Advanced New Technologies Co., Ltd.

Hangzhou Biotest Biotech Co., Ltd.

Zhejiang University

Hangcha Group Co., Ltd.

Zhenyu Wang

Nan Li

Songbo Yue

Chunsheng Ye

Zhenxing Zhang

Luna Hou

Yu Yan

Donglian Qi

Zongping Jiang

Jingxuan Ruan

Yulin Chen

Jianliang Zhang

Jingcheng Mei

Yexin Mao

Ze Shi

Juyun Hu

Xuquan Wang

Changhao Li

A simulation method of distributed collaborative control for a microgrid under the attack of false data injection based on cyber-physical fusion is provided, which includes: establishing a distributed collaborative control simulation model for the microgrid frequency based on an RT_LAB real-time simulation tool OPAL-RT; designing a distributed collaborative control algorithm of a microgrid under the attack of false data injection based on DSP; simulating real-time communication among distributed generations based on an OPNET; simulating constant injection of false data, to realize that the frequency of each distributed generation in the microgrid is finally strictly tracked to the reference frequency. According to the method provided by the present application, no extra state observer is needed to observe the angular frequency states of local and neighboring nodes, so that the adverse effects caused by the attack of false data with a constant injection can be completely eliminated.

Distributed collaborative control method for microgrid frequency under attack of false data injection based on cyber-physical fusion

COVID immunoassay test device

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based file querying are provided. One of the methods includes: receiving a query request for a target file, the query request comprising identification information of a user and the target file; obtaining the target file based on the identification information of the user and the target file; providing a query page of the target file, the query page comprising interactive elements for selecting whether to upload the target file to a blockchain; receiving a user selecting to upload the target file to the blockchain; hashing the target file to generate a digital digest; signing the digital digest according to an asymmetric encryption algorithm using a private key associated with a cryptographic key pair to obtain a digital signature; and uploading the target file, the digital signature, and a public key associated with the cryptographic key pair.

Service processing system and method based on blockchain

Growing community of inventors

Hangzhou, China

Zhenyu Wang