New approaches for regulation of solid oxide fuel cell using dynamic condition approximation and STATCOM,International Transactions on Electrical Energy Systems

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New approaches for regulation of solid oxide fuel cell using dynamic condition approximation and STATCOM
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2021-01-05 , DOI: 10.1002/2050-7038.12756
Yuan Zhi ₁ , Wang Weiqing ₁ , Wang Haiyun ₁ , Navid Razmjooy ₂

Affiliation

A new dynamic condition approximation method, which provides the current feedback, in collaboration with STATCOM regulation approach is presented to diminish the variation in voltage of solid oxide fuel cell (SOFC) electrical energy generators in connection to the compound power network in the time of faults. The suggested regulation approach is contrasted with the other present regulation techniques and the results show its advantage over the others in mitigating voltage fluctuation, inaccuracy and guarding the membranes inside the fuel cells. Because the dynamic internal conditions in the SOFC can precisely represent the transient conditions and dynamicity of the SOFC, their usage in designing the voltage regulator will provide more desirable control of voltage in the SOFC compared to the other approaches. Nonetheless, this model is not enough to mitigate AC voltage fluctuation which is caused by faults. Hence, STATCOM, which is a power electronic equipment, is applied to improve the alleviation of voltage variation and inaccuracy. Electricity network in the presence of the suggested regulation approach has shown stability in the linear assessments. Linear assessment of the system demonstrates that the final energy system embedded with the proposed regulation can maintain stability. Obtained numerical analysis demonstrates the validity of suggested approach.

中文翻译：

动态条件逼近和STATCOM调节固体氧化物燃料电池的新方法

提出了一种新的动态条件逼近方法，该方法与STATCOM调节方法配合使用，可提供电流反馈，以减少发生故障时与复合电网连接的固体氧化物燃料电池（SOFC）发电机的电压变化。所提出的调节方法与现有的其他调节技术形成对比，结果表明其在减轻电压波动，准确性和保护燃料电池内膜方面优于其他调节技术。由于SOFC中的动态内部条件可以精确地表示SOFC的瞬态条件和动态性，因此与其他方法相比，将其用于设计稳压器将提供对SOFC中电压的更理想的控制。尽管如此，该模型不足以缓解故障引起的交流电压波动。因此，作为电力电子设备的STATCOM被应用于改善电压变化和不准确性的减轻。采用建议的调节方法的电网在线性评估中显示出稳定性。系统的线性评估表明，嵌入拟议法规的最终能源系统可以保持稳定性。数值分析表明了所提方法的有效性。系统的线性评估表明，嵌入拟议法规的最终能源系统可以保持稳定性。数值分析表明了所提方法的有效性。系统的线性评估表明，嵌入拟议法规的最终能源系统可以保持稳定性。数值分析表明了所提方法的有效性。

更新日期：2021-02-02

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