微型氣渦輪機其容量從數十千瓦到數百千瓦，適合 安裝於大電力用戶或工廠中，屬於分散型發電系統 之一種。微型氣渦輪機受到機組尺寸限制，渦輪機 運轉速度常高達每分鐘數十萬轉，導致發電機之輸 出電頻率亦高達數千赫茲，因此微型氣渦輪機系統 需於發電機之輸出端加入一級電力併聯電路。本文 即在研究適用於微型氣渦輪機之市電併聯電路設計 法，其中規劃以電流迴授法，完成其市電併聯供電 控制，同時亦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，本文 所提之方法確具可行性，該研究成果應具實務參考價值。

The MTG is one of distributed generations. The capacity rangesfrom several kW uip to MW，which can be suitably installed at an industrial plant. The MTG is composed of agasturbine， compressor and ACgenerator. They are inertia welded on a single shaft to simplify the mechanical structure of the system. Because the shaft turns at the speed of the turbine，the generatorprovides high frequency AC electricity.This requires a rectifier and an invertertointer face between the AC generator and theutility network.Inthispaper，based ontheparadigm ofcurrentcontrol，anew approach to control the power converterfor an MTG will beproposed. By using ithe developed method，the micro-turbines can be driven as aparallel generator，where ithe operations of ithe proposed generator not only can be used to output ithe sinusoidal current with high power factor，but also is applied for active power filter，helping mitigating the power quality issuescausedby thewide uses of nonlinear loads in the demand side. The method proposed in this：paper is examined under various scenarios. Test results are not only beneficialfor ithe design of micro-turbines，but also help increase the security and reliability of a future deregulationpower system.