A PWM AC to DC converter with fixed switching frequency
A PWM AC to DC converter with fixed switching frequency
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DOI：
10.1109/28.60060
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发表时间：
1988-10
期刊：
影响因子：
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通讯作者：
R. Wu;Shashi B. Dewan;G. Slemon
中科院分区：
文献类型：
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作者：
R. Wu;Shashi B. Dewan;G. Slemon
针对脉宽调制(PWM)AC-DC转换器，提出了一种固定开关频率的预测电流控制策略(PCFF控制)。文中介绍了其工作原理和实现方法，并给出了实验结果，实验结果表明，该变流器具有较高的动态性能和双向功率传输能力。在单位功率因数下，线路电流接近正弦。与滞环电流控制相比，PCFF控制产生了更好的开关模式。这减少了线路电流中的谐波，降低了开关器件上的应力。
For a PWM (pulsewidth-modulated) AC-to-DC converter, a predicted current control strategy with fixed switching frequency (PCFF control) is proposed. Its principle and implementation are described, and experimental results are provided which show that the converter under PCFF control has bidirectional power transmission ability with high dynamic performance. The line currents are close to sinusoidal with unit power factor. The PCFF control produces a better switching pattern than hysteresis current control. This results in a reduction of harmonics in the line currents and lower stress on the switching devices.>