Abstract:In order to solve the problems of large limitations and high operation risk of the current one-key sequence control function, combined with the actual operation of smart substations, a multi-parameter discrimination one-key sequence control system based on physical equipment perception is proposed, which combines the information transmission between the physical equipment perception layer and the sequence control system. The task selection and the anti-misoperation logic of the sequence control system are refined according to the multi-parameter criterion in combination with the network structure topology and the operation rules,while the confirmation of the multiple non-simultaneous perception and the operation state of the actual operation equipment is formed in combination with the protection rules transmitted by the relay protection interface of great and far-reaching significance to ensure the safe and reliable operation of substations and power grids.