Читать книгу Smart Solar PV Inverters with Advanced Grid Support Functionalities - Rajiv K. Varma - Страница 30

Events of cloud passing cause frequent and large changes in the output of solar PV farms [22]. EPRI has made available two YouTube videos depicting the impacts of solar variability on PV power production and voltages along a distribution feeder [33, 34]. Varying wind conditions cause similar changes in power output from wind farms. This leads to voltage fluctuations on the distribution feeder, the magnitude of which is influenced by system strength and the X/R ratio of the interconnecting feeder at the PCC. Such variations in voltage profile adversely influence the operation of voltage‐sensitive loads such as induction motors and process control equipment.