Control of Electrical Energy Distribution in a Cable Channel

Аннотация

The load distribution between 18 cable lines located in an underground cable channel is considered. It is found that a current distribution control system in the cable channel needs to be developed to optimize the load conditions, as well as prevent possible overheating. The possibility of using a mathematical model of heat and mass transfer processes in the channel to determining the optimal current loads of cable lines is considered. A mathematical model of heat and mass transfer processes in the cable channel is constructed that makes it possible to study the temperature conditions of the channel under different configurations and line loads. Search algorithms of optimal operating currents under varying loads are developed that take into account the requirements for permissible temperatures and categories of consumers. The unsteady condition of overload of one of the lines due to an emergency is investigated. The heating curves of current-carrying conductors of the emergency cable line and those adjacent to it are plotted. The value of the current is determined to which it is necessary to reduce the load in one of the lines to maintain the system operability.