摘 要
随着分布式能源和可再生能源的不断发展，交直流混合微电网作为一种灵活、高效的能源管理系统，在现代电力系统中扮演着越来越重要的角色。然而，其复杂的运行模式和多样的能源接入方式也对电网的稳定性和安全性提出了新的挑战。本研究旨在开发一种有效的运行控制和保护策略，以提升交直流混合微电网的可靠性和经济性。为实现这一目标，我们采用了先进的控制算法和智能保护技术。该策略能够显著提高交直流混合微电网的供电可靠性和电能质量，同时降低运行成本。本研究的主要贡献在于提出了一种创新的运行控制和保护策略，为交直流混合微电网的安全、高效运行提供了有力支持，对未来智能电网的发展具有重要意义。
关键词：交直流混合微电网 运行控制策略 智能保护技术 模型预测控制
Abstract
With the continuous development of distributed energy and renewable energy, AC-DC hybrid microgrid, as a flexible and efficient energy management system, plays an increasingly important role in modern power systems. However, its complex operation mode and various energy access modes also pose new challenges to the stability and security of the power grid. The aim of this study is to develop an effective operational control and protection strategy to improve the reliability and economy of AC-DC hybrid microgrids. To achieve this, we employ advanced control algorithms and intelligent protection technologies. This strategy can significantly improve the power supply reliability and power quality of AC/DC hybrid microgrid, while reducing the operating cost. The main contribution of this study is to propose an innovative operation control and protection strategy, which provides strong support for the safe and efficient operation of AC-DC hybrid microgrids, and has important significance for the development of smart grids in the future.
Keyword:Ac-dc hybrid microgrid Run control policy Intelligent protection technology Model predictive control
目 录
1绪论 1
1.1研究背景及意义 1
1.2国内外研究现状 1
1.3研究内容及目的 1
2交直流混合微电网的基本原理 2
2.1交直流混合微电网的构成 2
2.2微电网中的关键技术与设备 2
2.3微电网的运行模式与转换 3
3交直流混合微电网的运行控制策略 3
3.1微电网的能量管理与优化 3
3.2并网与离网模式下的控制策略 4
3.3微电网中的储能系统控制 4
3.4运行控制的稳定性分析 5
4交直流混合微电网的保护技术研究 5
4.1微电网的故障类型与特点 5
4.2保护装置的配置与选择 6
4.3保护策略的制定与实施 6
4.4保护系统的可靠性与灵敏性分析 7
5结论 7
参考文献 9
致谢 10
