相关实验视频
Updated: Sep 17, 2025

15:08
Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells
Published on: September 20, 2012
16.1K
模拟和优化SOEC的控制,具有灵活的调整能力.
Yaqing He1, Weiqing Wang2, Yingtian Chi3
1Engineering Research Center of Education Ministry for Renewable Energy Power Generation and Grid Connection, Xinjiang University, Urumqi, 830017, China.
Scientific reports
|July 2, 2025
概括
本研究介绍了固体氧化物电解电池 (SOEC) 系统的自适应控制方法,以稳定温度并提高绿色生产过程中的效率. 新方法在可变负载条件下优于传统方法.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 能源系统 能源系统
- 材料科学 材料科学 材料科学
背景情况:
- 高温固体氧化物电解电池 (SOEC) 系统面临影响性能的功率波动.
- 空间分布 (温度,电压,度) 的恶化降低了SOEC的灵活性和控制.
研究的目的:
- 为SOEC系统制定全面的优化和控制战略.
- 确保在可变负载下稳定,高效和可持续的绿色生产.
主要方法:
- 开发了一个适应增量Kriging替代模型,用于SOEC优化.
- 进行了热动力学分析,并实施了适应性时间变化的LPV-MPC控制.
- 通过动态性能和空间特征分析验证了该方法.
主要成果:
- 拟议的自适应控制方法在变量负载下有效稳定SOEC堆温度,优于PID控制.
- 实现了电解电压和电流的快速调整,提高了整体效率.
- 在中国新疆的SOEC气生产中演示了优化能源消耗调度.
结论:
- 适应性控制战略确保了稳定的SOEC运行,并提高了电解效率.
- SOEC系统可以有效地过渡到不同的负载点,同时保持热稳定性.
- 这项研究有助于推进可靠和高效的绿色生产技术.
相关概念视频
Controlled-Potential Coulometry: Electrolytic Methods
287
Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential...
The chosen potential...
287
Electrolysis
27.3K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
27.3K
Controlled-Current Coulometry: Overview
312
Controlled current coulometry, also known as amperostatic coulometry, is a technique used in electrochemical analysis to measure the quantity of a substance through the controlled passage of current. It involves the application of a constant current to an electrochemical cell containing the analyte of interest. As the current flows through the cell, the analyte undergoes a redox reaction at the electrode surface, resulting in a charge transfer. By monitoring the time required for a certain...
312
Interfacial Electrochemical Methods: Overview
453
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
453

