Reactive Power Compensation in High Power Applications by Bidirectionalcasceded H-Bridge Based Statcom
In this paper, a simple static var compensating scheme using a cascaded two-level inverter-based multilevel inverter is proposed. The topology consists of two standard two-level inverters connected in cascade through open-end windings of a three-phase transformer. The dc-link voltages of the inverters are regulated at different levels to obtain four-level operation. The simulation study is carried out in MATLAB/SIMULINK to predict the performance of the proposed scheme under balanced and unbalanced supply-voltage conditions. Index Terms— DC-link voltage balance, multilevel inverter, power quality (PQ), static compensator (STATCOM).
PROTECTION DEVICE FOR A TELEVISION RECEIVER INTERRUPTING SUPPLY CIRCUIT OF THE RECEIVER INCLUDING THE CIRCUIT SWEEP HORIZONTAL INCIDENT. DEVICE INCLUDING MEANS DELAY 35, 38 TO DISCONTINUE Do CIRCUIT AFTER DETECTION OF ABSENCE OF A TIME AT LEAST ONE PREDETERMINED TIME T IS REPRESENTED BY VOLTAGE TERMINAL CAPACITOR 35 SE LOADING, WHEN APPEARANCE OF A DEFECT, ONLY oCCUR WHEN THE PERIODIC IMPLUSIONS SHORT-TERM IN RELATION TO THE PERIOD AS THE PULSE RETURN SWEEP HORIZONTAL.