Intelligent control of gravity energy storage systems to enhance their utilization

Luo, XianZhe (2024) Intelligent control of gravity energy storage systems to enhance their utilization. Master dissertation/thesis, UTAR.

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Abstract

As the demand for energy grows, the significance of energy storage technology increases. However, current technology lacks flexibility and is only available as a separate operation in the power grid. In the future, energy storage technology will move towards a hierarchical approach. Energy storage will no longer be considered as a separate entity, rather it will be distributed according to the size of power generation and transmitted through the grid to store any excess power. This project focuses on the analysis of a new gravity energy storage technology, focusing on its charging, discharging and grid connection, in order to provide guidance for its future operation in the combined power grid. In order to achieve the goal, the project takes wind and solar power generation samples as the main body, takes the grid-connected stability as the goal, models and simulates the gravity energy storage grid-connected system through the PID intelligent control system, and obtains the grid-connected grid voltage through Smulation. In this simulation, a bidirectional converter is used in the circuit design, and in this system, it is possible to store energy and release power at the sametimeFinally, through the simulation design, a stable grid-connected voltage of the grid is obtained.

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