Coordination control strategy of tidal power generation in island grid
Yang Junyou1,Wang Haixin1,Xing Zuoxia1,Cui Jia1,Zhang Huayou1,Li Meizheng2,Li Ming2
1. School of Electrical Engineering Shenyang University of Technology Shenyang 110870 China; 2. College of Engineering Ocean University of China Qingdao 266100 China
Abstract：In order to improve the stability of tidal power generation system in island mode, characteristics of tidal flow and inverter control strategy was researched. Each subsystem in island grid was modeled and analyzed. The operation scheme of island grid was based on the principle that V/f control strategy was the master and P/Q control strategy was slaver. Solution based on DC link of V/f inverter in parallel to the right amount of storage was proposed, which both increased the reliability and economy of system, and solved the problem of critical load supply. In order to guarantee the DC link voltage, control algorithm based on variable coefficient of DC link voltage was proposed. Considering impacts of micro-source output and load fluctuating on grid stability in island mode, regulation margin in island grid was presented. A regulation margin optimization control algorithm was proposed which was suitable for tidal power generation. Simulation and analysis was conducted by PSCAD. The results show that proposed ontrol algorithms guarantee the grid stability in island mode. The reliability and validity of the control algorithm were verified by experiments.
杨俊友,王海鑫,邢作霞,崔嘉,张华友,李美征,黎明. 孤岛模式下潮流能发电系统协调控制策略[J]. 电工技术学报, 2015, 30(14): 551-560.
Yang Junyou,Wang Haixin,Xing Zuoxia,Cui Jia,Zhang Huayou,Li Meizheng,Li Ming. Coordination control strategy of tidal power generation in island grid. Transactions of China Electrotechnical Society, 2015, 30(14): 551-560.
[1] Jahangir Khan, Daniel Leon, Ali Moshref, et al. Network security assessments for integrating large-scale tidal current and ocean wave resources into future electrical grids[J]. Proceedings of the IEEE, 2013, 101(4): 956-976. [2] 关雅娟, 邬伟扬, 郭小强. 微电网中三相逆变器孤岛运行控制技术[J]. 中国电机工程学报, 2011, 31(33): 52-60. Guan Yajuan, Wu Weiyang, Guo Xiaoqiang. Control strategy for three-phase inverters dominated microgrid in autonomous operation[J]. Proceedings of the CSEE, 2011, 31(33): 52-60. [3] 孙孝峰, 吕庆秋. 低压微电网逆变器频率电压协调控制[J]. 电工技术学报, 2012,27(8):77-84. Sun Xiaofeng, Lü Qiuyan. Improved PV control of grid-connected inverter in low voltage micro-grid[J]. Transactions of China Electrotechnical Society, 2012,27(8):77-84. [4] 马添翼, 金新民, 梁建钢. 孤岛模式微电网变流器的复合式虚拟阻抗控制策略[J]. 电工技术学报, 2013, 28(12): 304-312. Ma Tianyi, Jin Xinmin, Liang Jiangang. Multiple virtual impedance control method of micro-grid converter under island mode[J]. Transactions of China Electrotechnical Society, 2013, 28(12): 304-312. [5] Morad Mohamed Abdelmageed Abdelaziz, Hany E. Farag, Ehab F. El-Saadany. Optimum droop parameter settings of islanded microgrids with renewable energy resources[J]. IEEE Transactions on Sustainable Energy, 2014, 5(2): 434-445. [6] 孙孝峰, 王娟, 田艳军, 等. 基于自调节下垂系数的DG 逆变器控制[J]. 中国电机工程学报, 2013,33(36):71-78. Sun Xiaofeng, Wang Juan, Tian Yanjun, et al. Control of DG connected inverters based on self-adaptable adjustment of droop coefficient[J]. Proceedings of the CSEE, 2013,33(36):71-78. [7] Inam Ullah Nutkani, Poh Chiang Loh, Peng Wang, et al. Autonomous droop scheme with reduced generation cost[J]. IEEE Transactions on Industrial Electronics, 2014, 61(12): 6803-6809. [8] Mehdi Savaghebi, Alireza Jalilian, Juan C. Vasquez, et al. Secondary control scheme for voltage unbalance compen-sation in an islanded droop-controlled microgrid[J]. IEEE Transactions on Smart Grid, 2012, 3(2): 797-806. [9] 杨向真, 苏建徽, 丁明, 等. 面向多逆变器的微电网电压控制策略[J]. 中国电机工程学报, 2012, 32(7):7-13. Yang Xiangzhen, Su Jianhui, DING Ming, et al. Voltage control strategies for microgrid with multiple inverters[J]. Proceedings of the CSEE, 2012, 32(7): 7-13. [10] Bo Zhao, Xuesong Zhang, Jian Chen. Integrated microgrid laboratory system[J]. IEEE Transactions on Power Systems, 2012, 27(4): 2175-2185. [11] 施琳, 罗毅, 施念, 等.高渗透率风电-储能孤立电网控制策略[J]. 中国电机工程学报, 2013, 33(16): 78-85. Shi Lin, Luo Yi, Shi Nian, et al. A control strategy of isolated grid with high penetration of wind and energy storage systems[J]. Proceedings of the CSEE, 2013, 33(16): 78-85. [12] 姜世公, 李琰, 王卫. 一种微网系统孤岛运行条件下的能量管理策略[J]. 电工技术学报, 2014, 29(2): 130-135. Jiang Shigong, Li Yan, Wang Wei. A novel power management strategy for microgrid on islanding mode[J]. Transactions of China Electrotechnical Society, 2014, 29(2): 130-135. [13] 徐少华, 李建林. 光储微网系统并网/孤岛运行控制策略[J]. 中国电机工程学报, 2013, 33(34): 25-32. Xu Shaohua, Li Jianlin. Grid-connected/island operation control strategy for photovoltaic/battery micro-grid[J]. Proceedings of the CSEE, 2013, 33(34): 25-32. [14] Lewis Johnston, Francisco Díaz-González, Oriol Go-mis-Bellmunt, et al. Methodology for the economic opti-misation of energy storage systems for frequency support in wind power plants[J]. Applied Energy, 2015, 74: 681-688. [15] 王荃荃, 秦川, 鞠平, 等. 考虑电池储能系统荷电状态的近海可再生能源综合发电协调控制[J]. 电网技术, 2014, 38(1): 80-86. Wang Quanquan, Qin Chuan, Ju Ping, et al. A coordinated control strategy for hybrid offshore renewable energy power generation considering state of charge of battery energy storage system[J]. Power System Technology, 2014, 38(1): 80-86. [16] Sarina Adhikari, Fangxing Li. Coordinated V-f and P-Q control of solar photovoltaic generators with MPPT and battery storage in microgrids[J]. IEEE Transactions on Smart Grid, 2014, 5(3): 1270-1281. [17] Li Wang,Chao-Nan Li. Dynamic stability analysis of a tidal power generation system connected to an onshore dis-tribution system[J]. IEEE Transactions on Energy Conver-sion, 2011, 26(4): 1191-1197. [18] Ben Whitby, Carlos E., Ugalde-Loo. Performance of pitch and stall regulated tidal[J]. IEEE Transactions on Sustainable Energy, 2014, 5(1): 64-72. [19] 高飞, 李广雪, 乔璐璐. 山东半岛近海潮汐及潮汐、潮流能的数值评估[J]. 中国海洋大学学报, 2012, 42(12): 91-96. Gao Fei, Li Guangxue, Qiao Lulu. Resource assessment of the tidal energy around the shandong peninsula[J]. Periodical of Ocean University of China, 2012, 42(12): 91-96. [20] Mohammadreza F. M. Arani, Yasser Abdel-Rady I. Mo-hamed. Analysis and impacts of implementing droop control in DFIG-based wind turbines on microgrid/weak-grid stability[J]. IEEE Transactions on Power Systems, 2015, 30(1): 385-396. [21] 肖运启, 贺贯举, 王昆朋, 等. 电网约束下变速风电机组的限负荷控制策略[J]. 电网技术, 2014, 38(2): 457-462. Xiao Yunqi, He Guanju, Wang Kunpeng, et al. De- load control strategy for variable speed wind turbine generation units under constraint of power grid [J]. Power System Technology, 2014, 38(2): 457-462. [22] Tine L. Vandoorn, Bart Meersman, Jeroen D. M. De Kooning, et al. Analogy between conventional grid control and islanded microgrid control based on a global DC-link voltage droop [J]. IEEE Transactions on Power Delivery, 2012 27(3): 1405-1414.
2015, Vol. 30 
