| Summary: | 碩士 === 國立臺灣科技大學 === 電機工程系 === 88 === The major purpose of this thesis is to apply a commercial circuit simulation software, Intusoft ICAP/4, to simulate the operation property of a three-phase AC/DC power supply system of the MRTS under normal and abnormal conditions, and based on the maximal DC traction demand and the electric demand of stations. The disadvantages of conventional approaches that separate the calculations of AC and DC networks and the necessary of setting the control variables of the AC/DC converters are avoided in the proposed method. First of all, the mathematical models of the major facilities of the AC/DC power supply systems of the MRTS were introduced. These equivalent circuit models were implemented by the Intusoft IsSpice. After the model of a simple converter bank was implemented. The effects of source voltage unbalance and harmonic pollution on the rectifier were evaluated. Finally, the full-scale model of the AC/DC network of the Panchiao-Nankang line of Taipei MRTS was implemented and simulated by the IsSpice. The voltage profiles, power flows and harmonics on both AC and DC networks can be obtained in a single run. The simulation results have verified the correctness and feasibility of the proposed method.
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