本文旨在分析具循環電流抑制與電容電壓平衡之交錯式維也納整流器
。為因應目前社會對於能源的需求不斷提高，電路多採取並聯方式以提高系統容量，然而實務上並聯系統會因為電路狀態相異等不理想因素導致循環電流產生。目前抑制循環電流的策略多採用硬體隔離與改善控制技術兩種方式，前者會使系統體積和成本增加，因此文獻大多針對後者進行研究
，本文亦如上所述，在不增加額外硬體的前提下，透過調變法與控制技術的改善以達到循環電流的抑制；為此，本文首先建立電路數學模型並探討循環電流的成因，接著分析空間向量脈波調變及循環電流抑制調變兩者對循環電流的影響。而維也納整流器是本文所採用之架構，其優點為低諧波失真與高功率因數，缺點是直流側由兩組電容串聯進而產生電壓不平衡的問題，此外雖然採用交錯式控制能提升三相電源之輸入電流品質，但也會加劇循環電流的影響。綜合以上所述，本文探討如何在交錯式控制的基礎上達到循環電流抑制以及電容電壓平衡，並透過電路模擬軟體PSIM建構兩組功率為5 kW之維也納整流器並確認可行性，實務上選用德州儀器之TMS320F28379D作為控制核心，最終驗證所提策略之有效性。

The purpose of this thesis is to analyze an interleaved Vienna rectifier with circulating current suppression and capacitor voltage balancing. In response to the increasing demand for energy in society, circuits often adopt parallel configurations to enhance system capacity. However, in practical applications, the mismatched circuit conditions and other unfavorable factors can result in circulating currents. Currently, strategies to suppress circulating currents primarily employ hardware isolation and control improvement techniques. The former increases system size and cost, so the literature predominantly focuses on the latter. Similarly, this thesis aims to suppress circulating currents through modulation techniques and control improvements without the need for additional hardware. To achieve this, the thesis first establishes a mathematical model of the circuit and investigates the causes of circulating currents. It then analyzes the effects of space vector pulse width modulation and circulating current suppression modulation on circulating currents. The Vienna rectifier is the adopted architecture in this thesis, known for its low harmonic distortion and high power factor. However, it faces the issue of voltage imbalance on the DC side due to two sets of capacitors connected in series. Additionally, while interleaved control can enhance the current quality of the input power supply, it can also exacerbate the impact of circulating currents. Taking all the above into account, this thesis explores how to achieve circulating current suppression and capacitor voltage balancing based on interleaved control. It constructs two 5 kW Vienna rectifiers using the circuit simulation software PSIM to confirm feasibility. In practical implementation, the Texas Instruments TMS320F28379D is selected as the control core to ultimately realize the proposed strategy and verify its effectiveness.

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