光伏发电并网大电网面临的问题与对策

妥善解决光伏发电系统接入大电网后2部分都能安全、高效运行是光伏发电技术大规模工业化应用的关键之一。分析了光伏发电系统及其并网的技术特点,简要阐述了光伏发电并网问题的研究现状。指出光伏发电大规模并网使大电网在研究与实验验证手段、对光伏发电系统影响大电网机理的认识、新型配电系统的规划、电网运行控制、电网监测保护与控制装备、技术标准与规范等方面面临新的问题,并提出了应对这些问题的策略。

roblems and Countermeasures for Large Power Grids in Connection with Photovoltaic Power

It is one of the key for photovoltaic power generation systems large-scale application in industry to properly deal large grid connection with photocoltaic power to make the two parts safe and efficient operation.This paper presents special characteristics of PV and its interconnection with the large power system, and reviews the status of the grid-connected PV. This paper concludes that the large-scaled photovoltaic power generation and its interconnection with power grids might give rise to many problems in terms of the research and testing means for the large grid, understanding of the impact mechanism of the PV generation on large power grids, planning of the new distribution system, operation and control, monitoring and protection system and control equipment of the grid, technical standards and codes and etc. Corresponding countermeasures for these problems are proposed in the paper.