The direct-on-line start-up of a synchronous motor results in alternating torques which can excite the lowest torsional natural frequency of compressor trains used in the oil & gas industry. Considering a slip-dependent variation of the rotor parameters, an integrated electrical and mechanical simulation model is developed, providing an accurate estimation of the air-gap torque. The proposed approach is validated by an accurate testing campaign carried out during moto-compressor field test activities.
Estimation of Synchronous Motor Air-Gap Torque in DOL Start-Up Operation from Manufacturer Data Sheet Parameters / Lorenzo Bongini , Rosa Anna Mastromauro, Daniele Sgrò, Michele Frattoni, Francesco Meucci. - ELETTRONICO. - CFP19850-ART:(2019), pp. 1-10. (Intervento presentato al convegno 21st European Conference on Power Electronics and Applications EPE 2019 ECCE EUROPE tenutosi a Genova (Italy) nel September 3-5, 2019) [10.23919/EPE.2019.8914984].
Estimation of Synchronous Motor Air-Gap Torque in DOL Start-Up Operation from Manufacturer Data Sheet Parameters
Lorenzo bongini;Rosa Anna Mastromauro;
2019
Abstract
The direct-on-line start-up of a synchronous motor results in alternating torques which can excite the lowest torsional natural frequency of compressor trains used in the oil & gas industry. Considering a slip-dependent variation of the rotor parameters, an integrated electrical and mechanical simulation model is developed, providing an accurate estimation of the air-gap torque. The proposed approach is validated by an accurate testing campaign carried out during moto-compressor field test activities.
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