For the disaster brought by the transmission line regelation, a new de-icing method is presented in this paper. It is supposed that the ice and transmission line are combined closely when there is no external loads, the composite structure of icetransmission line is set up with the finite element analysis software SAP2000, the 500KV cat-head tower used in the practical projects is applied, then the coupled model of the composite structure-tower is set up. The composite structure can be applied to exciting loads, the frequency of which is close to the natural frequency of ice, the model of which is simulated by the finite element analysis software SAP2000. The natural frequency of ice is far from that of the transmission line. Based on the resonance theory, the ice occurs to deform and crush, finally the ice divorces from the conductors under the function of the exciting load, but those transmission lines are still very safe, the analytical solution can be obtained and the new de-icing method for transmission line based on the theory of resonance is got. It is suitable for the transmission line to de-ice through the computation of the concrete example. It can be concluded that the de-icing method based upon resonance theory is feasible. Keywords-numerical simulation; the composite structure of icetransmission line; resonance; de-icingI.
With the economic development,the transport capacity of the existing transmission lines can not satisfy the demand for electricity. When the line needs expansion we propose to replace the new optional wire to reach the goal line expansion without changing the existing transmission line structures premise of the original line. We should consider energy conservation, temperature, security when running on N-1 and sag expansion to the main line. To satisfy these requirements, we set up the principle of development for the proper ties of the conductors to be developed and made assessment on the newly –developed conductors in China and foreign countries in recent years.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.