Model-based Generation of Scaling Laws for Radial-Gap Permanent Magnet Motors Oak Ridge National Laboratory

Format:

Conference/Event

Author/Creator:

Otaduy, Pedro J., author.

Conference Name:

Future Car Congress (2000-04-02 : Crystal City, Virginia, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

Oak Ridge National Laboratory's (ORNL) computer code PMM_IDT (Permanent Magnet Motor Interactive Design Tool) was used to study the sensitivity to changes in design parameters at constant power output and scaling laws for similar designs with different rated power outputs. The base design used was a radial-gap motor with 30 kW of net output characteristic of the PNGV "Series" vehicles. Sensitivity parameters studied were active length, magnet and air gap thicknesses, and number of magnets. Power output variation approaches considered were active length, stator external diameter, and rotor external diameter. The impact on efficiency, cost, weight, specific power, cooling requirements, drive current and voltage requirements, and demagnetization margins are presented. Common constraints in this study are: Hollow rotor, trapezoidal back emf - 212 V maximum - and double layer winding leading to an even number of turns per slot

Notes:

Vendor supplied data

Publisher Number:

2000-01-1570

Access Restriction:

Restricted for use by site license