System combining carbon sequestration and microalgae biological carbon sequestration and control method thereof

The invention discloses a system combining carbon sequestration and microalgae biological carbon sequestration and a control method thereof.The system comprises a microalgae biological carbon sequestration part, a seabed geological sequestration part and a control system, and the microalgae biological carbon sequestration part comprises an Eos bioreactor, a heat dissipation and heating device, ventilation equipment and CO2 adsorption and release equipment; when the concentration of CO2 in the Eos bioreactor is too high, the heat dissipation and heating device, the ventilation equipment and the CO2 adsorption and release equipment are started; when the CO2 concentration is too low, the CO2 adsorption and release equipment releases CO2, and meanwhile, CO2 sealed by the seabed geological sealing part is extracted and supplied to the Eos bioreactor. According to the control method, system control is carried out on the basis of parameter values determined by an optimization model and an algorithm, and the maximum