{"title":"Transient Characteristics and Operation Regulation of Grid-Connected Variable Speed Pumped Storage-Wind-Solar Hybrid Power System","authors":"Yanhao Li, Fanchao Song, Wencheng Guo","doi":"10.1002/ese3.2013","DOIUrl":null,"url":null,"abstract":"<p>This article investigates the transient characteristics and operation regulation of grid-connected variable speed pumped storage (VSPS)-wind-solar hybrid power system (HPS). Firstly, the model of grid-connected VSPS-wind-solar HPS is established. Secondly, based on a calculating example, the transient characteristics of grid-connected VSPS-wind-solar HPS are analyzed by using numerical simulation. Then, the effects of grid parameters and capacity ratios on transient characteristics of the grid-connected VSPS-wind-solar HPS are revealed. Finally, the regulation of governor and frequency converter for the grid-connected VSPS-wind-solar HPS is illuminated. The results indicate that the influence of wind speed disturbance and light intensity disturbance on the whole grid-connected VSPS-wind-solar HPS can be effectively reduced by using the pitch angle controller and VSPS unit, and the overshoot of power grid frequency does not exceed 0.1%, and the adjustment time does not exceed 4.36 s. Compared to the isolated VSPS power station, the regulation quality of the transient characteristics of grid-connected VSPS power station is worse. The coupling effect between the wind power station and power grid is weak. The increase of the capacity ratios of VSPS power station and wind power station has both advantages and disadvantages for the transient process of rotational speed of pump-turbine. The increase of the capacity ratio of solar power station is disadvantageous for the transient process of rotational speed of pump-turbine. The regulation effect of the control link PI-1 plays a dominant role in the frequency converter. The effect of the parameters for the control links of frequency converter on the regulation quality of grid-connected VSPS-wind-solar HPS is weaker than that of governor.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 1","pages":"416-433"},"PeriodicalIF":3.5000,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2013","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy Science & Engineering","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ese3.2013","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
This article investigates the transient characteristics and operation regulation of grid-connected variable speed pumped storage (VSPS)-wind-solar hybrid power system (HPS). Firstly, the model of grid-connected VSPS-wind-solar HPS is established. Secondly, based on a calculating example, the transient characteristics of grid-connected VSPS-wind-solar HPS are analyzed by using numerical simulation. Then, the effects of grid parameters and capacity ratios on transient characteristics of the grid-connected VSPS-wind-solar HPS are revealed. Finally, the regulation of governor and frequency converter for the grid-connected VSPS-wind-solar HPS is illuminated. The results indicate that the influence of wind speed disturbance and light intensity disturbance on the whole grid-connected VSPS-wind-solar HPS can be effectively reduced by using the pitch angle controller and VSPS unit, and the overshoot of power grid frequency does not exceed 0.1%, and the adjustment time does not exceed 4.36 s. Compared to the isolated VSPS power station, the regulation quality of the transient characteristics of grid-connected VSPS power station is worse. The coupling effect between the wind power station and power grid is weak. The increase of the capacity ratios of VSPS power station and wind power station has both advantages and disadvantages for the transient process of rotational speed of pump-turbine. The increase of the capacity ratio of solar power station is disadvantageous for the transient process of rotational speed of pump-turbine. The regulation effect of the control link PI-1 plays a dominant role in the frequency converter. The effect of the parameters for the control links of frequency converter on the regulation quality of grid-connected VSPS-wind-solar HPS is weaker than that of governor.
期刊介绍：
Energy Science & Engineering is a peer reviewed, open access journal dedicated to fundamental and applied research on energy and supply and use. Published as a co-operative venture of Wiley and SCI (Society of Chemical Industry), the journal offers authors a fast route to publication and the ability to share their research with the widest possible audience of scientists, professionals and other interested people across the globe. Securing an affordable and low carbon energy supply is a critical challenge of the 21st century and the solutions will require collaboration between scientists and engineers worldwide. This new journal aims to facilitate collaboration and spark innovation in energy research and development. Due to the importance of this topic to society and economic development the journal will give priority to quality research papers that are accessible to a broad readership and discuss sustainable, state-of-the art approaches to shaping the future of energy. This multidisciplinary journal will appeal to all researchers and professionals working in any area of energy in academia, industry or government, including scientists, engineers, consultants, policy-makers, government officials, economists and corporate organisations.
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