In 2011 April, Guangdong Mobile Corporation carries on a more exhaustive testing of DC generator, DC electrical load capacity index, intelligent control parameters of a number of indicators such as test equipment selection, with the same power output AC generator and DC generator, and focused on the comparison test. Test conclusion: in emergency communication base station, DC generator compared with AC generator, has obvious advantages; able to cope with all kinds of extreme power supply environment; DC generator has the advantages of small volume, light weight, good fuel economy and other characteristics; application test of DC generator, volume, weight, load capacity, DC output power has obvious advantages in technical indicators, modular design, unit output redundant parallel expansion ability, control and management of Intelligent DC generator set gasoline GS series gasoline type module of Wuhan Dragon parallel DC power system compared to other manufacturers.