The large-scale and efficient use of new energy has become a major requirement to build a clean and efficient energy system and achieve the strategic goal of carbon neutrality. This paper integrates wind power

photovoltaic and solar thermal power generation to a comprehensive wind-solar-storage energy system. It intends to stabilize the fluctuation of wind power and photovoltaic through the controllable solar thermal power

and then realize the smooth output of electric power. This paper establishes a mathematical model of the system's key equipment

and studies the real-time response characteristics of the system under variable operating conditions with time-varying wind and solar resources. On this basis

this paper formulates an active regulation strategy for molten salt heat storage to stabilize wind power and photovoltaic power. The simulation results show that

compared with a single wind power and photovoltaic power station

the load following ability of the wind-light-storage energy system is significantly improved

the load following matching degree is increased from 78.94% to 93.90%

the energy utilization rate is increased to 19.68%

the electricity abandon rate is decreased from 18.51% to 0.96%

and the load fluctuation is reduced from 120 MW to about 25 MW.