s to verify the technical feasibility of the proposed system. The CPU supplies a maximum voltage of 24 V DC, at a current
of 10 A, supplied by a wind/PV/battery hybrid energy system. The prototype is of a smaller size compared to the actual
proposed system. However, the architecture is maintained. The CPU is controlled by a microcontroller, which regulates the
voltage output of the hybrid system, using the PWM technique. Furthermore, the system uses a fixed potential concept, to
manage the controller. Moreover, remote monitoring is being experimented with, where the unit monitors the voltage, current
and upload the readings on the Cloud storage, for remote accessibility. The experimental results, therefore, confirm that the
combination of solar and wind resources with battery storage can be employed for the operation of CPUs.
⃝c 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license
Funding
The authors are grateful for the financial support from the Central University of Technology, Free State.