Method and device for measuring operation risk of cascade hydropower station containing mixed storage in consideration of uncertainty

The invention discloses a mixed storage-containing cascade hydropower station operation risk measurement method and device considering uncertainty, and the method comprises the steps: building a mixed pumped storage-containing cascade hydropower station medium-and-long-term peak load regulation electric quantity optimization model which comprises a first target function with the maximum power station total peak load regulation electric quantity as a target and a corresponding first constraint condition; establishing a mixed storage cascade hydropower station medium-and-long-term operation peak regulation electric quantity optimization model based on CVaR-IGDT, wherein the model comprises a second target function taking a deviation coefficient of maximum runoff as a target and a second constraint condition including a min function; and by selecting a lower boundary value of a runoff fluctuation range, the CVaR-IGDT-based medium-and-long-term operation peak regulation electric quantity optimization model of the