Abstract：The defects of traditional stand-alone photovoltaic power system were that which need complex energy management and plenty of switches. In order to overcome these problems, a novel stand-alone photovoltaic power system and its strategy of energy management is proposed in this paper. The system consists of a PV module, a battery, a boost converter, a bi-directional charge-discharge converter and a isolated inverter. It has the advantages of boost and maximum power point tracking of PV module, bi-directional charge-discharge of battery, and isolation. Through controlling the boost converter and the bi-directional converter and the inverter to operate in an appropriate state depending on the operation pattern of solar cell and battery. This strategy makes the system operation with high efficiency and stable state. Matlab simulation results show the effectiveness the proposed three-port inverter.
高志强, 纪延超, 谭光慧, 王建赜. 新型光伏三端口逆变器[J]. 电工技术学报, 2011, 26(1增): 113-117.
Gao Zhiqiang, Ji Yanchao, Tan Guanghui, Wang Jianze. A Novel Three-Port Inverter for Photovoltaic Power System. Transactions of China Electrotechnical Society, 2011, 26(1增): 113-117.
[1] Lim Y H, Hamill D C. Simple maximum power point tracker for photovoltaic arrays[J]. Electronics Letters, 2000, 36(11): 997-999. [2] 丁新平, 卢燕, 钱照明, 等. Z源逆变器光伏并网系统光伏电池MPPT和逆变器并网的单级控制[J]. 电工技术学报, 2010, 25(4): 122-128 Ding Xinping, Lu Yan, Qian Zhaoming, et al. Single-stage control of MPPT and grid-connected on Z-source inverter PV system [J]. Transactions of China Electrotechnical Society, 2010, 25(4): 122-128. [3] Yang Shuitao, Ding Xinping, Zhang Fan, et al. Study on Z-source inverter for photovoltaic generation system[J]. Proceedings of the Chiness Society for Electrical Engineering, 2008, 28(21): 112-118. [4] 廖志凌, 阮新波. 一种独立光伏发电系统双向变换器的控制策略[J].电工技术学报, 2008, 23(1): 69-71. [5] 刘邦银, 段善旭, 刘飞, 等. 基于改进扰动观察法的光伏阵列最大功率点跟踪[J]. 电工技术学报, 2009, 24(6): 91-94. [6] 栗秋华, 周林. 光伏并网发电系统最大功率跟踪新算法及其仿真[J]. 电力自动化设备, 2008, 8(7): 21-25. [7] 廖志凌, 阮新波. 独立光伏发电系统能量管理控制策略[J]. 中国电机工程学报, 2009, 29(21): 46-52. [8] Al Atrash H, Tian F, Batarseh I. Tri-modal half-bridge converter topology for three-port interface[J]. IEEE Transactions on Power Electronics, 2007, 22(1): 341-345. [9] Qian Zhijun, Batarseh Abdel Rahman. An integrated four-port DC-DC converter for renewable energy applications[J]. IEEE Transactions on Power Electronics, 2010, 25(7): 1877-1887. [10] Qian Zhijun, Batarseh Abdel Rahman. Modeling and control of three-port DC-DC converter interface for satellite applications [J]. IEEE Transactions on Power Electronics, 2010, 25(3): 637-645. [11] Gules R, De Pellegrin Pacheco J, Hey H L, et al. A maximum power point tracking system with parallel connection for PV stand-alone applications [J]. IEEE Transactions on Power Electronics, 2008, 55(7): 2674-2683.
2011, Vol. 26 
