An active DC link filter for two frequency electric locomotives
An active DC link filter for two frequency electric locomotives
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DOI：
10.1049/cp:19950186
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发表时间：
1995-03
期刊：
影响因子：
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通讯作者：
T. Larsson;Stefan Östlund
中科院分区：
文献类型：
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作者：
T. Larsson;Stefan Östlund
通过将电力牵引车辆中的无源元件替换为基于电力电子的新电路解决方案，引入了开发更高效车辆的新可能性。在单相线电压下，功率以两倍于线频率脉动。这种功率脉动通常通过放置在牵引驱动装置的DC链路中的无源短路链路来消除。本文提出了一种将无源短路环节换成有源滤波器的可能性。有源滤波器可在16 2/3 Hz和50 Hz电源频率下工作。这对两个频率的机车特别有吸引力。介绍了有源滤波器的设计和控制原则以及设计中的重要参数。计算机仿真验证了该功能。
By substituting passive components in electric traction vehicles for new circuit solutions based on power electronics, new possibilities to develop more effective vehicles are introduced. At single-phase line voltage the power is pulsating with twice the line frequency. This power pulsation is generally eliminated by a passive short-circuit link placed in the DC link of the traction drive. The paper presents a possibility to exchange the passive short-circuit link for an active filter. The active filter enables operation at both 16 2/3 Hz and 50 Hz supply frequency. This is especially attractive for two frequency locomotives. Principle rules of design and control as well as important parameters for the design of the active filter are described. Computer simulations verify the function.