|本期目录/Table of Contents|

[1]阳同光.电网不平衡情况下基于神经网络并网逆变器同步技术研究[J].电机与控制学报,2017,21(06):66-74.[doi:10.15938/j.emc.2017.06.009]
 YANG Tong-guang.Research on grid synchronization of grid-connected inverter based on neural network under unbalanced voltage conditions [J].,2017,21(06):66-74.[doi:10.15938/j.emc.2017.06.009]
点击复制

电网不平衡情况下基于神经网络并网逆变器同步技术研究(PDF)
分享到:

《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
21
期数:
2017年06
页码:
66-74
栏目:
出版日期:
2017-06-01

文章信息/Info

Title:
Research on grid synchronization of grid-connected inverter based on neural network under unbalanced voltage conditions
作者:
阳同光
?( 湖南城市学院机械与电气工程学院,湖南益阳413000)
Author(s):
?YANG Tong-guang
?( College of Mechanic and Electrical Engineering,Hunan City University,Yiyang 413000,China)
关键词:
电网不平衡 并网逆变器 神经网络 同步 鲁棒性
Keywords:
grid voltage unbalance grid-connected inverter neural network synchronization robust
分类号:
TM 315
DOI:
10.15938/j.emc.2017.06.009
文献标志码:
A
摘要:
为解决常规锁相环技术在电网电压不平衡情况下难以对电网电压频率和相位进行有效检测的问题,提出一种电网不平衡情况下基于神经网络的并网逆变器同步算法。首先,在两相静止坐标系下推导电网电压状态方程,并基于此建立神经网络; 然后,利用网络输出电压矢量和实际电压
矢量误差进行在线调整权值,并利用权值调整计算在线辨识电网电压频率、相位和幅值,从而可以构建电网电压的正负序分量。仿真和实验结果表明: 该方法能在电网不平衡情况下快速有效在线自适应辨识电网电压频率和相位,提取电网电压正负序分量,具有较强的鲁棒性。
Abstract:
To solve the problem of conventional phase locked loop technique under the condition of unbalanced power grid voltage,a grid inverter synchronous technology based on neural network under unbalanced power grid case is developed. At first,grid voltage state equation was derived in the two-phase stationary coordinates,and a neural network was built based on the state equation; the biases of output voltage vector and the actual voltage vector were used to adjust the neural network weight online,and thus to find out the amplitude,frequency and the phase of the grid voltage,which can construct the positive and negative components of grid voltage. Simulation and experimental results show that the method can be online adaptive to identify the frequency and the phase of grid voltage quickly and efficiently in the case of unbalanced power grid,detect the positive and negative sequences of grid voltage,and has strong robustness.

参考文献/References:

-

相似文献/References:

[1]胡雪峰,龚春英,陈新,等.采用垂直多载波调制技术的并网逆变器[J].电机与控制学报,2011,(07):60.
 HU Xue-feng,GONG Chun-ying,CHEN Xin.A grid-connected inverter based on vertical layered multi-carrier modulation strategy[J].,2011,(06):60.
[2]王萍,蔡蒙蒙,王尉. 基于自适应陷波滤波器的有源阻尼控制方法 [J].电机与控制学报,2015,19(09):108.[doi:10. 15938 /j. emc. 2015. 09. 016]
 WANG Ping,CAI Meng-meng,WANG Wei. Adaptive notch filter based active damping control method [J].,2015,19(06):108.[doi:10. 15938 /j. emc. 2015. 09. 016]
[3]阳同光,文明才.光伏并网逆变器布谷鸟搜索优化反推控制[J].电机与控制学报,2016,20(08):105.[doi:10. 15938 / j. emc. 2016. 08. 014]
 YANG Tong-guang,WEN Ming-cai.Cuckoo search optimization backstepping control of photovoltaic system grid-connected inverter [J].,2016,20(06):105.[doi:10. 15938 / j. emc. 2016. 08. 014]
[4]杨明,周林,杜潇,等.大型光伏电站并网逆变器无功与电压控制策略[J].电机与控制学报,2016,20(10):70.[doi:10. 15938 /j. emc. 2016. 10. 010]
 YANG Ming,ZHOU Lin,DU Xiao,et al.Reactive power and voltage control in the large photovoltaic power plants [J].,2016,20(06):70.[doi:10. 15938 /j. emc. 2016. 10. 010]
[5]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.[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(06):9.[doi:10.15938/j.emc.2017.12.002]
[6]甘世红,毕思明,顾伟,等.改进式Z 源轴带发电机并网逆变器[J].电机与控制学报,2018,22(12):68.[doi:10.15938/j. emc.2018.12.009]
 GAN Shi-hong,BI Si-ming,GU Wei,et al.Improved Z-source grid-connected inverter of ship shaft generator [J].,2018,22(06):68.[doi:10.15938/j. emc.2018.12.009]
[7]宋绍剑,刘延扬,刘斌,等.基于阻抗的电动汽车并网逆变器的稳定性分析[J].电机与控制学报,2019,23(04):111.[doi:10.15938/j.emc.2019.04.014]
 SONG Shao-jian,LIU Yan-yang,LIU Bin,et al. Impedance-based stability analysis of grid-connected inverter for electric vehicle[J].,2019,23(06):111.[doi:10.15938/j.emc.2019.04.014]

备注/Memo

备注/Memo:
收稿日期: 2016 - 04 - 20
基金项目: 国家自然科学基金重点资助项目( 51037004) ; 湖南省自然科学基金( 2017JJ2022) ; 湖南省教育厅科学研究重点项目( 17A036)
作者简介: 阳同光( 1974—) ,男,博士,副教授,研究方向为智能控制、故障诊断。
更新日期/Last Update: 2017-08-24