Analysis on SSR frequency components by studying two-dimensional modulation of synchronous generator's flux linkage
| Autor: | Juan Li, Xiaoming Yuan, Meiqing Zhang, Zhihao Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
stators
subsynchronous resonance amplitude modulation synchronous generators asynchronous generators Bessel functions frequency modulation transmission network calculations long-distance power transmission network induction generator effect Bessel function AC transmission system practical power system multiple frequency components super-synchronous frequency components mechanical system dynamics stator current frequency component flux linkage electric system dynamics torsional interaction IGE sub-synchronous resonance problem large-scale power transmission network HVDC transmission technology synchronous generator two-dimensional modulation SSR frequency components Engineering (General). Civil engineering (General) TA1-2040 |
| Zdroj: | The Journal of Engineering (2019) |
| Druh dokumentu: | article |
| ISSN: | 2051-3305 |
| DOI: | 10.1049/joe.2018.8593 |
| Popis: | As China's AC transmission system with series capacitor and HVDC transmission technology are widely used in long-distance and large-scale power transmission network, sub-synchronous resonance (SSR) problem becomes more prominent. This paper studied induction generator effect (IGE) and torsional interaction (TI) of synchronous generator by focusing on amplitude and frequency modulation of synchronous generator's flux linkage. IGE involves only electric system dynamics, which will only cause amplitude modulation of flux linkage, resulting in one or two frequency component added in stator current of non-salient pole synchronous generator (NPSG) or salient pole synchronous generator (SPSG) respectively. TI involves both electric and mechanical system dynamics, which will cause both amplitude and frequency modulation of flux linkage, resulting in multiple sub and super-synchronous frequency components added in stator current by means of Bessel function. This result will provide a new reference to understand the SSR phenomena containing multiple frequency components in practical power system. The IEEE first benchmark model is used to demonstrate the accuracy of the analysis results. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|
Plný text