Effect of Wind Turbine Distributed Generation on the Power System Stability

Abstract

In order to keep up with the annual growth in demand for electric energy, distributed generation (DG) is becoming more and more prevalent. Connecting distributed generation (DG) to an established distribution system offers multiple advantages to stakeholders, including the utility, customers, and owner. DG can peak shave and fill troughs and deliver improved power quality and distribution system reliability. Nonetheless, there are a number of technological, financial, and legal considerations related to incorporating DG into current networks. One of the main problems with a DG's penetration into an existing distribution system is the instability and protection of the power supply. In addition to raising the system's fault level due to the DG's connections, DG causes the system to lose its radial power flow.  When a distribution system's condition changes, so does it short-circuit power. When certain generators within the distribution system are removed, there is also a shift in short-circuit power. As a result, new protection strategies for utility distribution networks as well as DG have been created recently, however, the problem has not been adequately resolved.  This study examines how distributed generation (DG) affects the stability of an electrical power system in a wind turbine distribution system. The effects of distributed generation (DG) on the stability of the low-voltage power system are examined by comparing the obtained results with those of the typical situation.