ABB's PLCs will control ABB variable speed drives, which orientate the photovoltaic modules across two axes to achieve maximum exposure to the sun throughout the day.
June 26, 2008 - Solar power plants using solar trackers typically generate 30% more energy than fixed systems and ABB is helping by contributing intelligent automation solutions. ABB's product portfolio includes all key components for operating the solar tracking systems, with the PLC in control.The function of the PLCs is to control the ABB variable speed drives, which orientate the Photo Voltaic modules across two axes in order to achieve maximum exposure to the sun throughout the day. The PLC seeks the input from the sun and tracks its pattern along every day of the year. In case of a windy or snowy day, the PLC and drive place the position of defense (vertical or flat).