Effects of Yaw Error on Wind Turbine Running Characteristics Based on the Equivalent Wind Speed Model

Shuting Wan, Lifeng Cheng and Xiaoling Sheng
Additional contact information
Shuting Wan: School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
Lifeng Cheng: School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
Xiaoling Sheng: School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China

Energies, 2015, vol. 8, issue 7, 1-16

Abstract: Natural wind is stochastic, being characterized by its speed and direction which change randomly and frequently. Because of the certain lag in control systems and the yaw body itself, wind turbines cannot be accurately aligned toward the wind direction when the wind speed and wind direction change frequently. Thus, wind turbines often suffer from a series of engineering issues during operation, including frequent yaw, vibration overruns and downtime. This paper aims to study the effects of yaw error on wind turbine running characteristics at different wind speeds and control stages by establishing a wind turbine model, yaw error model and the equivalent wind speed model that includes the wind shear and tower shadow effects. Formulas for the relevant effect coefficients T c , S c and P c were derived. The simulation results indicate that the effects of the aerodynamic torque, rotor speed and power output due to yaw error at different running stages are different and that the effect rules for each coefficient are not identical when the yaw error varies. These results may provide theoretical support for optimizing the yaw control strategies for each stage to increase the running stability of wind turbines and the utilization rate of wind energy.

Keywords: wind turbine; yaw error; running characteristics; equivalent wind speed model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (15)

Downloads: (external link)
https://www.mdpi.com/1996-1073/8/7/6286/pdf (application/pdf)
https://www.mdpi.com/1996-1073/8/7/6286/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:8:y:2015:i:7:p:6286-6301:d:51639

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().