为实现电力系统数字仿真平台全面、快速、经济地考核配电网接地故障处置算法,提出了一种10 kV配电网单相接地故障仿真建模方法,能够实现系统电容电流设计及校验、中性点接地方式切换控制、Z形接地变压器建模及参数校核.基于该建模方法,在实时数字仿真系统(Real Time Digital Simulation System,RTDS)完成建模,并接入小电流接地选线装置进行试验验证.结果表明,所搭建的配电网仿真模型的关键参数满足设计预期,小电流接地选线装置选线正确.
Research on Simulation and Modeling Technology for Single-Phase Grounding Fault in 10 kV Distribution Network
In order to realize a comprehensive,fast,and economical assessment of the grounding faults disposal algorithm in the power system digital simulation platform,the author proposes a simulation modeling method for single-phase grounding faults in a 10 kV distribution network,which can realize the system capacitance current design and verification,neutral grounding switching control,Z-shaped grounding transformer modeling and parameter verification.Based on the modeling method,the modeling is completed in Real Time Digital Simulation System(RTDS)and connected to the small current grounding selection device for test verification.The results show that the key parameters of the simulation model of the distribution network meet the design expectations,and the small-current grounding routing device is correctly routed.
distribution networksingle phase groundingfault simulationRTDS
国家科技期刊平台
NSTL
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