TZSI-Infused Adaptive Voltage Conditioning via High-Precision Vectorial Modulation

This paper presents a TZSI -Infused Adaptive Voltage Conditioning Topology to substantially refine the power characteristics in a grid-connected solar power setup at the Coupling Node, which is critical for mitigating disturbances and ensuring stable operation. In this approach, conventional VSI Inverters are replaced with TZSI, which offers remarkable advantages such as bidirectional voltage conversion, a wider electric potential gain range, reduced passive component requirements, and lower electric potential stress on the switching devices. To optimize the detection and compensation of voltage anomalies, while minimizing harmonic distortions in the injected voltage, a high-precision vectorial modulation framework with hierarchical multi-stage boost optimization (UVF-OCBC) is adopted. The architecture’s efficacy is thoroughly evaluated under challenging conditions, including harmonic-rich voltage dips, swells, and interruptions. To validate the effectiveness of TZSI, the system is evaluated through extensive MATLAB-based simulations and comparative analytical studies.