Simulation modelling and feature extraction to voltage compound disturbances by modified generalised S-transform
| Autor: | Liguo Zhang, Haitao Liu, Mu Yong, Shuqing Zhang, Chen Rongfei, Pan Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Disturbance (geology)
Computer science 020209 energy Feature extraction power supply quality Energy Engineering and Power Technology modified gst 02 engineering and technology steel plant main line time domain disturbance information Control theory Voltage sag 0202 electrical engineering electronic engineering information engineering Time domain transforms modified generalised s-transform S transform power quality analysis feature extraction 020208 electrical & electronic engineering General Engineering power system faults time-frequency analysis frequency domain disturbance information lcsh:TA1-2040 Frequency domain Line (geometry) composite voltage sag disturbance models lcsh:Engineering (General). Civil engineering (General) Software Voltage feature extraction method |
| Zdroj: | The Journal of Engineering (2019) |
| DOI: | 10.1049/joe.2018.9223 |
| Popis: | Voltage sag disturbances are the most important type of disturbance in power quality analysis and the extraction to voltage compound disturbances is more difficult. Here, four composite voltage sag disturbance models are constructed and the feature extraction method by modified generalised S-transform (GST) is given. By optimising the introduced r-parameters, it can obtain better time resolution and frequency resolution by the modified GST. Results of simulation experiments and the application in a steel plant main line show that both time domain disturbance and frequency domain disturbance information can be extracted with higher resolution. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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