To mitigate the impact of renewable energy fluctuations on the power grid and achieve a balance between flexibility and toughness in the multi- energy coupling system

a robust and flexible regulation strategy for the multi- energy coupling system considering wind and solar uncertainty is proposed. The strategy involves tapping into the flexibility resources of sources

storage

and loads

determining the day- ahead plan based on the linkage of these flexible resources

and conducting robust intra- day regulation considering wind and solar fluctuations. Finally

a simulation analysis is conducted on a regional system in Northeast China

comprehensively evaluating the effectiveness of the operation plan from the economic cost

peak shaving and valley filling

wind and solar absorption and low carbon emissions. The results show that the robust and flexible regulation strategy for the multi- energy coupling system considering wind and solar uncertainty can effectively enhance its flexibility and toughness. When the wind and solar conservation parameter is 10/5 and the wind and solar uncertainty parameter is?σw

t/σv

tσw

t?/σv

t??

the wind and solar absorption rate is increased by 1.57%

the economic cost is saved by 53.90%

the peak shaving and valley filling is reduced by 0.36%

and the carbon emission of low- carbon units is reduced by 15.57%.