Title | ||
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A new energy optimal control scheme for a separately excited DC motor based incremental motion drive |
Abstract | ||
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This paper considers minimization of resistive and frictional power dissipation in a separately excited DC motor based incremental
motion drive (IMD). The drive is required to displace a given, fixed load through a definite angle in specified time, with
minimum energy dissipation in the motor windings and minimum frictional losses. Accordingly, an energy optimal (EO) control
strategy is proposed in which the motor is first accelerated to track a specific speed profile for a pre-determined optimal
time period. Thereafter, both armature and field power supplies are disconnected, and the motor decelerates and comes to a
halt at the desired displacement point in the desired total displacement time. The optimal time period for the initial acceleration
phase is computed so that the motor stores just enough energy to decelerate to the final position at the specified displacement
time. The parameters, such as the moment of inertia and coefficient of friction, which depend on the load and other external
conditions, have been obtained using system identification method. Comparison with earlier control techniques is included.
The results show that the proposed EO control strategy results in significant reduction of energy losses compared to the existing
ones. |
Year | DOI | Venue |
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2009 | 10.1007/s11633-009-0267-4 | International Journal of Automation and Computing |
Keywords | DocType | Volume |
speed profile,incremental motion drive imd.,energy optimal control,incremental motion drive (imd).,power dissipation,energy dissipation,dc motor,energy optimization,system identification,moment of inertia | Journal | 6 |
Issue | ISSN | Citations |
3 | 1751-8520 | 5 |
PageRank | References | Authors |
1.11 | 2 | 6 |
Name | Order | Citations | PageRank |
---|---|---|---|
milan | 1 | 5 | 1.11 |
sheta | 2 | 5 | 1.11 |
vivek | 3 | 5 | 1.11 |
Vivek Agarwal | 4 | 145 | 27.82 |
paluri | 5 | 5 | 1.11 |
P. S. V. Nataraj | 6 | 98 | 12.36 |