where do you start? We first began to explore the underground garage lighting system. PV matrix output is DC, but DC is in the lighting system can be widely applied. Most modern energy-saving lamps originally for DC power, for example, tricolor energy-saving lamps, magnetic and semiconductor LED lamps insanity workout other lights, so if not for the grid inverter is not necessary. If the use of photovoltaic power generation system for the lighting system provides low voltage DC power so, how to improve the efficiency of the system do? Efficiency of the system is not simply rely on inverter part can be omitted to achieve. Photovoltaic power supply system to analyze only in respect to at least four areas to improve work efficiency, but has always been ignored. (1) solar angle matrix has been in accordance with the practice placement, the use of a balanced point of summer and winter, if the local conditions optimized for maximum power generation point of the year,
or do a limited revision management, an annual mac brushes of 10% of the electricity. But the inverse image of the substation to the needs of dense arrangement of panels, and even clean the surface dust and none left the space, resulting in a serious decline in power generation. (2) the maximum output power of PV matrix and line voltage to match, but from the roof of the introduction of different heights will produce different pressure drop, deviate from the maximum power point, which makes the production of finished north face denali according to standard solar panels do not meet the mac makeup of designed to be customized depending on the circumstances; the same time the recession of high-power solar array segregation, and against the power system substations are; low-light low-voltage power generation can not be ignored, in addition to selection panels, electrical control devices can also play an important set of effect. (3) Keep the battery plates clean and strive to improve the power generation capacity and transmission capability, reduce connection loss.
