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1 White-paper review Axial Flux Technology for Motors & Generators.

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Presentation on theme: "1 White-paper review Axial Flux Technology for Motors & Generators."— Presentation transcript:

1 1 White-paper review Axial Flux Technology for Motors & Generators

2 2 White-paper review Axial Flux Technology for Motors & Generators Background: Motors & Generators Classification

3 3 White-paper review Axial Flux Technology for Motors & Generators Vs. brush using brush brushless Stator windings Rotor magnets driver

4 4 White-paper review Axial Flux Technology for Motors & Generators Vs. shape Cylindrical Disk-shaped

5 5 White-paper review Axial Flux Technology for Motors & Generators Rotation axles Vs. current-field directions Currents Magnetic field Torque Radial-Field Axial-Field

6 6 White-paper review Axial Flux Technology for Motors & Generators WE DEAL WITH AND OFFER: n Brushless n Disk-shaped n Axial field

7 7 White-paper review Axial Flux Technology for Motors & Generators Why do we offer …

8 8 White-paper review Axial Flux Technology for Motors & Generators … Brushless ? n No brushes – no maintenance n No brushes – long working life n No brushes – no sparking n No brushes – reduced EMI / RFI n No brushes – no maintenance n No brushes – long working life n No brushes – no sparking n No brushes – reduced EMI / RFI

9 9 White-paper review Axial Flux Technology for Motors & Generators … Disk-shaped ? system with CYLINDRICAL System with DISK-SHAPED

10 10 White-paper review Axial Flux Technology for Motors & Generators AXIAL FLUX RADIAL FLUX … Axial Flux ?

11 11 White-paper review Axial Flux Technology for Motors & Generators Detailing The Axial Flux Technology

12 12 White-paper review Axial Flux Technology for Motors & Generators Version I With Steel Core

13 13 White-paper review Axial Flux Technology for Motors & Generators Electromagnetic Structure

14 14 White-paper review Axial Flux Technology for Motors & Generators General Design rotor Right stator Left housing Right housing Left housing

15 15 White-paper review Axial Flux Technology for Motors & Generators Stator Core Active coil part Internal overhang External overhang

16 16 White-paper review Axial Flux Technology for Motors & Generators Permanent magnets Shaft Carrying structureRotor

17 17 White-paper review Axial Flux Technology for Motors & Generators Version II Coreless

18 18 White-paper review Axial Flux Technology for Motors & Generators Electromagnetic Structure

19 19 White-paper review Axial Flux Technology for Motors & Generators General Design

20 20 White-paper review Axial Flux Technology for Motors & Generators Coils Carrying structure Stator

21 21 White-paper review Axial Flux Technology for Motors & Generators Yoke Permanent magnets Carrying structure Rotor

22 22 White-paper review Axial Flux Technology for Motors & Generators Additional Features of Axial-Flux Machines

23 23 White-paper review Axial Flux Technology for Motors & Generators Various Stators-Rotors Combinations

24 24 White-paper review Axial Flux Technology for Motors & Generators End Rotors Interposed Rotors Modularity

25 25 White-paper review Axial Flux Technology for Motors & Generators Principle Features and Advantages

26 26 White-paper review Axial Flux Technology for Motors & Generators Version I With Steel Core

27 27 White-paper review Axial Flux Technology for Motors & Generators Features n Axial direction of magnetic flux and radial direction of electric currents n Thin disk-shaped rotor n Flat Nd-Fe-B magnets n Reeled electric steel core n Thermo conducting cooling mechanism n Reduced cogging n Axial direction of magnetic flux and radial direction of electric currents n Thin disk-shaped rotor n Flat Nd-Fe-B magnets n Reeled electric steel core n Thermo conducting cooling mechanism n Reduced cogging

28 28 White-paper review Axial Flux Technology for Motors & Generators n Excellent torque-to-volume, torque/weight ratios (up to 2÷3 Nm/kg) n High stall torque n Highest acceleration n Low mechanical time constant n Wide operating speed range n Allowance for peak torques without forced cooling n Excellent torque-to-volume, torque/weight ratios (up to 2÷3 Nm/kg) n High stall torque n Highest acceleration n Low mechanical time constant n Wide operating speed range n Allowance for peak torques without forced cooling Advantages

29 29 White-paper review Axial Flux Technology for Motors & Generators Applications n Drives for robotic (with and without transmission) n Drives for high inertia loads n Direct drive rotation tables n Torquers n Drives for robotic (with and without transmission) n Drives for high inertia loads n Direct drive rotation tables n Torquers

30 30 White-paper review Axial Flux Technology for Motors & Generators Implementations BDM 002 (4.4 Nm stall 4.4 kg) BDM 006 (14.4 Nm stall 10.0 kg) n Servo-motors for robotics

31 31 White-paper review Axial Flux Technology for Motors & Generators Version II Coreless

32 32 White-paper review Axial Flux Technology for Motors & Generators Features n Axial direction of magnetic flux and radial direction of electric currents n Light-weight disk-shaped stator n Absolutely no cogging n No parasitic forces between rotor and stators n Self-ventilation or forced cooling n Very low inductance n Axial direction of magnetic flux and radial direction of electric currents n Light-weight disk-shaped stator n Absolutely no cogging n No parasitic forces between rotor and stators n Self-ventilation or forced cooling n Very low inductance

33 33 White-paper review Axial Flux Technology for Motors & Generators Advantages n No eddy-current losses n Excellent power/weight, power/volume ratios n Extremely high efficiency at high speeds n Absolutely smooth rotation n Excellent controllability n Very low voltage drop under load in generators n No eddy-current losses n Excellent power/weight, power/volume ratios n Extremely high efficiency at high speeds n Absolutely smooth rotation n Excellent controllability n Very low voltage drop under load in generators

34 34 White-paper review Axial Flux Technology for Motors & Generators n High- and medium speed alternators n Direct drive for ultra-accurate position stages and rotary tables n Drives for high speed motors with or without transmissions n Spindles and flywheels n High- and medium speed alternators n Direct drive for ultra-accurate position stages and rotary tables n Drives for high speed motors with or without transmissions n Spindles and flywheels Applications

35 35 White-paper review Axial Flux Technology for Motors & Generators Implementations Tactical automatic charger (24V, 1kW, 8 kg) MIL-standard EMI/RFI protected portable dual-Input diesel generator (28 VDC, 1.5 kW, 55 kg) GeneratorGasoline engineController Dual-input Converter Generator Diesel engine Charge controller n Generators and APU

36 36 White-paper review Axial Flux Technology for Motors & Generators Implementations AT - 25 for EV (25 kW, 10,500 rpm, OD=260 mm) AT gear-box 1: kW for EV Motor Gear - box n Liquid-cooled motors for heavy electric vehicle

37 37 White-paper review Axial Flux Technology for Motors & Generators M300 (300 W 5,000 rpm 0.9 kg, OD=127 mm) M300 + worm gear (260 W 100 rpm) Implementations n Air-cooled motors for light electric vehicle

38 38 White-paper review Axial Flux Technology for Motors & Generators Turntable RT -200 (accuracy +/- 1, runout 3um) Implementations Ultra accurate rotating optical bench n Direct drive rotating stages

39 39 White-paper review Axial Flux Technology for Motors & Generators Hub wheel-drive for robotics 3kg (50 Nm 50 rpm) Implementations n Motor-reducer assembly

40 40 White-paper review Axial Flux Technology for Motors & Generators Motor Technology Estimation ( 1999, per VW ) Coreless Axial Flux Switched Reluctance Motor Wirkungsgrad Asynchronmotor TF- Motor PM-Synchron motor Leistungsgewicht [kW/kg] Design Phase serienmäßig verfügbar Prototypen vorhanden 21 Eisenloser Axialfluxmotor Trans flux Status Serial production Prototypes Efficiency Specific power


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