Generator Control Circuits TRIZ Cases

Overmodulation control reduces energy losses and harmonic propagation while maintaining power regulation.

Dynamic stator voltage reduction prevents high rotor voltage damage at low speeds, expanding the operational range and increasing power production.

Adaptive controller gains adjust based on slip and modulation index to minimize DC and AC unbalances in wind turbine power conversion systems.

A rotor side compensator with a specific transfer function counters negative resistance in double-fed induction generators.

A brushless exciter system segments field windings into d-q axes to enable mode switching.

An adaptive resonance damping system adjusts torque commands based on real-time grid conditions to counteract mechanical resonances in wind turbines.

A phase-locked loop adjusts parameters based on measured grid voltage to maintain synchronization.

A control sub-system connects rotor-side and line-side converters in parallel to optimize power flow between the DFIG and auxiliary sources.

A doubly stator-fed synchronous generator uses separate three-phase and excitation windings on the stator to drive a slotted rotor.

A controller calculates maximum reactive current based on generator speed and voltage conditions to manage power converter operation.

An inverter converts variable frequency voltage from a variable speed generator, allowing the engine to reduce fuel consumption and noise under partial loads.

Auxiliary-unit breaker tolerates transient currents during grid faults, enabling continuous auxiliary unit operation and preventing converter disconnection.

A variable speed machine assembly uses a magnetically geared generator and an exciter to produce constant frequency power.

A frequency converter injects damping currents derived from grid voltage measurements to suppress subsynchronous resonance.

A controller adjusts secondary exciter direct-current circuit voltage to supply driving electricity for generator-motor startup.

Segmenting the power system into clusters with partial transformers enables selective fault isolation without expensive three-winding units.

Dynamic DC-link voltage adjustment increases output voltage amplitude while minimizing IGBT transistor lifetime reduction and grid pollution.

A doubly-fed AC generator system converts variable-frequency output to fixed DC using a poly-phase transformer and uni-directional rectifier circuit.

A control system distributes reactive power between a stator and network side converter to manage thermal loads.

Variable speed control synchronizes parallel generators without mechanical coupling, resolving fuel efficiency and complexity trade-offs.

A converter control method applies a droop function to grid parameters for fast power response.

Causality diagrams map dynamic energy flows to locate specific component oscillation sources, resolving imprecise generator-level identification.

A control system for doubly fed asynchronous generators manages rotor currents and absorbs initial energy during grid faults.

An exciter machine isolates the power converter from grid faults, maintaining stable voltage and preventing DC bus damage during low voltage events.

Dynamic spillover gain shifts reactive current to the line side converter, overcoming static gain limits.

A method calculates DFIG leakage inductances by controlling rotor and stator currents to near zero for precise parameter extraction.

Dynamic scaling of the proportional gain constant reduces PLL synchronization recovery time during grid events while maintaining system stability.

Overvoltage clipping device couples transformer terminals to prevent component damage during grid voltage fluctuations.

Isolates power converters from the grid to eliminate harmonic distortion and reduce mechanical stress in variable speed wind turbines.

Adjusting second field winding current varies front end accessory device speed, resolving driveline efficiency losses from fixed mechanical clutch systems.

Segmented filter design minimizes common mode voltage at the battery while reducing component size and cost.

A controller estimates filter capacitor current using bandpass filtering for sensorless generator operation.

A negative sequence regulator calculates desired current responses for power converters in wind turbine systems.

Electronic commutator controls rotor magnetic field rotation to generate stable electricity from variable speed spools.

A doubly-fed asynchronous AC generator drives variable speed prime movers through separate stator and rotor circuits connected to distinct AC buses.

Switchable dual converters in a variable frequency generator maintain grid frequency stability by limiting generator slowing under fluctuating load conditions.

A wind turbine generator shifts to current mode during grid faults, regulating active and reactive currents via closed control loops.

Dynamic frequency adjustment limits junction temperature variations to extend converter lifespan.

Tap changer regulates transformer ratio to prevent over-voltage during reactive power provision.

A virtual impedance system configures dynamic control parameters for double-fed wind turbine generators to stabilize grid voltage and frequency.

Segmented voltage link converter eliminates duplex chokes and transformers while maintaining harmonic limits through dynamic short-circuit current management.

A DC link voltage control system adjusts set points based on rotor speed to maintain steady-state operation in wind turbine power converters.

A doubly-fed induction generator system operates as a motor or generator to balance mechanical power in multi-shaft gas turbine engines.

A voltage supply adjusts stator coil voltage to control magnetic flux levels in asynchronous wind turbine generators.

Dynamic current limit adjustment for transformer windings based on real-time electrical conditions resolves fixed rating bottlenecks to optimize energy capture.

An active damping control method stabilizes DFIG converters by tracking stator oscillation components and adjusting energy compensation branches.

A control system for variable speed pumped storage hydropower uses secondary excitation and flow rate adjusting valves to manage generator-motor output.

A wind turbine torque limiter adjusts generator torque setpoints to increase electrical power feed-in during boost modes.

Rotor side converter uses pulse width modulation to inject non-zero DC component, reducing rotor speed without adding mechanical braking hardware.

Dynamic generator control adjusts current and temperature limits via voltage ratios, resolving reliability-adaptability trade-offs.