Efficiency Improvement of Electric Motor Drives Using Dynamic Motor Drive Technology Tula Technology Incorporated

Format:

Book

Conference/Event

Author/Creator:

Zakirul Islam, Md., author.

Contributor:

Arvanitis, Anastasios

Carvell, Paul

Chen, Zhiqian

Leng, Siyu

Phillips, Andrew

Singh, Amnish

Tripathi, Adya

Younkins, Matthew

Conference Name:

WCX SAE World Congress Experience (2022-04-05 : Detroit & Online, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2022

Summary:

Tula Technology has developed a novel, patented motor control strategy called Dynamic Motor Drive (DMD®), which reduces the light-load losses of electric motor drives by intermittently pulsing motor torque. Since passenger vehicles frequently operate at light loads, DMD can significantly reduce the energy consumption of electric vehicles, extending their range. DMD is particularly beneficial for rare-earth-free or reduced-rare-earth permanent magnet (PM)-based electric motor drives, and can help make these less expensive, more environmentally friendly motors range-competitive with traditional PM motors.This paper details the efficiency improvement when DMD is applied to a rare-earth-free synchronous reluctance motor (SynRM). We present recent experimental results to show the loss reduction by DMD in a prototype 8-kW three-phase SynRM, and compare them to simulation results. Tula's models indicate that DMD control, when applied to a 150-kW SynRM driving a Chevrolet Bolt, would reduce energy use by approximately 2.5% over the WLTP driving cycle. A detailed discussion is provided on DMD's theoretical background, motor design and control techniques to optimize system efficiency with acceptable noise, vibration, and harshness

Notes:

Vendor supplied data

Publisher Number:

2022-01-0721

Access Restriction:

Restricted for use by site license