Vector Control Systems TRIZ Cases
- Torque Monitoring System Using Field-Based Estimation
A torque monitoring system estimates electric machine torque using voltage and flux linkages instead of current sensors.
- Synchronous Motor Drive Phase Control for Noise Reduction
A synchronous motor drive apparatus determines voltage amplitudes and phases using current polarity detection to control rotational speed.
- Motor Voltage Harmonic Correction via FFT Distortion Isolation
A motor control system uses a synchronous filter to isolate distortion frequencies and generate correction signals for voltage adjustments.
- Sensorless PMSM Startup Using Rotor Flux Projection
A sensorless PMSM startup method adjusts current references using rotor flux projection to ensure smooth motor rotation.
- Motor Controller Regenerative Braking Slope Adjustment
A motor controller adjusts regenerative braking force using distinct control coefficient slopes for single and dual brake inputs.
- Electrical Angle Calculation Using Embedded Hall Sensors
Calculates electrical angle using normalized Hall sensor outputs, reducing device size and cost while maintaining measurement precision.
- Multi-Phase AC Motor Speed Validation Circuit
A speed validation circuit compares measured and calculated motor speeds to detect measurement failures in multi-phase AC motors.