刘斌;王蒙蒙;黄凯伦;徐敏;胡质良;

• 1:南昌航空大学信息工程学院

摘要(Abstract)：

相较于单L滤波器,LCL滤波器可在有效滤除高次谐波的同时减小滤波器的体积、降低滤波器的功率损耗。为解决LCL滤波器的谐振以及网侧电感电流畸变等问题,提出了在单电感型并网电流控制策略的基础上引入网侧(或逆变器侧)电感电流修正量的控制策略。因在引入电流修正量时,须在非反馈侧安装电流传感器,为避免添加电流传感器带来的成本问题,利用二维状态观测器估计网侧电感电流,在不增加设备成本基础上有效观测网侧电感电流。仿真和实验结果验证了所提策略的可行性。

关键词(KeyWords)： 三相并网逆变器;LCL滤波器;电流修正量;二维状态观测器

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(61463037)~~

作者(Author): 刘斌;王蒙蒙;黄凯伦;徐敏;胡质良;

Email:

DOI: 10.13335/j.1000-3673.pst.2016.02.032

参考文献(References)：

• [1]孙超,刘以建,郑野,等.三相并网逆变器LCL滤波器的简明设计[J].通讯电源技术,2012,29(2):47-50.Sun Chao,Liu Yijian,Zheng Ye,et al.A concise design of LCL filter for three-phase grid-connected inverter[J].Telecom Power Technology,2012,29(2):47-50(in Chinese).
• [2]张兴,张崇魏.PWM整流器及其控制[M].北京:机械工业出版社,2012:254-272.
• [3]张宪平,林资旭,李亚西,等.LCL滤波的PWM整流器新型控制策略[J].电工技术学报,2007,22(2):74-77.Zhang Xianping,Lin Zixu,Li Yaxi,et al.A novel control strategy for PWM rectifier with LCL filter[J].Transactions of China Electrotechnical Society,2007,22(2):74-77(in Chinese).
• [4]武健,徐殿国,何娜.并联有源滤波器输出LCL滤波器研究[J].电力自动化设备,2007,27(1):17-20.Wu Jian,Xu Dianguo,He Na.Research of output LCL filter of APF[J].Electric Power Automation Equipment,2007,27(1):17-20(in Chinese).
• [5]李志勇,沈玲非,徐保友,等.基于无谐波检测的LCL-APF直接功率控制[J].电网技术,2012,36(12):217-221.Li Zhiyong,Shen Lingfei,Xu Baoyou,et al.An LCL-APF direct power control approach basedon non-harmonic detection technology[J].Power System Technology,2012,36(12):217-221(in Chinese).
• [6]Wu W M,Sun Y J,Huang M.A robust passive damping method for LLCL-filter-based grid-tied inverters to minimize the effect of grid harmonic voltages[J].IEEE Transactions on Power Electionics,2014,29(7):3279-3289.
• [7]Berers R,Wang X F,Blaabjerg F.Comparative evaluation of passive damping topologies for parallel grid-connected converters with LCL filters[C]//Power Electronics Conference(IPEC-Hiroshima 2014-ECCE-ASIA).Hiroshima,Japan:Power Electronics Conference,2014:3320-3327.
• [8]李泽斌,罗安,田园.LCL型光伏并网逆变器电流内环控制方法[J].电网技术,2014,38(10):2772-2778.Li Zebin,Luo An,Tian Yuan.Inner current loop control method for photovol taic grid-connected inverter with LCL filter[J].Power System Technology,2014,38(10):2772-2778(in Chinese).
• [9]吴云亚,谢少军,阚加荣,等.逆变器侧电流反馈的LCL并网逆变器电网电压前馈控制策略[J].中国电机工程学报,2013,23(25):54-60.Wu Yunya,Xie Shaojun,Kan Jiarong,et al.A full grid voltage feed-forward controi strategy with inverter side current feedback for LCL grid-connected inverters[J].Proceedings of the CSEE,2013,23(25):54-60(in Chinese).
• [10]尹靖元,金新民,吴学智,等.基于带通滤波器的LCL型滤波器有源阻尼控制[J].电网技术,2013,8(8):188-194.Yin Jingyuan,Jin Xinmin,Wu Xuezhi,et al.Active damping control strategy for LCL filter based on band pass filter[J].Power System Technology,2013,8(8):188-194(in Chinese).
• [11]易映萍,芦开平,王林.基于LCL滤波器的光伏并网逆变器控制策略[J].电力自动化设备,2011,31(12):56-57Yi Yingping,Lu Kaiping,Wang Lin.Control strategy of PV grid inverters based on LCL filter[J].Electric Power Automation Equipment,2011,31(12):56-57(in Chinese).
• [12]徐德鸿.电力电子系统建模及控制[M].北京:机械工业出版社,2011:113-146.
• [13]魏学良,戴珂,方昕,等.三相并联型有源电力滤波器补偿电流性能分析与改进[J].中国电机工程学报,2007,27(28):113-119.Wei Xueliang,Dai Ke,Fang Xin,et al.Performance analysis and improvement of output for three phase shunt active power filter[J].Proceedings of the CSEE,2007,27(28):113-119(in Chinese).
• [14]汤赐.基于LCL输出滤波器的并网逆变器四种PI控制器设计方法[J].电网技术,2013,37(11):3268-3275.Tang Ci.Four design methods for proportional-integral controller of grid-connected inverter with LCL output filte[J].Power System Technology,2013,37(11):3268-3275(in Chinese).
• [15]刘斌,伍家驹,孙宏宇.基于平衡点的逆变控制及电感电流低维估计[J].电力电子技术,2011,45(5):22-24.Liu Bin,Wu Jiaju,Sun Hongyu.An inverter controller based on equilibrium point and its low-dimesional inductor estimation[J].Power Electmnics,2011,45(5):22-24(in Chinese).
• [16]刘豹,唐万生.现代控制理论[M].北京:机械工业出版社,2011:210-226.
• [17]孔雪娟.数字控制PWM逆变电源关键技术研究[D].武汉:华中科技大学,2005.
• [18]Yeps A G,Freijedo F D,Doval-Gandoy J,et al.Effects of discretization methods on the performance of resonant controllers[J].IEEE Transctions on Power Electronics,2010,25(7):1692-1712.