| abstract |
The invention discloses a method and system for intelligent dynamic capacity expansion of power transmission and transformation lines, comprising the following steps: S1. Obtaining the functional relationship between the cable surface temperature and the conductor temperature through a pre-test system Tc=H(Tf, Te, Da), S2 . The control center obtains the environmental value collected by the environmental monitor and the temperature value of the temperature monitor; S3. The control center periodically reads the real-time load L of the underground cable, and associates the cable load L with the sample data obtained by the monitoring system; S4, The construction function Tc=G(L, Te, Da), S5, the control center periodically feeds back the dynamic maximum load Ld to the dispatch center as the upper limit of the capacity increase. The scheme provides a test environment for the cable through the pre-test system to obtain the real measurement data to establish the functional relationship between the conductor, the cable skin temperature value and the cable load, and then monitor the cable skin temperature value in real time to obtain the conductor temperature value, and then the capacity expansion of the power cable can be obtained. The range can be increased to ensure the safe and reliable performance of power capacity expansion. |