Guo Dian Tong Network Technology Company Limited

State Grid Corporation of China

State Grid Corporation of China (sgcc)

State Grid Jibei Electric Power Company Limited

Beijing Guodian Tong Network Technology Co., Ltd

State Grid Information & Telecommunication Branch

State Grid Qinhuangdao Power Supply Company

State Grid Information & Telecommunications Branch Ltd.

Aimei Yan

Ning Li

Jianming Liu

Fengyu Wang

Jiye Wang

Dong Liang

Xiaoling Zhu

Liang Wu

Xinling Wu

Yaxin Liu

Man Leng

Jian Zhu

Xuemei Wu

Yue Yu

Lingchen Sun

Weiyue Zhou

Sining Wang

Chuanbo Tian

Ke Qiao

Lifang Yang

Shen Liu

Shuhan Zhang

Lili Zhang

Tiejun Zhao

Yi Yuan

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

A method for analyzing a user load in conjunction with time information and a system thereof are provided. In the case that an enterprise operates in a non-full-time operational mode, operation periods of the enterprise are adjusted, electricity prices for respective adjusted operation periods are obtained, and the electricity prices are multiplied with electricity consumptions to obtain electricity charges of the enterprise. In the case that the enterprise operates in a full-time operational mode, electricity consumptions in respective hours of the enterprise are adjusted, the electricity consumptions are multiplied with electricity prices for the respective hours to obtain electricity charges of the respective hours of the enterprise, and the electricity charges of the respective hours are accumulated to obtain a total electricity charge of the enterprise.

Method and system for analyzing user loads in combination with time information

A system for intelligent electric power utilization of park and a method thereof are provided. The system includes an acquisition system, a data processing system, an application system and a service system through which the acquisition system, the data processing system and the application system are connected to external system. The application system includes an intelligent interaction application subsystem, an electric power utilization monitoring application subsystem, an energy efficiency analysis application subsystem, an orderly electric power utilization application subsystem, a system security application subsystem and a man-machine interaction interface. Enterprise users are leaded to actively carry out requirement response. Energy conservation and emission reduction and peak shaving and valley filling are effectively realized in intelligent park. Capability of intelligent electric power utilization of the park is improved. Accordingly, load balancing capability of region is improved and safe and stable operation of the power grid is ensured.

Intelligent power utilization system and method for parks

Growing community of inventors

Beijing, China

Aimei Yan