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.