Naval ship as well as aerospace power systems are incorporating a greater degree of power electronic switching sources and loads. Although these power electronics based components provide exceptional performance, they are prone to instability due to their high efficiency and constant power characteristics which lead to negative impedance. When designing these systems, integrators must consider the impedance versus frequency at a system interface (which designates source and load). Stability criterions have been developed in terms of source and load impedance for both dc and ac systems and it is often helpful to have techniques for impedance measurement. For dc systems, the measurement techniques have been well established. This paper suggests several methods for measuring ac impedance including utilization of power converters, induction machines and chopper circuits. Simulation results on an example ac system demonstrate the effectiveness of the proposed methods
K. Corzine et al., "AC Impedance Measurement Techniques," Proceedings of the IEEE International Conference on Electric Machines and Drives (2005, San Antonio, TX), Institute of Electrical and Electronics Engineers (IEEE), May 2005.
The definitive version is available at https://doi.org/10.1109/IEMDC.2005.195972
IEEE International Conference on Electric Machines and Drives (2005: May 15, San Antonio, TX)
Electrical and Computer Engineering
Keywords and Phrases
Impedance measurement; Power electronics; Marine vehicles; Aerospace electronics; Power system measurements; Frequency; Stability criteria; Power system stability; Measurement techniques; Power measurement
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2005 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
15 May 2005