风/光/抽蓄复合系统的建模与仿真  

Modeling and simulation of hybrid wind/PV/pumped-storage system

作　　者：任岩[1,2] 郑源[3] 李延频[2] 

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]华北水利水电学院电力学院,河南郑州450045 [3]河海大学能源与电气学院,江苏南京210098

出　　处：《排灌机械工程学报》2011年第6期518-522,共5页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家863计划项目(2009AA05Z429);国家自然科学基金资助项目(51076041)

摘　　要：将抽水蓄能电站与风光互补系统相结合,建立了风/光/抽蓄复合系统数学模型,其中风力发电模型采用厂家提供的特性曲线利用线性插值的方法得到,光伏发电采用Hay模型,对可逆式水泵水轮机的水泵工况和水轮机工况分别建模,对蓄电池建立充电和放电模型.利用VC 2008开发工具开发了界面友好的仿真软件,实现了对复合系统中的风力发电机输出功率、光伏阵列输出功率、可逆式水泵水轮机的水泵工况与水轮机工况的输出功率及交流直流负载的仿真.通过实例计算得知:在风力发电机和光伏阵列的总出力小于总负荷量时,可逆式水泵水轮机运行在水轮机工况,发电供给负荷;在风速最大或光照最强的几个小时内,风力发电机和光伏阵列的总出力大于总负荷量时,可逆式水泵水轮机处于抽水工况,将多余的电能以水能的形式储存起来;蓄电池一般情况下都在满容量状态,只有在瞬时负荷或负荷很大时才放电,放电后又能及时充电.By combining pumped-storage power station and hybrid wind/PV system,hybrid wind/PV/pumped-storage system was established,in which wind power model was achieved by manufacturer provided linear-interpolating characteristic curve,PV modeled by Hay model,charging model and discharging model for battery as well as pump condition and turbine condition for reversible pumpturbine were modeled,respectively.Using VC 2008,an user-friendly simulation software was deve-loped,which can simulate the output power of wind turbine,PV,reversible pump-turbine and AC/DC loads.By an example the following were achieved.Firstly,as the total power of wind and PV was less than the total loads,the reversible pump-turbine operated in turbine mode to generate power for loads.In the several hours of higher light intensity and higher wind speed,the total power of wind and PV was more than the total loads,and the reversible pump-turbine operated in pump mode to pump water to store the extra power energy in the form of water potential energy.Secondly,normally batteries were at the state of full capacity,just as loads were very instant or were very large,the batteries discharged and after discharging they could be recharged immediately.

关 键 词：风/光/抽蓄复合系统 抽水蓄能电站 数学模型 风光互补系统 仿真 

分 类 号：S277.9[农业科学—农业水土工程] TK89[农业科学—农业工程]