Comparative characteristics of main methods for dynamic estimation of frequency and magnitude parameters in power systems

被引：2

作者：

Asnin, L ^{[1
]}

Backmutsky, V ^{[1
]}

Gankin, M ^{[1
]}

机构：

[1] Acad Inst Technol, Holon, Israel

来源：

22ND CONVENTION OF ELECTRICAL AND ELECTRONICS ENGINEERS IN ISRAEL, PROCEEDINGS | 2002年

关键词：

D O I：

10.1109/EEEI.2002.1178309

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

An accurate dynamic estimation of frequency and magnitude parameters (actual power -line frequency and actual power - line voltages or currents) is very important for different applications in power systems, such as frequency and magnitude relay protection, harmonics and quality of power in transient regimes, especially- for local power systems with external UPS (Uninterruptible Power Supply) synchronization (for example, by diesel generator). Investigated methods and algorithms are modifications of OPD (Orthogonal Phasor Decomposition) and IZC (Integrating Zero Crossing) for frequency estimation and modifications of DFT (Discret Fourier Transform) with interpolation in time or frequency domain, or alternatively - with beforehand tuned prefilters for magnitude ( harmonics) estimation. Some aspects of choice and optimization of above DSP (Digital Signal Processing) methods and algorithms were described before in publications [1-3], but without comparison of their characteristics, which are the main subject of the proposed publication. Obtained simulation results can be used for improvement of chosen algorithms and their real time applications.

引用

页码：35 / 38

页数：4

共 4 条

[1]

ASNIN L, 2002, P 3 C EL CONTR MAY E, P99

[2]

ASNIN L, 2001 IEEE PORT POW T

[3] A NEW NUMERIC TECHNIQUE FOR HIGH-SPEED EVALUATION OF POWER-SYSTEM FREQUENCY [J].