通过基于晶闸管的二极管前端扩展的交流驱动器的再生和穿越能力

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003. Pub Date : 2003-10-12 DOI:10.1109/IAS.2003.1257765

N. Raju

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引用次数: 10

摘要

本文提出了基于可控硅的电路扩展到二极管整流器，以允许在制动期间再生和在电压下降期间穿越。所提出的拓扑结构使用两个线路换向的可控硅桥，一个连接到直流母线轨道，另一个连接到直流母线中心抽头。连接到直流母线轨道的逆变可控硅桥在再生期间将能量从直流链路传输到市电。连接到中心抽头的桥为反相桥提供改进的换相。此外，它还可用于在输入电压下降时升压直流母线。该电路为PWM整流器和其他目前使用的再生和穿越模块提供了更低成本的替代方案。所提出的基于可控硅的电路的优点包括低成本和坚固耐用。给出了模拟波形来表示电路的工作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Regenerative and ride-through capability for AC drives through thyristor-based extensions of the diode front-end

This paper presents SCR-based circuit extensions to a diode rectifier to allow regeneration during braking and ride-through during voltage sags. The proposed topology uses two line-commutated SCR bridges-one connected to the DC bus rails and the other to the DC bus center-tap. The inverting SCR bridge connected to the DC bus rails transfers energy from the DC link to the mains during regeneration. The bridge connected to the center-tap provides improved commutation to the inverting bridge. In addition, it can be used to boost the DC bus during input voltage sags. The circuit provides a lower cost alternative to PWM rectifiers and other currently used regenerative and ride-through modules. Advantages of the proposed SCR-based circuit include low cost and ruggedness. Simulation waveforms are presented to indicate circuit operation.

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来源期刊

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.

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