微電網內建置之分散式電源(DG)導致電力潮流或故障電流路徑與方向多元化，使得傳統輻射型系統之過電流保護方式已無法滿足需求。本論文整合智慧型電子裝置(IED)、監控系統(SCADA)及IEC 61850通訊架構，建立一套適用於微電網之保護管理系統(PMS)。首先，利用現場既設IED，用以量測DG之發電、饋線負載之用電及開關狀態等系統資訊，再透過IEC 61850標準通訊協定，將訊息傳回後端之SCADA監控系統平台中之保護管理系統。保護管理系統主要係透過IED邏輯規劃來協調各IED間之跳脫順序，並應用IEC 61850所定義之GOOSE功能，作為各IED間傳遞閉鎖資訊之媒介。此外為因應微電網運轉於孤島模式或併網模式下之電流差異性，PMS導入IED之保護群組設定(Group Setting)功能，使其具備自我調適能力(Adaptivity)。基本上，只要偵測到微電網之拓撲結構改變，PMS即重新計算短路故障電流，分析所得即為更新IED保護群組設定之依據。因此，只要故障發生IED皆可迅速隔離故障。本論文最後應用Matlab/Simulink與Elipse Power Studio進行模擬分析，驗證本研究所提出保護機制的可行性。

There are number of Distributed Generations (DGs) installed in microgrid, which may diverse the path or direction of load current or fault current. Such that the overcurrent protection scheme for traditional radial type distribution system no longer be useful for microgrid. To find out the solution, a microgrid protection management system (PMS) which integrated intelligent electronic device (IED), supervisory control and data acquisition (SCADA) with IEC 61850 communication protocol is proposed in this thesis. First of all, by aid of existed Intelligent Electronic Devices (IEDs) the generation of DG, loading of feeder, and status of circuit braker can be measured. Those system informations were sent back to PMS through IEC 61850. Then, PMS perform logic programming for each IED to coordinate their tripping sequence. Furthermore, the GOOSE message which is defined in IEC 61850 is used as the media among IEDs. Moreover, because of the difference of the fault current in microgrid between in grid-connected mode and in islanding mode, the group setting feature is applicable to resolve this issue and it makes PMS more adaptive. Basically, PMS will recalculate the fault current whenever the topology of microgrid is changed. The results are used to update the group setting of IED. Hence, IED always can quickly isolate the fault as far as the fault happened. Finally, the Matlab/Simulink and Elipse Power Studio are introduced to simulate and varify the proposed method.

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