Electric Power Transfer Ac Network TRIZ Cases

Series-connected on-load tap changers split control windings to expand transformer tap range and stage count without higher voltage or current demands.

A ground-level motor drives an elevated generator through an insulated shaft to pre-charge HVDC breaker subsystems across the isolation gap.

A polarity-switching submarine DCDC converter serves both positive and negative outputs, cutting spare units while maintaining power supply.

An insulated shaft links a ground-potential motor to a live-side generator, enabling fast auxiliary power delivery for HVDC breaker switching.

Optimized converter pulse patterns constrain DC-link voltage peaks and interharmonics, cutting capacitance needs while meeting grid limits.

Distributed SST units placed at each cabinet cut low-voltage bus length, reduce line loss, and simplify data center power architecture.

Model-based estimation and feedback compensate remote signal delay and grid variation to keep transformer substation control stable.

A combined timing and data broadcast keeps distributed modules synchronized at high switching frequencies without separate signal paths.

Uneven chain-link module counts let one converter withstand transient faults while others cut cost, footprint, cooling, and maintenance.

DC voltage modulation carries frequency control signals between HVDC stations, sustaining active power control when dedicated links fail.

A parallel-branch converter station cuts HVDC fault downtime by isolating one branch and restoring power transfer through the healthy path.

Phase-angle control in grid-forming HVDC bipole converters balances DC current between conduits to cut losses and return-path maintenance.

A series LCC-MMC rectifier and distributed inverter layout stabilizes weak AC grids, prevents commutation failure, and supports flexible power flow.

Series bidirectional AC/DC converters and a current divider lower interface voltage ratings, cutting microgrid interconnection size and cost.

Current change ratios from local HVDC measurements identify faulted conductors and locate faults quickly despite electromagnetic coupling.

Dynamic target voltage control lets a voltage source converter switching valve keep operating as healthy modules drop, avoiding trips and extra redundancy.

Unbalanced-component detection limits AC current during open-phase faults, avoiding converter shutdown and enabling fast recovery.

AC voltage vibration detection lets the converter retune control parameters to prevent hunting and regular oscillation in shared AC systems.

A controller isolates a faulted HVDC branch by reducing converter AC voltage and switching paths, allowing rapid power transfer recovery.

Converts asynchronous AC and DC inputs into a common HVDC bus so underused capacity can be recovered and sustainable sources integrated.

A resistor-transistor protection circuit limits auxiliary power short-circuit current in battery packs while reducing component count and cost.

Uses group-based comparison of matching converter or ESS components to detect degradation from existing electrical measurements without extra hardware.

Selecting the AC system with the largest power supply margin lets converter start-up proceed while limiting supply-demand imbalance.

Direct solar connection to a converter link circuit enables MPPT by link-voltage control while flexibly sharing power between two AC grids.