微型氣渦輪機之電網併聯介面設計

Design and Implementation of an Utility Interface for Micro-turbine Generation System

本文旨在發展適用於微型氣渦輪機電能轉換器的整合控制策略，除規劃以單一電流迴授路徑，完成其市電併聯供電及備用發電機兩種模式控制外，亦擬在發電機的並聯供電模式中，融入負載功因矯正及主動濾波功能，使氣渦輪機的並聯運轉兼具負載管理概念，增加氣渦輪發電機組之經濟運轉價值。由電腦模擬及系統測試結果顯示，本計劃所提之方法確具可行性，該研究成果應具實務參考價值。

 

In this paper, based on the paradigm of power converter technique, a new approach to control the micro turbine generator had been proposed. The control goals of the proposed converter merge with the concepts of power generation and quality enhancement, which can supply active power and compensate reactive power simultaneously to keep the unity power factor of the AC source at the customer site. The method proposed in this paper had been examined under various scenarios, including the loss of grid and the parallel operation. By those case studies with computer simulations and hardware experiments, the results show that the proposed approach not only effectively compensate the mains current to be sinusoidal for the grid-tied operation, but also ensure the voltage quality at the demand side in spite of loss of mains.