In order to realize the consumption of renewable energy and ensure the economic operation of conventional thermal power plants

a wind-solar-power storage-coal-fired multi-energy complementary system is proposed. On the basis of considering the complementarity of wind power and photovoltaic

the influence of adding storage battery is also considered. By taking 2×350 MW coal-fired power units as the example

through theoretical analysis

the mathematical model for the multi-energy complementary system is established

and the system parameter optimization design method is proposed from four aspects such as single consumption

complementary consumption

wind power capacity optimization and auxiliary power storage regulation. The results show that

for the single absorption method

the total absorption of wind power accounts for 1.45%

its capacity is set at 13 MW

the total absorption of photovoltaic accounted for 3.2%

its capacity is set at 49 MW. After adopting the coupling wind-solar complementary absorption mode

the total absorption of new energy power can reach 4.2%

the wind power capacity is 11 MW and the photovoltaic capacity is 45 MW. Through further optimization of wind power capacity

the consumption ratio of new energy power can be further improved to 6.91%. On this basis

by setting specific battery parameters

the new energy consumption ratio can be increased by 22.55%. The research result can provide reference for adapting to the insertion of high-proportioned and intermittent of new energy power.