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Fig. 12.2 Scheme of connections to regulate the operating point of the electrolyzer
Fig. 12.3 Activation of OPC server in WinCC flexible runtime
Fig. 12.4 Diagram of communication structure between Simulink, WinCC and the PLC
12.3 Fuzzy Logic Controller
The control objective of the proposed strategy is to regulate the operating point of
the PEM electrolyzer. This point depends on the system conditions such as energy
availability from the PV generator, from the battery state of charge and others. As
commented before, a DC-DC converter carries out the conditioning of voltage and
current levels provided by the PV modules to the electrolyzer ones. The PLC applies
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