Electronic Commutation Motor Control TRIZ Cases

A stationary frame transformation extracts extended rotor flux components from stator currents and potentials to derive angular position.

Adjustable pulse injection determines rotor position without sensors, reducing estimation errors from pulsating torque noise at low speeds.

A steering device uses multiple dead time compensating functions to correct inverter timing errors without manual tuning.

Axial connector integration reduces drive apparatus volume by merging control circuitry within the motor stack.

A rotary machine control apparatus calculates interference reduction currents in rotating coordinate systems to adjust output voltage vectors.

A phase angle estimation apparatus applies distinct pulse voltages to multiple coil sets to generate current vectors for precise motor control.

A motor control apparatus compares phase currents to detect noise interference in sensorless DC brushless motors.

A method for identifying magnetic anisotropy in electric rotary field machines uses injection pulses to detect current response vectors.

Periodic switching control reduces harmonic currents and noise costs without high-frequency PWM.

A controller generates dynamic input current data from self flux, mutual flux, and saturation scaling factors to determine optimal electrical pulses for rotor positioning.

A motor drive apparatus switches inverter circuits between series and parallel connections to distribute power efficiently.

Hybrid rotor position estimation blends angle and magnitude methods to resolve measurement precision issues during low-speed operation.

An induced-voltage observer estimates motor phase error to determine control gains without trial-and-error adjustments.

A motor control module applies increasing or decreasing current to manage magnetic flux in variable magnetic motors.

An ironless rotor eliminates iron losses while a hysteresis-prone characteristic curve maintains control stability at low speeds.

A stepping motor control device measures coil voltage during current direction switches to detect step-out states.

A motor drive estimates rotor speed and flux using a transformed model that decouples unknown parameters from stator measurements.

A power conversion device calculates speed estimation values using a rotating coordinate system aligned with primary current direction.

Applying high-frequency voltage creates unique frequency responses that differentiate low-tolerance machines using simple measuring devices.

Microprocessor-controlled multiplexer selects input signal interface circuits to adapt electronic commutated motors.

An initial drive prohibiting portion prevents repeated learning cycles that cause unexpected temperature rises, extending the motor lifespan.

A PWM inverter system estimates DC-link capacitance using d-axis and q-axis voltage commands during motor regeneration.

A motor driving device adjusts command current limits to maintain followability.

A PWM converter injects a DC signal into an AC motor drive to estimate stator winding resistance without additional circuitry.

A single operational amplifier detects motor current signals to estimate load torque.

A drive circuit employs a two-port LC inductive network with a source switch to boost motor phase voltages.

Active damping via field-oriented control stabilizes intermediate circuit voltage without affecting motor torque, resolving resonance instability.

A power control device corrects duty command values using carrier signal cycle adjustments to ensure accurate PWM generation.

A control device estimates magnetic flux change amounts using d-axis and q-axis voltages to support motor management.

A magnetic pole detection circuit processes back EMF signals to generate zero-crossing point data for motor control.

A field excitation coil serves dual functions in an integrated drive system by generating magnetic flux and acting as a Current Source Inverter inductor.

A motor controller determines inductance and resistance values using current rise and fall times during an initial position detection interval.

Integrates operation parameter adjustment with maximum torque control by maintaining zero gamma-axis current, eliminating complex sequential calculations.

A DC bus current sensor monitors AC leakage through a capacitive shunt to detect ground faults in electric motor control circuits.

A centrifugal pump control device adjusts the motor load angle to increase drive speed beyond base limits.

A D-Q rotating reference frame control system transforms torque commands into positive sinusoidal signals using a negativity removal module.

Excitation control device modulates engine speed and rotor current to maintain constant output voltage and frequency in off-grid power systems.

Synchronous SVPWM control reduces converter switching frequency and output loss while maintaining harmonic quality in traction drives.

A data processor adjusts direct-axis and quadrature-axis current commands based on rotor position to maintain constant shaft torque output.

A frequency converter calculates total current from phase signals to monitor component thermal loads without extra sensors.

A 3-phase inverter control apparatus manages switching states to optimize harmonic frequencies.

A permanent magnet synchronous motor drive system segments power delivery across multiple independent phases to manage torque and flux current efficiently.

An I-Omega estimator transforms phase currents into direct and quadrature components to calculate torque values.

A control section adjusts inverter transfer characteristics using cross-terminal voltage detection to stabilize DC link operation.