Harmonics propagation and interaction evaluation in small-scale wind farms and hydroelectric generating systems. (October 2022)

• Record Type: Journal Article
• Authors: Zhao, Ziwen; Mahmud, Md. Apel; Campana, Pietro Elia; Hredzak, Branislav; Luo, Jie; Chen, Diyi; Xu, Beibei
• Is Part Of: ISA transactions. Volume 129(2022)Part B
• Page Start: 334
• Page End: 344
• Publication Date: 2022-10
• Subjects: Hydroelectric generating system HGS -- Wind farm WF -- Doubly fed induction generator DFIG -- Total voltage harmonic distortion THDu -- Total current harmonic distortion THDi -- hth harmonic voltage inclusion rate HRUh -- hth harmonic current inclusion rate HRIh -- Continuous wavelet transform CWT; Hydro-wind complementary generation system -- Harmonic propagation -- Interaction performances -- Complementation and stand-alone; Engineering instruments -- Periodicals; Engineering instruments; Periodicals; Electronic journals; 629.805
• DOI: 10.1016/j.isatra.2022.02.050
• Languages: English
• ISSNs: 0019-0578

Abstract

Abstract: The harmonics exacerbated by the integration of distributed energy such as wind power has been extensively studied. However, the interaction and propagation mechanism between harmonic sources in the hydro-wind complementary generation system are still not clear. To tackle this challenge, the presented study establishes the hydro-wind complementary generation system model and explores the harmonics propagation and interaction in all components. Then three operation mode of complementary system (scenario 1: stand-alone Hydroelectric Generating System, scenario 2: stand-alone Wind Farm (WF) and scenario 3: complementary generation system) are selected. The results demonstrate that the integration of HGS diminishes the harmonic at DFIG side but at the grid side. In complementary generation system, the THD u rises but the corresponding THD i declines due to the regulation of power grid. Furthermore, the odd harmonics interactions analysis reveal that the doubly-fed induction generator's (DFIG) side and the stator's side are the two high-risk sources in the complementary generation process. The presented results provide a basis for power quality evaluation of hydro-wind complementary generation system. Highlights: Exploit the effect of harmonic propagation on safety of multi-energy power grid. Reveal the relationship of harmonic property and hybrid grid with/without wind farm. Present a new model of power system integrating with wind farm and hydropower system. The implemented methodology provides insights for reliable operations of energy mix.