Interfacing of Parametric Average-Value Models of LCR Systems in Fixed-Time-Step Real-Time EMT Simulations
Seyyedmilad Ebrahimi, Navid Amiri, Juri Jatskevich
Abstract
Parametric average-value models (PAVMs) of line-commutated converters have been developed for efficient simulation of power systems transients. In this letter, the numerical properties of existing current-source (CS) and voltage-source (VS) interfacing techniques of PAVMs are analyzed. A new alternative compensated-voltage-source (CVS) interface is proposed for implementing PAVMs in fixed-time-step simulation environment for offline and/or real-time execution. The CVS approach is shown to have advantageous eigenvalues permitting using larger time-steps while retaining accuracy, which is desirable for real-time simulations of power systems.
Topics & Concepts
InterfacingConvertersComputer scienceParametric statisticsVoltageReal-time simulationInterface (matter)Power (physics)Electric power systemVoltage sourceControl theory (sociology)Electronic engineeringSimulationElectrical engineeringComputer hardwareEngineeringMathematicsParallel computingArtificial intelligencePhysicsQuantum mechanicsStatisticsMaximum bubble pressure methodControl (management)BubbleReal-time simulation and control systemsHVDC Systems and Fault ProtectionMicrogrid Control and Optimization