Design of a grid-simulator for a transient analysis of grid-connected renewable energy system
Design of a grid-simulator for a transient analysis of grid-connected renewable energy system
复制标题
用于并网可再生能源系统瞬态分析的电网模拟器设计
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
I. Yu
中科院分区：
文献类型：
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作者：
Namwon Kim;Sang;Hyo;C. Hwang;Gyeong;Hyo;Minwon Park;I. Yu
介绍了一种用于可再生能源并网系统暂态稳定性实验的电网模拟器的设计。针对可再生能源系统与真实的电网直接并网在暂态电网条件下存在的危险性，以及直接并网难以产生暂态电网条件的问题，通过仿真研究了可再生能源系统的暂态分析。如果在暂态稳定性实验中使用电网模拟器，则可以使用参考数据轻松生成暂态电网条件，而不会对电网产生任何影响。一个背靠背转换器被用作电网模拟器。利用PSCAD/EMTDC仿真软件设计了电网仿真器。为了验证其物理运行特性，研制了电网模拟器，实验结果表明，该模拟器能够产生对电网无任何影响的暂态电网工况。
This paper describes a design of grid-simulator for an experiment of transient stability of grid-connected renewable energy system. A transient analysis of renewable energy system has been researched by a simulation, because a direct connection of renewable energy system to the real utility under transient grid conditions is dangerous and it is hard to produce the transient grid conditions with direct grid connection. If a grid-simulator is used in the transient stability experiment, the transient grid condition might be generated easily using reference data without any impact on the grid. A back-to-back converter was employed as a grid-simulator. The grid-simulator was designed by simulation with PSCAD/EMTDC. In order to confirm its physical operational characteristics, the grid-simulator was manufactured and its experiment results showed that the grid-simulator could generate transient grid conditions without any influence to the grid.