It can not always be expected that ferroresonance happens.The ferroresonance is rarely seen on the nonlinear resonance of the power system. If the resonance is transient or steady it may result in overvoltage and over current and also degrade insulation of the equipment. It¡¦s been proved that the rare nonlinear resonance causes some unexplainable damages. Due to increasing power capacity, expanding transmission line and underground line of ferroresonance is increased. This thesis presents the three phase power system with analysis. The magnetic curve was obtained from field measurements and using many kinds of parameters which are from the magnetization characteristic and lines to analysis. Especially emphasized is the width of the hysteresis loop and the effects of magnetic hysteresis in the change of the operating point of the transformer. In the simulation, the thesis compares the effects of magnetic hysteresis with the non-effects of magnetic hysteresis, and compare the differences of parameter critical point to avoid ferroresonance. This thesis has presented some results in investigating the impact of different sets of initial condition on the models of behavior of a ferroresonance circuit.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0217104-152503 |
| Date | 17 February 2004 |
| Creators | Guo, Jin-Yu |
| Contributors | M. Y. Cho, Yin-Chin Wu, Ta-Peng Tsao, Whei-Min Lin, Gary W. Chang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0217104-152503 |
| Rights | campus_withheld, Copyright information available at source archive |
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