The coordinated operation of multi-energy complementary power generation is gradually becoming the future development direction of power system

and it is also very important to accurately analyze the complementary characteristics of the power system. Based on the operation characteristics of multi-energy complementary power generation system

the evaluation of index characteristics analysis of hybrid wind-solar-hydro power generation system are constructed through the combination of sub-system evaluation index and complementary system evaluation index by the complementary coefficient. The index frame is constructed

which is suitable for the analysis of the complementary characteristics of hybrid wind-solar-hydro power generation system. Based on the framework

the characteristics of wind farms

photovoltaic power plants and hydroelectric power stations in Western China are analyzed. The results show that the active power output characteristics of hybrid wind-solar-hydro power generation system can keep the system load tracking well and have strong intraday complementarity.