Razzaghi, Reza
Foti, Chrysanthi
Paolone, Mario
Rachidi, Farhad
HÃ¸idalen, Hans Kristian
Uglesic, Ivo
A Novel Method for the Optimal Parameter Selection of DiscreteTime Switch Model
Proceedings of the 10th International Conference on Power Systems Transients (IPST 2013)
Proceedings of the 10th International Conference on Power Systems Transients (IPST 2013)
Proceedings of the 10th International Conference on Power Systems Transients (IPST 2013)
Proceedings of the 10th International Conference on Power Systems Transients (IPST 2013)


Discretetime switch model
Modified nodal analysis
Fixed admittance matrix nodal method
Realtime simulation
2013
2013
The paper proposes a novel method for the optimal parameter selection of the discretetime switch model used in circuit solvers that adopt the Fixed Admittance Matrix Nodal Method (FAMNM) approach. As known, FAMNMbased circuit solvers allow to reach efficient computation times since they do not need the inversion of the circuit nodal admittance matrix. However, these solvers need to optimally tune the socalled discrete switch conductance, since this parameter might largely affect the simulations accuracy. Within this context, the method proposed in the paper minimizes the distance between the eigenvalues of the original circuitâ€™s nodal admittance matrix with those associated with the presence of the discretetime switches. The method is proven to provide values of the discretetime switch conductance that maximize the simulation accuracy and minimize the losses on this artificial parameter. The performances of the proposed method are finally validated by making reference to two test cases: (i) a circuit composed of RLC elements, (ii) a network model that includes a singlephase transmission line.
The University of British Columbia
Proceedings of the 10th International Conference on Power Systems Transients (IPST 2013)
Conference Papers