Distribution system compensation using a new binary multilevel voltage source inverter

A new binary multilevel voltage source inverter with separate de sources is proposed. This n-level voltage source inverter produces a (2(n+1) - 1)-ste ps ac voltage output with n full bridge inverters connected in series. The use of selective harmonic elimination modulation technique to either comple tely eliminate or minimize harmonics is studied. A closed-loop controller t o control the capacitor voltages and adjust the inverter reactive power out put is developed. Application of such a, compensator for dynamic compensati on of 13.8 kV distribution system is examined through transient studies usi ng PSCAD/EMTDC program. The proposed inverter configuration not only reduce s the system complexity and its size, but also improves the harmonic profil e significantly.