The second contribution is analysis and impedance measurement of single-phase ac power systems. In this analysis, a fictitious phase signal is created and combined with the original single-phase signal to build synchronous reference frame quantities. After this transformation, the same criteria used in the three-phase systems can be applied to the single-phase ac system.6. LABORATORY VALIDATION 6.1. Induction Motor Drive System In order to validate the proposed method, a laboratory prototype of system shown in Figure 10 was assembled and tested together with a line-to-line chopper injection circuit .
|Title||:||AC/DC Power System Small-signal Impedance Measurement for Stability Analysis|
|Publisher||:||ProQuest - 2009|