1 / 18

EWEC’09 Dr. Sunny Zhang 18.03.09

Gearbox – A Well-known Trouble Maker for Wind!. Courtesy of Johan Ribrant et al IEEE Transactions on Energy Conversion, March 2007. Courtesy of Richard Dupuis, GasTops Ltd WWEC 2008. EWEC’09 Dr. Sunny Zhang 18.03.09. Collapsed due to Gearbox failure?. EWEC’09 Dr. Sunny Zhang 18.03.09.

dora-sellers
Download Presentation

EWEC’09 Dr. Sunny Zhang 18.03.09

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Gearbox – A Well-known Trouble Maker for Wind! Courtesy of Johan Ribrant et al IEEE Transactions on Energy Conversion, March 2007 Courtesy of Richard Dupuis, GasTops Ltd WWEC 2008 EWEC’09 Dr. Sunny Zhang 18.03.09

  2. Collapsed due to Gearbox failure? EWEC’09 Dr. Sunny Zhang 18.03.09

  3. No Gear No Fear The switch Finland Direct Drive for Wind! EWEC’09 Dr. Sunny Zhang 18.03.09

  4. EWEC’09 Dr. Sunny Zhang 18.03.09 NdFeB Magnet Technology for Low Speed Direct Drive Getting More Out of Wind

  5. Warmup of high performance NdFeB magnet Production Availability of NdFeB magnets Reliability & Integrity/Durability Flexibility & Innovatability Conclusion EWEC’09 Dr. Sunny Zhang 18.03.09 Outline

  6. Mr. Geert-Jan BAKKER EWEC’09 Dr. Sunny Zhang 18.03.09 Bakker Magnetics in Facts & Figures - Group Headquarter: Eindhoven/NL. - Founded by Mr. Gerard Bakker in 1971. - Total employees: 750 (EU 100 + CN 650). - Family owned company. - Joint venture in Ningbo, China - Design, development & prototype in NL & CN. - Quality assurances in NL & CN. - Warehouse & logistics in NL. - Long term experiences & expertises - Turnover of 2008 in NL: 20 KK EURO More Than 35 Years of Know-hows in Permanent Magnets More Than 10 Years of Expertises for Wind/Wave Power Applications

  7. EWEC’09 Dr. Sunny Zhang 18.03.09 Warmup of Sintered NdFeB Magnet Production Smelting&Casting Powder production Pressing&Aligning Moulding Sintering Heat treatment Post-processing Coating&QC

  8. EWEC’09 Dr. Sunny Zhang 18.03.09 Conventional & Advanced Alloy Productions for Making NdFeB Permanent Magnets NdFeB Mother alloy Conventional casting Strip-casting

  9. EWEC’09 Dr. Sunny Zhang 18.03.09 DD PMSG Trend & NdFeB/Raw Materials Required Newly-installed GW: based on BTM, DK Machine units: based on 2 MW averaged

  10. EWEC’09 Dr. Sunny Zhang 18.03.09 Current Status of Global NdFeB Production 2008 in Brief Worldwide Rare Earth (RE) Landscape • Global Output NdFeB in 2008: • Total: ~ 65K Ton • CN: ~ 52K • JP: ~ 11K • EU (VAC/Neorem /Schramberg): ~2K(?) Nd required: ~ 20 K Ton Nd2O3 required: ~ 23-24 K Ton World Reserve: RE oxides: >100,000 K Ton Chinese share: ~ 43% Other main countries: US, RU, India, AU. Beijing-Tianjing Yantai region ~ 7K T ~ 15% of CN output Taiyuan region ~ 10K T 20% of CN output Ningbo region 20K – 30K T 50-60% of CN output

  11. NdFeB NdFeB NdFeB EWEC’09 Dr. Sunny Zhang 18.03.09 Advanced Epoxy Spray Technology for High Performance NdFeB Magnet Assemblies Dolly tests show our coating has 25 MPa adhesion strength

  12. EWEC’09 Dr. Sunny Zhang 18.03.09 Advanced Epoxy Encapsulating/Moulding Technology for NdFeB Magnet Assemblies Epoxy Epoxy encapsulation before SST Backing steel Salt Spray Test (SST) For 20 Days NdFeB magnet Cut-off Cross-section Epoxy encapsulation after SST Cross-section Cut-off

  13. EWEC’09 Dr. Sunny Zhang 18.03.09 Durable Stainless Steel Encapsulating Technology for Advanced NdFeB Magnet Assemblies NdFeB Smart tool NdFeB Magnets glued With smart tooling Magnets assembled in place Magnet Encapsulated With stainless steel

  14. EWEC’09 Dr. Sunny Zhang 18.03.09 Maximum Corrosion Protection & Durability (Hybrid) Coating+Epoxy Encapsulation+Stainless steel shell Epoxy to be injected Stainless steel shell fitted to the NdFeB rotor NdFeB magnets glued on the rotor Epoxy injection Stainless steel shell The NdFeB rotor of D400x1000(+) rotates @ 3000 rpm In addition to stainless steel reinforcement, we can offer ► Glass fiber reinforcement ► Carbon fiber reinforcement

  15. Distributed Winding Concentrated Winding EWEC’09 Dr. Sunny Zhang 18.03.09 Summary of Permanent Magnet Generator Topologies Slotted Slotless Rotating Linear

  16. EWEC’09 Dr. Sunny Zhang 18.03.09 Fighting against Leakage!!! Innovative & Flexible NdFeB magnet design technology Can be further explored to enhance power density!!!

  17. Bakker Magnetics PM Assemblies, Magnet Modules, in Reallife Wind turbines !!! Scanwind SW-90-3500 DL Turbines (3,5 MW), Installed in Hundhammerfjellet, Norway. EWEC’09 Dr. Sunny Zhang 18.03.09

  18. Conclusion: Solution Is Always Simple

More Related