Patent ID: 11863091
Assignee: EATON INTELLIGENT POWER LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of operating a reduced voltage soft starter (RVSS) that drives a motor, the method comprising:
sensing a line voltage provided to the RVSS to produce a first voltage signal;
sensing a current of the motor to generate a current signal;
transforming the first voltage signal according to an ABC-dq0 transformation at a first angle to generate a component signal;
scaling the component signal;
transforming the scaled component signal according to a dq0-ABC transformation at a second angle to generate load-side line-to-neutral voltage signals for respective phases; and
processing the load-side line-to-neutral voltage signals responsive to the current signal to compensate for switching by the RVSS.