کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1715104 1519967 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Controller development of photo bioreactor for closed-loop regulation of O2 production based on ANN model reference control and computer simulation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Controller development of photo bioreactor for closed-loop regulation of O2 production based on ANN model reference control and computer simulation
چکیده انگلیسی

When Bioregenerative Life Support System (BLSS) is used for long-term deep space exploration in the future, it is possible to perform closed-loop control on growth of microalgae to effectively regulate O2 production process in emergencies. However, designing controller of microalgae cultivating device (MCD) by means of traditional methods is very difficult or even impossible due to its highly nonlinearity and large operation scope. In our research, the Artificial Neural Network Model Reference Control (ANN-MRC) method was therefore utilized for model identification and controller design for O2 production process of a specific MCD prototype—photo bioreactor (PBR), based on actual experiment and computer simulation. The results demonstrated that the ANN-MRC servo controller could robustly and self-adaptively control and regulate the light intensity of PBR to make O2 concentrations in vent pipe be in line with step reference concentrations with prescribed dynamic response performance.


► A valid ANN model was indentified for capturing O2 response to light intensity.
► ANN-MRC servo controller of O2 production was developed by digital simulation.
► Real-time simulation was conducted for validation, verification and accreditation.
► ANN-MRC servo controller could precisely control the growth of S. platensis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 83, February–March 2013, Pages 232–238
نویسندگان
, , , , ,