METHOD AND APPARATUS FOR MONITORING SYNCHRONOUS SAFETY AND STABILITY OF A RENEWABLE ENERGY GRID-CONNECTED SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM

Embodiments of the application disclose a method and apparatus for monitoring synchronous safety and stability of a renewable energy grid-connected system, a medium, an equipment and a program. The method includes the following operations. According to acquired parameters, a real-time relative phase-locked angle is calculated, a synchronous operable range of the renewable energy grid-connected system is determined, and a safety boundary of a relative phase-locked angle of the renewable energy grid-connected system based on an overvoltage constraint is determined. An operable range of the relative phase-locked angle of the renewable energy grid-connected system based on the overvoltage constraint is determined according to the synchronous operable range of the renewable energy grid-connected system and the safety boundary of the relative phase-locked angle. The synchronous safety and stability of the renewable energy grid-connected system is judged by judging whether the real-time phase-locked angle exists in the operable range of the relative phase-locked angle of the renewable energy grid-connected system based on the overvoltage constraint. The above method may reduce probability of occurrence of a safety problem of a renewable energy power generator caused by overvoltage, and may fully ensure synchronous, safe and stable operation of the renewable energy grid-connected system.