计及风电和燃料电池的综合能源系统阻尼特性分析

综合能源系统可协调多种能源,有效提升新能源利用效率,已成为促进能源可持续发展的重要手段,研究多能源接入电力系统影响已成为综合能源系统发展的重要内容。针对计及风电和燃料电池联合并网运行的电力综合能源系统阻尼特性展开研究。首先,构建风电机组和燃料电池的数学模型,导出两者并网后系统小干扰稳定分析模型;之后,采用特征根分析和时域仿真分析法,针对算例系统研究不同运行工况/因素下计及风电和燃料电池的互联系统阻尼特性,包括其不同容量配比、不同接入方式以及联络线传输功率变化等。研究结果可为评估综合能源系统消纳新能源发电的能力及稳定运行提供技术参考。

Analysis of damping characteristics of an integrated energy system with hybrid wind-fuel cells integrated

The integrated energy system can integrate multiple kinds of energy sources and effectively improve the utilization efficiency of renewable energy generation,anil represents a significant means to promote the sustainable development of energy.The research on the impacts of multi-energy connected on the power system has become an essential part for the development of the integrated energy system.In this paper,the damping characteristics of an integrated energy system with hybrid wind-fuel cells integrated are studied.The mathematical models of wind turbines and fuel cells are constructed and the stability analysis model of small disturbance then derived.The damping characteristics of the interconnected power system with wind power units and fuel cells under different operating conditions are studied for a sample power system,including different capacity ratios,different access modes,and different levels of tic-line transmission power,using the eigenvalue analysis and time-domain simulation.The research results can provide a reference for the integrated energy system to accommodate renewable energy and operate stably.