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A simple instant-estimation method for time-average quantities of single-phase power and application to single-phase power grid connection by inverter.
- Source :
-
Electrical Engineering in Japan . Apr2007, Vol. 159 Issue 2, p34-43. 10p. 2 Diagrams, 5 Graphs. - Publication Year :
- 2007
-
Abstract
- This paper presents and analyzes a new simple instant-estimation method for time-average quantities such as rms values of voltage and current, active and reactive powers, and power factor for single-phase power with the fundamental component of constant or nearly constant frequency by measuring instantaneous values of voltage and current. According to the analyses, the method can instantly estimate time-average values with accuracy of the fundamental frequency, and estimation accuracy of the power factor is about two times better than that of voltage, current, and powers. The instant-estimation method is simple and can be easily applied to single-phase power control systems that are expected to control instantly and continuously power factor on a single-phase grid by inverter. Based on the proposed instant-estimation method, two methods for such power control systems are also proposed and their usefulness is verified through simulations. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 159(2): 34–43, 2007; Published online in Wiley InterScience (<URL>www.interscience.wiley.com</URL>). DOI 10.1002/eej.20236 [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 04247760
- Volume :
- 159
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Electrical Engineering in Japan
- Publication Type :
- Academic Journal
- Accession number :
- 24192318
- Full Text :
- https://doi.org/10.1002/eej.20236