Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Load Modeling of Continuous Miner Induction Motors.

Authors
Morley-LA; Trutt-FC; Jamison-RC
Source
NTIS: PB 293-462 :171 pages
Link
NIOSHTIC No.
10001205
Abstract
Two methods are presented to determine the mechanical shaft torque as a function of time for an induction motor. The methods are based on the motor equivalent circuit and use as input variables of the motor terminal voltage, line current, input power, and power factor. One method uses all four variables and the other uses only voltage and current. The test data deals specifically with continuous miners, but the theory could be applied to other mining machines driven by multiple induction motors. Results are given for the tramming, maneuvering, cutting, and cutting with loading operations and are in the form of a minimum, a maximum, and an average of the shaft-torque time function. The theoretical development and computer implementation are discussed for both methods.
Publication Date
19780101
Document Type
CP; Final Contract Report;
Fiscal Year
1978
NTIS Accession No.
PB-293462
NTIS Price
A09
Identifying No.
OFR 24-79
Source Name
NTIS: PB 293-462
State
PA;
Performing Organization
Pennsylvania State Univ.
TOP