WIND POWER GENERATOR, ITS CONTROL METHOD, AND MODIFICATION METHOD

• Main Authors: YOSHIKAWA MASATOSHI, KAKUYA HIROMU
• Format: Patent
• Language: English; Japanese
• Published: 21.02.2019
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

To solve the problem such as mechanical consumption and electric power generation performance deterioration.SOLUTION: A wind power generator comprises: a rotor for rotating by receiving wind; a nacelle for rotatably supporting the rotor; a tower for supporting the nacelle so that it can rotate in a yawing motion; an adjusting device for adjusting the yaw of the nacelle based on the yaw control command; and a control device for determining the yaw control command to be sent to the adjusting device. The control device includes yaw-angle calculation means for calculating a yaw angle from the wind direction measured by the wind direction measuring means and the direction of the rotor; and yaw control instruction generation means for determining a yaw control command based on the yaw angle, the yaw control start threshold value and the yaw control end threshold value, in which start threshold value and completion threshold value are identical in polarity and the completion threshold value is a smaller value than the start threshold value.SELECTED DRAWING: Figure 3 【課題】機械的消耗、および発電性能低下という問題を解決すること。【解決手段】風を受けて回転するロータと、ロータを回転可能に支持するナセルと、ナセルをヨー回転可能に支持するタワーと、ヨー制御指令に基づいてナセルのヨーを調整する調整装置と、調整装置に送るヨー制御指令を定める制御装置とを備える風力発電装置であって、制御装置は、風向測定手段によって測定された風向とロータの方向からヨー角度を算出するヨー角度計算手段と、ヨー角度とヨー制御開始閾値とヨー制御終了閾値とに基づきヨー制御指令を定める制御指令作成手段を備え、開始閾値と終了閾値は極性が同じで終了閾値は開始閾値よりも小さな値であることを特徴とする風力発電装置。【選択図】図３