为提高稳定计算的效率，对复杂的电力系统模型进行化简，以实现系统化降阶非常必要。
For improving the efficiency of power system stability analysis, it is necessary to study two time scale dynamic models of power systems and relevant model reduction.
以催化裂化装置为例，在七集总模型基础上化简得到催化裂化装置的过渡过程模型，并验证了其有效性。
The transition process model of fluid catalytic cracking unit (FCC) is achieved based on the seven lumped model, whose validity is verified by an example.
因而采用基于相关发电机识别的动态等值法对电力系统进行化简以克服上述问题。
So it is proposed in the paper a dynamic equivalence method based on coherent generators identification for system reducing.
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