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IEEE Guide for Evaluation of Torque Pulsations During Starting of Synchronous Motors
New IEEE Standard - Inactive-Reserved.
A uniform method for calculating and measuring torque pulsations that occur during starting of synchronous motors is provided.
Synchronous motors, as discussed in this guide, applies to all types of excited synchronous motors, including laminated or solid, salient or nonsalient machines, as well as nonexcited synchronous-reluctance motors.
To assist in providing a uniform method for calculating and measuring torque pulsations which occur during starting of synchronous motors.
Synchronous motors as discussed in this guide specifically refer to salient-pole type motors with wound main field circuits with either a continuous or interrupted amortisseur cage.
In modern installations, direct current is applied to the main field by means of slip rings from a static exciter or by a rotating brushless excitation system to establish synchronous operation.
Electromagnetic torque pulsations which occur during starting of synchronous motors refer to the variations in the torque produced by the motor due to the interaction of the magnetic fields within the machine during the startup transient period.
Recommend a standard equivalent circuit that can be used to analytically describe the behavior of the synchronous motor during starting.
Provide the definitions and information necessary to properly determine the circuit parameters in the equivalent circuit.
Supply equations derived from the circuit which can be used to calculate the magnitude of the torque pulsation which would occur during starting.
Present a uniform technique for the on-line measurement of torque pulsations during starting based on equations derived from the equivalent circuit.
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