By properly choosing the control gains, the output tends to a standstill while the other parts of the system oscillate in such a way as to counteract the harmonic disturbance.
通过选择合适的控制增益，即可在系统的其它部分仍存在振荡的情况下，可以消除谐波干扰，使系统的输出趋于收敛，达到稳定。
Sometimes the negative pressure control system of boiler in power plant contains a strong nonlinear sector such as dead-zone which makes the system oscillate.
火电厂炉膛负压控制系统中有时含死区类的强非线性环节，死区使该控制回路产生振荡，仅用常规pid控制器无法克服这一现象。
By the feed-back control of the duty ratio according to the oscillations of the movable plate, the movable plate can be controlled to oscillate in the proper phase and at the proper oscillation Angle.
通过根据可移动板的振动对占空比的反馈控制，可控制可移动板以在适当的相位和适当的振动角振动。
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