基于迟滞电压和斩波电流控制方法的单相斩波集成ANPCI电压纹波减小

Jagath Vallabhai Missula, R. Adda, P. Tripathy
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引用次数: 1

摘要

本文介绍了基于单相斩波器的五电平有源中性点箝位逆变器(ANPCI)的控制和运行,以减小直流电容的电压纹波。采用电容电压平衡算法对飞行电容(FC)和直流电容电压进行调节。由于直流电容的电压纹波较大,需要较大的直流电容才能产生可接受的五电平输出电压波形。因此,为了减小直流链路电容和FC的电压纹波和尺寸,我们实现了一种基于斩波器的ANPCI (CANPCI),采用两种控制方法,即迟滞电流控制和迟滞电压控制。这些控制方法还可以根据需要限制斩波电感的最大电流。在PSCAD/EMTDC仿真和硬件样机中实现了ANPCI和CANPCI,并对电容电压平衡算法的结果进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reduction of Voltage Ripple for Single-phase Chopper Integrated ANPCI based on Hysteresis Voltage and Chopper Current Control Methods
This paper presents the control and operation of single-phase chopper based five-level active neutral point clamped inverter (ANPCI) to reduce voltage ripple of DC-link capacitors. A capacitor voltage balancing algorithm is implemented to regulate the flying capacitor (FC) and DC-link capacitor voltages. As the voltage ripple of DC-link capacitors is significant, large DC-link capacitors are required to generate an acceptable five-level output voltage waveform. Hence, to reduce the voltage ripple and size of DC-link capacitors and FC, a chopper based ANPCI (CANPCI) is implemented with two control methods, viz., hysteresis current control and hysteresis voltage control methods. These control methods can also limit the maximum chopper inductor current as desired. The ANPCI and CANPCI are implemented in PSCAD/EMTDC simulation and hardware prototype along with the capacitor voltage balancing algorithm and their results are compared.
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