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首页> 外文会议>Annual IEEE Applied Power Electronics Conference and Exposition >Single-phase PWM rectifier with power decoupling ripple-port for double-line-frequency ripple cancellation
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Single-phase PWM rectifier with power decoupling ripple-port for double-line-frequency ripple cancellation

机译：单相PWM整流器，带电源去耦纹波端口，用于双线频率纹波消除

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摘要

This paper proposes a new technique for double-frequency ripple-power decoupling in a single-phase PWM rectifier that does not require an electrolytic capacitor, which improves the reliability of the system for long-life applications such as LED lighting. A ripple-port is added in parallel with the output of the PWM rectifier to filter the double-line-frequency ripple using the minimum capacitance necessary for power buffering. Hence, a very small, highly reliable film capacitor is used, which will improve the reliability dramatically compared to the bulky electrolytic capacitor option, which increased the power density of the system. The proposed topology doubles the MTBF increases the lifetime by one order of magnitude. Moreover, the design and control of the ripple-port is independent from the PWM rectifier circuit, so it can be dropped in as an auxiliary circuit to an existing design.
机译：本文提出了一种新技术，用于双相PWM整流器中的双频纹波 - 功率去耦，其不需要电解电容器，这提高了系统的可靠性，如LED照明等长寿命应用。 与PWM整流器的输出并联加入纹波端口，以使用功率缓冲所需的最小电容来滤波双线频率纹波。 因此，使用非常小的高度可靠的薄膜电容器，其将与庞大的电解电容器选项相比显着提高可靠性，这增加了系统的功率密度。 所提出的拓扑加倍MTBF将寿命增加一个数量级。 此外，纹波端口的设计和控制与PWM整流电路无关，因此它可以作为辅助电路丢弃到现有设计。

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