ScalePhotovoltaicConnectedtoDistrictPowerNetwork.pdfVIP

Smart Grid 智能电网, 2013, 3, 119-125 /10.12677/sg.2013.34022 Published Online August 2013 (/journal/sg.html) Scale Photovoltaic Connected to District Power Network Voltage Stability* Feng Li1, Shuang Zhang1, Xuehong Yang1, Bei Tian1, Chunpeng Zhang2, Chengfu Wang2 1Ningxia Electric Power Company Electric Power Research Institute State Grid, Yingchuan 2Tsinghua University, Beijing Email: wc163.com Received: Jul. 5th, 2013; revised: Jul. 24th, 2013; accepted: Jul. 30th, 2013 Copyright ? 2013 Feng Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unre- stricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract: Large-scale photovoltaic hair to control access to the traditional power grid operation has brought a signifi- cant impact, including photovoltaic generation on voltage stability. This article will focus on large-scale photovoltaic power generation access for regional power grid voltage stability in-depth study to explore large-scale photovoltaic ac- cess to the regional power grid voltage stability related effects existing. This article first makes a deep analysis on solar farm operation and output characteristics, and constructs different scenes, under which makes a comparative analysis on the PV grid voltage stability. Based on the above analysis of impact, this article further studies the photovoltaic grid- connected inverter electric field and the field side reactive power compensation device to enhance the region’s contribu- tion to the stability of the grid voltage. Finally, in no additional reactive power regulation unit case, the realization of large-scale photovoltaic regional power grid voltage stability raised, which has an important reference value for large-scale photovoltaic grid connected areas. Keywords: Photovoltaic Generation; Voltage Stability; Power Output Characteristic; Inverters 规模化光伏