UCLA

The increasing demand for clean and sustainable energy sources necessitates effective energy storage solutions. This thesis proposes a decentralized approach to energy storage by utilizing high-density rolled polymer-based capacitors. The objective is to address the intermittent nature of renewable energy generation and develop a storage system that is affordable, sustainable, and easily deployable. Conventional capacitors typically do not exhibit high energy capacity. Therefore, this research emphasizes optimizing surface area, implementing high voltage storage capabilities (up to 3 kV), and utilizing a polymeric material with a high dielectric constant. By focusing on these factors, the research aims to overcome the limitations of conventional capacitors and develop a storage system with significantly increased energy density, enabling more efficient energy storage for clean and sustainable sources. This thesis presents the design and implementation of a high-efficiency DC/DC converter system for energy storage applications. The system utilizes a transformer less step-up converter and a flyback topology for step-down conversion. The transformer less step-up converter is designed to increase the input voltage efficiently, while the flyback topology is employed for effective voltage reduction. Both converters achieve an impressive efficiency of 90%. The proposed solution addresses the challenges of energy conversion in storage systems, ensuring both reliability and performance.