Abstract：In this paper,several control strategies of the non-isolated interleaved parallel full-bridge controllable current source inverter with a common DC are analyzed and compared with each other.Analysis of the harmonic structure of the inductor current under the control of carrier-based interleaved unipolar frequency-doubling SPWM is carried out.Thus the maximum ripple of a single inductor current within the converter is figured out in the interleaved condition according to the operating mode,and then compared with that in the synchronized condition.This provides a guideline for the design of the inductor.The simulation and experiment are carried out to verify the correctness of the analysis.
[1] Abusara M A,Sharkh S M.Design and control of a grid-connected interleaved inverter[J].IEEE Transactions on Power Electronics,2013,28(2):748-764. [2] 洪峰,万运强,赵鑫,等.一种交错并联型三电平双降压式全桥光伏并网逆变器[J].中国电机工程学报,2014,34(21):3397-3404. Hong Feng,Wan Yunqiang,Zhao Xin,et al.A novel interleaved dual-buck full-bridge three-level photovoltaic grid inverter[J].Proceedings of the CSEE,2014,34(21):3397-3404. [3] 单任仲,沈沉,陈来军,等.全数字滞环电流控制可控电流源研究[J].电网技术,2012,36(12):113-118. Shan Renzhong,Shen Chen,Chen Laijun,et al.Research on full-digital hysteresis current controlled controllable current source[J].Power System Technology,2012,36(12):113-118. [4] 程荣仓,刘正之.大容量单相逆变装置并联技术的分析[J].中国电机工程学报,2004,24(7):112-116. Cheng Rongcang,Liu Zhengzhi.Analysis of parallel single-phase inverters of large capacity[J].Proceedings of the CSEE,2004,24(7):112-116. [5] 姚刚,沈燕群,李武华,等.一种新型的有源交错并联Boost 软开关电路[J].中国电机工程学报,2005,25(10):65-69. Yao Gang,Shen Yanqun,Li Wuhua,et al.A new soft switching circuit for the interleaved Boost converters[J].Proceedings of the CSEE,2005,25(10):65-69. [6] 陈轶涵,韦徵,王赟程,等.交错并联移相全桥全负载状态静态特性研究与优化设计[J].电工技术学报,2014,29(10):49-56. Chen Yihan,Wei Zheng,Wang Yuncheng,et al.Interleaving paralleled phase shift full bridge converter full load range static characteristics research and optimal design[J].Transactions of China Electrotechnical Society,2014,29(10):49-56. [7] 杨玉岗,祁鳞,吴建鸿.三相交错并联磁集成Boost变换器的内部本质安全特性[J].电工技术学报,2014,29(4):54-62. Yang Yugang,Qi Lin,Wu Jianhong.Analysis of inner-intrinsic safety for three-phase interleaving magnetic integrated Boost converter[J].Transactions of China Electrotechnical Society,2014,29(4):54-62. [8] 杨玉岗,邹雨霏,代少杰,等.DCM 模式下交错并联磁集成双向DC/DC变换器的稳态性能分析[J].电工技术学报,2015,30(11):60-70. Yang Yugang,Zou Yufei,Dai Shaojie,et al.Steady state performance analysis of the interleaving and magnetically integrated bidirectional DC/DC converter under DCM mode[J].Transactions of China Electrotechnical Society,2015,30 (11):60-70. [9] 徐玉琴,马焕均.基于改进下垂控制的逆变器并联运行技术[J].电力系统保护与控制,2015,43(7):103-107. Xu Yuqin,Ma Huanjun.Parallel operation technology of inverters based on improved droop control[J].Power System Protection and Control,2015,43(7):103-107. [10]李浩然,杨旭红,冯成臣.多逆变器并联下的输出阻抗分析和改进下垂控制策略研究[J].电力系统保护与控制,2015,43(20):29-35. Li Haoran,Yang Xuhong,Feng Chengchen.Control strategy research of output impedance analysis and improved droop control based on multiple-inverters parallel[J].Power System Protection and Control,2015,43(20):29-35. [11]李依璘,王明渝,梁慧慧,等.基于分布式控制的不同容量逆变器并联技术研究[J].电力系统保护与控制,2014,42(6):123-128. Li Yilin,Wang Mingyu,Liang Huihui,et al.Study on distribution controlled inverter parallel system with different power ratings[J].Power System Protection and Control,2014,42(6):123-128. [12]Ramos R,Biel D,Fossas E,et al.Interleaving quasi-sliding-mode control of parallel-connected buck-based inverters[J].IEEE Transactions on Industrial Electronics,2008,55(11):3865- 3873. [13]陈道炼,张蓉,王建华,等.并联高频脉冲直流环节逆变器研究[J].电工技术学报,2006,21(1):98-103. Chen Daolian,Zhang Rong,Wang Jianhua,et al.Parallel inverters with high frequency pulse DC link[J].Transactions of China Electrotechnical Society,2006,21(1):98-103. [14]张犁,孙凯,冯兰兰,等.非隔离全桥并网逆变器并联运行系统[J].电工技术学报,2012,27(8):41-55. Zhang Li,Sun Kai,Feng Lanlan,et al.Parallel operation of non-isolated full bridge inverters in grid-connected system[J].Transactions of China Electrotechnical Society,2012,27(8):41-55. [15]王雪钰,陈轶涵,邓翔,等.高功率密度1 kVA航空静止变流器[J].南京航空航天大学学报,2014,46(1):137-143. Wang Xueyu,Chen Yihan,Deng Xiang,et al.1 kVA aeronautical static inverter with high power density[J].Journal of Nanjing University of Aeronautics and Astronautics,2014,46(1):137-143. [16]陈东,张军明,钱照明.带LCL滤波器的并网逆变器单电流反馈控制策略[J].中国电机工程学报,2013,33(9):10-16. Chen Dong,Zhang Junming,Qian Zhaoming.Single current feedback control strategy for grid-connected inverters with LCL filters[J].Proceedings of the CSEE,2013,33(9):10-16. [17]Kukrer O,Komurcugil H.Control strategy for singlephase UPS inverters[J].IEEE Proceedings of Electric Power Applications,2003,150(6):743-746. [18]Kjaer S B,Pederson J K,Blaabjerg F.A review of single-phase grid-connected inverters for photovoltaic modules[J].IEEE Transactions on Industry Applications,2005,41(5):1292-1306.
2017, Vol. 32 
