基于混合电解槽自适应控制的光伏制绿氢系统研究
STUDY ON PHOTOVOLTAIC GREEN HYDROGEN PRODUCTION SYSTEM BASED ON ADAPTIVE CONTROL OF HYBRID ELECTROLYZER
王舜彦 1任永峰 1张小龙 2薛宇 3刘鹏 2温国伟4
作者信息
- 1. 内蒙古工业大学电力学院,呼和浩特 010080
- 2. 中国三峡新能源(集团)股份有限公司建设管理分公司,四子王旗 011800
- 3. 清华大学车辆与运载学院,北京 100084
- 4. 三峡新能源四子王旗有限公司,四子王旗 011800
- 折叠
摘要
构建光伏阵列与混合电解槽耦合于交流母线的制氢系统.为提高光伏发电系统在环境变化下的能效,采用基于自适应步长扰动观测式的最大功率点追踪技术,光伏直流侧利用超级电容的快速响应和电荷平滑的特性稳定母线电压,网侧变流器采用虚拟同步机控制策略,实现快速响应电网变化需求,提供电网惯性和频率支撑,增强系统稳定性和可靠性;并针对传统单一电解槽制氢系统在固定工作模式下面临的能源浪费、适应性不足等问题,结合碱性电解槽和质子交换膜电解槽的优势,引入一种电解槽自适应控制系统,根据光伏输出功率和电解槽的状态实时调整工作模式,使系统在不同场景下保持较高的灵活性和稳定性.最后通过仿真验证所搭建模型与控制策略的正确性与有效性.
Abstract
In addressing the issues of renewable energy curtailment and reducing carbon emissions in China,solar hydrogen production has become one of the effective solutions.The paper constructs a hydrogen production system by coupling a photovoltaic array with a mixed electrolyzer connected to AC bus.To enhance the energy efficiency of the photovoltaic power generation system under environmental changes,it employs maximum power point tracking technology based on adaptive step perturb and observe.The DC side of the photovoltaic system utilizes the rapid response and charge-smoothing characteristics of supercapacitors to stabilize the bus voltage.On the grid side,the inverter adopts a virtual synchronous machine control strategy to achieve a rapid response to changes in grid demand,providing grid inertia and frequency support to enhance system stability and reliability.In addressing the issues of energy waste and insufficient adaptability faced by traditional single electrolyzer hydrogen production systems in a fixed operating mode,an electrolyzer adaptive control system is introduced.Combining the advantages of alkaline electrolyzer and proton exchange membrane electrolyzer,this system adjusts the operating mode in real-time based on photovoltaic output power and electrolyzer status,ensuring the system maintains high flexibility and stability in different scenarios.Finally,the correctness and effectiveness of the constructed model and control strategy were verified through simulation.
关键词
光伏/制氢/最大功率点追踪技术/自适应控制系统/虚拟同步机/混合电解槽Key words
PV/hydrogen production/maximum power point tracking technology/adaptive control systems/virtual synchronous generator/mixed electrolytic cell引用本文复制引用
基金项目
国家自然科学基金(52367022)
国家自然科学基金(51967016)
内蒙古自治区重点研发和成果转化项目(2023YFHH0077)
内蒙古自治区科技创新重大示范工程"揭榜挂帅"项目(2023JBGS0013)
出版年
2024
NETL
NSTL
万方数据