中文摘要：

现代电力系统中,由于系统容量增大、区域大电网互联、线路负荷骤增,使系统短路电流己经远远超过了目前断路器的开断能力,短路电流的超标治理问题已经成为电网公司亟待解决的难题。基于上述存在问题,文中首先分析了基于零耗损深度限流原理的深度限流装置原理及工作逻辑;其次对其产品进行介绍;最后基于实际某地330 kV线路进行仿真与计算。结果表明：采用零损耗深度限流装置在系统承受时间范围内对电网短路故障电流进行深度限制,使电网短路故障暂时隔离且短路电流大幅削减。

英文摘要：

For modern power system, the increasing system capacity, the interconnection of regional large power grids, and the rising line load have made the short-circuit current far surpass the current breaking capacity of circuit breakers. So excessive short-circuit current governance has become an urgent topic for power grid companies. In this paper, the principle and working logic of the deep limiting device of current based on the zero-loss deep current limiting principle are analyzed, the zero-loss deep current limiter is introduced, and an actual 330 kV power grid is simulated and calculated. Results show that the zero-loss deep current limiting device can temporarily isolate short-circuit fault of the power grid, and significantly reduce short-circuit current.