دانلود ترجمه مقاله یک مدل ماشین سنکرون در حوزه فاز با ماتریس کندوکتانس معادل ثابت برای راه حل نوع EMTP

In this paper, we have presented a new PD synchronous machine model for EMTP-type solution. The new model has a constant equivalent conductance matrix in the discrete-time machine–network interface equation, which is achieved by eliminating the dynamic saliency existing in the equivalent resistance matrix of the original PD model. This constant equivalent conductance matrix is desirable since it avoids the refactorization of the network conductance matrix at every time step. This feature may make the new model very attractive for possible use in various EMTP packages. A case study of salient-pole synchronous machine has been performed to demonstrate the effectiveness of the proposed constant equivalent conductance PD model. The large time step study has shown that the numerical accuracy of the proposed model is well preserved compared with the original PD model and represents significant improvement over the conventional qd models implemented in commercial EMTP-type software packages such as EMTP-RV.