Electronic Commutation Motor Control TRIZ Cases

A split electric actuator drive unit separates control and power modules to minimize spatial footprint in constrained aircraft bays.

A control device corrects magnetic flux estimation values using d and q axis voltage deviations to detect permanent magnet demagnetization.

A median filter processes sampled electrical frequency signals to derive rotor speed from stator and rotor flux data.

A method applies constant current to stator windings while varying voltage to determine equivalent circuit parameters for three-phase induction motors.

A sensorless method synchronizes reluctance machines using induced current harmonic spectra.

Dynamic control monitors winding temperature and resistance to maintain magnetic flux density.

A double virtual voltage vectors predictive torque control method eliminates weighting factors in five-phase permanent magnet synchronous motor drives.

An induction motor controller regulates rotor flux and torque using voltage vectors in a rotor flux reference frame.

Grounding switch connects resistor across filter capacitor electrodes, eliminating logic circuits and reducing circuit size.

A controller alternates between active braking and coasting periods to dissipate reverse current, eliminating speed ringing without bulky discharge circuits.

Dynamic axis switching corrects d-axis current errors during high-speed operation, maintaining stability under large demagnetizing currents.

Dynamic torque ripple correction minimizes current oscillations on the DC bus, improving battery state of charge accuracy and acoustic performance.

A three-phase high-frequency rotation voltage applied to a synchronous motor enables direct inductance calculation from the resulting current components.

A verification system transforms stator currents into cooperative variables to detect sensor faults in permanent magnet motors.

A paddle switch assembly incorporates a biasing member to absorb trigger travel distance.

Mitigation voltages compensate for imprecise current measurements, reducing torque oscillations at high power levels.

Dynamic decoupling control mitigates cross-magnetic coupling instability by introducing fixed time delays to prevent simultaneous torque transitions.

An extended Kalman filter derives rotor speed from radial position sensor data in active magnetic bearing systems.

A control apparatus corrects d-q axis command voltages to reduce deviations from actual applied voltages in rotary electric machines.

A control device generates torque to rapidly discharge a capacitor during vehicle anomalies.

Dynamic modulation duration adjusts to minimize switching loss across varying power factors while controlling current total harmonic distortion.

Variable oscillator circuits synchronize with battery voltage to reduce noise sensitivity and false brake pulses in brushed DC motors.

A driver device applies reverse current pulses to oscillate residual voltage across actuator windings for precise back electromotive force sampling.

A control apparatus sets an initial rotation phase based on current polarity to reduce torque shock during reactivation.

An initialization switch connects an adaptive power supply unit to a conveyor motor while keeping the safety circuit active.

A surface-mounted permanent magnet motor controller calculates peak torque using voltage angle and available inverter voltage to limit torque commands without iteration.

Controller uses dead-beat direct torque control to maximize energy consumption during braking without torque ripple.

Detect rotor position via neutral point voltage in Y-topology stators to resolve low-speed sensor failure risks.

A control unit determines compensating current characteristics to minimize cogging torque ripple in electric generators.

A scaling factor adjusts air-gap magnetization in interior permanent magnet generators to reduce copper and core losses.

A current detection unit calculates gamma-axis currents using pre-stored arithmetic expressions to maintain stable inverter control.

Aligning rotor positions with GPS reference vectors eliminates signal transmission delays that degrade wide-area damping control.

Individual LC filters remove high-frequency components from each power module output, reducing voltage overshoot and motor stress in variable frequency drives.

A control device for wound rotor synchronous machines uses a state observer to estimate stator currents from limited sensor data.

Controller monitors inverter output current to detect switch state.

A controller generates compensation voltage using motor speed feedback to stabilize inverter operation.

Dual angle sensors calculate motor shaft rotation to resolve output shaft position errors from sensor inaccuracies.

A diagnostic system isolates stator winding faults from sensor errors using d-axis voltage command analysis.

Superimposing varying signals onto drive currents enables accurate inductance estimation at any operating point without inducing rotation.

A controller calculates dynamic torque from electrical measurements to modulate converter power and damp torsional oscillations.

A variable magnetization motor control method generates a curved clockwise flux linkage vector trajectory on the dq-axis plane to optimize voltage usage.

A control system estimates rotor coil temperature using voltage and current maps for real-time monitoring.

Electronic controller calculates phase imbalance ratios to differentiate controls-induced signals from actual faults in machine components.

Automated power consumption tracking replaces manual calculations to select a smaller DC conversion unit that matches actual machine tool operating conditions.

A wireless phasing voltmeter determines phase differences between conductors using simplex transmission.

A permanent magnet motor controller adjusts the phase offset angle between stator and rotor magnetic fields to modify flux weakening.

A control device adjusts the current space vector phase angle to redistribute thermal load across inverter switches.

A current command controller determines reference d-axis currents using iterative bisection within defined solution domains.

Injecting a reduced reference flux current enables reliable phase loss detection during operation without generating additional oscillations or torque loss.

A motor control circuit uses a power feedback loop to dynamically adjust PWM signals, resolving non-constant torque caused by varying coil power.