The functional relationship between average wind speed and peak speed ratio is Cp=0.5*(1-cos0)*(R/A)2*(B/2) (sin0).
Detailed information:
Definition of tip speed ratio
Tip speed ratio is the TSR ratio between the linear speed of the blade tip and wind speed. Another important parameter indicating the performance of wind turbines. In the formula, ω is the angular speed of rotation of the wind turbine, rad/s; n is the rotation speed of the wind turbine, r/min R is the radius of the wind turbine rotor, m; Tip speed ratio represents the operating speed of the wind turbine at a certain wind speed, so it is also called high speed coefficient.
The power coefficient CP and the torque coefficient CT of wind turbines of different structural typesrels have some relationship with the TSR tip speed ratio, as shown in Figure 1 below. It can be seen that Darieux horizontal axis propeller and vertical axis wind turbines have high power coefficients, low torque coefficients and high operating speeds, and are suitable for wind power generation, while multi-blade wind turbines horizontal axis have small wind turbines; high power coefficients, high torque coefficients and are suitable for wind power generation. The operating speed is low, so it is not suitable for wind power generation, but it is suitable for wind water lifting.
Classification of blade tip speed ratio
According to the difference in blade tip speed ratio, we can divide wind turbines into two categories : Slow-speed wind turbines and fast-ratio wind turbines.
The speed ratio maximum of the wind turbine at slow speed is 2.5. The peak speed ratio of all wind turbines operating on the resistance principle is less than 1, which means that they are slow speed wind turbines. Wind turbines that operate on the buoyancy principle are also called slow-speed wind turbines if their tip speed ratio is between 1 and 2.5. The peak speed ratio of Western wind turbines and some wind pumps is about 1, while the peak speed ratio of Bock wind turbines and Dutch wind turbines is about 2.
Wind turbines Fast-ratio refer to wind turbines that operate on the buoyancy principle and their peak speed ratio is between 2.5 and 15. Almost all modern wind turbines (one to three blades) fall into this category. The wind energy utilization coefficient Cp is the efficiency of the wind turbine in converting energywind energy into mechanical energy. It is related to wind speed, blade rotation speed, blade diameter and blade tilt angle, and is a function of the blade tip speed ratio. and the blade inclination angle.
Yes, the answer is correct. It is used to describe the wind energy characteristics of wind farms. It is related to the top speed ratio and lean angle. the power output of a single wind turbine in steady state. The ratio of wind energy flowing through the swept area of the wind turbine. The theoretical power coefficient of the wind turbine, 0.593, represents the maximum efficiency of the wind turbine.