Nr Electric Co., Ltd

Nr Engineering Co., Ltd

Ming Yuan

Yong Chen

Xiang Li

Taixun Fang

Yan Li

Xiang Zhang

Qiang Zhou

Yongping Wang

Jifeng Wen

Weiming Pan

Tianen Zhao

Guanghua Li

Dewen Li

Shengfu Gao

Guqing Zhou

Zongguang Xu

Yucan Zhao

Within a predetermined time range, record time information of status indication signals fed back by thyristor control units (TCU) of a converter valve. Perform statistics and comparison of the pieces of time information using a bias statistics method. Mark a thyristor level whose bias exceeds a preset value. And determine a probability of failure in the thyristor according to the marking result.

Converter valve fault warning method and system

An apparatus and method for ensuring the reliability of a trip protection of an intelligent substation. The apparatus comprises a main CPU and an auxiliary CPU connected together, and a main FPGA and an auxiliary FPGA connected together. The main FPGA and the auxiliary FPGA are connected to a physical layer of a protection apparatus, and the main CPU and the auxiliary CPU are connected to a state monitoring data output end of a protected device. The main CPU sends a processing result to the main FPGA, the auxiliary CPU sends the processing result to the auxiliary FPGA, and the auxiliary FPGA synchronizes current information with the main FPGA after receiving information sent by the auxiliary CPU. When the main FPGA receives trip information, the main FPGA comparing the consistency of current trip information obtained from the main CPU with current trip information obtained from the auxiliary FPGA.

Apparatus and method for ensuring reliability of trip protection of intelligent substation

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Jiangsu, China

Ming Yuan