基于PSASP的光伏发电系统建模及其并网对微电网电压质量的影响  

Modeling of Grid-connected PV Generation System and the Impact to Voltage Quality of Micro-grid Based on PSASP

作　　者：詹敏青 尹柳[2] 杨民京[2] 

机构地区：[1]华北电力大学电气与电子工程学院 [2]华中科技大学电气与电子工程学院

出　　处：《陕西电力》2014年第2期16-22,共7页Shanxi Electric Power

基　　金：国家自然科学基金资助项目(51177658)

摘　　要：首先对光伏发电系统发电原理、运行方式等进行了介绍,总结了光伏发电并网对电网影响的研究现状。其次,对光伏发电系统的电池特性进行简化,并基于PSASP仿真建立了光伏发电的电源模型;针对Benchmark模型,仿真了中压配网系统和低压微电网光伏发电接入情况;然后针对不同的天气条件,研究了不同形式的光伏发电系统接入对系统产生的稳态影响,以及不同容量的光伏发电系统接入对微电网稳态运行时电压质量的影响。最后提出了改善微电网电压质量的相关措施。This paper firstly introduces the PV generation related principle,the operation mode of PV systems,and summarizes the current research about the impact of PV connection to the grid.Secondly,the model of PV system is established based on software PSASP,in which the characteristics of PV cell are simplified.In the light of Benchmark＇s model,typical middle voltage distribution networks and micro-grid of low voltage are simulated which is in different access forms under different weather conditions.The study also takes the capacity of PV generation systems into consideration,along with the impact to voltage quality of steady-state operation,and the measures are put forward to improve the voltage quality at last.

关 键 词：光伏建模 微电网 电压质量 PSASP 

分 类 号：TM615[电气工程—电力系统及自动化]