Research on the application of solid state transformer in AC/DC hybrid microgrid
固态变压器在交直流混合微电网中的应用研究

摘要

随着可再生能源在微电网中的应用逐渐增加，交直流混合微电网的需求也日益增长。固态变压器作为一种新型的电力电子设备，能够高效实现交流与直流之间的电能转换，且具有体积小、损耗低、调节范围广等优势，尤其适用于交直流混合微电网中的应用。本文研究了固态变压器在交直流混合微电网中的关键技术及其优势，探讨了固态变压器如何提升系统的可靠性、效率和灵活性。通过对比传统变压器，分析其在电力转换、控制策略以及稳定性等方面的表现，提出了优化方案及应用前景。

Abstract

With the growing adoption of renewable energy in microgrids, demand for hybrid AC/DC microgrids continues to rise. Solid-state transformers, as a novel power electronics device, efficiently convert electrical energy between AC and DC while offering advantages such as compact size, low losses, and wide regulation range, making them particularly suitable for hybrid AC/DC microgrid applications. This study investigates key technologies and benefits of solid-state transformers in hybrid AC/DC microgrids, exploring how they enhance system reliability, efficiency, and flexibility. By comparing their performance with traditional transformers in power conversion, control strategies, and stability aspects, the paper proposes optimization solutions and outlines their application prospects.