Harmonic Analysis on Single-phase-three-level Neutral Point Clamped Voltage Source Converters

ZHONG Qing; HE Qizhang; WANG Gang; FENG Junjie; LI Haifeng

doi:10.14044/j.1674-1757.pcrpc.2018.03.030

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Harmonic Analysis on Single-phase-three-level Neutral Point Clamped Voltage Source Converters

更新时间：2024-09-14

- Harmonic Analysis on Single-phase-three-level Neutral Point Clamped Voltage Source Converters
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 3, Pages: 162-166(2018)
- 作者机构：
  
  华南理工大学电力学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.03.030
  CLC： TM46
- Published：2018，
- 稿件说明：
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[1]钟庆,何淇彰,王钢,冯俊杰,李海锋.单相二极管箝位三电平电压源型换流器谐波分析[J].电力电容器与无功补偿,2018,39(03):162-166.

ZHONG QING, HE QIZHANG, WANG GANG, et al. Harmonic Analysis on Single-phase-three-level Neutral Point Clamped Voltage Source Converters. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 162-166.
[1]钟庆,何淇彰,王钢,冯俊杰,李海锋.单相二极管箝位三电平电压源型换流器谐波分析[J].电力电容器与无功补偿,2018,39(03):162-166. DOI： 10.14044/j.1674-1757.pcrpc.2018.03.030.

ZHONG QING, HE QIZHANG, WANG GANG, et al. Harmonic Analysis on Single-phase-three-level Neutral Point Clamped Voltage Source Converters. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 162-166. DOI： 10.14044/j.1674-1757.pcrpc.2018.03.030.

摘要

电压源型换流器（voltage source converters

VSC）正常工作时会产生谐波

对电网造成污染。因此

有必要建立其谐波分析模型

分析谐波产生机理和相互作用规律。本文首先分析了单相二极管箝位三电平电压源型换流器时域下的数学模型且建立不同调制方式下开关函数的动态相量模型

并将单相三电平时域模型转化为动态相量谐波分析模型;然后基于龙格库塔法解得不同调制方式下

交流侧电流和直流侧电压各次谐波含量;接着

通过仿真分析

验证了所提出谐波分析模型的正确性;最后

通过分析单相三电平电压源型换流器的动态相量模型

揭示了交流侧电流和直流侧电压谐波产生的机理和相互影响规律。

Abstract

Voltage source converters（VSC）in operation generate harmonic

leading to pollution to the power grid.Thus

it is necessary to set up its harmonic analysis model in order to analyze its harmonic generation mechanism and interaction rule.In this paper

the mathematical model of single-phase-three-level neutral point clamped voltage source converter under time-domain is analyzed firstly

the dynamic phasor model of switching function at different modulations is set up and the time-domain model is transferred into the dynamic phasor harmonic analysis model.Then

contents of harmonic for current at AC side and voltage at DC side are obtained at different modulation on the basis of Runge-kutta method.After that

the correctness of the proposed harmonic analysis model is verified by simulation analysis and generation mechanism and interaction rule for the current at AC side and voltage at DC side is revealed through the analysis of the dynamic phasor model of the single-phase-three-level neutral point clamped voltage source converter.

关键词

单相二极管箝位三电平电压源型换流器谐波分析开关函数动态相量法

Keywords

single-phase-three-level VSCharmonic analysisswitching functiondynamic phasor method

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