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최한순(Hansoon Choi),윤태준(Tai Jun Yoon),남윤수(Yoonsu Nam) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The yaw control, a major part of the wind turbine, is closely related to the efficiency of electric powerproduction and the mechanical loads. The yaw error, inconsistency of wind and nacelle direction, causes not only the decrease of power output but also the shorter expectancy due to larger fatigue load than when having the wind in the face. This paper investigates the characteristics of the active yaw control system, basic principle, and mechanical loads around yaw axis.
라요한(Yohan La),최한순(Hansoon Choi),윤태준(Taejoon Yoon),김현건(Hyungun Kim),남윤수(Yoonsu Nam) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.5
This paper is about real-time simulation of wind turbine. Wind turbine is controlled using GH Bladed Hardware Test Module and External control. First, this paper explains that default configuration of Hardware interface. Next, mention about Preparation and Concepts for driving Bladed Hardware Test. The control system consists of torque control and pitch control. I/O port between Bladed Hardware Test and external control connection to the controls. Finally, some simulation results for external control control to a MW wind turbine are discussed in this paper.
MW 규모 풍력 터빈의 기계적 하중 특성 해석 및 제어
남윤수(Yoonsu Nam),최한순(Hansoon Choi) Korean Society for Precision Engineering 2010 한국정밀공학회지 Vol.27 No.9
A multi-MW wind turbine is a huge mechanical structure, of which the rotor diameter is more or less than 100 m. Rotor blades experience unsymmetric mechanical loads caused by the interaction of incoming wind with the tower and wind shear effect. These mechanical loads are transferred to the entire structure of the wind turbine and are known as the major reasons for shortening the life span of the wind turbine. Therefore, as the size of wind turbine gets bigger, the mitigation of mechanical loads becomes more important issue in wind turbine control system design. In this paper, a concept of an individual pitch control(IPC), which minimizes the mechanical loads of rotor blades, is introduced, and simulation results using IPC are discussed.
김정기(Jeonggi Kim),남윤수(Yoonsu Nam),최한순(Hansoon Choi),조장환(Janghwan Cho) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.5
This paper introduces a methodology for the power control of a wind turbine. A baseline control law are about variable speed variable pitch control of a MW-class wind turbine. For the baseline control, control strategy. and control algorithm in operation regions are introduced. The baseline control is applied to the power curve tracking control. And a numerical dynamic model of wind turbine was derived from simplified drive train model. And finally, simulation results using torque control and pitch control are discussed.