The Ideal Switch Block of the SimPowerSystems Blockset versions 3.1 and 4.0 exhibited exponentially decaying oscillations (bouncing) on turning off when simulated in discrete step mode. When simulated in continuous mode the switch operates as expected with no oscillations on closing.
MATLAB: Does the Ideal Switch of the SimPowerSystems Blockset 3.1 (R14) and later exhibit a numerical instability when simulated with a discrete fixed-step solver
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