AC Motor Control TRIZ Cases
- Sigma-Delta ADC Decimation Filter Adaptation
Dynamic decimation filter adapts to measurement windows, maintaining bit resolution across varying torque conditions.
- Modular Variable Speed Drive with Interchangeable Supercapacitor
A modular variable speed drive uses interchangeable modules to select between braking resistors and supercapacitor energy storage.
- Inverter PWM Timing Adjustment for Capacitor Ripple Reduction
Modified PWM pulses adjust generation timing and frequency to reduce capacitor ripple current, lowering heat generation without adding hardware complexity.
- Dynamically Reconfigurable Motor Windings for Efficiency Optimization
Dynamic pole and phase reconfiguration via power converters resolves efficiency losses in standard three-phase motors, reducing weight and cost.
- Servomotor Control Device with Dynamic Compensator Switching
Switching between PI and I-P compensators stabilizes the system by attenuating high-frequency resonance during mode transitions.
- Electric Power Converter Multi-Source Synthesis
A multi-phase electric power converter synthesizes driving voltages from plural DC sources using fewer semiconductor switches.
- Switched Reluctance Motor Torque Ripple Suppression
Segmenting commutation into distinct intervals resolves the trade-off between fast current rise and precise torque output.
- Multi-Phase PWM Carrier Shifting for Common Mode Inductor Size Reduction
Shifting triangle carrier frequencies reduces common mode inductor weight by at least 50% without increasing switching losses.
- Linear Motor Positioning via Vector Regulation Analysis
Vector regulation analysis computes rotor position from motor currents, eliminating RFID sensor density and installation costs.