Unscented transform

Extended Kalman filter

Computer science

Ensemble Kalman filter

Algorithm

Control (management)

Invariant extended Kalman filter

Fast Kalman filter

Artificial intelligence

Kalman filter

Control theory (sociology)

Alpha beta filter

Moving horizon estimation

IEEE Access

The Kalman-filter-based algorithms as the mainstream algorithms of dynamic state estimation of power systems have been extensively used to provide accurate data for power system applications. However, few comparisons are made to show their advantages and disadvantages. In this paper, four Kalman-filter-based algorithms (i.e., extended Kalman filter, unscented Kalman filter, cubature Kalman filter, and ensemble Kalman filter) are compared to show their differences from implementation complexity, estimation accuracy and calculation efficiency, the resistance to measurement errors, and the sensitivity to system scales. Finally, the simulation results on the 3-machine, 10-machine, and 48-machine power systems show their advantages and disadvantages.

Comparisons on Kalman-Filter-Based Dynamic State Estimation Algorithms of Power Systems