煤矿供电系统中晃电现象的危害及其防治

发布时间：2019-03-06 17:32

【摘要】：为了防治煤矿供电系统中出现的晃电故障,对煤矿供电系统中晃电现象产生的原因及危害进行分析,通过对电源侧和负荷侧的向量分析和理论仿真,发现在15 ms内进行治理,可以消除晃点故障带来的影响。采用理论仿真和试验分析的方法,利用兆瓦级电池储能系统和电源快切技术对晃电故障的防治机理进行研究,根据煤矿供电系统工况,提出了基于兆瓦级电池储能系统的电源侧防治方案和基于电源快切技术的负荷侧治理方案。当电源侧出现晃电故障时,兆瓦级电池储能系统在15ms内输出有功功率,拉升电压,防止晃电危害发生;当负荷侧出现晃电故障时,负荷侧在15 ms内完成双电源切换,消除晃电影响。
[Abstract]:In order to prevent and cure the sloshing fault in coal mine power supply system, the cause and harm of sloshing phenomenon in coal mine power supply system are analyzed. Through vector analysis and theoretical simulation on the power supply side and load side, it is found that the power supply side and load side should be dealt with within 15 ms. The effect of sloshing point failure can be eliminated. By means of theoretical simulation and experimental analysis, the prevention and cure mechanism of sloshing fault is studied by using megawatt battery energy storage system and power supply fast cutting technology, according to the working conditions of power supply system in coal mine. A power side control scheme based on megawatt battery energy storage system and a load side control scheme based on power fast-cut technology are proposed. When there is a power sloshing fault on the power supply side, the megawatt battery energy storage system outputs the active power in the 15ms, pulls up the voltage, and prevents the harm of the sloshing electricity. When the power sloshing fault occurs on the load side, the load side completes the double power switch within 15 ms to eliminate the influence of the sloshing on the load side.
【作者单位】：神华乌海能源有限责任公司;
【基金】：国家高技术研究发展计划(863计划)资助项目(2014AA052302-1) 神华集团科技创新资助项目(ST930014SH01)
【分类号】：TD61

【相似文献】