Control principle of wind power generation system 并列题名:Control principle of wind power generation system Control technology of wind power generation system Control technologies of wind power generator sets Grid connection technology of PMSG wind power generation system Source-grid interaction of wind power integration system 并列题名:Grid connection technology of PMSG wind power generation system Aero-derivative micro gas turbine power generation system The principle of geographic information system 并列题名:Aero-derivative micro gas turbine power generation system