1.School of Electrical Engineering Shenyang University of Technology Shenyang 110870 China 2.College of Electrical and Information Engineering Liaoning Institute of Since and Technology Benxi 117004 China 3.Key Laboratory of Advanced Electrical Engineering and Energy Technology Tianjin Polytechnic University Tianjin 300387 China
Abstract：Dynamic analysis model of the photovoltaic-grid complementary system is established in this paper.Maximum power point tracking method based on variable step without input-voltage detection and control strategy based on reverse blocking diode control DC bus entrance are proposed.Comparing with the disturbance observation method,the effectiveness of the maximum power point tracking method proposed by this paper is proved.Simulation results of the photovoltaic-grid complementary system verifiy the effectiveness of the model.The fluctuation characteristic of the load current and voltage are tested.Experimental results further show that power supply switch from photovoltaic to grid automatically when solar radiation reduces.In the process of the power switch,distortion rate of the load voltage and current is small and system running smoothly.Realizing the purpose of using photovoltaic generation in real time and in place to dissolve.
[1] Li C H,Hsieh W L,Chen C S.Optimization of photovoltaic penetration in distribution systems considering annual duration curve of solar irradiation[J].IEEE Transactions on Power Systems,2012,27(2):1090-1097. [2] 茆美琴,周松林,苏建徽.基于风光联合概率分布的微电网概率潮流预测[J].电工技术学报,2014,29(2):55-63. Mao Meiqin,Zhou Songlin,Su Jianhui.Probabilistic power flow forecasting of microgrid based on joint probability distribution about wind and irradiance[J].Transactions of China Electrotechnical Society,2014,29(2):55-63. [3] Boemer J C,Gibescu M,Kling W L.Dynamic models for transient stability analysis of transmission and distribution systems with distributed generation:an overview[C]//Proceedings of the IEEE Power Technology Conference,Bucharest,Romania,2009:1-8. [4] 刘兴杰,郭栋,王凯龙.基于电气外特性的光伏发电系统模型等效方法[J].电工技术学报,2014,29(10):231-238. Liu Xingjie,Guo Dong,Wang Kailong.Equivalent modeling method for PV system based on its electric external characteristics[J].Transactions of China Electrotechnical Society,2014,29(10):231-238. [5] 陈云锋,丁宁.光伏电站接入区域电网的影响分析[J].电气技术,2013,14(2):54-57. Chen Yunfeng,Ding Ning.Analysis of the influences of photovoltaic plant integration in regional grid[J].Electrical Engineering,2013,14(2):54-57. [6] Hu B,Nonaka Y,Yokoyama R.Influence of large-scale grid-connected photovoltaic system on distribution networks[J].Automation of Electric Power Systems,2012,36(3):34-38. [7] 赵书强,王明雨,胡永强,等.基于不确定理论的光伏出力预测研究[J].电工技术学报,2015,30(16):213-220. Zhao Shuqiang,Wang Mingyu,Hu Yongqiang,et al.Research on the prediction of PV output based on uncertainty theory[J].Transactions of China Electrotechnical Society,2015,30(16):213-220. [8] 周林,任伟,廖波,等.并网型光伏电站无功电压控制[J].电工技术学报,2015,30(20):168-175. Zhou Lin,Ren Wei,Liao Bo,et al.Reactive power and voltage control for grid-connected PV power plants[J].Transactions of China Electrotechnical Society,2015,30(20):168-175. [9] 陈权,李令冬,王群京,等.光伏发电并网系统的仿真建模及对配电网电压稳定性影响[J].电工技术学报,2013,28(3):241-247. Chen Quan,Li Lingdong,Wang Qunjing,et al.Simulation model of photovoltaic generation grid-connected system and its impacts on voltage stability in distribution grid[J].Transactions of China Electrotechnical Society,2013,28(3):241-247. [10]白俊良,梅华威.改进相似度的模糊聚类算法在光伏阵列短期功率预测中的应用[J].电力系统保护与控制,2014,42(6):84-90. Bai Junliang,Mei Huawei.Improved similarity based fuzzy clustering algorithm and its application in the PV array power short-term forecasting[J].Power System Protection and Control,2014,42(6):84-90. [11]闫凯,张保会,瞿继平,等.光伏发电系统暂态建模与等值[J].电力系统保护与控制,2015,43(1):1-8. Yan Kai,Zhang Baohui,Zhai Jiping,et al.Photovoltaic power system transient modeling and equivalents[J].Power System Protection and Control,2015,43(1):1-8. [12]丁明,王伟胜,王秀丽,等.大规模光伏发电对电力系统影响综述[J].中国电机工程学报,2014,34(1):1-14. Ding Ming,Wang Weisheng,Wang Xiuli,et al.A review on the effect of large-scale PV generation on power systems[J].Proceedings of the CSEE,2014,34(1):1-14. [13]Debnath D,Chatterjee K.Two-stage solar photovoltaic based stand-alone scheme having battery as energy storage element for rural deployment[J].IEEE Transactions on Industrial Electronics,2015,62(7):4148-4157. [14]Xin Huanhai,Liu Yun,Wang Zhen,et al.A new frequency regulation strategy for photovoltaic systems without energy storage[J].IEEE Transactions on Sustainable Energy,2013,4(4):985-993. [15]蔡国伟,孔令国,潘超,等.风光储联合发电系统的建模及并网控制策略[J].电工技术学报,2013,28(9):196-204. Cai Guowei,Kong Lingguo,Pan Chao,et al.System modeling of wind-PV-ES hybrid power system and its control strategy for grid-connected[J].Transactions of China Electrotechnical Society,2013,28(9):196-204. [16]崔映红,杨勇平,张明智.太阳能—煤炭互补的发电系统与互补方式[J].中国电机工程学报,2008,28(5):102-107. Cui Yinghong,Yang Yongping,Zhang Mingzhi.Solar-coal complementary electric generation system and its modes[J].Proceedings of the CSEE,2008,28(5):102-107. [17]Bialasiewicz J T.Renewable energy systems with photovoltaic power generators:operation and modeling[J].IEEE Transactions on Industrial Electronics,2008,55(7):2752-2758. [18]张艳霞,赵杰,邓中原.太阳能光伏发电并网系统的建模和仿真[J].高电压技术,2010,36(12):3097-3102. Zhang Yanxia,Zhao Jie,Deng Zhongyuan.Modeling and simulation of photovoltaie grid connected power system[J].High Voltage Engineering,2010,36(12):3097-3102. [19]杨永恒,周克亮.光伏电池建模及MPPT控制策略[J].电工技术学报,2011,26(增刊1):229-234. Yang Yongheng,Zhou Keliang.Photovoltaic cell modeling and MPPT control strategies[J].Transactions of China Electrotechnical Society,2011,26(S1):229-234. [20]王久和,慕小斌,张百乐,等.光伏并网逆变器最大功率传输控制研究[J].电工技术学报,2014,29(6):49-56. Wang Jiuhe,Mu Xiaobin,Zhang Baile,et al.Research on maximum power transfer control of photovoltaic grid-connected inverters[J].Transactions of China Electrotechnical Society,2014,29(6):49-56. [21]Brito M A G,Galotto L,Sampaio L P,et al.Evaluation of the main MPPT techniques for photovoltaic applications[J].IEEE Transactions on Industrial Electronics,2013,60(3):1156-1167. [22]朱拓斐,陈国定.光伏发电中MPPT控制方法综述[J].电源技术,2011,35(10):1322-1328. Zhu Tuofei,Chen Guoding.Survey of MPPT for photovoltaic power generation[J].Chinese Journal of Power Sources,2011,35(10):1322-1328. [23]Esram T,Patrick L.Comparison of photovoltaic array maximum power point tracking techniques[J].IEEE Transactions on Energy Conversion,2007,22(2):439-449. [24]杭凤海,杨伟,朱文艳.光伏系统MPPT 的扰动观测法分析与改进[J].电力系统保护与控制,2014,42(9):110-114. Hang Fenghai,Yang Wei,Zhu Wenyan.Analysis and improvement of MPPT disturbance observer method for PV system[J].Power System Protection and Control,2014,42(9):110-114.
2017, Vol. 32 
