动态等值同步发电机参数计算方法、系统、存储器及设备
By directly calculating the power flow and dynamic parameters of the synchronous generator, the initial value of the power angle is obtained, and the internal resistance and reactance of the dynamic equivalent synchronous generator are calculated. This solves the problems of differences in dynamic equivalent calculation results and unclear physical meaning in the existing technology, realizes the unification of grid scale reduction and parameter aggregation, and improves simulation efficiency and result accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- STATE GRID ELECTRIC POWER RES INST
- Filing Date
- 2022-07-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing dynamic equivalent calculation methods suffer from inconsistencies in results and unclear physical meanings when considering the differences in power grid operating conditions and their impact on power angle stability. Furthermore, weighted calculation methods cannot effectively unify the reduction of power grid scale and the aggregation of synchronous generator parameters.
By directly calculating the power flow results and dynamic parameters of each synchronous generator in the co-tuning generator group, the initial values of the synchronous power angle, transient power angle, and subtransient power angle are obtained. Based on these values, the internal resistance and reactance of the dynamic equivalent synchronous generator are calculated, thus realizing the direct calculation of the parameters of the dynamic equivalent synchronous generator and avoiding weighted calculation.
It achieves the uniqueness and accuracy of dynamic equivalent calculation results, unifies the reduction of grid scale and the aggregation of synchronous generator parameters, and improves simulation efficiency and the clarity of the physical meaning of the results.
Smart Images
Figure CN115085266B_ABST