风光互补发电系统性能实验研究

摘要

The solar-wind complementary system,combining advantages of wind and solar energy,plays an important role in solving the current energy shortage and economic environmental protection issues.In order to tind out how to maintain the optimal power of solar-wind complementary system,the influence of such parameters as wind speed,wind wheel radius,load,temperature and illumination intensity on the power of wind and solar energy were studied.In addition,based on the maximum power point tracking theory,the power demand of a household was optimized,and the characteristics of wind,solar and battery output power were discussed.The results show that,the generation output of the solar-wind complementary system is stable.At noon time in a day,the power output is abundant and don't require battery,implying the light and wind is enough during this time.However,in other time except 20:00～24:00 at night,the electricity basically needs to be supplied by the battery.%发挥太阳能、风能发电系统的互补优势,稳定高效地输出电能是解决现有能源紧缺、经济环保的重要举措.针对风光互补发电系统中的风能、太阳能发电特性,通过实验对影响风能、太阳能系统达到最优功率工作点的基本参数风速、风轮半径、负载、温度、光照强度等进行了研究;同时基于最大功率策略,针对某家庭用电需求进行优化设计,并探讨了风能、太阳能及蓄电池输出电能的特点.研究发现:风光互补发电系统发电输出基本稳定;在1天中的24h内,中午时间段光照及风量充足,不需要蓄电池供电且电量有盈余,而其他时间段,除了晚间20:00-24:00以外,基本都需要蓄电池供电.