Abstract: A sensing device comprising an optical tactile sensor that comprises a sensing block is provided. The sensing block is made of a light-transmitting and elastic base material, and comprises a plurality of sensing cells. The sensing device may further comprise an optic fiber, a light sensor, and a calibration cell. A method of making the sensing device is also provided. The optical tactile sensor can provide multi-axial and multi-modal capabilities to practical applications.

Abstract: The provided is a reactive power optimization method for a power system based on distributed interval optimization, including following steps: S1. constructing a first model, where the first model includes an interval reactive power optimization model of a power system with a high renewable energy penetration rate, and the interval reactive power optimization model includes an objective function, a first constraint, and a constraint of an interval power flow equation; S2. obtaining a first state variable interval based on the constraint of interval power flow equation and a distributed interval power flow algorithm; S3. Converting the first model based on the first state variable interval and a security limit definition method, and obtaining a second model, where the second model includes a deterministic optimization model; and S4. obtaining a voltage and reactive power control strategy based on the second model and a primal-dual interior point method.