Department of Navigation Systems

Charger E148 using solar or wind energy                                       The lifetime and capacity of a battery used in secondary power supply systems strongly depends on the operating conditions and on the charging process. This is  particularly important when using solar and wind energy due to irregularity of supply. For instance, the amount of available solar energy during the winter months is very small and solar powered systems may need to operate using the energy accumulated in summertime. Therefore, the charging system has to maintain the batteries as fully charged as possible while not overcharging them. Overcharging would lead to boiling out of the electrolyte and resultingly, to damage to the batteries. Cybernetica AS has applied special efforts to find  the most efficient methods of charging the batteries and, as a result, the microprocessor controlled optimizing battery charger E148 has been developed. The purpose of this charger is to guarantee the continuous power supply of autonomous systems using solar and/or wind/wave energy for charging the lead or gel batteries. When optimizing  the charging procedure the type, nominal voltage, capacity, and the charge  factor of the battery as well as the temperature of the ambient air are taken into consideration. The optimization will be performed using an algorithm in the firmware of the microprocessor. The Solar Charger E148 is ready to  be integrated into a remote control and monitoring system for utilization of its diagnostics capabilities.

Features charging of lead or gel batteries of nominal voltage 12 V with the capacity from 30 up to 999 Ah using solar, wind or wave energy. The voltage converter of the charger follows the voltage of the battery and optimizes the charging process. The charge factor will be determined by the microcontroller  measuring  the current, voltage, and temperature of the battery periodical checking discharges and formation of the battery to be initialized either locally by the maintenance software, or remotely by the control and monitoring system heating of the battery when the temperature of it lowers below 0°C  until it raises up to +3°C (in case there is enough energy available in the battery) sending of emergency and diagnostic messages to the control and monitoring system about the voltage,  temperature and charge factor of the battery and accumulated charge during the last twenty-four hours storing of statistical data about the last 8 changes of the state of the battery and 512 diagnostic records about mean voltage and  current of the battery and energy sources

            Technical specifications