Читать книгу Smart Grid and Enabling Technologies - Frede Blaabjerg - Страница 17

Traditional power plants burn the fossil fuel to generate electricity therefore they contribute in significant amount of greenhouse gas emission to the environment. The crucial need to adopt power‐generation approaches that have fewer environmental impacts is an essential requirement for modern power grids, which means moving toward more renewable energy systems. Among renewable energies, sunlight (photovoltaics) is converted into electricity, wind kinetic energy is converted into electricity, water gravitational and kinetic energy is converted to electricity (hydro) [6]. Continuous technology development is used to convert renewable energies into electricity at increased efficiency and lower cost. Therefore, it is essential for the current power grid to efficiently accommodate a constant increase of fluctuating renewable energy sources.

Figure 1.1 The fundamentals of electric power system. Adapted from Ref Num [5].