State Grid Jiangsu Electric Power Company

Nari Technology Co., Ltd.

State Grid Electric Power Research Institute

Jiangxi Electric Power Company

Bijun Li

Wei Xu

Jianfeng Ren

Chunlei Xu

Xiao Lu

Lin Liu

Jijun Yin

Xueming Li

Jianyu Luo

Qing Chen

Kaiming Luo

Yunsong Yan

Zheng Wu

Haifeng Xia

Haohao Wang

Zhuxiang Yao

Taishan Xu

Genhua Zou

Jianhua Xiong

Feng Wen

Huimin Peng

Hengzhi Cui

Xiangdong Chen

Xuecheng Jin

Provided are an accurate load shedding system, and a communication method and an access apparatus thereof. The access apparatus includes: two E1 interfaces, eight optical fiber interfaces, a CPU and an FPGA. The two E1 interfaces are respectively connected to a control apparatus A and a control apparatus B of a control substation. The eight optical fiber interfaces are respectively connected to eight control terminals. The FPGA includes eight optical fiber transceivers respectively connected to the eight optical fiber interfaces through serial interfaces, and two E1 transceivers respectively connected to the two E1 interfaces through serial interfaces. Each optical fiber transceiver includes a reset submodule. Each E1 transceiver also includes a reset submodule. The CPU is connected to the FPGA through a parallel bus.

Load shedding system, communication method and access apparatus thereof

A method of power system preventive control candidate measures identification self-adaptive to external environment, which is applicable to dynamic identification of stations and power equipment under the effect of calamity, and judgment of preventive control measures that lose or restore control capability, and those for which control range or cost has changed. Automatic online identification of set of preventive control candidate measures includes two tasks: identification of stations and power equipment under the effect of calamity, and adjustment of the space of preventive control measures. According to information of power transmission line fault probability due to calamity, online dynamic quantitative assessment of stations and equipment is performed under the effect of external environment, and automatically correct control range and control cost of the measures according to the effect on equipment, so that the result of preventive control adapts to real-time external environment, ensuring feasibility and economy of auxiliary decision making.

Method of power system preventive control candidate measures identification self-adaptive to external environment

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Jiangsu, China

Bijun Li