Control of a Boost Converter to Improve the Performance of a Photovoltaic System in a Microgrid

Abstract

In this work, the analysis of a CD-CD converter type Boost is presented. This converter works in Discontinuous Conduction Mode; In addition, the design of its control loops is performed, using an Average Current Mode control. The Boost converter is part of a photovoltaic generation system using solar panels. The photovoltaic system is established in a microgrid, with which the inverter works in grid mode and island mode. The main objective of the Boost convertor is to raise and regulate the voting from the solar panels to feed a single-bridge full-bridge inverter. The controllers designed for the boost converter are validated by simulation. The results obtained prove that the designed controller has an acceptable transient response to disturbances in the system input and adequately analyzing overdrafts and establishment times when disturbances are generated.

Development and Application of a Reconfigurable Photovoltaic Inverter for Operation Within a Microgrid

“…Finally, an external stabilization ramp (S B ) is compared with the output signal current controller, used to trigger control of the converter power switch. The modeling and design of the Boost converter is presented in detail in [39]. The waveforms of the Boost converter for the operation mode grid-connected are presented in Fig.…”

“…Table 3, reports the designs and values of the controllers obtained for inverter in grid-disconnected operation (island mode). Details on the adjustment of some of the controllers in island mode can be found in [39], [50]. Particularly, the integral sliding mode control design for this operation mode, it was reported in the previous section.…”