动态稳定间接电流控制SPWM升压型三相整流器

Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting Pub Date : 1988-10-02 DOI:10.1109/IAS.1988.25139

J. Dixon, B. Ooi

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引用次数: 29

摘要

采用间接电流控制的正弦脉宽调制整流器可获得单位功率因数的近正弦波形电流。结果表明，间接电流控制必须对LdI/dt进行动态补偿，否则稳定区域将受到很大限制。当补偿正确时，动态间接电流控制器可以并联和/或串联操作相同的桥式整流模块阵列，以增加额定功率。通过将三角形载波的相移均匀地错开到阵列中的每个模块，可以消除开关谐波。高质量的波形可以用慢速开关器件合成，如gto(栅极关断)，甚至是力整流晶闸管。开关损耗也降低了

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Dynamically stabilized indirect current controlled SPWM boost type 3-phase rectifier

Near-sinusoidal-waveform currents of unity power factor can be obtained from the sinusoidal PWM (pulsewidth-modulated) rectifier using indirect current control. It is shown that the indirect current control must compensate dynamically for LdI/dt or else the stability region is very restricted. When correctly compensated, the dynamic indirect current controller can operate arrays of identical bridge rectifier modules in parallel and/or in series to augment the power ratings. By evenly staggering the phase shifts of the triangular carrier to each module in the arrays, switching harmonics can be eliminated. High-quality waveforms can be synthesized with slow switching devices such as GTOs (gate-turn-offs) and even force-commutated thyristors. Switching losses are also reduced.<>

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Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting

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