On the basis of power differential method, a novel principle of transformer protection using generalized instantaneous power is presented.
在差有功法的基础上，提出一种利用广义瞬时功率实现变压器保护的新原理。
Then this paper simplified the differential eguation contraposing the cooling tower which is a special structure, and adopted the power series method to solve the differential eguation.
随后针对冷却塔这个特殊结构，把微分方程进行了简化，并且采用幂级数解法解答出自振微分方程。
By combining the continuous power flow method with improved differential evolution calculation, the static voltage stability margin is found via optimal grouping of relevant variables.
在连续潮流法的基础上，结合经过改进的差异进化算法，通过对变量的组合优化，求取系统静态电压稳定安全裕度。
This method basically consists in formulating the power flow problem as a set of autonomous ordinary differential equations.
这个方法基本上是由一组自主常微分方程的功率流问题，制定。
This method basically consists in formulating the power flow problem as a set of autonomous ordinary differential equations.
这个方法基本上是由一组自主常微分方程的功率流问题，制定。
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