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Title: | Non-Linear Analysis of Sudden 3-Phase Short-Circuit in a Synchronous Generator |
Authors: | INOUE, Yoshiaki UEDA, Yoshisuke UENOSONO, Chikasa |
Issue Date: | 31-Mar-1984 |
Publisher: | Faculty of Engineering, Kyoto University |
Journal title: | Memoirs of the Faculty of Engineering, Kyoto University |
Volume: | 46 |
Issue: | 1 |
Start page: | 25 |
End page: | 39 |
Abstract: | The present paper investigates the saturation effect on a sudden 3-phase short-circuit which occurs in a salient-pole synchronous generator used in Kyoto University's model power transmission system. Since the magnetic saturation occurs primarily in the pole-core of the machine, the saturation is taken into account in deriving the directaxis equivalent circuit. First, we make a direct-axis saturation model and then, based upon it, derive a differential equation which regulates flux-linkages under a sudden 3-phase short-circuit condition. With the same degree of accuracy as in the conventional linear theory, this equation can be separated into a set of linear equations which can regulate the armature flux-linkages, and a non-linear differential equation which can regulate the field flux-linkage. By means of such theoretical considerations, simulations and experiments, we clarify how the saturation effects both the amplitudes and the time-constants of the alternating- and the direct-current components of short-circuit currents. |
URI: | http://hdl.handle.net/2433/281261 |
Appears in Collections: | Vol.46 Part 1 |

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