New electricity distribution network planning approaches for integrating renewable

Abstract

The electricity distribution business is experiencing a tremendous and challenging transformation. The use of renewable energy sources is moving generation from the top to the bottom of power systems, where traditionally only loads existed. Active demand, distribution energy-storage devices, and electric vehicles are going to change even more drastically the way the distribution system will be operated. Finally, several stakeholders will share the responsibility for system operation while they often pursue opposite objectives. In contrast to conventional approaches, modern distribution planning algorithms should emulate the new environment to produce expansion and strategic plans for guiding the evolution of system in times of financial restrictions. Probabilistic methods are necessary to capture the intrinsically stochastic behavior of renewable generation, whereas the multiobjective programming is recognized to be the most effective way for planning, transparently and objectively, the system evolution, taking into account\ud the multiple needs of different stakeholders. Finally, the integration of smart grid operation within planning algorithms is the key point for a proper distribution planning that allows integrating renewable resources and minimizing the cost for new electrical infrastructures

A Review of Optimal Planning Active Distribution System: Models, Methods, and Future Researches

“…But in the process of planning models, the simplistic representations in hour interval will barely affect the quality of planning solutions and have the ability to ease the calculating burden [10,20]. Therefore, it is widely accepted to take one hour as the elementary interval in the planning calculations.…”

“…This requires the definition of adequate timeseries models to be able to adequately represent the behaviors of active approaches in the planning calculations [10,20]. Therefore, the coordination of multiple time scales is an important problem to determine what extent operational aspects need to be modelled in planning models.…”

“…Thanks to the flexibility of power regulation, ESSs perform multiple important roles in ADSs, including peak load shaving and valley load filling [90], network upgrade deferral [93,105], frequency-voltage control [46], power quality and reliability improvement [20,60,78,101,104,105], alleviating the fluctuation of RDGs [46], obtaining arbitrage benefit [60,105], reducing energy losses [60], and providing a time varying power energy management, etc.…”

Hydrogen Storage Technologies for Smart Grid Applications

“…An important attribute of smart grids is their enhanced capability to receive increased penetration of renewables and distributed generation. However, they create specific technical challenges [10], such as the increase of short-circuit current, the bi-directional flow of energy, which requires advanced voltage control, differentiation for protection, and a change to the standard procedures for network planning. An important factor that facilitates the connection of renewables is the capability of smart grids to accommodate storage [11].…”

Hydrogen Storage Technologies for Smart Grids applications

“…An important attribute of Smart Grids is their enhanced capability to receive increased penetration of renewables and distributed generation. However, they create specific technical challenges [10] such as the increase of short-circuit current, the bi-directional flow of energy that requires advanced voltage control, differentiation for the protection and a change to the standard procedures for network planning. An important factor that facilitates the connection of renewables is the capability of smart grids to accommodate storage [11].…”