Title :
A system-level approach to the optimal dimensioning of induction-motor variable-frequency drives
Author :
Tessarolo, Alberto ; Giulivo, Davide ; Mezzarobba, Mario
Author_Institution :
Electr., Electron., Comput. Eng. Dept., Univ. of Trieste, Trieste, Italy
Abstract :
In the design of induction motor adjustable-speed drives, the same efficiency and performance requirements can be achieved with different choices as far as the motor and the inverter individual size is concerned. Depending on the specific functions that relate motor and inverter size to their respective cost, each choice is expected to result in a different overall drive cost. This paper presents a design algorithm that enables to dimension the motor and the inverter so as to achieve a minimum of the overall drive cost, under efficiency and performance constraints. As a study case, the algorithm is applied to the optimal dimensioning of a 600 kW induction motor drive designed to operate over a 600divide1000 rpm speed-range with a 235% temporary overload capability and a minimum motor efficiency of 94% at 600 rpm and 600 kW.
Keywords :
induction motor drives; invertors; variable speed drives; efficiency 94 percent; induction motor adjustable-speed drives; induction-motor variable-frequency drives; inverter individual size; power 600 kW; system-level approach; Algorithm design and analysis; Constraint optimization; Cost function; Drives; Inductance; Induction motors; Industrial electronics; Inverters; Uniform resource locators; Voltage; AC machine; Adjustable speed drive; Design; Efficiency; Induction motor;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
