A sensorless active rectifier turns variable turbine AC into constant DC downhole, avoiding flow-kit swaps and drilling downtime.
Battery-fed pre-excitation and breaker diagnostics help a vehicle generator start reliably despite weak residual flux and brush contact faults.
Switching generator control from voltage feedback to speed-based mode during load impacts cuts torque peaks, limits engine speed drop, and speeds recovery.
A DC source bridges weak PMG output at low speed, then switches to rectified PMG power to keep synchronous generator excitation stable.
A control unit adjusts rotor supply voltage by speed and temperature to raise alternator power density and step load response.
An adaptive control system dynamically adjusts engine speed based on output power thresholds to optimize fuel efficiency.
An adaptive power system stabilizer dynamically adjusts control parameters to dampen rotor oscillations in generator systems.
Pre-magnetizing the transformer core and timing switch-on to the mains phase angle minimizes inrush currents without complex remanence measurements.
Segmenting local and remote modes resolves the contradiction between ease of remote operation and fuel conservation during extended power outages.
A wind turbine current controller injects harmonic currents to reduce generator noise and vibration.
Electronic governor monitors alternator voltage frequency to adjust engine throttle, maintaining stable output while reducing noise and complexity.
A hybrid electrical generation system combines variable and constant frequency generators driven by a single gearbox.
A DC crowbar controller regulates bus voltage using a switching device and resistor to protect power converters.
A generator control unit varies excitation voltage to dampen torsional oscillations in the mechanical drivetrain.
A progressive charge return signal updates to a stabilized excitation current value, adjusting duty cycle progression during alternator operation.
A reset control locking condition determination unit monitors voltage and current conditions to permit safe operation of overvoltage suppression devices.
A control unit determines a speed reference value by combining actual engine load with a load reference value to optimize generator set operation.
Control method for rotating electrical machines maintains excitation current above zero during mode switching to ensure continuous DC delivery.
Analyzes rotational speed variations to detect torsional oscillations, preventing fatigue damage and catastrophic failures in prime mover systems.
A progressive excitation control system adjusts alternator load duty cycles to maintain stable voltage supply across vehicle electrical networks.
Monitoring electrical variables enables anticipatory power output reduction, preventing uncontrolled shutdowns caused by delayed mechanical speed detection.
A generator load state detection method calculates a power imbalance value by comparing actual load power with target output power.
A generator speed controller adjusts adaptive control gain values to manage rotational velocity fluctuations in heavy equipment.
A soft-start voltage regulator circuit uses discrete active and passive components to establish generator voltage during starter engagement.
An engine generator set control system modifies electrical output voltage and frequency through an integrated output selector mechanism.
A control scheme adjusts the block commutation angle to limit starting currents in multi-phase machines.
A control circuit detects zero crossing points to trigger MOSFET switching.