second derivation control 二次导数控制 ; 按二次导数调节
A constraining facet is a construct that you can use to control the value space of simple type during derivation.
约束facet是一种构造，可以在派生期间使用它们控制简单类型的值空间。
Through a rational derivation, nonlinear mathematical model of electro-hydraulic position control system is built up. The system dynamic and stability analysis is obtained with the use of the model.
通过合理的推导，建立了电液伺服位置控制系统的非线性数学模型，利用该模型对系统进行相关的动态和稳定性分析。
The control parameters and regulation pattern is set up according to the power flow control problem. A detail derivation is made on the equivalent injection power equation of several FACTS devices.
针对潮流控制确定了FACTS的控制参数和调节模式，对几种FACTS装置的等效注入功率模型进行了详细推导。
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