摘要
风电海水淡化孤立微电网能量管理系统对风能的利用、淡水资源的供给及微电网稳定经济运行具有重要意义。首先建立了含风机、海水淡化、柴油发电机及蓄电池、超级电容器混合储能的孤立微电网模型,其次,在微电网稳定运行的基础上,考虑深充深放与浅充浅放对蓄电池损害的不同及海水淡化负荷的可控性,根据蓄电池在不同SOC、不同充放电功率情况下的寿命损耗,结合海水淡化产水收益,建立微电网经济运行模型,进而根据微电网经济运行目标得到长时间尺度下的能量管理方案。最后根据具体风速数据进行算例分析,得到孤立微电网系统采用能量管理方案运行24 h,系统收益为95.61元,不采用能量管理时,系统收益为92.81元,验证了所提策略的正确性、可行性和经济性。该策略可以提高微电网运行的经济效益。
Energy management of isolated micro-grid with wind turbines and seawater desalination devices is of great significance to the use of wind power, the supply of fresh water resources, and the economic operation of micro-grid. First, we constructed isolated micro-grid model including wind turbines, seawater desalination devices, diesel generator, battery and super capacitor. Thenl on the basis of stable operation, considering battery life loss under different SOC states and different operation conditions and the controllability of seawater desalination, as well as the seawater desalination produc- tion profit, we constructed a micro-grid economic model and then proposed a long-term energy management strategy aiming at economic operation. Example analysis based on wind speed data indicates that the micro-grid which operates 24 hours under energy management strategy reaps the benefits 95.61 Yuan while the micro-grid without energy management strategy reaps the benefits 92.81 Yuan. Results verify the correctness, feasibility, and economy of the proposed strategy. It is concluded that the strategy can improve economic efficiency of micro-grid.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2015年第7期2173-2179,共7页
High Voltage Engineering
关键词
微电网
风力发电
海水淡化
能量管理
经济运行
混合储能
micro-grid
wind power
seawater desalination
energy management
economic operation
hybrid energy storage
