Technology Trend and Development Suggestions for Wind Power Efficient Utilization in China

Shi, Wenhui; Bai, Hong; Qu, Jixian; Wang, Weisheng; Qi-li, Huang

doi:10.15302/j-sscae-2018.03.008

Cited by 5 publications

(6 citation statements)

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“…For example, in China, wind power generation in 2023 reached 809 billion KWH, a year-on-year increase of 12.3%. The utilization rate of wind power has also increased yearly, but its random and intermittent characteristics have had a great impact on the power grid [1]. It has become urgent for the new generation of power grids to reduce the influence of the wind power grid connection by suppressing wind power fluctuation using key technology.…”

Section: Introductionmentioning

confidence: 99%

Strategy of Flywheel–Battery Hybrid Energy Storage Based on Optimized Variational Mode Decomposition for Wind Power Suppression

Hou,

Xu,

Tang

et al. 2024

Electronics

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The fluctuation and intermittency of wind power generation seriously affect the stability and security of power grids. Aiming at smoothing wind power fluctuations, this paper proposes a flywheel–battery hybrid energy storage system (HESS) based on optimal variational mode decomposition (VMD). Firstly, the grid-connected power and charging–discharging power of the HESS are determined based on the sliding average algorithm. Secondly, the VMD algorithm, optimized using long short-term memory (LSTM), is used to decompose the hybrid energy storage power (HESP) into a series of sub-modes with frequencies from low to high. Then, the state of charge of the battery energy storage system and the speed of the flywheel energy storage system are monitored in real time, and the primary power of the HESS is modified according to the rules formulated by fuzzy control. Finally, through a simulation example, it is concluded that the method meets the requirements of smoothing wind power fluctuations and gives full play to the characteristics of energy storage battery and flywheel energy storage to ensure the stable operation of the energy storage system. The method presented in this paper can provide a reference for HESP configuration and control operation strategy formulation.

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Section: Introductionmentioning

confidence: 99%

Strategy of Flywheel–Battery Hybrid Energy Storage Based on Optimized Variational Mode Decomposition for Wind Power Suppression

Hou,

Xu,

Tang

et al. 2024

Electronics

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show abstract

“…In recent years, China's wind power industry has entered into the stage of high-speed development, which has become an extremely dynamic part of the global renewable energy construction. The installation scale of wind power in China has been leading in the world for many consecutive years 1 , 2 . With the increasing installed capacity of wind power, the requirements for wind power towers are getting higher and higher.…”

Section: Introductionmentioning

confidence: 99%

Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube

Wen

Liu

Xiong

2023

Sci Rep

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With the control parameters of the wall thickness of the ball table and the thickness of the pressure plate of the ball table, four universal wrapped assembled joint models were designed for the research of stress performance via static loading test. The failure mode of the joint, the axial force–displacement curve of the web member, the equivalent stress distribution of the ball table and the pressure plate of the ball table were analyzed, and the ABQAUS finite element software was used for the analysis of parameter expansion of the specimen. The research results show that the failure modes of universally wrapped assembled joints can be divided into the buckling failure of the ball table and the strength failure of the material. The wall thickness of the ball table is the key parameter affecting the failure mode of the joints, and the thickness of the pressure plate of the ball table is the crucial parameter influencing the ultimate bearing capacity of the joints. The maximum equivalent stress of the pressure plate and the ball table at compression zone for all the joints is occurred at the side squeezed by the bolt ball, and the growth rate of the equivalent stress for the ball table at compression zone is more uniform than that at tension zone. According to the finite element analysis results, when the wall thickness of the ball table is greater than 7 mm, the thickness of the pressure plate of the ball table is greater than 16 mm, the growth rate of the ultimate bearing capacity of the joint is significantly decreased, therefore, it is recommended to use the wall thickness of 7 mm and the pressure plate thickness of 16 mm in the actual design of the project.

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“…In recent years, China's wind power industry has entered into the stage of high-speed development, which has become an extremely dynamic part of the global renewable energy construction. The installation scale of wind power in China has been leading in the world for many consecutive years [1][2] . Cone wind power tower and lattice wind power tower are the two most commonly used tower structures.…”

Section: Introductionmentioning

confidence: 99%

Research on Stress Performance of Universally Wrapped Assembled Joints of Lattice Wind Power Tower with Concrete-filled Steel Tube

Wen

Liu

Xiong

2022

Preprint

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With the control parameters of the wall thickness of the ball table and the thickness of the pressure plate of the ball table, four universal wrapped assembled joint models were designed for the research of stress performance via static loading test. The failure mode of the joint, the axial force-displacement curve of the web member, the equivalent stress distribution of the ball table and the pressure plate of the ball table were analyzed, and the ABQAUS finite element software was used for the analysis of parameter expansion of the specimen. The research results show that the failure modes of universally wrapped assembled joints can be divided into the buckling failure of the ball table and the strength failure of the material. The wall thickness of the ball table is the key parameter affecting the failure mode of the joints, and the thickness of the pressure plate of the ball table is the crucial parameter influencing the ultimate bearing capacity of the joints. The maximum equivalent stress of the pressure plate and the ball table at compression zone for all the joints is occurred at the side squeezed by the bolt ball, and the growth rate of the equivalent stress for the ball table at compression zone is more uniform than that at tension zone. According to the finite element analysis results, when the wall thickness of the ball table is greater than 7mm, the thickness of the pressure plate of the ball table is greater than 16mm, the growth rate of the ultimate bearing capacity of the joint is significantly decreased, therefore, it is recommended to use the wall thickness of 7mm and the pressure plate thickness of 16mm in the actual design of the project.

show abstract

Technology Trend and Development Suggestions for Wind Power Efficient Utilization in China

Cited by 5 publications

References 0 publications

Strategy of Flywheel–Battery Hybrid Energy Storage Based on Optimized Variational Mode Decomposition for Wind Power Suppression

Strategy of Flywheel–Battery Hybrid Energy Storage Based on Optimized Variational Mode Decomposition for Wind Power Suppression

Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube

Research on Stress Performance of Universally Wrapped Assembled Joints of Lattice Wind Power Tower with Concrete-filled Steel Tube

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