Enhancement of output voltage quality of multi level inverter using series active filter

2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015] Pub Date : 2015-03-19 DOI:10.1109/ICCPCT.2015.7159333

S. Parthasarathy, S. Karthickkumar, Pg Scholar, S. Rahini

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引用次数: 4

Abstract

In modern power electronic world, inverter is widely used to satisfy industrial needs, such as Adjustable Speed Drives (ASD), arc furnaces, UPS and used in renewable energy sector in order to integrate solar panel into grid. During this conversion process, waveform distortion induced in the output side of inverter. The waveform distortion occurs due to harmonics created by those devices, which results in devastation effects in industry and in power grid. In order to avoid those problems, Seven Level Inverter is proposed and controlled by Phase Shift Carrier Pulse Width Modulation (PSC-PWM) technique. The output voltage quality of this Multi Level Inverter is to be enhanced with help of Series Active Filter (SeAF), which injects compensation voltage generated by control theory of instantaneous real and reactive power theory by means of series injection transformer. In this paper, the effectiveness of Series Active Filter has to be analyzed in terms of voltage harmonic performance under different modulation indexes and switching frequencies the help of MATLAB/Simulink 2010.

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采用串联有源滤波器提高多电平逆变器输出电压质量

在现代电力电子领域，逆变器被广泛用于满足工业需求，如可调速驱动器(ASD)、电弧炉、UPS等，并用于可再生能源领域，以将太阳能电池板并入电网。在此转换过程中，逆变器输出侧会产生波形畸变。由于这些设备产生的谐波导致了波形失真，这对工业和电网造成了破坏性影响。为了避免这些问题，提出了七电平逆变器，并采用相移载波脉宽调制(PSC-PWM)技术进行控制。串联有源滤波器(SeAF)通过串联注入变压器注入瞬时实功率和无功功率控制理论产生的补偿电压，提高了多电平逆变器的输出电压质量。本文借助MATLAB/Simulink 2010分析了串联有源滤波器在不同调制指标和开关频率下的电压谐波性能。

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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2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015]

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