The application provides a
power transmission line
dynamic capacity-increasing
temperature monitoring method and a
monitoring system, wherein the method comprises the following steps: 1) obtaining the
power transmission line surface temperature field distribution in the circumferential direction of the
power transmission line under the current transmission capacity based on a
temperature monitoring device installed on the power
transmission line; 2) inputting the capacity-increasing amount into the
control system through the input end, inputting the capacity-increasing amount into a capacity-increasing monitoring model by the
control system, judging whether the temperature field distribution in the circumferential direction of the power
transmission line caused by the capacity-increasing amount exceeds a set threshold value based on the capacity-increasing monitoring model, if the temperature field distribution exceeds the set threshold value, the capacity-increasing monitoring model sends a warning to the
control system, and the capacity-increasing action is not performed, if the temperature field distribution does not exceed the set threshold value, a safe capacity-increasing instruction is sent to the control
system, and the control
system performs interval type step-by-step capacity-increasing in the set capacity-increasing unit amount according to the safe capacity-increasing instruction, and reaches the set capacity-increasing amount.