带功率因数校正的改进型感应加热逆变器

30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321) Pub Date : 1999-06-27 DOI:10.1109/PESC.1999.785654

H. Calleja, R. Ordoñez

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引用次数: 35

摘要

介绍了一种适用于感应加热的逆变器。它具有功率因数校正和对负载突然变化的快速响应，同时提供改变负载供电的能力。功率变化是通过使用变长序列的脉冲密度调制来实现的;因此，允许实现高数量的功率水平。还规定了使谐波频谱与调制无关所必需的最小质量因子;这确保了大部分的功率转移到负载将在谐振频率。

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Improved induction-heating inverter with power factor correction

An inverter aimed at induction heating applications is presented. It features power factor correction and fast response to sudden changes in the load, while providing the capability to vary the power supplied to the load. Power variation is achieved by means of pulse density modulation using variable-length sequences; thus allowing a high number of power levels to be achieved. The minimum quality factor necessary to make the harmonic spectrum independent of the modulation is also specified; this ensures that most of the power transferred to the load will be at the resonant frequency.

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30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321)

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