An Effective Switched-Capacitor Based Thirteen Level Inverter with Low Total Harmonic Distortion

A new competent switched-capacitor based thirteen level inverter (TLI) is suggested in this paper which originates thirteen voltage levels within the yield with lower total harmonic distortion (THD) and lesser number of components. The proposed TLI is designed with nine control semiconductor switches and six capacitors along with a dc voltage source. The thirteen voltage steps are created by distinctive conceivable combinations of the capacitors and the dc source utilizing the control switches. Here, maximum two switches conduct in any mode, which comes about in diminished conduction losses in this way moving forward the framework effectiveness. Another imperative highlight of this design is the small total standing voltage (TSV) of the utilized control switches. In addition, to diminish the switching loss of the control switches, the gate signals are shaped in low switching frequency. Besides, a high switching modulation scheme is also described, where THD can be decreased to 3.71 % by utilizing an LCL filter. To approve these schemes, several simulations are executed in Matlab Simulink. The proposed inverter has been compared with the existing proposals and found that the required control components and dc source of the proposed design are significantly lower. Eventually, the suggested TLI structure could be utilized in renewable energy frameworks to implement an efficient power conversion process.