Research on the active control technology of grid voltage based on a distributed photovoltaic/flywheel energy storage combined generation system

被引：0
作者：
Yu H. [1 ]
Li G. [1 ,2 ]
Yang B. [1 ]
Zhu S. [1 ]
机构：
[1] China Electric Power Research Institute Company Ltd., Nanjing
[2] Jiangsu Engineering Technology Research Center for Energy Storage Conversion and Application, Nanjing
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2021年 / 49卷 / 03期
关键词：
Distributed photovoltaic; Flywheel energy storage; Power factor optimization; Voltage active support; Voltage deviation;
D O I：
10.19783/j.cnki.pspc.200398
中图分类号：
学科分类号：
摘要：
In order to improve the power quality at the end of a distribution network and enhance the voltage stability of the parallel grid, this paper proposes an active voltage support control strategy based on a distributed photovoltaic/ flywheel energy storage combined generation system. Compared with the traditional voltage regulation control method, the control strategy can give full play to the high frequency charging and discharging characteristics of flywheel energy storage, adjust the active/reactive power output of the combined generation system adaptively according to the magnitude of voltage deviation, and stabilize the grid point voltage. At the same time, the control strategy takes the power factor of the grid point as a consideration, and introduces a control algorithm, which can be used in the same power control. The power factor of the parallel dot is optimized. In order to verify the feasibility of the proposed control strategy, a set of experimental test platforms including 50 kW photovoltaic and 100 kW flywheel energy storage is built. The experimental results show that the distributed photovoltaic/flywheel energy storage system can automatically adjust the active/reactive power output according to the voltage fluctuation, and improve the power quality of parallel outlets. © 2021, Power System Protection and Control Press. All right reserved.
引用
收藏
页码：48 / 56
页数：8
相关论文
共 26 条
  • [1] SUI Xingjia, XIAO Yong, ZHENG Kaihong, Et al., Coordinative operation and capacity allocation of photovoltaic-storage and DSTATCOM systems, Power Capacitor & Reactive Power Compensation, 38, 6, pp. 150-157, (2017)
  • [2] REN Luoqing, BAI Zeyang, YU Changhai, Et al., Research on active power control strategy for wind/photovoltaic/ energy storage hybrid power system and its engineering application, Automation of Electric Power Systems, 38, 7, pp. 105-110, (2014)
  • [3] LI Jiang, ZHANG Yongli, LIU Qiang, Et al., Research on grid-connected control strategy of distributed PV-storage microgrid system, Power System Protection and Control, 45, 23, pp. 90-97, (2017)
  • [4] YANG Tao, ZHOU Jun, WANG Wenxuan, Et al., Study of the application of energy storage technology in photovoltaic/ battery micro-grid, Power Electronics, 52, 6, pp. 72-77, (2018)
  • [5] LIU Yingshu, WANG Cuimin, Coordinated control strategy for micro-grid with photovoltaic and energy storage units in grid connected operation, Proceedings of the CSU-EPSA, 30, 1, pp. 127-132, (2018)
  • [6] XUE Hua, LI Haixia, WANG Yufei, DC bus stabilization control of distributed photovoltaic-energy storage DC generation system based on nonlinear differential flatness method, Power System Protection and Control, 44, 18, pp. 46-53, (2016)
  • [7] FANG Jinghui, WEN Zhen, Research on local adaptive voltage control strategy based on distributed PV, Power System Protection and Control, 45, 23, pp. 90-97, (2017)
  • [8] EFSTRATIOS C, DANIEL J R., A comparison of grid- connected battery energy storage system designs, IEEE Transactions on Power Electronics, 32, 9, pp. 6913-6923, (2017)
  • [9] TANG Chenghui, XU Jian, SUN Yuanzhang, Et al., Stochastic battery energy storage scheduling considering cell degradation and distributed energy resources, International Transactions on Electrical Energy Systems, 29, 7, pp. 1-20, (2019)
  • [10] XIONG Liansong, ZHUO Fang, LIU Xiaokang, Et al., Research on fast phase synchronization scheme for three-phase unbalanced power system, Proceedings of the CSEE, 35, 22, pp. 5682-5691, (2015)
123