引用本文: | 魏立明,吕雪莹.固体氧化物燃料电池发电系统模型建立及逆变器仿真研究[J].电力系统保护与控制,2016,44(24):37-43.[点击复制] |
WEI Liming,LÜ Xueying.Solid oxide fuel cell power generation system model and study on inverter simulation[J].Power System Protection and Control,2016,44(24):37-43[点击复制] |
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摘要: |
以固体氧化物燃料电池发电系统为研究对象,以释放变换器上电感能量,减少电容充电时间为目的,提出了在DC/DC变换器中增加一个反激式绕组。该反激式绕组的输出端、接地端分别与DC/DC变换器的输出端、输出接地端相连,构成输出回路,以释放输入电感启动时多余能量,保证输出直流母线电压的稳定性。逆变器输出电压控制采用模糊PID控制策略,可在固体氧化物燃料电池输出电压不稳定时,通过监测该系统的输出电压和给定电压差值,在线调整KP、Kd、Ki控制输出量。该控制策略与传统PID控制策略进行了比较,比较结果证明其性能优于传统PID控制策略。采用Matlab软件搭建系统模型,固体氧化物燃料电池发电系统的仿真研究验证了以上的理论分析。 |
关键词: 燃料电池 隔离型全桥变换器 DC/AC逆变器 滤波器 Matlab仿真 |
DOI:10.7667/PSPC152160 |
投稿时间:2015-12-11修订日期:2016-05-17 |
基金项目: |
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Solid oxide fuel cell power generation system model and study on inverter simulation |
WEI Liming,LÜ Xueying |
(School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, China) |
Abstract: |
Based on the study of the solid oxide fuel cell power generation system, and to release the energy of converter inductance and reduce the charging time of capacitance for the purpose, adding a flyback winding in DC / DC converter is proposed. Its output terminal and ground terminal are connected with the DC / DC converter output terminal and the output ground terminal separately, forming the output circuit and releasing excess energy when the input inductor starts, to ensure the stability of the output voltage of the DC/DC bus. Fuzzy PID control strategy is used in inverter output voltage control, by monitoring the system output voltage and the given voltage based on-line adjust KP, Kd, Ki control output, when solid oxide fuel cell output voltage is instable. Comparative results show that its performance is superior to the traditional PID control strategy. The simulation of the solid oxide fuel cell power generation system has verified the above theoretical analysis by using Matlab software to build the model system. |
Key words: fuel cell isolated boost full bridge converter DC/AC inverter filter Matlab simulation |