یازدهمین کنگره ملی سراسری فناوریهای نوین در حوزه توسعه پایدار ایران (نمایه ISC)
تاریخ برگزاری : 15 اسفند ماه 1400
تشخیص شدت اغتشاش مبتنی بر تخمین اینرسی
سامان محمودی
There are always different disturbances in the power grids. The efficacy of system generators to disturbance depends on the severity and location. Obviously, if the severity of disturbance is higher, system generators are more affected. Moreover, considering the location of its occurrence, the influence of the generators will be different. On the other hand, the presence of renewable energy sources(RES) such as solar photovoltaic(SPV), wind turbines (WT) has increased. As a result, power network becomes vulnerable and more prone to protection issues. Therefore, if the intensity of disturbance(IOD) is detected, it can be prevented from the damage to equipment of network and generators. In this paper, a solution to measure the intensity of disturbances in the power system has been proposed. The proposed method consists of two important factors, including inertia system and frequency variations. The inertia of each generator acts as a hard factor against disturbance. According to renewable energy sources that have low inertia or lack of inertia, it is necessary to know the inertia of each generator to detect the severity of the disturbance. So, the presented method is based on inertial estimation. In this method at first, the moment of the disturbance is detected, and based on the modified swing equation, the system inertia is estimated. Then, using estimated inertia and system frequency measurements, the disturbance intensity is determined for each generator. To study the presented method, a proposed single machine and IEEE 39-bus test system has been used.
inertia estimation, the intensity of disturbance, inverter-based generators, renewable energy sources, the start of disturbance
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, 1400 , تشخیص شدت اغتشاش مبتنی بر تخمین اینرسی , یازدهمین کنگره ملی سراسری فناوریهای نوین در حوزه توسعه پایدار ایران (نمایه ISC)
تاریخ برگزاری : 15 اسفند ماه 1400