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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Collins Jr., E.R. Mansoor, A. |
| Copyright Year | 1997 |
| Description | Author affiliation: Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA (Collins, E.R., Jr.) |
| Abstract | Voltage sags are normally described by magnitude variation and duration. In addition to these quantities, sags are also characterized by unbalance (asymmetry), nonsinusoidal waveshapes, and phase angle shift (phase jump). These factors are important for determining the behavior of AC motor drives during sags. Voltage unbalance and phase angle shifts cause large unbalanced source currents to excessive voltage ripple in the DC-link, and reduced DC-link average voltage. The response of the motor and drive to these varies considerably. Experimental results clearly show the load dependent behavior of a typical drive. The ability of the drive to ride-through a voltage sag is dependent upon the energy storage capacity of the DC-link capacitor, the speed and inertia of the load, the power consumed by the load, and the trip point settings of the drive. The control system of the drive has a great impact on the behavior of the drive during the sag and after recovery. The trip point settings of many drives can by field-adjusted and greatly improve many nuisance trips resulting from minor voltage sags. |
| File Size | 739647 |
| File Format | |
| ISBN | 0780340906 |
| ISSN | 10493328 |
| DOI | 10.1109/TEXCON.1997.598533 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1997-05-06 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Power quality AC motors Voltage fluctuations Energy storage Drives Circuit faults Power system stability Capacitors Electronics industry Impedance |
| Content Type | Text |
| Resource Type | Article |
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