1 / 12

DUSC

The Design of the Durham University Solar-Powered Car. DUSC. Development of high-performance solar car Good match for Durham School of Engineering Vehicle Design and Development. Introduction. Vehicle Design. SUN. Solar Cells. MPPT. 3–200V DC. 3–200V AC var freq. 42 – 59 VDC.

long
Télécharger la présentation

DUSC

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. The Design of the Durham University Solar-Powered Car DUSC

  2. Development of high-performance solar car Good match for Durham School of Engineering Vehicle Design and Development Introduction

  3. Vehicle Design

  4. SUN Solar Cells MPPT 3–200V DC 3–200V AC var freq 42 – 59 VDC DC-DC Converter Inverter Drive Wheel Motor Solar Cells MPPT Battery Module multiple units multiple units in parallel Vehicle Design - Electrical

  5. Vehicle Design - Electrical • Solar Cells • Use energy from the sun to generate electricity • Maximum power from the sun ~1000 W/m2 • Solar cell efficiency ~16% • Area of solar panels • = 1.8 m x 5 m • = 9 m2 • Power • = 1000 W/m2 x 0.16 x 9m2 • = 1440 Watts

  6. Vehicle Design - Electrical • Maximum Power Point Trackers (MPPTs) • Power = Voltage x Current • Voltage and Current from cell both depend on sun! • Sometimes voltage from cell < battery voltage • MPPTs provide the optimum resistance to the solar cells for maximum power

  7. Vehicle Design - Electrical • Motor • Direct-drive: no gearbox loss • High-torque / low-speed • Axial flux “pancake” • Integrated into rear wheel • 1.8kW, effy ~ 95% • Can also act as brake • Has potential to be used for real vehicles

  8. Vehicle Design - Electrical • Batteries • 4 sealed gel lead acid batteries (125 kg total) • 48V - 5kWh capacity •  energy collected during typical day in UK summer • Charge all day, drive for 2 hours at high speed • Technical Partner • C&D Technologies

  9. Vehicle Design - Mechanical • Aerodynamic Design • Aerodynamic drag increases with velocity squared • Rolling resistance does not change with speed • Aero drag dominates power consumption at high speed • Computer simulations (CFD) • 10% scale parametric models • Target CDA ~0.1m2

  10. Vehicle Design - Mechanical • Chassis Design • Low mass (30kg) • low Factor of Safety • detailed analysis • Computer simulations (FEA) • Steel space frame • Composite body shell • On-road testing • verify design loads • validate simulation

  11. The Way Forward • (N)ASC July 2005, July 2007? • WSC Sept 2005, Sept 2007 • Jobs to do: • Recruit sponsors • Spent £45,000 to date • Need £17,000+ for spares etc, £20,000 for WSC • Website • Tune chassis / improve bodyshell • Power electronics for drive motor • Solar cell encapsulation etc • Telemetry?

  12. The Design of the Durham University Solar-Powered Car DUSC

More Related