本論文係以微渦輪機經由整流器-換流器與傳輸線並聯市電架構下，比較含與不含PID控制器之穩定度、穩態及動態做為研究目標。在三相平衡系統下採用交直軸等效電路模型，分別建立微渦輪機、永磁發電機、整流-換流系統及市電等之模型，並推導其數學模型以完成整體動態方程式。在穩態方面，則分別對不同輸入燃料流率對系統之特性影響及改變系統參數對系統之特性影響做一詳細討論。在動態研究方面，完成市電端短路故障及其它參數變動之模擬，並且模擬負載端變動情形。

This thesis presents the comparative results of the stability, steady state, and dynamics of a microturbine (MT) with and without a PID controller when connecting to a utility grid through an AC/DC/AC converter and a transmission line. The d-q axis equivalent-circuit model is employed to establish the models for the microturbine, the permanent-magnet generator, the AC/DC/AC converter system, and the grid to derive the complete dynamic equations of the studied system under three-phase balanced loading conditions. Steady-state performance of the studied system under different values of fuel-mass flow rate is examined. Dynamic simulations of the studied system subject to a short-circuit fault at utility grid and some parameter alteration are also carried out. The simulations of the system under various load changes are accomplished.

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