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54              Renewable Energy Devices and Systems with Simulations in MATLAB  and ANSYS ®
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                                                               Supervisory  command from  DSO/TSO
                                  Grid







                                            i g
                               P o  Q                           Reliability
                                            υ g              Energy storage
                                Filter           Grid synchronization  PV panel/plant monitoring

                                            PWM inv
                                Inverter                        Flexible power control




                                C DC        υ DC  DC-link υ DC  control  Basic control functions  PV system specific functions  Fault ride through  Advanced functions (ancillary services) General control blocks (control objectives) of a grid-connected single-phase PV system (PWM, pulse width modulation; MPPT, maximum power point
                                            PWM b

                              Boost  (optional)        Anti-islanding protection



                                C pv             Current/voltage control  Grid support (V, f, Q)  Harmonic compensation

                                            υ pv
                                  P pv      i pv       MPPT
                             PV panels/strings





                                    °C                Mission profile  Communication






                                           solar irradiance
                                             Ambient temperature
                                                                         FIGURE 3.18   tracking).
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