Research on intelligent control of gas purification and parallel offgrid for biomass power generation in microgrid
In response to the presence of corrosive gases such as H2 S and HCl in biomass gas,which can easily corrode internal combustion generators and pipeline systems,a study was conducted on the purifica-tion of biomass gas using hydroxyl iron oxide high sulfur capacity desulfurization technology and a com-posite layer long life dechlorination system;at the same time,an intelligent response strategy for rapid ac-tive power balance is proposed to address the frequency limit issue caused by significant power imbalance during the switching process of biomass microgrids and off the grid.After research,the sulfur capacity of hydroxyl iron oxide prepared with NH4 HCO3 can reach over 50%,and the outlet concentration of hydrogen sulfide is less than 1 mg/L.After dechlorination in a composite bed,the service life can reach over 30 d when the outlet HCl is less than0.5 mg/L.Simultaneously,through intelligent distributed power generation power regulation and precise load control,the rapid balance of active power within the microgrid during islanding can be achieved.It can control the frequency fluctuation within the microgrid within 5%.
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