1. Nanjing University of Aeronautics & Astronautics Nanjing 210016 China 2. Jiangsu University Zhenjiang 212013 China 3. Huazhong University of Science & Technology Wuhan 430074 China
Abstract：Photovoltaic generation, which is an important application way of solar, is attracting more and more attention. However, its output power is intermittent with different environment. A backup power source is necessary. Grid is chosen to be the backup power source in this paper, and a hybrid photovoltaic/Grid power system is proposed. It is composed of solar cells, grid, a DC-DC converter, and a power factor correction. In order to enable these two source work coordinate, it is necessary to manage the power. The key point of power management is to control the system to work in proper mode, according to different situation of solar cell and load. A 2kW hybrid system is built in the lab. The experimental results verified the proposed power structure and energy management.
[1] W Xiao, N Ozog, W G Dunford. Topology study of photovoltaic interface for maximum power point tracking[J]. IEEE Transactions on Industrial Electronics, 2007, 54(3): 1696-1704. [2] T Esram, Kimball J W, P T Krein, et al. Dynamic maximum power point tracking of photovoltaic arrays using ripple correlation control[J]. IEEE Transactions on Power Electronics, 2006, 21(5): 1282-1291. [3] Pacheco V A, Freitas L C, Vieira J B, et al. Stand-alone photovoltaic energy storage system with maximum power point tracking[C]. Proceedings of IEEE Applied Power Electronics Conference and Exposition, 2003: 97-102. [4] Park J H, Ahn J Y, Cho B H, et al. Dual-module-based maximum power point tracking control of photovoltaic system[J]. IEEE Transactions Industrial Electronics, 2006, 53(4): 1036-1047. [5] Koizumi H, Kurokawa K. A novel maximum power point tracking method for PV module integrated converter[C]. Procceedings of IEEE Power Electronics Specialists Conference, 2005: 2081-2086. [6] 金科, 阮新波. 复合式燃料电池供电系统[J]. 电工技术学报, 2008, 23(3): 92-98. Jin Ke, Ruan Xinbo. Hybrid fuel cell power system[J]. Transactions of China Electro-technical Society, 2008, 23(3): 92-98. [7] Kobayashi K, Matsuo H, Sekine Y. Novel solar cell power supply system using the multiple-input DC-DC converter[J]. IEEE Transactions on Industrial Electronics, 2006, 53(1): 281-286. [8] 金科, 杨孟雄, 阮新波. 三电平双向变换器[J]. 中国电机工程学报, 2006, 26(18): 41-46. Jin Ke, Yang Mengxiong, Ruan Xinbo. Three-level bidirectional DC-DC converter[J]. Proceedings of the CSEE, 2006, 26(18): 41-46. [9] 吴理博, 赵争鸣. 独立光伏照明系统中的能量管理控制[J]. 中国电机工程学报, 2005, 25(22): 68-72. Wu Libo, Zhao Zhengming. A novel energy management and control for stamd-alone photovoltaic lighting system[J]. Proceedings of the CSEE, 2005, 25(22): 68-72. [10] 陈昌松, 段善旭. 基于发电预测的分布式发电能量管理系统[J]. 电工技术学报, 2010, 25(3): 150-156. Chen Changsong, Duan Shanxu. Energy management system of distributed generation based on power forecasting[J]. Transactions of China Electro-technical Society, 2010, 25(3): 150-156. [11] Jiang Z H. Power management of hybrid photovoltaic- fuel cell power systems[C]. IEEE Power & Energy Society General Meeting, 2006: 1-6. [12] 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. Liao Zhiling, Ruan Xinbo. A novel energy management and control for stamd-alone photovoltaic system[J]. Proceedings of the CSEE, 2009, 29(21): 46-52. [13] 吴理博, 赵争鸣. 单级式光伏并网逆变系统中的最大功率点跟踪算法稳定性研究[J]. 中国电机工程学报, 2006, 26(6): 73-77. Wu Libo, Zhao Zhengming. Research on the stability of MPPT strategy applied in single-stage grid- connected photovoltaic system[J]. Proceedings of the CSEE, 2006, 26(6): 73-77. [14] 戴欣平, 马广, 杨晓红. 太阳能发电变频器驱动系统的最大功率追踪控制法[J]. 中国电机工程学报, 2005, 25(8): 95-99. Dai Xinping, Ma guang, Yang Xiaohong. A control method for maximum power tracing of photovoltaic generation system[J]. Proceeding of the CSEE, 2005, 25(8): 95-99. [15] 陈仲, 张鑫. 一种基于变压器串联和新型辅助网络的ZVS移相全桥变换器[J]. 电工技术学报, 2009. 24(12): 95-101. Chen Zhong, Zhang Xin. A ZVS phase-shifted full-bridge converter with series-connection of transformer and auxiliary network[J]. Transactions of China Electrotechnical Society, 2009, 24(12): 95-101. [16] 陈武, 阮新波. 复合式全桥三电平变换器的软开关技术研究[D]. 南京: 南京航空航天大学, 2006.
2012, Vol. 27 
