THE PRINCIPLES REGULATING DEVICES AUTONOMOUS ELEKTROSNAB-TION-BASED PHOTOVOLTAIC CELLS
The principles of the coordinated control of Autonomous power supply system based on photovoltaic energy converters. In addition to solar cells with the device to obtain maximum power the system included storage batteries charge controllers, Autonomous voltage inverter and a diesel generator. The system elements are connected by an auxiliary direct current line. The output voltage of the converters can vary within wide limits regardless of the output device capacity. Therefore, their external characteristics is formed in such a way as to ensure the most effective interaction of the system elements. As an information parameter to determine the mode of operation used, the voltage of the auxiliary direct current line. Until the output current reaches the value at which the device is given the maximum allowed power, the external characteristic is formed under the law of the constancy of the capacity. Further implemented the stall prevention mode. If the voltage is above the rated voltage of solar cells, the system has excess power generated by solar cells, which is used to charge the battery. In the case when the voltage is in the range between the nominal battery voltage and a rated voltage of solar cells, the power generated by solar cells is insufficient to power the load and the fault is covered by the battery. When the voltage is in the range between the nominal voltages of the battery and the diesel generator, it connects and makes up for the lack of power produced by solar cells and batteries.