电力系统及其自动化学报2017，Vol.29Issue(11)：7-12,6.DOI:10.3969/j.issn.1003-8930.2017.11.002
三相三电平功率因数校正变换器并列运行的建模与控制
Modeling and Control of Three-phase Three-level Power Factor Correction Under Parallel Operation
摘要
Abstract
In order to improve the performance of three-phase three-level power factor correction(PFC)converter under parallel operation,an overall mathematical model based on state space averaging method is proposed considering the paral?lel operation on AC side. The path and generation mechanism of circulating currents between equipments under parallel op?eration are revealed,and the relationship between the balance control of DC side voltage and circulating current,the corre?sponding impact factors and the control principle are studied systematically. A three-axis(i.e.,direct,cross and zero axes) control loop is proposed,and space vector modulation technique is used to conduct simulations. Results show that the pro?posed method can achieve a balance of DC side voltage and suppress the circulation currents,which improve the system performance as a whole. Moreover,it is verified that there exists an approximately linear relationship between the control of voltage balance and the suppression of circulating currents when the equipments are under parallel operation.关键词
三电平功率因数校正/并列运行/整体数学模型/循环电流Key words
three-level power factor correction/parallel operation/overall mathematical model/circulation current分类
信息技术与安全科学引用本文复制引用
郭锦波,贾贵玺,张宏达,杨挺..三相三电平功率因数校正变换器并列运行的建模与控制[J].电力系统及其自动化学报,2017,29(11):7-12,6.基金项目
国际科技合作与交流专项资助项目(2013DFA11040),国家自然科学基金资助项目(61172014) （2013DFA11040）
