IMPROVEMENT OF POWER QUALITY USING 11-LEVEL CMC BASED DSATCOM WITH OPTIMAL HYBRID MODULATION SCHEME
Keywords:
Cascaded H-Bridge Multilevel Inverter (CHB);Instantaneous Real-Reactive Power Theory (IRP Theory); Hybrid Modulation Scheme; Cascaded Multilevel Converter (CMC); Total Harmonic Distortion (THD).Abstract
Enhancement of power quality features is the superior attention in power system advanced component, situations such as harmonics, reactive/active power exchange, and correction of power factor, balance the load condition & so on, due to higher effect on greater sensitive/nonlinear loads are to be advocate in distribution system. To amplify these situations, advanced custom power contraption are required, in that CMC based 11 level D-STATCOM is a precise high power appliance for mitigating the harmonic distortions coming from high power semiconductor switching device, exchanging the both active & reactive power, improve power factor and to regulate the power quality issues in power distribution network. This work highlights a new spawn of multi carrier modulation technique is called as hybrid modulation scheme, is supported to evaluation of proposed CMC applications to DSTATCOM for getting favourable advantage nothing but very low amount of THD at (Vo) output voltage as compared to formal modulation schemes like (PSHM) phase shift and level shift (LSHM) switching schemes and reference currents are founded by IRP methodology and proposed advanced system is evaluated dynamically with Matlab/Simulink environment.
