光伏并网发电系统的技术发展趋势  

Development Trends and Challenges of Grid-Connected Photovoltaic Systems

作　　者：方永辉[1] 孙宇贞[1] 李平 刘国建 

机构地区：[1]上海电力学院自动化工程学院,上海200090 [2]国网天津东丽供电公司,天津300300 [3]国网枣庄供电公司,山东枣庄277000

出　　处：《电器与能效管理技术》2016年第23期50-54,共5页Electrical & Energy Management Technology

摘　　要：介绍了光伏并网发电系统的发展成果和趋势。在各个国家高渗透的分布式发电(DG)资源使得GCPVS对电网造成无意的压力。现有和未来的标准,缓和了技术上的挑战与GCPVS的增长数量的关系。最大功率点跟踪(MPPT)和太阳能跟踪(ST)都可以在确保最小程度干扰电网的前提下提高光伏系统(PV)的工作效率。通过逆变器支持无功功率控制、频率调节和能量储存等途径来减轻采用GCPVS造成的挑战。This paper introduced the recent developments and trends pertaining to grid-connected photovoltaic systems （ GCPVS） . In countries with high penetration of distributed generation （ DG） resources, GCPVS have been shown to cause inadvertent stress on the electrical grid. A review of the existing and future standards that addresses the technical challenges associated with the growing number of GCPVS was presented. Maximum power point tracking（MPPT） , solar tracking（ST） and the use of transformless inverters can all lead to high efficiency gains of photovoltaic （PV） systems while ensuring minimal interference with the grid. Inverters that support ancillary services like reactive power control, frequency regulation and energy storage are critical for mitigating the challenges caused by the growing adoption of GCPVS.

关 键 词：光伏并网发电系统 分布式发电 PV MPPT 太阳能跟踪 逆变器 

分 类 号：TM727.2[电气工程—电力系统及自动化]