Method to Calculate Maximum Speed of Turbine Expander of 10MW CAES after Load Rejection

It is considered to be one of the most promising large-scale energy storage technologies by applying compressed air energy storage (CAES). But there is no method to calculate the maximum speed after load rejection. By researching on the process of load rejection, the over-speed process is divided into three phases. The method to calculate the maximum speed is also worked out. And it supports the manufacture and the operation of CAES.