TY - JOUR
T1 - Alternative method to simulate a sub-idle engine operation in order to synthesize its control system
AU - Sukhovii, Sergii I.
AU - Sirenko, Feliks F.
AU - Yepifanov, Sergiy V.
AU - Loboda, Igor
N1 - Publisher Copyright:
© by De Gruyter 2016.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - The steady-state and transient engine performances in control systems are usually evaluated by applying thermodynamic engine models. Most models operate between the idle and maximum power points, only recently, they sometimes address a sub-idle operating range. The lack of information about the component maps at the sub-idle modes presents a challenging problem. A common method to cope with the problem is to extrapolate the component performances to the sub-idle range. Precise extrapolation is also a challenge. As a rule, many scientists concern only particular aspects of the problem such as the lighting combustion chamber or the turbine operation under the turned-off conditions of the combustion chamber. However, there are no reports about a model that considers all of these aspects and simulates the engine starting. The proposed paper addresses a new method to simulate the starting. The method substitutes the non-linear thermodynamic model with a linear dynamic model, which is supplemented with a simplified static model. The latter model is the set of direct relations between parameters that are used in the control algorithms instead of commonly used component performances. Specifically, this model consists of simplified relations between the gas path parameters and the corrected rotational speed.
AB - The steady-state and transient engine performances in control systems are usually evaluated by applying thermodynamic engine models. Most models operate between the idle and maximum power points, only recently, they sometimes address a sub-idle operating range. The lack of information about the component maps at the sub-idle modes presents a challenging problem. A common method to cope with the problem is to extrapolate the component performances to the sub-idle range. Precise extrapolation is also a challenge. As a rule, many scientists concern only particular aspects of the problem such as the lighting combustion chamber or the turbine operation under the turned-off conditions of the combustion chamber. However, there are no reports about a model that considers all of these aspects and simulates the engine starting. The proposed paper addresses a new method to simulate the starting. The method substitutes the non-linear thermodynamic model with a linear dynamic model, which is supplemented with a simplified static model. The latter model is the set of direct relations between parameters that are used in the control algorithms instead of commonly used component performances. Specifically, this model consists of simplified relations between the gas path parameters and the corrected rotational speed.
KW - gas turbine
KW - linear dynamic model
KW - simplified static model
KW - starting
KW - sub-idle operation
UR - http://www.scopus.com/inward/record.url?scp=84986301967&partnerID=8YFLogxK
U2 - 10.1515/tjj-2015-0027
DO - 10.1515/tjj-2015-0027
M3 - Artículo
SN - 0334-0082
VL - 33
SP - 229
EP - 237
JO - International Journal of Turbo and Jet Engines
JF - International Journal of Turbo and Jet Engines
IS - 3
ER -