安全域的数学描述使注入功率不确定性和电动机负荷比例不确定性的计及变得简便。
The practical mathematic description of dynamic security region makes it easy to take account of the uncertainties of power injections and motor loads proportion.
水泵变频时电动机损耗占水泵总功耗的比例较大。
Motor loss takes a large proportion in total power of pump when variable frequency pump is used.
实验结果表明，直线电动机的伺服刚度只受位置环比例增益的影响较大，而其它的控制参数对伺服刚度幅值影响不大。
The result presents that the servo rigidity is more influenced by proportion plus of position loop than by other parameters.
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