|本期目录/Table of Contents|

[1]宋春伟,郭永洪,曾正,等. 共直流母线并网逆变器并联系统运行方式[J].电机与控制学报,2017,21(12):9-16.[doi:10.15938/j.emc.2017.12.002]
 Chun-wei,GUO Yong-hong,ZENG Zheng,et al. Operation method for grid-connected inverter parallel systemwith common DC linkSONG[J].,2017,21(12):9-16.[doi:10.15938/j.emc.2017.12.002]
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 共直流母线并网逆变器并联系统运行方式(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
21
期数:
2017年12
页码:
9-16
栏目:
出版日期:
2017-12-01

文章信息/Info

Title:
 Operation method for grid-connected inverter parallel systemwith common DC linkSONG
作者:
 宋春伟12 郭永洪1 曾正2 孙丽宏1
 (1. 中国计量大学 现代科技学院,浙江 杭州 310027;2. 重庆大学 输配电装备及系统安全与新技术国家重点实验室,重庆 400044)
Author(s):
 Chun-wei12 GUO Yong-hong1 ZENG Zheng2 SUN Li-hong1
 (1. College of Modern Science and Technology,China Jiliang University,Hangzhou 310027,China;2. State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044,China)
关键词:
共直流母线 并联 并网逆变器 环流 死区
Keywords:
common DC link parallel grid-connected inverter circulating current dead time
分类号:
TM 464
DOI:
10.15938/j.emc.2017.12.002
文献标志码:
A
摘要:
为使共直流母线并网逆变器并联系统( GIPS) 实现理想无环流运行状态,各并联单元输出的脉宽调制电压波形需要保持一致,也就是各并联单元驱动信号需保持同步。借助并联系统各单元驱动信号的同步约束规律,可容易将被提出的 H 桥死区消除正弦脉宽调制应用于共直流母线GIPS,从而避免死区效应对并网电流的影响。由数字信号处理器与现场可编程门阵列结合的数字控制系统易于实现所提出的并联运行方式。实验结果验证了所提控制方法的运行特点与有效性,GIPS 基本能够实现无环流运行状态并且在整个运行阶段无需设置死区时间。
Abstract:
 Keeping no difference in the instantaneous output pulse width modulation ( PWM) voltages ofparallel inverters was the ideal operation status of a grid-connected inverter parallel system ( GIPS) to a-chieve no circulating current among parallel inverters. In other words,
the gate control signals for swit-ches in parallel inverters should be synchronized. By means of the uniform constraint of the gate controlsignals for switches,the H-bridge dead-time elimination sinusoidal pulse width modulation ( SPWM )presented can be easily applied to GIPS with common DC link. Thereby,the influence of the current bydead time can be avoided. The proposed operation method is easy to be implemented on the digital con-trol board using digital signal processing ( DSP) and field-programmable gate array ( FPGA) . The experi-mental results are presented to demonstrate the validity and features of the proposed operation method.GIPS can basically achieve no circulating current among parallel inverters,and the dead-time isn't neces-sary within the entire running time.

参考文献/References:

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备注/Memo

备注/Memo:
 收稿日期: 2015 - 07 - 21
基金项目: 浙江省自然科学基金青年基金项目( LQ16E070001) ; 浙江省“仪器科学与技术”重中之重学科开放基金( JL150512) ; 输配电装备及系统安全与新技术国家重点实验室访问学者项目( 2007DA10512716417)
作者简介: 宋春伟( 1987—) ,男,博士,讲师,研究方向为大容量变流器拓扑与控制;
郭永洪( 1967—) ,女,博士,副教授,研究方向为先进控制算法;
曾 正( 1986—) ,男,博士,讲师,研究方向为电力电子器件与新能源发电;
孙丽宏( 1977—) ,女,硕士,讲师,研究方向为微电网与能源互联网。
更新日期/Last Update: 2018-03-19