并网光伏电站的PSASP/UPI仿真建模及分析  

PSASP /UPI Simulation Modelling and Analysis of the PV Power Station in Grid Integration

作　　者：孙文涛[1,2] 刘涤尘[2] 赵洁[2] 董飞飞[2] 陈恩泽[2] 曾正[3] 

机构地区：[1]江苏省电力公司电力经济技术研究院,南京210008 [2]武汉大学电气工程学院,武汉430072 [3]浙江大学电气工程学院,杭州310027

出　　处：《南方电网技术》2014年第3期67-71,共5页Southern Power System Technology

基　　金：国家高技术研究发展计划(863计划:2011AA05A119);中央高校基本科研业务费专项基金资助(201120702020011)~~

摘　　要：针对光伏电站和电网之间的交互影响,研究了适用于电网暂态分析的光伏电站模型,建立了含光伏阵列、逆变器、滤波器及控制保护系统的并网光伏电站暂态模型,并应用Matlab实时工具包模块和VC++语言生成了可被PSASP调用的自定义模型,仿真研究了并网光伏电站出力变化对电网影响及电网故障对以不同方式接入电网的并网光伏电站的影响。结果表明,该模型可用于光伏电站与电网的联合仿真。大规模光伏电源集中接入会引起电网电压波动;电网故障可能触发光伏电站脱网,使故障扩大;且在负荷母线集中接入方式下对电网电压及暂态稳定的影响更大。To study the interaction between the PV power plant and power grid, grid-connected photovoltaic system（GCPS） transient model is built. The transient model includes photovoltaic array, inverter, filter, as well as control and protection system. The custom model that can be called by PSASP is generated by RTW （Real-Time Workshop, RTW） modules in Matlab and VC ＋ ＋. In addi- tion, the variation of GCPS＇s power output and its impact on power grid are researched, and the influence of power grid fault on GCPS with different connection modes is also analyzed. The simulation results show that the model can be used for joint simulation between the GCPS and the power grid. Large-scale photovoltaic power connected to power grid will cause the grid voltage fluctuation, The power grid fault may lead to disconnection between the GCPS and the grid, resulting in the fault to expand. It takes the greater adverse impact to the voltage and transient stability of power grid when the GCPS is connected to the load bus.

关 键 词：并网光伏电站 PSASP UPI 暂态模型 自定义模型 电网故障 

分 类 号：TM615[电气工程—电力系统及自动化]