Fast and Accurate Frequency Response Estimation for Large Power System Disturbances Using Second Derivative of Frequency Data
Weikang Wang, Wenxuan Yao, Chang Chen, Xianda Deng, Yilu Liu
Abstract
Accurate Frequency Response Estimation (FRE) is critical to reliability risk management of large power system disturbances. This letter proposes a measurement-driven approach for FRE by calculating the second derivative of frequency from synchrophasor data. Compared with conventional methods, the proposed method has major advantages of low computational burden and high accuracy, which makes it appropriate for real-time FRE in bulk power systems. The effectiveness of this method is validated with actual synchrophasor data on 96 confirmed historical power system disturbances in the U.S. eastern interconnection.
Topics & Concepts
Electric power systemReliability (semiconductor)Reliability engineeringFrequency responseEstimationInterconnectionComputer sciencePower (physics)Control theory (sociology)EngineeringElectronic engineeringTelecommunicationsElectrical engineeringControl (management)Systems engineeringArtificial intelligencePhysicsQuantum mechanicsPower System Optimization and StabilityPower System Reliability and MaintenanceHigh-Voltage Power Transmission Systems