Synchro-Waveform Conversion for Unsynchronized Power Quality Meters

The patent introduces an intermediary synchronization signal injection mechanism where a master clock generates synchronization signals that are injected into the power system through a coupling device. These signals serve as a mediator between the master clock and multiple slave clocks, enabling time synchronization without requiring expensive GPS receivers at each sensor location. The injection signal carries timing information that slave clocks can lock onto, achieving synchronization through this intermediary carrier rather than direct GPS reception.

The patent creates a copied timing signal by generating synchronization signals that replicate the master clock's timing information and distributing them through the power system infrastructure. Instead of each sensor independently receiving GPS signals, the system copies the master clock's timing pattern and propagates it through existing power lines and communication channels, providing a low-cost alternative to direct GPS reception at multiple locations.

The patent enables conventional power quality sensors to achieve time synchronization capability through self-service by equipping them with software-based synchronization algorithms. The sensors autonomously process the injected synchronization signals, extract timing information, and adjust their local clocks accordingly. This eliminates the need for expensive hardware GPS receivers while restoring time synchronization capability through intelligent signal processing and algorithmic time alignment.

The patent changes the operational parameters of conventional sensors by modifying their software to recognize and process the injected synchronization signal format. The sensors transition from operating with independent unsynchronized clocks to operating with synchronized timing by detecting signal characteristics, measuring phase relationships, and adjusting their sampling and timestamping parameters based on the master clock's timing information.