|本期目录/Table of Contents|

[1]邓翔,胡雪峰,龚春英,等.LCL滤波并网逆变电源的控制策略研究[J].电机与控制学报,2011,(05):37-41.
 DENG Xiang,HU Xue-feng,GONG Chun-ying,et al.Study on control scheme for grid-connected inverter with LCL filter[J].,2011,(05):37-41.
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LCL滤波并网逆变电源的控制策略研究(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
期数:
2011年05
页码:
37-41
栏目:
出版日期:
2011-06-30

文章信息/Info

Title:
Study on control scheme for grid-connected inverter with LCL filter
作者:
邓翔; 胡雪峰; 龚春英;
南京航空航天大学自动化学院; 安徽工业大学电力电子与运动控制省重点实验室;
Author(s):
DENG Xiang1; HU Xue-feng1; 2; GONG Chun-ying1
1.College of Automation Engineering; Nanjing University of Aeronautics & Astronautics; Nanjing 210016; China; 2.Key Laboratory of Power Electronics and Motion Control of Anhui; Anhui University of Technology; Ma’anshan 243002; China
关键词:
并网逆变器 LCL滤波器 控制策略 系统建模 稳定性
Keywords:
grid-inverter LCL filter control scheme system modeling stability
分类号:
TM464
DOI:
-
文献标志码:
A
摘要:
针对LCL滤波的并网逆变电源采用直接并网电流单闭环控制时,存在系统稳定性和控制精确度等问题,提出一种控制策略。控制方案采用电网侧直接入网电流有效值作为外环反馈值,桥臂侧电感电流的瞬时值作为内环反馈值的双闭环控制策略,对该方案进行系统建模并结合劳思-赫尔维茨稳定判据验证控制系统的稳定性,给出该控制策略的理论依据和实现方法。在一台以DSP为核心控制器件的1kVA光伏电池并网逆变电源装置上进行实验验证。实验结果表明,该控制策略既保证了系统的稳定性,又提高了入网电流的直接控制精确度,能同时实现并网逆变电源的高精确度并网电流稳态输出波形和快速动态响应性能。
Abstract:
Only single grid current closed loop is not sufficient for the stability of the grid-inverter with LCL filter.This paper proposed a dual-loop control strategy with grid current root-mean-square(RMS) and leg output current,where grid current RMS is out feedback loop,and leg output current is inner feedback loop.It verified the stability of system by using Routh-Hurwitz criterion,and system modeling and stability analysis were also presented.The proposed control scheme was verified by simulation results and e...

参考文献/References:

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备注/Memo

备注/Memo:
国家重点基础研究发展计划(973计划)资助项目(2007CB210303)
更新日期/Last Update: 2011-11-09