An evaluation index system for hybrid wind/PV/energy storage power generation system operating characteristics in multiple spatial and temporal scales

The statistical analysis of the characteristics of hybrid wind/PV/energy storage power generation system is a basis work for researching of optimization of system operating mode and intermittent energy connected to grid. The paper classified the characteristic indexes of wind power, photovoltaic, energy storage and hybrid power generation system systematically, and built a hybrid wind/PV/energy storage system characteristic evaluation index system for multiple spatial and temporal scales. The index system could be divided into two levels, the equipment level and the interaction with grid level. The former regarded the natural resources or equipment characteristics of itself as the analysis object, meanwhile the latter described the indexes which reflected the interaction with wind/PV/energy storage equipment and the interaction with grid. Each category of the indexes consists of core indexes and derivative indexes. At last, using data from the hybrid wind/PV/energy storage power generation system as an illustration, the paper analyzed typical indexes quantificationally in multiple spatial and temporal scales to prove the rationality of the index system and its establishing method. Then it analyzed the main characteristics of combined operation mode intuitively and quantitatively and illustrated the advantage of the combined operation mode with the analysis results.