Analytical Expression on Transient Overvoltage Peak Value of Converter Bus Caused by DC Faults
Chunya Yin, Fengting Li
Abstract
This letter proposes an analytical expression on transient overvoltage peak value caused by DC blocking (DCB) and commutation failure (CF). The proposed method can obtain the transient overvoltage risk without modeling the complex AC/DC hybrid system. The method only requires the equivalent parameters of the AC system and the operation parameters of the DC system to effectively calculate the overvoltage without using the dynamic simulation software. The simulation results verify the effectiveness and correctness of the proposed method.
Topics & Concepts
OvervoltageTransient (computer programming)CommutationCorrectnessTransient analysisControl theory (sociology)Blocking (statistics)SoftwareComputer scienceEngineeringVoltageElectronic engineeringTopology (electrical circuits)Electrical engineeringTransient responseAlgorithmProgramming languageOperating systemArtificial intelligenceControl (management)Computer networkHVDC Systems and Fault ProtectionHigh-Voltage Power Transmission SystemsSilicon Carbide Semiconductor Technologies