Beijing Guodian Tong Network Technology Co., Ltd

State Grid Corporation of China

North China Electric Power University

State Grid Jibei Electric Power Company Limited

State Grid Qinhuangdao Power Supply Company

Man Leng

Wei Deng

Dong Liang

Xiaoling Zhu

Aimei Yan

Yaxin Liu

Runze Wu

Xinling Wu

Yue Yu

Weiyue Zhou

Chuanbo Tian

Ke Qiao

Tiejun Zhao

Jinglun Zhang

Zhuozhi Yu

Yefeng Zhang

Nanxiang Li

Shuhan Zhang

Wenwei Chen

Yi Yuan

Lili Zhang

Yukun Zhu

Bingyang Han

Xuemei Wu

Jian Zhu

Lingchen Sun

Sining Wang

Wenzhao Wu

Yonghong Ma

Shen Liu

A method for quantum key fusion-based virtual power plant security communication includes: identity authentication, performing identity authentication between a client and a server in a virtual power plant based on a communication requirement to acquire a root key; key distribution: generating a key encryption key and a message authentication key based on the acquired root key and performing negotiation on a data encryption key to obtain the data encryption key; and data encryption: encrypting to-be-encrypted data using the data encryption key, and implementing communication of the data. During the identity authentication or the key distribution, negotiation on a quantum key is performed by a quantum key server, and the quantum key obtained by the negotiation is used for implementing the identity authentication or used as the data encryption key. A device for quantum key fusion-based virtual power plant security communication and a computer storage medium are provided.

Method and device for quantum key fusion-based virtual power plant security communication and medium

A ground fault locating method for a power distribution network includes: monitoring each phase line of three phase distribution lines, and in the event of occurrence of waves with fault features, performing wave recording to obtain phase line record files; combining the record files corresponding to each of the three phase lines to obtain fault record files; and synthesizing the fault record files to form a transient record file, determining a fault location according to a wave having a maximum change in wave amplitude between two points in the transient record file, and displaying the fault location in a wiring diagram. The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.

Ground position of the ground fault method for power distribution network, system, and storage medium

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Man Leng