中国电机工程学报Issue(21)：5483-5491,9.DOI:10.13334/j.0258-8013.pcsee.2015.21.012
含不控整流的交-直-交变换器频域谐波分析模型
A Frequency Domain Harmonic Model for Uncontrolled Rectifier in AC/DC/AC Converters
摘要
Abstract
In order to estimate the harmonic currents generated by the uncontrolled rectified AC/DC/AC converter more accurately, a new harmonic model to study its harmonic generation characteristics was proposed. First an equivalent voltage source converter circuit was proposed to simplify the harmonic analysis of the AC/DC/AC converter. Estimation formula was derived for the circuit equivalent parameters. By analyzing the principle of the circuit capacitor’s charging mode and discharging mode, the relationship among the supply voltages and its generated harmonic currents was explored in the frequency domain with an analytical form. Based on the mathematical model, the diode’s conduction angle and extinction angle were calculated and the DC voltage was estimated. This model transfers the AC/DC/AC converter nonlinear characteristics in the time-domain to a harmonically coupled admittance matrix model in the frequency-domain. Moreover, the matrix elements can explicitly reflect the coupled relationship between the harmonic voltages and the generated harmonic currents. The model’s validity and accuracy have been verified by comparing the results from its calculation, the time domain simulation, lab experiment and the traditional constant current source model’s calculation.关键词
交-直-交变换器/三相电压型整流器/谐波分析/频域模型Key words
AC/DC/AC converter/three-phase voltage source rectifier/harmonic analysis/frequency domain model分类
信息技术与安全科学引用本文复制引用
孙媛媛,李佳奇,尹志明,王广柱..含不控整流的交-直-交变换器频域谐波分析模型[J].中国电机工程学报,2015,(21):5483-5491,9.基金项目
国家自然科学基金(51107074，51177095)；山东省优秀中青年科学家科研奖励基金(BS2013NJ005)。 Project Supported by National Natural Science Foundation of China (51107074,51177095)；Promotive Research Fund for Excellent Young and Middle-aged Scientists in Shandong Province(BS2013NJ005) （51107074，51177095）
