Читать книгу Active Electrical Distribution Network - Группа авторов - Страница 63

Increasing deployment of distributed generation units in the distribution network brings new challenges, such as voltage fluctuations, power quality hampering, and reverse power flows. The sudden changes in electric power generation from the DGs due to climate conditions or their internal glitch might cause high-voltage variations. In such critical scenarios both low load requirements and high power contributions from renewable sources possibly results in voltage, power, and load angle limit violations. To ride through this state of a highly approved approach is the disconnection of such units or curtailment of power generation, which may lead to several disadvantages, such as a sudden reactive power imbalance, harmonic distortion, voltage instability, and malfunction of protection devices [21]. Thus the DG insertion has proved to be a boon accompanied with many technical challenges that are definitely required to be analyzed in order to enjoy all the benefits of DG insertion in the distribution networks.