天然气掺氢可以有效实现降碳，燃气轮机掺氢运行可以提升可再生能源的储存消纳，但掺氢会带来燃气轮机动态特性变化，需开展相关仿真及控制策略研究。本文构建了一个包含涡轮特性修正的天然气/氢混合燃料燃气轮机的变工况特性预测混合模型，使用了国家管网提供的实机数据进行模型校准，针对掺氢带来的燃气轮机动态特性变化，提出了基于LADRC的控制策略。结果表明：掺氢能够改善燃气轮机动态特性，增加压气机喘振裕度，但氢含量变化会造成转速波动及燃气初温瞬时升高等影响。本文所提出的基于LADRC的控制策略可以有效在负载突变及掺氢比波动时改善燃机动态特性。相较于传统PID控制器，超调量和恢复时间可分别降低至50%和20%，同时能够有效改善氢含量波动时燃气初温的峰值变化，提高系统的可靠性。

Hydrogen blending of natural gas can effectively achieve energy saving and carbon reduction, and can be applied to fuel drive compressor units to improve the storage and consumption of renewable energy in related fields. Therefore, it is necessary to carry out research on its performance simulation and control strategy. In this paper, a prediction model of variable operating condition characteristics of a gas/hydrogen hybrid gas turbine including turbine characteristic correction is constructed, and the model is calibrated using the actual data provided by the national pipeline network. In response to the dynamic characteristics changes of the gas turbine caused by hydrogen addition, a control strategy based on LADRC is proposed. The results show that hydrogen addition can improve the dynamic characteristics of the engine and increase the compressor surge margin. However, changes in hydrogen content will cause speed fluctuations and instantaneous increases in the initial gas temperature. The proposed control strategy based on LADRC can effectively improve the dynamic characteristics of gas turbines when there are sudden load changes and fluctuations in hydrogen blending ratio. Compared with the traditional PID controller, the overshoot and recovery time can be reduced to 50% and 20% respectively. At the same time, it can effectively improve the peak change of the initial gas temperature when the hydrogen content fluctuates, and enhance the reliability of the system.

基础产品创新科研项目（GT20220501）