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| The Control Method of a Distributed PV Energy Storage Off-line Inverter in Parallel with Grid and its Application |
| Sun Yuhong1, Yan Lei2 |
1. Shanghai Surpass Sun Electric Co., Ltd, Shanghai 200331;
2. Shandong Survey and Design Institute of Water Conservancy, Ji'nan 250014; |
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Abstract The paper proposes a novel control strategy for distributed energy storage off-line inverter. When the grid is normal, the inverter with the proposed control method can work in parallel with the grid and most load power consumption can be supplied by the grid. When the grid is abnormal, the inverter works in off-line mode quickly in order to supply power to important load uninterruptly. In the other hand, a BUCK-BOOST circuit with power double flow topology is used, therefore, small capacity power battery can satisfy the application in distributed energy storage system. Accordingly the cost of system hardware can be decreased, and the using efficiency of the energy storage battery can be increased. By way of adjusting the amplitude and phase of the output voltage and making the output current phase of the inverter deviate the given angle with the utility current, the electric energy of storage battery not only can be saved, the high power factor can be also be achieved for utility supply source.
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Published: 22 January 2018
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| Cite this article: |
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Sun Yuhong,Yan Lei. The Control Method of a Distributed PV Energy Storage Off-line Inverter in Parallel with Grid and its Application[J]. Electrical Engineering, 2017, 18(12): 157-162.
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| URL: |
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https://dqjs.cesmedia.cn/EN/Y2017/V18/I12/157
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[1] 张国宝. 储能影响未来能源大格局[J]. 中国电力企业管理, 2015(3): 12-15.
[2] 中国化学与物理电源行业协会储能应用分会. 中国储能产业研究报告(2016年)[Z]. 2016.
[3] 黄松柏. 分布式发电系统中的储能逆变器技术研究[J]. 电力电子技术, 2014, 48(11): 48-50.
[4] 胡兵, 张彦虎, 薛丽英, 等. 光伏储能逆变器系统结构研究[J]. 低压电器, 2014(10): 67-71.
[5] 陈建建, 赵彩虹, 高星辰, 等. 配电网中分布式电源的优化配置研究[J]. 电气技术, 2016, 17(5): 36-40, 44.
[6] 翁桂萍, 潘夏, 邵振国. 计及峰谷电价和启发式运行策略的风光储联合发电用户容量优化[J]. 电气技术, 2016, 17(5): 1-6.
[7] 周乐明, 罗安, 陈燕东, 等. 单相LCL型并网逆变器功率控制及有源阻尼优化方法[J]. 电工技术学报, 2016, 31(6): 144-154.
[8] 邬明亮, 戴朝华, 邓惠文, 等. 基于单体光伏/单体储能电池模组的新型光伏储能发电系统[J]. 电力系统保护与控制, 2017, 45(3): 56-61.
[9] 陈章勇, 许建平, 吴建雪, 等. 基于LC吸收电路的耦合电感倍压单元高升压增益Boost变换器[J]. 电工技术学报, 2016, 31(2): 78-85, 101.
[10] Ho W J, Lio J B, Feng W S. A line-interactive UPS structure with built-in vector-controlled charger and PFC[C]//International Conference on Power Elec- tronics and Drive Systems, IEEE, 1997: 127-132.
[11] 崔杨, 刘文, 唐耀华, 等. 改善光伏高渗透率配电网电压水平的储能电池最优容量配置方法[J]. 太阳能学报, 2017, 38(5): 1157-1165. |
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2017, Vol. 18 
