GHM

Zheng Zhang, Chi-Un Lei, Ngai Wong
2009 Proceedings of the 2009 International Conference on Computer-Aided Design - ICCAD '09  
A generalized Hamiltonian method (GHM) is proposed for passivity test of descriptor systems (DSs) which describe impedance or admittance input-output responses. GHM can test passivity of DSs with any system index without minimal realization. This frequency-independent method can avoid the time-consuming system decomposition as required in many existing DS passivity test approaches. Furthermore, GHM can test systems with singular D + D T where traditional Hamiltonian method fails, and enjoys a
more » ... ils, and enjoys a more accurate passivity violation identification compared to frequency sweeping techniques. Numerical results have verified the effectiveness of GHM. The proposed method constitutes a versatile tool to speed up passivity check and enforcement of DSs and subsequently ensures globally stable simulations of electrical circuits and components.
doi:10.1145/1687399.1687541 dblp:conf/iccad/ZhangLW09 fatcat:7rpjbypwyvgrxdakdpfycghvwu