Abstract
In 2019, China’s power industry proposed the goal of building a “ubiquitous power Internet of Things”. Through the ubiquitous construction of the Internet of Things, the traditional relay protection technology system gradually developed towards the intelligent direction. This paper mainly studies the fast zero-sequence current differential protection using the improved mutation quantity algorithm under the communication mode of power wireless private network. Through MATLAB simulation, it is proved that zero-sequence current differential protection can effectively realize fault location when there are overhead and cable lines in flexible grounding system in complex distribution network.
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