新能源接入背景下的变压器三相短路仿真实验  

Simulation Experiment of Transformer Three-Phase Short Circuit Under the Background of New Energy Integration

作　　者：罗艳红[1] 周博文 张娟 李广地 苏涵光 Luo Yanhong;Zhou Bowen;Zhang Juan;Li Guangdi;Su Hanguang(Northeastern University,Shenyang 110819)

机构地区：[1]东北大学,辽宁沈阳110819

出　　处：《中阿科技论坛（中英文）》2024年第12期90-94,共5页China-Arab States Science and Technology Forum

基　　金：2021年国家自然科学基金委项目“面向清洁能源消纳的能量枢纽互动调控与优化运行策略研究”(62173082)。

摘　　要：变压器是利用电磁感应原理来改变交流电压的装置,在电力系统中得到广泛的应用。随着新能源发电设备大量接入电网,变压器在运行过程中发生过载的概率大幅增加。由过载现象引起的变压器低压母线三相短路是一种严重的电气故障,短路时造成电流急剧增加,产生大量的热量和电弧,导致电力系统停电或者部分停电。文章采用Simulink软件对变压器低压母线三相短路进行仿真。该仿真实验不仅能够为变压器短路故障的处理提供依据,还能在新能源接入背景下有助于及时识别潜在风险,确保电力系统的安全可靠运行。Transformers are devices that use the principle of electromagnetic induction to change AC voltage and are widely used in power systems.With the large-scale integration of new energy generation equipment into the power grid,the probability of transformer overload during operation has significantly increased.The three-phase short circuit of transformer low-voltage busbar caused by overload phenomenon is a serious electrical fault,which causes a sharp increase in current,generates a large amount of heat and arc,and leads to power outage or partial power outage of the power system.The article uses Simulink software to simulate the three-phase short circuit of transformer low-voltage busbar.This simulation experiment can not only provide a basis for handling transformer short-circuit faults,but also help identify potential risks in a timely manner in the context of new energy integration,ensuring the safe and reliable operation of the power system.

关 键 词：新能源接入 电力系统故障 变压器过载 变压器短路 SIMULINK仿真 

分 类 号：TN79[电子电信—电路与系统]