本論文主要研究一種新型的非隔離型併網的串疊型微型換流器。電路採取兩組換流器串疊的方式，其中一組採定電流回授控制，另一組採定電壓回授控制。本文最後實現一組輸出規格為300 W/110 Vrms的串疊型微型換流器雛型電路。根據實驗結果顯示，證明是一可行性的架構，且本論文所研究的架構可提供低成本、電路簡單及良好的整體效率。

This thesis aims to study a novel non-isolated grid-tied cascode-micro-inverter. The studied solar micro-inverter consists of two cascode-connected power circuits. One inverter circuit is operated with constant-current control design while the other one is with constant-voltage control. A 300W prototype inverter was designed and implemented. According to the experimental verifications, low cost, simple configuration and good overall efficiency can be achieved by the proposed scheme.

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