International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 182 - Number 25 |
Year of Publication: 2018 |
Authors: Ming Chen, Abdissa Chala Merga, Gil-Soo Kim, Kil-To Chong |
10.5120/ijca2018918081 |
Ming Chen, Abdissa Chala Merga, Gil-Soo Kim, Kil-To Chong . A Modified Controller for Three-Level Three-Phase Voltage Source Inverter based on Laguerre Functions. International Journal of Computer Applications. 182, 25 ( Nov 2018), 21-28. DOI=10.5120/ijca2018918081
The three-phase voltage source inverter has been widely used in a number of industries in the recent years. Although the control technique of the three-phase voltage source inverter has been growing toward maturity, research into obtaining a better steady-state performance is still a hotspot. In this paper, a modified controller is proposed to control the three-level, three-phase voltage source inverter with a resistive-inductive load. The controller uses Laguerre functions to modify the model predictive control in order to reduce the computation burden and obtain more precise results. Then the required reference voltage can be calculated by the modified model predictive control with the voltage detection of the load and the current compensation. The required reference voltage will be used to determine the switching sequences by space vector pulse width modulation. Extensive experiments demonstrate that the modified controller can help a three-level, three-phase voltage source inverter with resistive-inductive load to achieve low total harmonic and better steady-state performance.