摘要
目前,风电与压缩空气储能耦合发电系统是发电后再与压缩空气储能系统连接,对于风电场一些不能发电工况的能量无法利用。通过风力发电功率特性和运行状态分析,找出产生废弃能量的2种工况:起动风速到切入风速期间的低风速工况和电网原因弃风工况,设计了一套新型的风电-压缩空气储能耦合发电系统,通过啮合切换装置可以进行风机和压缩机、发电机的切换运行。通过工况的效率分析,系统在2种工况时,可以回收废弃能量,实现电能输出,有效提高风电场的能量利用率。
At present, the coupling power generation system of wind power and compressed air energy storage is connected with the compressed air energy storage system after power generation, which is unable to utilize the energy in some power generation conditions of wind farms. In this paper, through analyzing the power characteristics and operation state of wind power generation, it is found that the two working conditions of waste energy generation are the low wind speed working condition during the period from starting wind speed to cutting wind speed and the wind abandoning working condition caused by power grid.A new type of wind power-compressed air energy storage coupling power generation system is designed, which can be used to switch between fan, compressor and generator through meshing switching device. The system can recover the waste energy in two working conditions through the efficiency analysis of working conditions, realize the power output, and improve the energy utilization rate of the wind farm effectively.
出处
《节能》
2019年第2期107-110,共4页
Energy Conservation
基金
国家重点研发计划"10MW级先进压缩空气储能技术"(项目编号:2017YFB0903600)
南方电网公司重点科技项目"压缩空气储能电站调节特性研究及经济性分析"(项目编号:GZKJXM20172214)
关键词
废弃能量收集
风电
压缩空气储能
耦合发电
低风速工况
waste energy collection
wind power
compressed air energy storage
coupling generation
low wind speed condition
