Management of Newly Reconductored Transmission Lines. In http://papers.conference.eea.co.nz/. (Conference Contributions - Published)

• Lapthorn AC., Rashid N., Jalal TS. and van Vliet B. (2017) What's my Rating? Asset Capacity Utilisation with a Smart Grid. In http://papers.conference.eea.co.nz/. (Conference Contributions - Published)

• Peimankar A., Weddell S., Jalal T. and Lapthorn AC. (2017) Evolutionary Multi-Objective Fault Diagnosis of Power Transformers. Swarm and Evolutionary Computation 36: 62-75. http://dx.doi.org/10.1016/j.swevo.2017.03.005. (Journal Articles)

• Lapthorn AC., Irani Y., Enright W., Race P., Shicker K. and McDonald C. (2016) Three Phase Partial Discharge Investigation of a 108 MW Hydro Stator. Wellington, New Zealand: EEA Conference & Exhibition 2016, 22-24 Jun 2016. (Conference Contributions - Other)

• Lapthorn AC., Pandey S. and Sorez M. (2016) Mind the Gaps. Wellington, New Zealand: EEA Conference & Exhibition 2016, 22-24 Jun 2016. (Conference Contributions - Other)

• Peimankar A., Weddell SJ., Jalal T. and Lapthorn A. (2016) Ensemble Classifier Selection Using Multi-Objective PSO for Fault Diagnosis of Power Transformers. In. (Conference Contributions - Published)

• Peimankar A., Weddell SJ., Jalal T. and Lapthorn AC. (2016) Ensemble Classifier Selection Using Multi-Objective PSO for Fault Diagnosis of Power Transformers. In Lapthorn AC (Eds). 2016 IEEE Congress on Evolutionary Computation (CEC). (Conference Contributions - Published)

• Rashid N. and Lapthorn AC. (2016) Evaluation and Optimization of Network Capacity Utilization for Electric Distribution. In. (Conference Contributions - Published)

• Rashid N., Lapthorn AC., Jalal TS. and Van Vliet B. (2016) Global and Local Trends of Grid Intelligence Based on Dynamic Rating Application. Wellington, New Zealand: EEA Conference & Exhibition 2016, 22-24 Jun 2016. (Conference Contributions - Other)

• Lapthorn AC. and Keenan K. (2015) A Radially Laminated Core for Partial Core Transformers. Wellington, New Zealand: 2015 Electricity Engineers' Association Conference (EEA), 24-26 Jun 2015. (Conference Contributions - Other)

• Lapthorn AC., Pandey S. and Hioka Y. (2015) Is there a problem with NCEA Physics 3.6? An electrical engineering perspective. New Zealand Science Teacher 134: 34-38. (Journal Articles)

• Peimanker A. and Lapthorn A. (2015) Condition Assessment of Transformers Load Tap Changers Using Support Vector Machine. Pilsen, Czech Republic: 19th International Symposium on High Voltage Engineering, 23-28 Aug 2015. (Conference Contributions - Other)

• Cao X., Lapthorn A. and Peimankar A. (2014) An Isolated Hybrid Renewable Energy System: Ha'apai Island Group in the Kingdom of Tonga. In. (Conference Contributions - Published)

• Pandey S., Lapthorn A., Irani Y. and Miller A. (2014) Zen and the Art of Engineering Education. In. (Conference Contributions - Published)

• Irani Y., Bodger P. and Lapthorn A. (2013) A Comparison of VLF and 50 Hz Field Testing of Medium Voltage Cables. Auckland, New Zealand: Electrical Engineers' Association Conference and Exhibition 2013, 19-21 Jun 2013. (Conference Contributions - Other)

• Irani Y., Lapthorn A. and Bodger P. (2013) Equivalent Circuit Model of Cascade Connected Partial Core Resonant Transformers. In : 4pp. http://dx.doi.org/10.1109/AUPEC.2013.6725432. (Conference Contributions - Published)

• Lapthorn A. and Watson NR. (2013) Smart Grid in a New Zealand Context. In Proceedings of EEA Conference 2013. (Conference Contributions - Published)

• Lapthorn AC., Bodger PS. and Enright WG. (2013) A 15-kVA High-Temperature Superconducting Partial-Core Transformer - Part 1: Transformer Modeling. Power Delivery, IEEE Transactions on 28(1): 245-252. http://dx.doi.org/10.1109/TPWRD.2012.2226478. (Journal Articles)

• Lapthorn AC., Bodger PS. and Enright WG. (2013) A 15-kVA High-Temperature Superconducting Partial-Core Transformer - Part II: Construction Details and Experimental Testing. Power Delivery, IEEE Transactions on 28(1): 253-260. http://dx.doi.org/10.1109/TPWRD.2012.2226479. (Journal Articles)

• Pandey S., Abelentsev V., Bodger PS. and Lapthorn AC. (2013) Tongan Schools go Solar; 8kW Photovoltaic System Design & Installation by University of Canterbury Students in Five Tongan High Schools. Auckland, New Zealand: Electrical Engineers' Association Conference and Exhibition 2013 (EEA), 19-21 Jun 2013. (Conference Contributions - Other)

• Pandey S., Bodger PS. and Lapthorn AC. (2013) Renewable Energy in the Kingdom of Tonga; National Plan and PV Generation Systems. In. (Conference Contributions - Published)

• Pandey S., Mang K., Bodger PS. and Lapthorn AC. (2013) Tongan Schools go Solar; Is it possible to deliver development projects with cost-effective partnerships? In http://dx.doi.org/10.3390/wsf3-g002. (Conference Contributions - Published)

• Lapthorn AC. (2012) High temperature superconducting partial core transformers. Christchurch, New Zealand. University of Canterbury. (Theses / Dissertations)

• Lapthorn AC. (2012) Smart Grid in a New Zealand Context. 183pp. (Discussion/Working Papers)

• Lapthorn AC. and Bodger PS. (2012) Construction and testing of a next generation HTS partial-core transformer. In. (Conference Contributions - Published)

• Lapthorn AC., Chew I., Enright WG. and Bodger PS. (2011) Experiences Determining the AC Current Rating of HTS Tapes in Power Transformers. In http://dx.doi.org/10.1109/APPEEC.2011.5748478. (Conference Contributions - Published)

• Lapthorn A. and Bodger P. (2010) An AC Loss Model for Bi2223 Superconductors in Partial Core Transformers. Christchurch, New Zealand: 20th Australasian Universities Power Engineering Conference (AUPEC 2010), 5-8 Dec 2010. (Conference Contributions - Other)

• Lapthorn A., Chew I., Bodger P. and Enright W. (2010) An Experimental High Temperature Superconducting Transformer: Design, Construction and Testing. Christchurch, New Zealand: 2010 Electricity Engineers' Association Conference, 17-18 Jun 2010. (Conference Contributions - Other)

• Lapthorn A., Chew I., Enright W. and Bodger P. (2010) HTS Transformer: Construction Details, Test Results, and Noted Failure Mechanisms. IEEE Transactions on Power Delivery 26(1): 394-399. http://dx.doi.org/10.1109/TPWRD.2010.2061874. (Journal Articles)

• Chew I., Lapthorn A., Bodger P. and Enright W. (2009) Superconductor Transformer Failure: Testing and Investigation. Adelaide, Australia: 19th Australasian Universities Power Engineering Conference (AUPEC), 27-30 Sep 2009. (Conference Contributions - Other)

• Lapthorn A. and Bodger P. (2009) A Comparison Between the Circuit Theory Model and Finite Element Model Reactive Components. Adelaide, Australia: 19th Australasian Universities Power Engineering Conference (AUPEC), 27-30 Sep 2009. (Conference Contributions - Other)

Student Supervision

Displaying all items.

Completed
• PhD - Berry A: Loss Modelling of Partial Core Transformers (2022)
• PhD - Irani Y: Cascaded partial core resonant transformers (2017)
• PhD - Jin Z: Dielectric Breakdown in Liquid Nitrogen with the Presence of Thermal Nitrogen Bubbles (2018)
• PhD - Peimankar A: Intelligent Condition Assessment of Power Transformers (2017)
• PhD - Ramzan M: Modelling Distribution Network Through Tensor Representation In the Presence of Power Electronics Devices (2021)
• PhD - Rashid N: Development of a predictive asset rating tool for decision support in an electrical distribution network (2019)
• Masters - Cao X: The design of a highly penetrated hybrid renewable energy system for the Ha'apai Island Group (2016)
• Masters - Morris J: Optimisation of a three-phase partial core inductor (2018)
• Masters - Pandey S: Renewable Energy in the Kingdom of Tonga and the Implementation of 8kWp Photovoltaic Solar Energy Systems in Five Tongan High Schools (2014)
• Masters - Sun L: Power Conversion system design for a low cost domestic PV system (2016)
• Honours - Bateup L: Giant Jacob’s Ladder (2016)
• Honours - Berry A: UC Rocketry Development of a Coil Gun for Solid Propellant Rockets (2015)
• Honours - Brash R: UC Rocketry Development of a Coil Gun for Solid Propellant Rockets (2015)
• Honours - Bulimaiwai A: Investigating Three Phase Partial Core Transformer Losses & Performance (2013)
• Honours - Chang C-K: Online Measurement of Generator Synchronous Reactances & Transient Overvoltages on Unearthed High Voltage Networks (2017)
• Honours - Dobson B: High Speed H-Bridge for Musical Tesla Coil (2013)
• Honours - Doesburg M: Current Sharing in Transposed/Non-transposed Cables (2013)
• Honours - Ellena R: Two-Seater Hovercraft Waypoint Navigation and Systems Automation (2015)
• Honours - Engler B: Shell Eco Marathon (2016)
• Honours - Fursdon M: UC Rocketry Development of a Coil Gun for Solid Propellant Rockets (2015)
• Honours - Galbraith T: FSAE Electric Race Car Electrical and Electronic Systems Optimization (2017)
• Honours - Hammerich M: Aurora 6.6kV to 11kV Voltage Conversion (2014)
• Honours - Hassan M: Effects of lightning on Marine Vessel Control System (2013)
• Honours - Hendrikz J: Shell Eco Marathon (2016)
• Honours - Hillas D: Online measurement of generator Synchronous Reactances & Transient Overvoltages on unearthed high voltage networks (2017)
• Honours - Hou Y: Investigation of Flux Diverter of HTS AC Loss Reduction in Partial Core Transformers (2013)
• Honours - Huang R: Validation and Software Development for UAV Brushless Motor Controllers (2015)
• Honours - Hudson S: Validation and Software Development for UAV Brushless Motor Controllers (2015)
• Honours - Jaine C: FSAE Electric Race Car Electrical and Electronic Systems Optimization (2017)
• Honours - Jar B: Two-Seater Hovercraft Waypoint Navigation and Systems Automation (2015)
• Honours - Kan N: Online Measurement of Generator Synchronous Reactances & Transient Overvoltages on Unearthed High Voltage Networks (2017)
• Honours - Keenan K: Design, Model and Build of Radial Core for Partial Core Transformer (2013)
• Honours - Lane C: FSAE Electric Race Car Electrical and Electronic Systems Optimization (2017)
• Honours - Leonard S: Aurora 6.6kV to 11kV Conversion Project (2014)
• Honours - Li A: Validation and Software Development for UAV Brushless Motor Controllers (2015)
• Honours - Linton J: Two-Seater Hovercraft Waypoint Navigation and Systems Automation (2015)
• Honours - Liu J: Online Measurement of Generator Synchronous Reactances & Transient Overvoltages on Unearthed High Voltage Networks (2017)
• Honours - MacEwan C: UC Rocketry Development of a Coil Gun for Solid Propellant Rockets (2015)
• Honours - Mulholland B: Aurora 6.6 kV to 11 kV Feeder Network Conversion (2014)
• Honours - Sadik A: Reactive Compensation for Partial Core Transformer (2013)
• Honours - Smart T: Aurora 6.6kV to 11kV Feeder Conversion (2014)
• Honours - Smith J: FSAE Electric Race Car Electrical and Electronic Systems Optimization (2017)
• Honours - Stewart-Ward C: Giant Jacob’s Ladder (2016)
• Honours - Stuart J: Giant Jacob’s Ladder (2016)
• Honours - Sullivan F: Shell Eco Marathon (2016)
• Honours - Thompson C: Shell Eco Marathon (2016)
• Honours - Williams B: Giant Jacob’s Ladder (2016)
• Honours - Ziwei M: Two-Seater Hovercraft Waypoint Navigation and Systems Automation (2015)

Review and Refereeing

Displaying all items.

• Energies ( 2014 - 2023)
• IEEE Transactions on Applied Superconductivity ( 2016 - 2023)
• IEEE Transactions on Power Delivery ( 2010 - 2023)
• IEEE Transactions on Sustainable Energy ( 2014 - 2023)