Modeling of transient operating modes of electric ships’ propulsion electric motors during maneuvers
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Abstract
The aim of the study is to develop a generalized mathematical model of transient operating modes of ship propulsion electric motors. The model is based on a unified method for describing torque. The feasibility of describing transient processes in electric motors as components of a single ship propulsion system is substantiated. A universal form of recording transient modes of ship propulsion electric motors is proposed. In accordance with the theory of dynamic similarity, the mathematical description is presented in relative units. The criteria of dynamic similarity are identified and the dimensionless parameters of electric motors are generalized. The feasibility of using these parameters in the framework of a comparative analysis of the performance indicators of propulsion electric motors as part of ship propulsion systems during maneuvering is substantiated. The possibility of using the developed mathematical apparatus in calculating the operating parameters of electric motors during maneuvers is illustrated. The model is universal. As specific cases, mathematical models of existing and future types of propulsion electric motors follow from it. A unified mathematical framework and unified dimensionless parameters enable a comparative analysis of the performance indicators of different types of propulsion electric motors.
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References
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