Three-phase impedance measurement for system stability analysis
- 1 June 2013
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The purpose of this work is to review three-phase impedance measurement methods, with an emphasis on practical issues such as instruments required, form and level of injection, background harmonics, and measurement noise. In general, measuring three-phase impedance requires special frequency response analyzers that are capable of injecting two independent voltage or current signals at a sufficiently high level compared to the operational voltage and current of the system, and measuring three-phase voltages and currents simultaneously. Since such instruments are not commercially available and are difficult to construct in general, this paper discusses measurement techniques using existing commercial frequency response analyzers, power amplifiers and injection transformers. Different methods to inject a voltage perturbation into three-phase circuits are reviewed and applied to determine the small-signal impedance in both positive and negative sequences, with or without coupling. The proposed methods allow to measure sequence impedances over a wide frequency range for stability analysis and control design of three-phase power electronic systems.Keywords
This publication has 15 references indexed in Scilit:
- Three-phase AC system impedance measurement unit (IMU) using chirp signal injectionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- Modeling and mitigation of harmonic resonance between wind turbines and the gridPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011
- Input Impedance Modeling of Multipulse Rectifiers by Harmonic LinearizationIEEE Transactions on Power Electronics, 2009
- Small-Signal Methods for AC Distributed Power Systems–A ReviewIEEE Transactions on Power Electronics, 2009
- An Adaptive Nonlinear Controller for DFIM-Based Wind Energy Conversion SystemsIEEE Transactions on Energy Conversion, 2008
- A Digital Controlled PV-Inverter With Grid Impedance Estimation for ENS DetectionIEEE Transactions on Power Electronics, 2005
- A Method for Real-Time, Wide-Band Identification of the Source Impedance in Power SystemsIEEE Transactions on Instrumentation and Measurement, 2005
- Complete characterization of utilization-voltage power system impedance using wideband measurementIEEE Transactions on Industry Applications, 1997
- Dynamic on‐line measurement of equivalent parameters of three‐phase systems for harmonic frequenciesEuropean Transactions on Electrical Power, 1996
- Simplified three-phase transformer model for electromagnetic transient studiesIEEE Transactions on Power Delivery, 1995