@article{paperid:1069866, author = {Heydari Doostabad, Hamed and Ghazi, Reza}, title = {A new approach to design an observer for load current of UPS based on Fourier series theory in model predictive control system}, journal = {International Journal of Electrical Power and Energy Systems}, year = {2019}, volume = {104}, number = {1}, month = {January}, issn = {0142-0615}, pages = {898--909}, numpages = {11}, keywords = {Model predictive control (MPC) Uninterruptable power supply (UPS) Load current observer (LCO) 3-Phase inverter LC filter Luenberger observer}, }