Adaptive state estimation for power systems

A method comprising:

• receiving, by a state estimator of a power grid, power grid data from a plurality of sensors in the power grid, from a plurality of local controllers in the power grid, or from both, wherein the power grid data correspond to characteristics of the power grid;
• determining, with the state estimator, a state estimate based on the power grid data;
• calculating, with the state estimator, a first gain matrix based on a Gauss-Newton method;
• updating, with the state estimator, the state estimate based on the first gain matrix;
• calculating, with the state estimator, a second gain matrix based on Newton's method;
• updating, with the state estimator, the state estimate based on the second gain matrix;
• iteratively recalculating, with the state estimator, the second gain matrix and updating the state estimate based on the second gain matrix until the state estimate converges;
• and sending, by the state estimator, the converged state estimate to a power grid controller of the power grid, wherein the power grid controller is configured to execute at least one power grid control application based on the converged state estimate.