摘要
【目的】为提升固体氧化物燃料电池(solid oxide fuel cell,SOFC)系统性能及寿命,以100 kW SOFC系统为研究对象,探究在保证输出电压跟踪性能的同时,通过强化学习不断调整控制器系数以实现最佳的综合性能。【方法】建立基于机理的SOFC输出电压系统模型,采用改进型的非线性自抗扰控制器(nonlinear active disturbance rejection control,NLADRC),通过控制输入燃气流量,使输出电压很好地跟踪参考值。考虑到传统的单通道控制器无法同时满足多个目标,但若采用双通道控制器则会导致系统复杂性、成本和故障风险增加,提出一种基于双延迟深度确定性策略梯度(twin delayed deep deterministic policy gradient,TD3)的改进型非线性自抗扰控制器,对非线性误差反馈控制律系数进行实时调节和优化。【结果】所设计控制器可在不违反燃料利用约束的情况下提高SOFC输出电压跟踪性能。【结论】所设计控制器具备适应性强、稳定性高和能克服不确定性等优点,为实际SOFC系统的输出电压控制器设计提供理论参考。
[Objectives]In order to improve the performance and lifetime of solid oxide fuel cell(SOFC)systems,the 100 kW SOFC system was taken as the research object.The continuous adjustment of the controller coefficients was explored through reinforcement learning to realize the best comprehensive performance,while ensuring the output voltage tracking performance.[Methods]A mechanism-based SOFC output voltage system model was established,an improved nonlinear active disturbance rejection controller(NLADRC)was used to make the output voltage track the reference value well by controlling the input gas flow.Conventional single-channel controllers can only satisfy one objective at a time,and dual-channel controllers will increase system complexity,cost and risk of failure.An improved NLADRC controller based on the twin delayed deep deterministic policy gradient(TD3)was proposed to optimize the coefficients of nonlinear error feedback control law.[Results]The designed controller can improve SOFC output voltage tracking performance without violating fuel utilization constraints.[Conclusions]The designed controller has the advantages of strong adaptability,high stability,and the ability to overcome uncertainty,providing theoretical reference for designing output voltage controllers in practical SOFC systems.
作者
管超骏
雷正玲
霍海波
王芳
姚国全
刘涛
GUAN Chaojun;LEI Zhengling;HUO Haibo;WANG Fang;YAO Guoquan;LIU Tao(College of Engineering Science and Technology,Shanghai Ocean University,Pudong New District,Shanghai 201306,China;Key Laboratory of High Performance Ship Technology of the Ministry of Education(Wuhan University of Technology),Wuhan 430063,Hubei Province,China;College of Transport and Communications,Shanghai Maritime University,Pudong New District,Shanghai 201306,China)
出处
《发电技术》
CSCD
2024年第6期1163-1172,共10页
Power Generation Technology
基金
国家自然科学基金项目(52301420,52071201)
高性能舰船技术教育部重点实验室开放基金课题项目(GXNC23052801)
上海市地方院校能力建设计划项目(23010502200)。
