风/储/海水淡化直流系统的运行控制技术
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摘要
文章搭建了风/储/海水淡化直流系统,建立分级管理模型,并提出了系统分时段运行控制策略。以10min为间隔,采用遗传算法对直流系统运行分级管理模型进行求解,得到系统获得最大收益时的功率分配。在每一时段内,检测蓄电池荷电状态,利用海水淡化负荷的主动可调节性,实现风/储/荷协调配合,提出各单元应对有功扰动的分时段运行控制策略。通过仿真分析,验证所提策略的安全性和经济性。
In order to improve the reliability of combined operation of wind power and desalination loads, the DC power system including wind turbines, energy storage devices and desalination loads system is established. Then, the hierarchical management model and time-interval based operation strategy is proposed. Taking every 10 minutes as the time interval, the hierarchical management model of DC system is solved based on genetic algorithm and the power allocation is obtained under the purpose of maximizing the operation profit. Furthermore, in each time interval, the battery state of charge is detected firstly, and moreover, the control scheme in time intervals is proposed using the adjustable desalination loads. Consequently, the coordinated operation of wind-storage-load is achieved to suppress active power disturbances. The proposed control strategy of wind power-storage-desalination loads has been verified in simulation, and the results demonstrate that both the security and economy of the system can be ensured.
In order to improve the reliability of combined operation of wind power and desalination loads, the DC power system including wind turbines, energy storage devices and desalination loads system is established. Then, the hierarchical management model and time-interval based operation strategy is proposed. Taking every 10 minutes as the time interval, the hierarchical management model of DC system is solved based on genetic algorithm and the power allocation is obtained under the purpose of maximizing the operation profit. Furthermore, in each time interval, the battery state of charge is detected firstly, and moreover, the control scheme in time intervals is proposed using the adjustable desalination loads. Consequently, the coordinated operation of wind-storage-load is achieved to suppress active power disturbances. The proposed control strategy of wind power-storage-desalination loads has been verified in simulation, and the results demonstrate that both the security and economy of the system can be ensured.
引文
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[15]吴卫民,何远彬.直流微网研究中的关键技术[J].电工技术学报,2012,27(1):98-106,113.
[16]王毅,于明,李永刚.基于改进微分进化算法的风电直流微网能量管理[J].电网技术,2015,39(9):2392-2397.
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[19]王春,冯宾春,张金接,等.变负荷反渗透海水淡化技术研究[J].水处理技术,2012,38(8):59-61.
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[21]Riffonneau Y,Bacha S,Barruel F,et al.Optimal power flow management for grid connected PV systems with batteries[J].IEEE Transactions on Sustainable Energy,2011,2(3):309-320.
[2]冯宾春,张子皿.风光互补式微网海水淡化系统[J].可再生能源,2015,33(9):1281-1286.
[3]武耀勇.离网型风力发电和海水淡化联合技术配电方案[J].电力建设,2014,35(5):79-83.
[4]Oh H J,Hwang T M,Lee S.A simplified simulation model of RO systems for seawater desalination[J]Desalination,2009,238(1):128-139.
[5]Yoshihara T,Yokoyama A,Imanaka M,et al.A new method for securing regulating capacity for load frequency control using seawater desalination plant in small island power system[A].2010 International Conference on Power System Technology[C].Hangzhou:IEEE,2010.1-6.
[6]张建华,于雷,刘念,等.含风/光/柴/蓄及海水淡化负荷的微电网容量优化配置[J].电工技术学报,2014,29(2):102-112.
[7]刘青,樊世通,付超,等.考虑不同蓄电池SOC状态的风/储/海水淡化孤立微电网能量管理系统设计[J].高电压技术,2015,41(7):2173-2179.
[8]付超,廖仰凯,樊世通,等.风储海水淡化孤立微电网运行与控制实时仿真试验研究[J].电力系统保护与控制,2015,43(14):41-47.
[9]张祥宇,王慧.风电海水淡化孤立微电网的运行与控制[J].电力系统保护与控制,2015,43(4):25-31.
[10]朱晓荣,豆林林,蔡杰.独立海岛海水淡化直流微网能量管理策略研究[J].电测与仪表,2016,53(17):92-98.
[11]Li Guo,Wenjian Liu.Energy management system for stand-alone wind-powered-desalination microgrid[J].IEEE Trans.on Smart Grid,2016,7(2):1079-1087.
[12]Xiangyu Zhang,Kui Huang,Yi Wang,et al.Operation and control of isolated microgrid with wind turbines and seawater desalination equipment[A].2015 18th International Conference on Electrical Machines and Systems[C].Pattaya:IEEE,2015.427-431.
[13]Barklund E,Pogaku N,Prodanvic M,et al.Energy management system with stability constraints for standalone autonomous microgrid[J].Renewable and Sustainable Energy Reviews,2009,13(8):1966-1974.
[14]怀利敏,彭志刚,周江涛.基于PLC变频控制系统在反渗透海水淡化装置中的应用[J].自动化与仪器仪表,2011(3):81-83.
[15]吴卫民,何远彬.直流微网研究中的关键技术[J].电工技术学报,2012,27(1):98-106,113.
[16]王毅,于明,李永刚.基于改进微分进化算法的风电直流微网能量管理[J].电网技术,2015,39(9):2392-2397.
[17]刘畅,袁荣湘.微电网运行与发展研究[J].南方电网技术,2010,4(5):43-47.
[18]Asiljevsk J,Pecas Lopes J A,MatoS Ma.Evaluating the impacts of the multi-microgrid concept using multicriteria decision aid[J].Electric Power Systems Research,2012,91(1):44-51.
[19]王春,冯宾春,张金接,等.变负荷反渗透海水淡化技术研究[J].水处理技术,2012,38(8):59-61.
[20]Guo Y L,Tang S Q,Meng G,et al.Failure modes of valve-regulated lead-acid batteries for electric bicycle applications in deep discharge[J].Journal of Power Sources,2009,191(1):127-133.
[21]Riffonneau Y,Bacha S,Barruel F,et al.Optimal power flow management for grid connected PV systems with batteries[J].IEEE Transactions on Sustainable Energy,2011,2(3):309-320.