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STABILlTY OF PWM HVDC VOLTAGE REGULATOR BASED ON PROPORTIONAL-INTEGRAL FEEDBACK
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Author(s) |
B. T. Ooi; Y. Guo; X. Wang; H.C. Lee; H. L Nakra; J. W. Dixon |
Abstract |
This paper shows that the Voltage Regulator, as in all feedback systems, has possibility of instability. The danger can be avoided by understanding its origins. One eigenmode is the Capacitor Charging Mode. This mode can be stabilized by proportional and integral feedback. Analytical insights for the design of this mode have been developed through simplified equations. Experimental results are given from 5 KVA laboratory converter driven by multi-DSP real time controller. There is a second eigenmode which becomes unstable when the line resistance is low. The stabilization of this second mode by pole-placement using an observer is the subject of a future paper. |
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Filename: | Unnamed file |
Filesize: | 3.751 MB |
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Type |
Members Only |
Date |
Last modified 2019-08-06 by System |
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