Abstract
Background: This paper proposes a Nautilus isometric spiral vertical axis wind turbine, which is a new structure, and its aerodynamic performance and power generation performance need to be analyzed. Methods: A 3D model of the wind turbine was built and its aerodynamic performance was analyzed. Then the wind turbine power generation and grid-connected simulation platform was built by MATLAB/SIMULINK, and its power generation performance and subsequent grid connection were studied. Results: The basic parameters of the wind turbine were obtained. In order to improve efficiency, parameters such as pressure, torque, wind energy utilization rate and relative velocity of wind turbines with different blade numbers and different sizes were compared. In addition, by building a simulation platform for the power generation control system, the power generation characteristics and grid connection characteristic curves of the generator were obtained. Conclusions: When the number of blades is three and the ratio between the ellipse major axis and minor axis of the blade inlet is 0.76, the best efficiency of the wind turbine can be obtained. Application of the power generation control system used in this paper can achieve grid-connected operation of this wind turbine. It also confirmed that the Nautilus isometric spiral wind turbine has good performance and is worthy of in-depth research.
Highlights
Wind energy has become the focus of renewable energy research worldwide, and many countries use wind power as the basis for their long-term plans related to the environment [1,2]
References [4,5,6] carried out an in-depth analysis of the aerodynamic performance of wind turbines by numerical simulation methods, but these analyses can only provide a general understanding of the performance parameters of wind turbines, and cannot greatly improve the performance
In order to improveIn theorder utilization of wind and solve the problem of automatic problem of automatic startup, some researchers have proposed new vertical axis wind turbine models, startup, some researchers have proposed new vertical axis wind turbine models, and some researchers and some researchers have analyzed the aerodynamic performance of windthe turbines towind optimize the have analyzed the aerodynamic performance of wind turbines to optimize original turbine original wind turbine
Summary
Wind energy has become the focus of renewable energy research worldwide, and many countries use wind power as the basis for their long-term plans related to the environment [1,2]. Most researchers use numerical simulation methods to analyze the aerodynamic performance of vertical axis wind turbines. References [4,5,6] carried out an in-depth analysis of the aerodynamic performance of wind turbines by numerical simulation methods, but these analyses can only provide a general understanding of the performance parameters of wind turbines, and cannot greatly improve the performance. Combined with the understanding and analysis of the above literatures, the research content of this article is very extensive, and the specific analysis content is as follows: First, a 3D wind turbine model is constructed by finite element simulation software Basic parameters such as wind energy utilization and torque are analyzed. By comparing actual data with simulation data, the effectiveness and feasibility of the Nautilus isometric spiral wind turbine is verified
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