Technical diagnosis of installations with autonomous photovoltaic systems in communities of the Guamá municipality, province of Santiago de Cuba
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Abstract
The technical diagnosis of the Autonomous Photovoltaic Systems, SFVA, installed in the Popular Councils of the Guamá municipality, province of Santiago de Cuba, Cuba, which group different types of applications for rural electrification, such as: houses, family doctor's offices, schools, TV rooms, water pumping and producers' farms, among others, is approached.
Of a total of 508 SFVA diagnosed, 67 SFVA (13 %) are operating in good condition (day and night) and 441 SFVA (87 % of the diagnosed installations) have some type of failure in one of their components. Out of service are 269 SFVA, representing 53 % of the total diagnosed installations. The most affected are the accumulation batteries, with a total of 1109 units out of 1233 out of service, for a 90 % of affectation. Photovoltaic (PV) applications for water pumping show a favorable behavior, with 85 % of the installations in operation.
As a result of the simulations performed for each type of SFVA design, the existing incompatibility is identified, regarding the voltage ratio of the PV generator with respect to the maximum voltage admitted by the Load Regulator at its input.
The interviews conducted with the users reflect a low level of inspection and/or maintenance actions by qualified personnel, which favors the deterioration of the installations.
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