Research on Remote Dynamic Patrol Technology of Relay Protection Based on Master-Substation Interaction

Traditional fixed remote patrol strategies have gradually failed to meet the needs of secondary professional intelligent operation and maintenance. In order to improve the flexibility and intelligence level of relay protection patrol, a remote dynamic patrol technology based on master-substation interactive relay protection is proposed. First, the formulation rules of patrol strategies under different master-substation interaction protocols are studied, and then the requirements for issuing dynamic patrol strategies are analyzed. Finally, an application example of dynamic patrol strategies is given. The new dynamic patrol scheme will effectively improve the level of intelligent patrol of relay protection.