Electronic Commutation Motor Control TRIZ Cases
- Angular Position Detection for PM Motors Using Phase Vectors
A processor forces phase vectors to stator terminals and measures resulting current levels to determine rotor angular position.
- Motor Diagnosis via Non-Rotating Voltage Signal Application
A motor diagnosis method applies a non-rotating voltage signal to measure electrical characteristics without requiring rotation.
- Motor Position Data Compensation for Time Delay
A data processor aligns rotor position signals with analog current readings to correct timing errors in electric motor control systems.
- Asymmetric Phase Shift Autotransformer for AC Motor Weight Reduction
Asymmetric phase shift autotransformer reduces weight by diverting common-mode voltage to ground, minimizing filter size.
- Power Supply Voltage Waveform Calculation for Motor Circuit Analysis
Calculate power supply voltage waveforms using preliminary transient magnetic field analysis to determine initial coil current values.
- Motor Control Device Feedforward Phase Amplitude Generation
Feedforward calculation of phase and amplitude command values reduces current noise amplification and improves rotation stability.
- Fan Motor Specification Management via Electronic Tag
An electronic tag stores updatable specifications in a fan motor, allowing the control computer to adjust operation without altering hardware variants.
- Rotating Electrical Machine Rotor Flange for Noise Reduction
A rotor flange with a specific arc radius modifies magnetic flux distribution in permanent magnet machines.
- Active Rectifier Controller Phase Compensation for Variable-Frequency Generators
An active rectifier controller uses independent rotor position data to generate PWM signals that maintain AC currents in-phase with back-electromotive force voltage.
- Double-Star Synchronous Machine Control with Unconnected Neutrals
Independent control units manage branch pairs in double-star machines, reducing mass while maintaining reliability without reconfiguration.