A lead-lag compensator is introduced into a DVD focus system to increase the low-frequency gain and stable margin of the system. 在DVD聚焦系统中引入超前滞后补偿器以增加系统的低频增益和稳定裕量;
The simulation and experiment results show that the control object character is effectively improved and the low-frequency gain of the velocity loop is raised by the current loop. The tracking accuracy of the position loop in the control system is enhanced by about 10 times. 仿真和实验表明,电流环有效地改善了速度回路控制对象的特性,提高了速度回路的低频增益,控制系统位置回路的跟踪精度约有10倍的提高。
It is very effective to improve the dynamic performance of the power system in the inhibition of the low-frequency oscillations due to long-distance transmission and the increasing AVR gain. 它非常有效地改善了系统的动态性能,在抑制由于远距离输电以及AVR增益增大产生的低频振荡方面,已有很大成效。
Based on the method, the modeling, design and realization of the low-frequency near-field detecting sensors are accomplished easily to gain multi-dimensional information of the earth. 在该算法的基础上,本文还实现了低频近场探测前端的分析与设计,以获得多维度的地层信息。