[1] School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou,730050, China
[2] Gansu Key Laboratory of Biomass and Solar Complementary Energy Supply System, Lanzhou,730050, China
[3] School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou,730050, China
[4] Tiandi Shanghai Excavating Equipment Technology Co., Ltd., Shanghai,200030, China