Motor Control For Low Load Efficiency TRIZ Cases
- Motor Controller Constant Airflow Mode for Low-Airflow Blower Accuracy
See how constant airflow mode with single-point calibration reduces torque errors and improves
- Method for controlling inverter and system
See how an inverter uses frequency variation and load feedback monitoring to prevent repeated s
- Motor Drive Switching Frequency Adjustment for Light Load Efficiency
See how dynamic switching frequency adjustment reduces energy loss in motor drives at light loa
- Airflow-confirming HVAC systems and methods with variable speed blower
See how a processing unit records breaking-point pressure and buffer margins to prevent false a
- Motor drive operation at light load conditions
See how dynamic switching frequency adjustment in motor drive circuits reduces energy consumpti
- Compressor Motor Preheating Control for Lower Power Use
Temperature-based preheating current control cuts compressor motor startup energy waste while maintaining reliable preheating.
- Boost Converter Pulse Shaping for Electric Machine Efficiency
A boost circuit recovers magnetic energy between pulses to shorten rise and fall times, improving pulsed electric machine efficiency.
- Asynchronous Motor Speed Control Using Fixed-Frequency PWM
Fixed-frequency PWM with duty-cycle feedback controls asynchronous motor speed while avoiding complex variable-frequency calculations.
- Boost Converter Mode Switching for Stable DC Link Voltage
A controller compares supply and inverter voltage to switch boost and rectification modes, preventing DCM and stabilizing DC link voltage.
- Electric Machine Pulse Modulation With Field Weakening
Pulse modulation switches electric machines between continuous and pulsed torque control to improve efficiency and avoid retarding torque from high BEMF.
- Dual-Converter Multi-Turn Winding Inverter for Low-Load Loss Reduction
A split winding with two converters cuts switching and capacitance losses at low load while preserving high-power operation.
- Motor No-Load Detection Control for Electric Work Machines
Summed physical-quantity variations improve no-load motor detection, enabling timely soft control in electric work machines.
- Dual-Motor Flywheel Unit With Nonlinear Power Across Wide Speeds
Two electric machines with different power curves share a flywheel rotor to deliver power across wide speeds with lower losses and less oversizing.
- Electric Motor Power Estimation Using Magnetic Harmonic Ratios
Magnetic field harmonic ratios estimate electric motor power accurately at low loads without torque, voltage, or current sensors.
- Electric Motor Power Estimation from Magnetic Field Harmonics
Magnetic field harmonic amplitude ratios estimate electric motor power accurately at low loads without torque, voltage, or current sensors.
- Rotor Boost Circuit for Faster Pulsed EESM Turn-On
Recovered rotor field energy is stored and reused as boost voltage to cut pulsed EESM turn-on delay and transition losses.
- Vehicle Motor Torque Modulation for Low-Load Efficiency
Pulse-width torque modulation shifts a vehicle motor out of low-efficiency low-load operation while preserving average torque and smooth driving.
- Boost Converter Energy Recovery for Fast Pulsed Motor Control
Recovered magnetic energy shortens pulse rise and fall times in electric machines, improving pulsed-drive efficiency and EV range.
- Electric Motor Controller Fault Detection for Inverter-Driven Systems
Sensor feedback and inverter control help pinpoint motor, inverter, and controller faults, reducing downtime in variable-load drives.
- Motor Control Unit for Compressor Pump Efficiency
A digital control unit calculates motor speed from back electromotive force voltages to generate precise PWM signals for frequency converters.
- Pulse Modulated Motor Control for Efficiency and Field Weakening
Modulated pulse control switches electric machines between continuous and pulsed modes to maintain peak efficiency torque.