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Low-harmonic thyristor rectifiers applying current injection

机译：应用电流注入的低谐波晶闸管整流器

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摘要

Application of the third harmonic current injection in three-phase full-bridge thyristor rectifiers is analyzed. Spectra of the rectifier output terminal voltages are derived. Results of the optimal current injection for diode bridge rectifiers are generalized for the thyristor rectifiers, and the waveform of the optimal injected current is derived. It is shown that for the optimal third harmonic current injection, the current injection network takes 8.571% of the rectifier input power from the thyristor bridge output terminals, regardless the thyristor firing angle. A current injection network with a passive resistance emulator that provides recovery of the power taken from the thyristor bridge output terminals is proposed. Volt-ampere ratings of the magnetic components are derived. An algorithm to control the switches in the resistance emulator is presented. Analytically obtained results are experimentally verified.
机译：分析了三次谐波注入在三相全桥可控硅整流器中的应用。得出整流器输出端电压的频谱。对于晶闸管整流器，概括了二极管桥式整流器的最佳注入电流的结果，并得出了最佳注入电流的波形。结果表明，对于最佳的三次谐波电流注入，电流注入网络从晶闸管桥输出端子获取整流器输入功率的8.571％，而与晶闸管的触发角无关。提出了一种具有无源电阻仿真器的电流注入网络，该无源电阻仿真器可恢复从晶闸管桥输出端子获取的功率。得出磁性组件的伏安额定值。提出了一种控制电阻仿真器中的开关的算法。解析获得的结果经过实验验证。

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