智能光伏海水淡化系统的研究与开发  

RESEARCH AND DEVELOPMENT OF INTELLIGENT PHOTOVOLTAIC REVERSE OSMOSIS DESALINATION SYSTEMS

作　　者：陈明[1] 徐政[1] 陈锐坚 Chen Ming;Xu Zheng;Chen Ruijian(National Key Laboratory of Power Systems in Shenzhen,Graduate School of Tsinghua University in Shenzhen,Shenzhen 518055,China;Shenzhen Solartech Renewable Energy Co.,Ltd.,Shenzhen 518055,China)

机构地区：[1]清华大学深圳研究生院电力系统国家重点实验室深圳研究室,深圳518055 [2]深圳天源新能源股份有限公司,深圳518055

出　　处：《太阳能学报》2019年第7期1859-1865,共7页Acta Energiae Solaris Sinica

摘　　要：为推广海水淡化技术的应用、就地解决偏远海岛的淡水供应问题,研究智能光伏反渗透海水淡化控制技术,开发双输出逆变控制器,实现根据太阳辐照度的系统启停和运行模式切换、通过水泵调速控制实施最大功率点跟踪,集成基于进/出水导电率/压力及液位监测的运行状态判断和故障保护功能,并将柴油发电机等作为后备电源,以保证连续阴雨天时的淡水供应。小型样机系统的实验表明,配置3.6 kW光伏阵列能保证晴天条件下日产1 t淡水,并具有全自动运行可靠、设备维护措施全等特点,尤其适宜在无电和缺乏技术人员的地区推广应用。In order to extend the application of seawater desalination technology and provide a local solution of freshwater supply applicable to remote islands,an intelligent control technology and a dual-output inverter for photovoltaicreverse osmosis desalination system are researched and developed in this paper.According to solar irradiance intensity,automatic start/stop of the system,operation mode shifting and maximum power point tracking through pump speedcontrol are implemented.The functions of operating state identification and fault protection via monitoring theconductivities,the pressures of feed water and fresh water are integrated in the inverter.Besides,a backup dieselgenerator can be used to keep fresh water being supplied during continuous overcast or rainy days.The experimentalresults of a small prototype system demonstrate that a 3.6 kW PV array can ensure 1 m^3 of daily freshwater production insunny days.With the advantages including fully automatic reliable operation and well equipment maintenance measures,it is especially suitable for the wide applications pertinent to such areas without power grid and lack of technicians.

关 键 词：太阳能发电 反渗透 海水淡化 全自动运行 智能控制 双输出逆变器 最大功率点跟踪 

分 类 号：TM615[电气工程—电力系统及自动化]