基于自适应颤振的汽轮机调速系统迟缓率测定方法

Stagnant Rate Measurement of Turbine Governing System Based On Adaptive Chatter Algorithm

在对常规汽轮机调速系统迟缓率测定方法分析的基础上,提出了一种基于自适应颤振的汽轮机调速系统迟缓率测定方法。在搭建汽轮机调速系统迟缓率测定模型的基础上,对转速变化率对测定结果的影响进行了分析,进而提出了基于自适应颤振的迟缓率测定方法,并给出了颤振信号的选取规则。仿真实例结果表明,本方法可以根据调速系统死区大小的不同进行自适应调整,从而消除系统对测定结果的动态影响。

According to the determination analysis of the stagnant rate of the conventional steam turbine governing system,a new stagnant rate determination method based on the adaptive chatter algorithm was proposed. In view of the determination model of the stagnant rate for the turbine governing system,the impact of the rotation speed varia- tion rate on the measurement results was analyzed. And the stagnant rate determination method based on the adaptive chatter algorithm was proposed, and the selection rules for the signal of the chatter algorithm were given. The simula- tion results showed that this method could be adaptively adjusted depending on the size of the dead zone of the governing system, thereby eliminating the dynamic effects of the system on the measurement results.