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| Research on anti-override tripping technology of coal mine power supply system and its application |
| Dong Xuguang |
| Power Supply Branch, Huozhou Coal and Electricity Group Co., Ltd., Huozhou 031400, China |
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Abstract To prevent the power supply system from tripping is a more concerned problem for coal mine enterprises. Based on the brief overview of the power supply system of Jinbei Coal Industry, the anti-override trip system is designed and studied based on GOOSE technology. The system is divided into three levels : management layer, communication layer and interval layer, and each level plays a corresponding role to realize the anti-override trip effect. The main hardware facilities of the protection device are analyzed, and the power PC + FGPGA scheme is used for data analysis and processing, which enriches the function and reliability of the system. The designed anti-overstep tripping system is applied to the power supply engineering practice of northern Shanxi Coal Industry. The locking signal time of the lower device is set to 20 ms. Four power supply faults occur within half a year, and no overstep tripping occurs. The practice effect is good.
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| [ 1 ] 姚国华，高知睿，李小赛. 中国煤炭资源承载能力评价[ J ].
中国矿业，2020，29（ 8 ）：1 - 7.
[ 2 ] 景少波. 煤矿智能化开采技术发展现状及展望[ J ]. 陕西煤炭，2021，40（ 6 ）：184 - 187.
[ 3 ] 弓鹏飞. 煤矿供电系统线路保护装置研究与设计[ J ]. 机械工程与自动化，2021（ 6 ）：160 - 162.
[ 4 ] 刘 杰. 煤矿井下供电网络防越级跳闸保护系统的研究[ J ]. 山东煤炭科技，2021，39（ 11 ）：134 - 136.
[ 5 ] 张传金，李雨潭，刘 战，等. 矿用LCL型三电平静止无功发生器控制策略[ J ]. 工矿自动化，2020，46（ 5 ）：87 - 93.
[ 6 ] 许国来. 煤矿供电系统继电保护系统设计与应用研究[ J ]. 煤炭与化工，2021，44（ 8 ）：67 - 69.
[ 7 ] 毛卫清. 煤矿供电系统防越级跳闸技术应用探讨[ J ]. 煤炭工
程，2013（ 8 ）：15-17.
[ 8 ] 宋红卫. 煤矿供电系统防越级跳闸技术研究[ J ]. 电子世界，
2013（ 22 ）：78-79. |
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