Title :
Parameters and volt-ampere ratings of a synchronous motor drive for flux-weakening applications
Author :
Bianchi, Nicola ; Bolognani, Silverio
Author_Institution :
Dept. of Electr. Eng., Padova Univ., Italy
fDate :
9/1/1997 12:00:00 AM
Abstract :
This paper deals with the selection of the motor parameters and the inverter power ratings for a permanent magnet (PM) synchronous motor drive in order to meet a given flux-weakening torque versus speed characteristic. Appropriate combinations of stator PM flux linkage, d- and q-axis inductances, and inverter current rating at a given voltage are derived, in normalized values, as functions of the specified flux-weakening speed range and torque limits. By means of these sets of data, the drive designer can easily individuate and compare all the suitable synchronous motors (defined by the d- and q-axis inductances and flux linkage) and the related inverter volt-ampere ratings, for the desired flux-weakening performance. Therefore, this paper can be considered a synthesis work rather than an analysis one and can profitably be used for an optimal design of a synchronous motor drive
Keywords :
DC-AC power convertors; invertors; machine theory; magnetic flux; optimisation; permanent magnet motors; synchronous motor drives; PM synchronous motor drive; flux-weakening applications; flux-weakening performance; inductances; inverter current rating; optimal design; parameters; stator PM flux linkage; torque-speed characteristic; volt-ampere ratings; Couplings; Induction motors; Inverters; Reluctance motors; Scanning probe microscopy; Stators; Steady-state; Synchronous motors; Torque; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
