Electric Power Transfer Ac Network TRIZ Cases
- Anti-Parallel HVDC Converters for Reactive Power Control
Two line-commutated converters connect in anti-parallel to a single pole, enabling independent reactive power exchange via active power specifications.
- Model-Based DC Protection System Using Estimator Bank
An estimator bank compares measured values with dynamic system models to identify the current state of an electrical network.
- LCC HVDC Commutation Failure Mitigation via Parallel Capacitor Modules
Parallel capacitor modules discharge current to assist commutation, reducing AC fault failure risk and reactive power needs.
- Far-End Power Converter Fault Detection via Transmission Medium Modeling
A near-end power converter establishes a linear time-invariant model of the transmission medium to derive input operating properties from measured output signals.
- Series Adaptive Clamping for Subsea DC Power Grids
Series adaptive clamps regulate constant voltage on a single conductor to supply modular loads in subsea power grids.
- Star Point Reactor Suppression Filter for HVDC Harmonic Mitigation
A suppression filter connects to the star point reactor neutral point to minimize unwanted alternating current grid currents.
- DC Line Current Interruption via Zero Setpoint Control
Setting inverter current and voltage setpoints to zero dampens DC line oscillations, enabling cheaper switching devices.
- Inverter Generator Electrical Angle Estimation via ECU Pulses
An inverter generator estimates electrical angles using ECU pulses to eliminate additional sensors.
- Switch Mode Power Conveyor Circuit for Energy Harvesting
A switch mode power conveyor circuit transfers harvested energy from sensors to loads with high efficiency.
- VSC Fault Clearance via DC Circuit Interruption
A voltage source converter opens DC circuit interruption devices to isolate faults while maintaining AC network reactive power exchange.
- HVDC Fault Detection via AC Quantity Analysis
Analyzes alternating current quantities across conductors to identify specific fault locations in high voltage direct current transmission systems.
- AC Equivalent Model for AC/DC Hybrid Power Flow Analysis
Transforms AC/DC hybrid power flow analysis into a pure AC problem using an equivalent model, overcoming DC variable decoupling challenges.
- HVDC Tapping Arrangement Using Voltage Source Converters
Segmented voltage source converters with switching arrangements isolate local AC networks to prevent transmission interruptions during power tapping.
- Bypass Circuit Redirection for DC Short-Circuit Protection
A bypass circuit redirects DC short-circuiting currents away from converter cells using full-wave rectification and connection arms.