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Management Board Meeting, Progress Report

WP1. Development of Novel Modular Generators and Converters. Management Board Meeting, Progress Report. 24 th January 2019. Recruitment. Project Manager Keith DEAN (10/2017-) 3 RAs recruited (3 in proposal) Shaoshen XUE ( 11/2017-) Liren HUANG ( 5/2018-) Tao WANG ( 7/2018-)

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Management Board Meeting, Progress Report

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  1. WP1. Development of Novel Modular Generators and Converters Management Board Meeting, Progress Report 24th January 2019

  2. Recruitment Project Manager Keith DEAN (10/2017-) 3 RAs recruited (3 in proposal) ShaoshenXUE (11/2017-) Liren HUANG (5/2018-) Tao WANG (7/2018-) 9+3 PhDs recruited (10 in proposal) Yanxin LI (1/10/2014-30/12/2017) Jaime Maravi NIETO (9/2017- ) Ximeng WU (9/2017 - ) Luke COWLING (9/2017-12/2018) – terminated due to personal reason Jin XU (9/2017-) Dileepkumar KP (9/2017-) Yi WEI (10/2017-) TianyiLIU (12/2017-) SumeetSingh THAKUR (2/2018-) Rajesh KUMAR (3/2018-) Matthew AJ FENTON-JONES (9/2018-) Zeting MEI (10/2018-) All in positions

  3. WP1. Development of Novel Modular Generators and Converters Progress against tasks for each Work Package and plan for next 3 months All in good progress

  4. Meetings over last 3 months Project management meetings Weekly – Monday every week WP1 - Technical meetings Weekly (individual) – Every week Monthly (EMD team) – Last Monday of each month SGRE engineers at S2GRE attend the monthly technical meetings 6 monthly technical meetings with SGRE engineers 2019-01-16/17, also attended by 18 SGREs from Brande/Keele/Glasgow/Sheffield, including 3 Principal Engineers, with presentations & feedback sessions

  5. WP1.1. Development and design optimisation of novel modular balanced multi-3-phase direct-drive PM generators • 1PDRA & 2PhDs ->2PDRA & 3PhDs. (2PDRA on new machine topologies, full-size generators, scalability study, 1PhD on modular multi-3-phase generators, 1PhD on Transverse flux machine, 1PhD on Vernier machine) • Personnel: 2PDRAs +2PhDs • RA1: Dr ShaoshenXue (1/12/2017-) – Loss in PM generator & Superconducting machines • RA2: Dr Liren Huang (5/2018-) – Modular fractional slot PM generators • PhD1: Dileep Kumar (1/10/2017-) – Novel Vernier PM generator • PhD2: Rajesh Kumar (1/3/2018) – Novel transverse flux PM generator • PhD3: Yanxin Li (1/10/2014-30/12/2017) – Modular PM generators • Key issues: None

  6. WP1.1. Development and design optimisation of novel modular balanced multi-3-phase direct-drive PM generators • 1PDRA & 2PhDs ->2PDRA & 3PhDs. (2PDRA on new machine topologies, full-size generators, scalability study, 1PhD on modular multi-3-phase generators, 1PhD on Transverse flux machine, 1PhD on Vernier machine) • Highlights of Achievements: • Novel modular PM machines: • A paper drafted/presented at Intermag19 on developed a 2.5D eddy current loss model. • Modular PM generator with 2-coil-pitches: a new machine topology developed and a patent being drafted. • Vernier generator: Feasibility of Vernier generator completed based on comparative study and the identified best existing topology; a new machine topology is proposed. • Transverse flux generators: FE model developed and being optimised. • SC generator: • AC loss modelling and influence of SC conductor location and orientation • Prototyping and Tests: • Prototyped 3kW modular PM machines are tested by various PhDs/RAs • Future work over next 3 months: • Novel modular PM machines: • Modular PM generator with 2-coil-pitches: Detailed design and analysis of the proposed machine topology • Vernier generator: Detailed analysis of the proposed new machine topology. • Transverse flux generators: Optimisation. • SC generator: • Design optimisation

  7. 1PDRA & 1PhD ->1PDRA & 3PhDs. (1PDRA on model predictive control, 1PhD on SiC converters, 1PhD on multi-3 phase modular converters and PWMs, 1PhD on multi-level AC-AC converter) • Personnel: 1PDRA +3PhDs • RA1: Tao Wang (1/7/2018-) – Model predictive control of wind power generation system • PhD1: Jin Xu (1/10/2017-) – Control of Multi-Three-Phase Permanent Magnet Wind Power Generators • PhD2: Sumeet Singh Thakur (1/2/2018-) – Mega-Watt AC-AC Multilevel Wind Power Converters • PhD3: Luke Cowling (1/10/2017-30/12/2018) – SiCconverter Key issues: Due to personal reason, Muke Cowling decided NOT to continue PhD study. WP1.2. Development of novel modular multi-3-phase converters and control strategies

  8. 1PDRA & 1PhD ->1PDRA & 3PhDs. (1PDRA on model predictive control, 1PhD on SiC converters, 1PhD on multi-3 phase modular converters and PWMs, 1PhD on multi-level AC-AC converter) • Highlights of Achievements: • Model predictive control: Basic implementation on finite-control-set & continuous-control-set MPCs, performance improvement on power quality & torque ripple • Control of multi-three-phase PMSG: FOC & DTC based harmonic compensation and peak common mode voltage reduction by model predictive control of synthetic vectors • Modular high voltage AC-AC converters:Analysis of MMC with increased capacitor ripple & reduction. • Future work over next 3 months: • Model predictive control: Experimental validation & general predictive control; computation burden reduction including optimization theory & complexity analysis. • Control of multi-three-phase PMSG: Reduction of voltage peaks & switching frequency. • Modular high voltage AC-AC converters : Investigation of effect of capacitor ripple on high frequency spectrum & capacitor ripple current, and extend analysis to Modular Multilevel Matrix Converter (M3C) with increased capacitor ripple. WP1.2. Development of novel modular multi-3-phase converters and control strategies

  9. Lead Partner: DU/Dong, Co-Partner: UoS(EMD); Resource: 1 PhD • Contact: Dr Christopher Crabtree, "CRABTREE C.J." c.j.crabtree@durham.ac.uk • Current state: • Re-advertising for this PhD studentship • The Durham, Ørsted and Siemens-Gamesa staff are meeting on Friday tomorrow to make progress with the detailed scope. WP1.3. Robust power converter design for large scale wind turbine application

  10. WP1.4. Parasitic effect and sensitivity studies, including noise and vibration, bearing current and manufacturing tolerances, rotor eccentricities etc. 1PDRA & 2PhDs-> 0PDRA & 2PhDs. (PDRA will be allocated later, 1PhD on bearing current & CMV, 1PhD on generator vibration) Personnel: 2PhDs PhD1: Yi Wei (1/10/2017-) – High-frequency effects in inverter-fed electrical machines PhD2: Jaime Maravi (1/10/2015-) – Multi-physics investigation of DD PM Wind Power Generators Key issues: None

  11. WP1.4. Parasitic effect and sensitivity studies, including noise and vibration, bearing current and manufacturing tolerances, rotor eccentricities etc. 1PDRA & 2PhDs-> 0PDRA & 2PhDs. (PDRA will be allocated later, 1PhD on bearing current & CMV, 1PhD on generator vibration) Highlights of Achievements: High-frequency effect: Comparison of 2 differential-mode impedance measurement techniques; Improved vector-fitting based impedance modelling method with good results. Multi-physics investigation of DD PM Wind Power Generators: Experimental validation of generator assembly modal analysis & experimental validation of vibration calculation method. Future work over next 3 months: High-frequency effect: Improved frequency & time domain modelling by considering HF skin and proximity effects,slot insulation parameters, for different winding topologies, end overhang & cable. Multi-physics investigation of DD PM Wind Power Generators: Complete the validation of the 84s28p mechanical model by analysing the stator assembly, Vibration measurement validation on the fractional-slot modular 42s32p.

  12. 2PhDs. (1PhD on self-sensing at zero/low speed for SPM generator, 1PhD on self-sensing under unbalanced or fault condition) • Personnel: 2PhDs • PhD1: Ximeng Wu (1/10/2016-) - Self-sensing at zero/low speed for SPM generator • PhD2: Tianyi Liu (1/12/2017-) - Self-sensing under unbalanced or fault condition Key issues: None WP1.5. Novel self-sensing control techniques for new modular generators

  13. 2PhDs. (1PhD on self-sensing at zero/low speed for SPM generator, 1PhD on self-sensing under unbalanced or fault condition) • Highlights of Achievements: • Self-sensing at zero/low speed for SPM generator: Internship at Keele implementing and simulating rotor initial position estimation method using voltage pulse injection; 2 patents submitted to SGRE; 2 digests submitted to IEMDC19; Mechanical rotor position estimation method based on rotor eccentricity • Self-sensing under unbalanced or fault condition: development of general model considering the resistance, inductances, emf asymmetries; theoretical and experimental investigation of high frequency injection methods for PMGs with resistance asymmetry • Future work over next 3 months: Self-sensing at zero/low speed for SPM generator: Investigation of the proposed rotor initial position estimation method investigation, including voltage vector selection & influence of rotor eccentricity, continue implementing at Keele on the real system. Self-sensing under unbalanced or fault condition: Theoretical and experimental investigation of high frequency injection methods for PMGs with other asymmetries. WP1.5. Novel self-sensing control techniques for new modular generators

  14. Identify any risks at Work Package level that should be brought to the attention of the Management Board. None Risks and Opportunities

  15. Publications: 4 digests submitted to IEMDC19/ECCE19 Collaborations & Partnerships: ORE Catapult – Powertrain Research Hub (embargoed) Further Funding: £700k over 5 years, directed Prof. Dave Stone, see above. £385k, Prof. ZQZhu RAE/Siemens Research Chair extension for further 5 years. Engagement Activities: Supergen ORE Hub research assembly group meeting Research Tools & Methods: none IP & Licensing: 3 patents drafted/filed Software & Technical Products: none Spin Outs: none Awards & Recognition: none Other Outputs and Knowledge: none Use of Facilities and Resources: Internship at Keele Outcomes and Outputs (ResearchFish)

  16. Lead Partner: UoS(EMD)/SWP, Co-Partner: DU; Resource: 2PhDs. • Overall: • 2 PhD students in position • Literature review reports completed • PhD: Zeting Mei (10/2018-) • Topic: Fault Modelling and Diagnostics of Permanent Magnet Machines for Wind Power Application • Current State: Literature review and report completed, ppt presented to Siemens Gamesa • Next 3 months: Simulation of faulty permanent magnet generator • PhD: Matthew Fenton-Jones (9/2018-) • Topic: Condition Monitoring and Prognostics of Wind Turbine Power Electronics • Current State: Literature review and report completed, ppt presented to Siemens Gamesa • Next 3 months: Simulation of thermal modelling and loss, hardware WP3.5. Generator and converter fault analyses, including open- and short-circuits, and health and condition monitoring

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