无电流传感器的电压控制半桥中性点二极管箝位整流器

2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02. Pub Date : 2002-12-11 DOI:10.1109/ICIT.2002.1189935

B. Lin, Chun-Hao Huang, T. Wei

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引用次数: 0

摘要

为了实现高功率因数、低电流畸变和直流母线电压恒定，提出了一种压控中点二极管箝位整流器。所采用的整流器的每个功率半导体的电压应力等于直流母线电压的一半，而不是传统的开关模式整流器的直流链路电压的全部。采用不带电流传感器的电压控制方案跟踪线路电流指令。电源开关的控制信号由直流链路电压控制器和中性点电压补偿器输出。采用基于载波的PWM方案来绘制干净的正弦线电流，高输入功率因数，可调节直流链路电压和平衡电容器电压。所采用的整流器的交流端产生三个电压等级。为了验证所提出的操作方案，通过仿真和实验结果给出了系统的性能特征。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Voltage-controlled half-bridge neutral-point diode-clamped rectifier without current sensor

A voltage-controlled neutral-point diode-clamped rectifier is proposed to achieve high power factor, low current distortion and constant dc bus voltage. The voltage stress of each power semiconductor of the adopted rectifier is equal to half dc bus voltage instead of full dc link voltage in the conventional switching mode rectifier. A voltage control scheme without current sensor is employed to track the line current command. The control signals of the power switches are derived from the dc link voltage controller and neutral point voltage compensator. A carrier-based PWM scheme is employed to draw a clean sinusoidal line current, high input power factor, regulated dc link voltage and balance capacitor voltages. Three voltage levels are generated on the ac terminal of the adopted rectifier. To verify the proposed operation scheme, performance characteristics are given by the simulation and experimental results.

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来源期刊

2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.

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