Generator Control Circuits TRIZ Cases

High current line side converter and dynamic brake transfer grid stabilizing currents to the rotor, eliminating crowbar torque peaks.

A wind turbine control method calculates a torque adjustment term to dampen transmission system vibrations during operation.

Segmenting the active compensator from the diode rectifier eliminates reactive power generation losses, reducing system weight and cost.

Controller raises dynamic brake DC bus voltage threshold during grid faults to absorb excess energy while blocking the power converter from damage.

Auxiliary permanent magnet generator replaces dedicated shaft resolvers to eliminate system complexity while maintaining measurement precision.

A converter controller adjusts DC link voltage based on rotor speed and line-side voltage to optimize power extraction.

A control method balances reactive current between a doubly-fed induction generator stator and grid-side inverter.

A controller extracts internal voltage distortion components from feedback signals to generate trim commands for the power converter.

Disabling the line-side converter during high voltage ride through events prevents hardware damage while rotor-side control maintains reactive power supply.

Decomposing grid signals into sequence systems enables separate feedback loops that eliminate torque pulsations during unbalanced grid voltage faults.

A controller generates a reactive current pulse command to boost transient response speed in wind turbines.

Absorption circuit suppresses voltage spikes when the active crowbar switches off, extending device life.

A virtual dynamic braking system regulates switching frequencies to dissipate energy through existing power converter components.

A wind turbine control method limits generator torque changes during virtual inertia recovery to maintain stable operation.

A DFIG wind turbine converter switches to an SSR control mode that freezes rotor AC voltages and adjusts controller gains.

A rotor control device with an inverter and capacitor bank manages the doubly fed induction motor.

A protection relay calculates root mean square values within a variable size window to measure low frequency signals from rotor and stator.

Dynamic virtual capacitance control resolves sub-synchronous oscillations in wind power systems by decoupling stability from fixed physical capacitor sizes.

Segmented constant frequency networks eliminate redundant power conversions, reducing weight and energy losses in aircraft electrical systems.

Segmented control loops manage reactive power allocation to reduce transient peaks while maintaining grid voltage compliance.

A wind turbine controller monitors power and voltage values to determine a limit cycle reference point for dynamic command adjustment.

Feedback linearization decouples positive and negative sequence components to maintain DC-link voltage stability during unbalanced voltage conditions.

A power converter control module reduces subsynchronous current amplitude using phasor-based reference frames to prevent grid faults.

Emulating a virtual synchronous machine coordinates inverter-based resources to maintain grid voltage and frequency stability under high renewable penetration.

A wind turbine generator controller selects a torque profile based on rotor acceleration to manage power recovery.

A secondary excitation control device corrects carrier frequency based on slip and impedance characteristics to reduce harmonic voltage distortion.

Adjusting operational power factor through converter reactive power support reduces generator heat loss.

Decouples reactive power control from voltage control to eliminate oscillatory responses, enabling faster reactive power compensation during grid fluctuations.

A power converter interfaces variable-speed renewable turbines to a fixed-frequency grid, maintaining stable electrical quantities.

Monitor rotor shaft voltage amplitude and frequency thresholds to detect lifted generator ground brushes, preventing bearing damage from electrical discharges.

A wind power generation apparatus calculates and outputs reactive power based on detected voltage fluctuations to maintain system stability.

A controller sets a fixed rotor current regulator output to manage DC link voltage during grid disturbances.

Hybrid energy storage modules buffer pulsed loads via inertial and electrochemical stores, reducing transmission line impedance and preventing overload damage.

Bidirectional power transfer between dual inverters eliminates slip rings, resolving maintenance issues while enabling four quadrant operation.

Rotor-mounted inverter modulates magnetic field frequency to produce independent variable AC power, eliminating heavy dual-stage conversion systems.

A power conversion controller generates source side switching signals using virtual impedance for system damping.

A DFIG rotor-side converter disables bridge switching to activate a dynamic brake for energy dissipation.

Symmetric control components modify d-q loop transfer functions to eliminate coupling frequencies and ensure positive damping in series-compensated grids.

Electrical damper converts mechanical torsional oscillations into heat via electromagnetic induction to stabilize generator shafts.

A rotor position determination method uses a feedback loop to adjust angle estimates based on generator voltage signals.

A first electronic converter connected to the rotor modifies synchronization speed to control power flow during stator disconnection.

A power converter control system adjusts DC link voltage set points to dampen sub-synchronous interactions.

A control system manages active neutral point clamped converter operation by dynamically adjusting modulation indices and DC link voltages during semiconductor faults.

Coordinated inverter control synchronizes generator-side and grid-side units to prevent overloading and support network voltage during faults.

Dynamic lockout times adapt to real-time conditions, reducing harmonics and control delay while protecting switching elements.

A bidirectional inverter limits active power exchange with the rotor to less than 0.3 times nominal power.

Controller triggers short-circuiting when voltage drops below threshold, preventing breaker DC-interruption during grid faults.

A wind turbine system integrates a dedicated reactive power compensation device to manage oscillations between the generator and the compensator.

Hierarchical wind farm control eliminates expensive three-winding transformers by using cluster-level controllers for localized reactive power management.