A Five Level Modified Cascaded H-Bridge Inverter STATCOM for Power Quality Improvement

Multilevel converters have received serious attention on account of their capability high voltage operation, efficiency, and low electromagnetic interference. It has many advantages compared to conventional two-level inverters such as dc-link voltages, reduced harmonic distortion, fewer stresses, interferences. The multilevel been used for STATCOM widely it can improve the power rating compensator make suitable medium or high-voltage applications. While deploying STATCOMs, designer’s role is reduce number switching devices since, total losses are proportional devices. reduction in count also reduces size cost. In this paper, a five-level modified cascaded H-bridge inverter proposed mitigation harmonics. Modified Five-level CHB configuration most with lesser switches, give better performance resulting compact system. PQ theory-based controller developed control operation. MATLAB simulation results presented demonstrate