The invention relates to the technical field of solar
simulation adjustment, and discloses an intelligent controllable method and
system for simulating dynamic change of solar
radiation. Long-term
irradiation data are obtained from a
database and a local
weather station and fused, the discontinuity of the daily boundary is overcome by applying a circumferential mapping and clustering method, and the maximum daily
radiation intensity, the typical
sunrise moment and the
sunset moment of each month are obtained; on the basis, constructing an attenuation model taking a monthly typical value as a benchmark, introducing random disturbance and physical constraints conforming to meteorological statistical characteristics, generating intra-month daily
simulation parameters, further utilizing a trigonometric function improvement model to dynamically represent the daily
simulation parameters of the current month as target
irradiation intensities at all moments, standardizing the target
irradiation intensities and mapping the target irradiation intensities into command control quantities, and calculating the target irradiation intensities. Precise
reproduction of the natural solar
radiation curve by the illumination intensity is realized; then actual
light intensity is detected through an irradiation sensor, execution errors are calculated, control action quantity is generated in real time through a PID control law, and finally execution quality is evaluated through a control action quantity sequence.