To achieve energy transition and low-carbon development goals

large-scale integration of new energy sources

represented by wind power

is accelerating

posing severe challenges to power system frequency and voltage stability.Energy storage technology is considered one of the effective solutions to address these challenges.To balance the needs of low-carbon transformation and secure

stable power system operation

this paper proposes an energy storage optimal allocation strategy considering a green certificate-tiered carbon emission trading mechanism and the stability requirements of power systems.First

a method for quantifying carbon reduction benefits of energy storage based on carbon responsibility allocation in the power system is developed. Then

a carbon emission cost quantification strategy is proposed

integrating both the green certificate-tiered carbon trading mechanism and energy storage carbon reduction benefits.Second

in response to voltage and frequency instability risks caused by high-penetration renewable energy integration

a frequency-voltage stability index system is constructed and formulated as constraint conditions that can be embedded into the optimization operation model.Finally

considering both low-carbon and stability requirements

an optimal configuration model for energy storage stations is established that takes into account the goals of low-carbon transition and secure system operation.Case studies based on an improved IEEE 39-bus system demonstrate that the proposed strategy effectively strikes a balance between low-carbon and stability objectives while improving system economic performance.