Probabilistic analysis to solve the stability of a microgrid with uncertainty due to the presence of a wind turbine

ABSTRACT

Renewable energy, sometimes called ’clean energy,’ comes from natural processes or constantly renewed sources. For instance, wind and sunlight continue to move and shine, even though their availability depends on time and weather. In recent years, the high penetration of renewable energy sources, especially wind energy, has created new problems in power networks. One of the paramount concerns that we, as renewable energy specialists, must address is the inherent variability and unpredictability associated with the power generation of wind turbines. Using wind energy in microgrids with lower power and voltage levels can make them much more effective because wind energy is naturally variable. This issue specifies the need to perform a possible analysis of micro-grids that use wind energy to generate power. In this paper, the small signal stability of micro-grids will be studied under the influence of production uncertainty from wind energy. For this purpose, the method based on Gram-Charlier expansion is used as a possible numerical analysis method. Also, a method specific to micro-grids will be used to obtain the equations of the system’s state, which provides excellent flexibility for modelling new components.

KEYWORDS:

• Small signal stability
• probabilistic analysis
• microgrid
• uncertainty
• wind energy

Disclosure statement

No potential conflict of interest was reported by the author(s).