Closed loop feedback adopts PID control rule to insure the stabilization of magnification times.

闭环反馈采用PID这种最广泛使用的控制规律，以保证放大倍数的稳定。

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Simultaneous stabilization with closed-loop poles is discussed in this paper. Necessary and sufficient conditions, as well as the controller design algorithms are given.

本文讨论了具有固定闭环极点的同时稳定问题，给出了该问题有解的充要条件和控制器的计算方法。

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Flywheel control system has two closed loops, the inner is voltage stabilization loop, other is current loop or is speed loop in different mode.

飞轮控制系统是个多回路系统，内回路为电压稳定回路，外回路在不同的工作模式下分别为电流回路和转速回路。

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