Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 往年索引

基于改进的单神经元三相并网逆变器控制策略研究

来源:电工电气发布时间:2016-12-19 09:19 浏览次数:8
基于改进的单神经元三相并网逆变器控制策略研究
 
满灿
(南京理工大学,江苏 南京 210094)
 
    摘 要:为改善LCL型三相并网逆变器控制器无法根据外界条件校正参数的缺点,提出了一种基于改进的单神经元三相并网逆变器控制策略。该控制策略基于并网电流、电容电流反馈的双电流环控制策略,将并网电流外环用单神经元PI自适应控制器代替,根据有监督的Hebb学习规则对自身权值系数进行更新,利用辨识器校正PI参数,实现系统动态调节KPKI值,仿真结果表明,该控制策略增强了系统鲁棒性、稳定性。
    关键词:LCL 型滤波器;单神经元;自适应控制
    中图分类号:TM464     文献标识码:A     文章编号:1007-3175(2016)12-0023-04
 
Research on Control Strategy of Three-Phase Grid Connected
Inverter Based on Improved Single Neuron

MAN Can
(Nanjing University of Science and Technology, Nanjing 210094, China)
 
    Abstract: In order to improve the disadvantage that the LCL type of three-phase grid connected inverter isn’t able to revise the parameters according to the external conditions, this paper proposed a new control strategy based on an improved single neuron three-phase grid connected inverter. The grid connected current outer ring was replaced by the single neuron proportion integration (PI) self-adaptive controller. According to the supervised Hebb learning rule, one's own weight coefficients were updated. The identifier was used to revise the PI parameters, so as to dynamically adjust the KP and KI values. The simulation results show that this control strategy enhances the robustness and stability of the system.
    Key words: LCL type filter; single neuron; self-adaptive control
 
参考文献
[1] 由世俊,娄承芝,华君,等. 建筑物用光伏集成系统在中国应用的前景[J]. 太阳能学报,2000,21(4):434-438.
[2] 曾正,赵荣祥,汤胜清,等. 可再生能源分散接入用先进并网逆变器研究综述[J]. 中国电机工程学报,2013,33(24):1-12.
[3] 郑昕昕,肖岚,王长宝,等. 三相变流器LCL滤波器参数优化新方法[J]. 中国电机工程学报,2013,33(12):55-63.
[4] MALINOWSKI M,BERNET S.A simple voltage sensorless active damping strategy for threephase PWM converters with an LCL filter[J]. IEEE Transactions on Industry Electronics,2008,55(4):1876-1880.
[5] 徐志英,许爱国,谢少军. 采用LCL滤波器的并网逆变器双闭环入网电流控制技术[J]. 中国电机工程学报,2009,29(27):36-41.
[6] 刘飞,查晓明,段善旭. 三相并网逆变器LCL滤波器的参数设计与研究[J]. 电工技术学报,2010,25(3):110-116.