| Autor: |
Paulo Márcio da Silveira, T. C. O. Carvalho, M. A. Severo Mendes, Carlos A. Duque, Paulo F. Ribeiro |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
2014 16th International Conference on Harmonics and Quality of Power (ICHQP). |
| DOI: |
10.1109/ichqp.2014.6842797 |
| Popis: |
Traditional analysis of waveform distortion assumes balanced and steady-state conditions. However, due to the widespread use of power electronics, non-linear loads and a multiplicity of harmonic-producing loads, power signals are becoming increasingly distorted and time varying. This complex scenario demands appropriate analysis. This paper illustrates the visualization of power quantities under time-varying conditions based on the defitions of IEEE Standard 1459. The Sliding Window Recursive Fourier Transform is used to decompose real signals in time-varying harmonics and subsequently it calculates the main parameters as function of time. These include symmetrical components, total harmonic distortions and apparent power. This visulization can lead to a better understanding of the nature of power signals under time-varying conditions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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