TY - JOUR
T1 - Universal Model of Pulsed Alternators Using LTspice
AU - Negri, Cesar A.
AU - Dehnavi, Saeed Daneshvar
AU - Giesselmann, Michael G.
N1 - Publisher Copyright:
© 1973-2012 IEEE.
PY - 2020/10
Y1 - 2020/10
N2 - The high power and energy density of synchronous machines turn them into reliable sources of energy for pulsed power applications. In this article, two mathematical models using both actual and normalized (per-unit) parameters have been developed and simulated in LTspice, which is a powerful and a free tool to simulate electrical/electronic circuits. In this article, an efficient solver based on the flux and current equations is presented. The model has been validated against published results with both actual and per-unit parameters. It has been observed that for models with normalized parameters, the simulation time is significantly reduced. The validated model of the machine has been used to show the effects of nonlinear loads on the voltages and currents, in particular the reaction currents in the damper winding inside of the generator. In addition, the model has been used to study the effect of the RC time constant of the load on the peak power provided by a synchronous machine used to store energy for pulsed power applications.
AB - The high power and energy density of synchronous machines turn them into reliable sources of energy for pulsed power applications. In this article, two mathematical models using both actual and normalized (per-unit) parameters have been developed and simulated in LTspice, which is a powerful and a free tool to simulate electrical/electronic circuits. In this article, an efficient solver based on the flux and current equations is presented. The model has been validated against published results with both actual and per-unit parameters. It has been observed that for models with normalized parameters, the simulation time is significantly reduced. The validated model of the machine has been used to show the effects of nonlinear loads on the voltages and currents, in particular the reaction currents in the damper winding inside of the generator. In addition, the model has been used to study the effect of the RC time constant of the load on the peak power provided by a synchronous machine used to store energy for pulsed power applications.
KW - Modeling
KW - nonlinear circuits
KW - pulse power systems
KW - synchronous generator transient analysis
KW - synchronous machines
UR - http://www.scopus.com/inward/record.url?scp=85093932572&partnerID=8YFLogxK
U2 - 10.1109/TPS.2020.3017177
DO - 10.1109/TPS.2020.3017177
M3 - Article
AN - SCOPUS:85093932572
SN - 0093-3813
VL - 48
SP - 3435
EP - 3442
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
IS - 10
M1 - 9186303
ER -