Applying fixed point homotopy to nonlinear DAEs deriving from switching circuits

Chiarantoni, E.; Fornarelli, G.; Vergura, Silvano; Politi, T.

doi:10.1016/s0167-739x(02)00170-x

Cited by 4 publications

(1 citation statement)

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“…This is of critical importance in the simulation of power electronics devices. Recently, a method based on a hybrid approach (piecewise transients analysis joined by dc analysis) has been proposed in order to avoid numerical difficulties associated with switching events [35]. This approach is particularly interesting when nonlinear solution methods are employed for the entire network.…”

Section: B Latency Exploitation On a Rectifier Bridgementioning

confidence: 99%

Multirate Simulations With Simultaneous-Solution Using Direct Integration Methods in a Partitioned Network Environment

Moreira

Martí

Zanetta

et al. 2006

IEEE Trans. Circuits Syst. I

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Multirate simulation of electric networks exhibiting a wide variety of time constants decreases the simulation runtimes by exploiting the property of circuit latency. The fundamental idea is to use different integration steps for different network subsystems, according to the requirements of accuracy of each subsystem. Programs that exploit circuit latency are usually based on relaxation methods that require iterations among the different subsystems of the original networks. These methods lack the numerical robustness of direct implicit integration methods used in circuit simulators and are not adequate for real-time simulation due to their non-uniform solution times. This paper proposes circuit latency exploitation without iterations making use of the concept of interlinked Multi-Area Thevenin Equivalents (MATE). Results are presented showing the efficiency and accuracy of the method.

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Section: B Latency Exploitation On a Rectifier Bridgementioning

confidence: 99%