本論文主要以發展串接型橋式轉換器直流鏈電壓平衡控制之前饋項為探索主題。在本篇文章中，我們使用原生電路模型（generic model）來發展控制演算法，並且進一步使用發展出的演算法對串接型橋式轉換器進行潮流分析。本篇發展出的前饋項電容電壓平衡控制是建構在以一種叫APB為核心技術的電容電壓平衡方法，有了這樣的控制核心，我們可以控制電容電壓在設定的時間點達到特定的電壓值。在本篇論文當中，我們會把我們的轉換器操作成靜態虛工補償器。實驗波形展示了，以星形方式並網的靜態虛工補償器原型（直流鏈電壓操作在70 v, 容量為1 kVA），確實有能力進行電容性和電感性操作。

This thesis developed a feed forward voltage balancing control on controlling the DC bus voltages of a cascaded H-bridge multilevel converter. We use generic model to develop the control algorithm and use the developed algorithm to verify the power flow of H-bridge on cascaded H-bridge multilevel converter. The feed forward voltage balancing control is based on average power balancing (APB) and with proposed algorithm we can make all DC bus voltages on the converter reaching its target value as scheduled. In this thesis we will operate the cascaded H-bridge multilevel converter as a STATic synchronous COMpensator (STATCOM). Experimental waveforms show that the STATCOM prototype（DC bus voltage at 70-v, capacity is 1-kVA） with star configuration is having capability operated under inductive and capacitive mode.

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