提出了一种改进的桨距角控制方案——将系统频率偏差信号引入桨距角控制系统。
An improved pitch control scheme is presented by introducing a frequency deviation signal into the control system.
结合AGC分级控制的特点，按频率偏差等级设定频率偏差系数。
Based on the character of AGC hierarchical control, it presents different bias Settings according to diverging frequency grade.
为此，在频率控制领域首次引入了最佳逼近算法，它能给出频率偏差的最小-最大解。
Pell equation and its solution are introduced and also some theorems about minimum solutions of Pell equation are given out.
为此，在频率控制领域首次引入了最佳逼近算法，它能给出频率偏差的最小-最大解。
Pell equation and its solution are introduced and also some theorems about minimum solutions of Pell equation are given out.
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