Active Power Filtering TRIZ Cases
- Power source quality management system and air conditioning apparatus
See how operation limiting prevents power overload when active filters fail, protecting facilit
- Active Filter Load Detection for Multi-Device Harmonic Suppression
See how a built-in active filter detects external load information to suppress harmonic current
- Zero-Sequence Current Balancer With Real Power Injection
Real power injection regulates CMMI capacitor voltages to suppress zero-sequence and neutral current imbalance in three-phase grids.
- Active Filter Phase Correction for Variable Harmonic Impedance
Phase-corrected harmonic voltage control lets an active filter suppress harmonics even when grid impedance shifts between inductive and capacitive.
- 3-Leg Single-Phase Inverter Topology for Smaller Power Filters
A third inverter leg cancels PWM ripple, cutting grid filter size while maintaining low THD and reducing EMI in single-phase inverters.
- Power Quality Grading Using Harmonic Current and Voltage Compensation
Adjusted harmonic current and voltage compensation improves grid power quality grading accuracy and response speed under varying conditions.