Dc-Ac Conversion Without Reversal TRIZ Cases
- Inverter Ripple Compensation via Synchronous Frame Filtering
A compensator senses DC and AC currents to extract ripple components using coordinate transformation.
- SiC MOSFET Inverter Phase Coordination for High Current
Silicon carbide MOSFETs enable direct phase connection in parallel inverters, resolving non-deterministic switching delays that limit maximum load current.
- Parallel High and Low Frequency Inverter Ripple Compensation
Parallel inverters adjust high frequency switching duty ratio to compensate for ripples, reducing large inductance requirements and enhancing dynamic response.
- Power Conversion Device Suppressing Waveform Distortion
A power conversion device generates a zero-phase voltage command using a two-phase modulation scheme and a third harmonic component.
- Inverter Controller Reference Voltage Adaptation
Dynamic reference generation prevents modulation index saturation and integrator windup during DC voltage sags.
- Hybrid Multilevel Inverter Adaptive Topology
A hybrid inverter system merges three-level and five-level structures to optimize power conversion efficiency.
- Dual-Structure Power Cell Inverter for High Voltage
A dual structure power cell inverter connects two low voltage units in series to handle high input voltages using existing switching mode power supplies.
- Isolated Switched Source Inverter Topology
A transformer-less inverter topology uses a source switching multiplexer to combine independent power converter modules for universal AC output generation.
- Hybrid Converter Harmonic Suppression via Modular Submodules
A hybrid converter uses modular submodules to generate inverse voltage for harmonic mitigation.
- Inverter Switching Circuit for Stable AC-DC Output
Dual switching circuits bridge input terminals during transitions to eliminate waveform fluctuations and ensure stable output voltage quality.
- Three-Level Inverter Current Balancing via Pulse Delay
A three-level inverter unit balances output currents using bidirectional switches and ON signal delay circuits to adjust pulse widths based on detected deviations.
- Integrated Inverter and Clamping Circuit Package
Integrated substrate merges inverter and clamping circuits to reduce current path impedance, ohmic loss, and voltage fluctuation noise.
- Power Conversion Device Impedance Control for Parallel Power Allocation
A power conversion device adjusts output impedance using a voltage correction amount calculated from reactor current to ensure uniform power allocation.
- Duplex Control Device for Modular Power Converter
A duplex control device manages sub-module operations through active and standby systems, enabling seamless switchover during abnormality detection.
- Multilevel Converter Voltage Balancing Control
Power conversion device reduces calculation complexity and prevents overvoltage during grid abnormalities by balancing DC capacitor voltages between arms.
- Power Converter Diagnostic System Using Current Change Amount
A diagnostic system calculates current change amount per unit time to determine power converter state using a dedicated calculation circuit.
- Cell Capacitor Voltage Determination in Multi-Cell Power Converters
Integrating voltage measurement into gate units determines cell capacitor voltage, eliminating separate hardware and reducing system complexity.