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Report on the passive control of horizontal axis wind turbines

Technical Report:

Abstract

The work presented in this report is concerned with the passive control of power and loads on horizontal axis wind turbines. A review of machines which use passive control techniques is presented along with an exploration of their success or failure in practice. A mathematical model of a wind turbine has been constructed and each of the possible ways to use the forces acting on the wind turbine has been investigated in a systematic manner. In this way a very broad range of possible passive control schemes has been considered. These include methods which use passive pitching to both stall and fine pitch. blade coning and drive train flexibility. Both fixed speed and variable speed operation have been considered. The characteristics of the power control and of loads at the rotor and the drive train have been established. These have been compared with those for a typical active pitch controlled machine. Static and dynamic characteristics have been considered. An assessment of the likely complexity of each type of system has been made. This is compared to the complexity inherent in an active, pitch controlled machine and a stall regulated machine. (author).
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
ETSU-WN-6043
Reference Number:
SCA: 170602; PA: GB-92:052498; SN: 93000922742
Resource Relation:
Other Information: PBD: 1992
Subject:
17 WIND ENERGY; HORIZONTAL AXIS TURBINES; CONTROL SYSTEMS; DYNAMIC LOADS; MATHEMATICAL MODELS; INCLINATION; TURBINE BLADES; VELOCITY; AERODYNAMICS; 170602; TURBINE DESIGN AND OPERATION
OSTI ID:
10115649
Research Organizations:
Garrad, Hassan and Partners, Bristol (United Kingdom)
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Other: ON: DE93756633; TRN: GB9252498
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
GB
Size:
133 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Corbet, D C, and Morgan, C A. Report on the passive control of horizontal axis wind turbines. United Kingdom: N. p., 1992. Web.
Corbet, D C, & Morgan, C A. Report on the passive control of horizontal axis wind turbines. United Kingdom.
Corbet, D C, and Morgan, C A. 1992. "Report on the passive control of horizontal axis wind turbines." United Kingdom.
@misc{etde_10115649,
title = {Report on the passive control of horizontal axis wind turbines}
author = {Corbet, D C, and Morgan, C A}
abstractNote = {The work presented in this report is concerned with the passive control of power and loads on horizontal axis wind turbines. A review of machines which use passive control techniques is presented along with an exploration of their success or failure in practice. A mathematical model of a wind turbine has been constructed and each of the possible ways to use the forces acting on the wind turbine has been investigated in a systematic manner. In this way a very broad range of possible passive control schemes has been considered. These include methods which use passive pitching to both stall and fine pitch. blade coning and drive train flexibility. Both fixed speed and variable speed operation have been considered. The characteristics of the power control and of loads at the rotor and the drive train have been established. These have been compared with those for a typical active pitch controlled machine. Static and dynamic characteristics have been considered. An assessment of the likely complexity of each type of system has been made. This is compared to the complexity inherent in an active, pitch controlled machine and a stall regulated machine. (author).}
place = {United Kingdom}
year = {1992}
month = {Dec}
}