Abstract: In the power system with high-penetration renewable energy, a single short-circuit fault easily causes large-scale renewable energy into the low voltage ride-through condition, impacting the system with the high-capacity short-time power. This may result in the transient maximum frequency deviation exceeding the low-frequency load shedding threshold and lead to load losses. Including electrochemical energy storage in the emergency control triggered by the power grid fault events is an effective means to address issues of transient frequency over-limitation under the short-time power impact. To achieve this, this paper constructs a system frequency response analysis model considering the emergency power control using energy storage under the short-time power impact of renewable energy. Then, the impact of release power and duration of the energy storage on the frequency characteristics of the system under short-time power disturbances is analyzed and summarized. Based on this theoretical foundation and considering both transient low-frequency and high-frequency safety under the short-time power impact, this paper proposes a method for calculating the minimum emergency release energy of the energy storage to avoid low-frequency load shedding. The power and duration emergency control strategies using energy storage that meet the requirements are provided. Finally, the accuracy of the analysis results is validated in the IEEE 10-machine 39-bus system.