Abstract: The article deals with complex issues of development and adaptation of industrial enterprise cost management to changing conditions unstable environment management. Features costs of the enterprise as an economic category. Detected shortcomings of existing systems management costs. A number of requirements to establish an effective system management costs. The conclusions that cost management system should be implemented in an integrated manner, providing interconnected solving problems.
Keywords: industrial enterprise, system costs, management.
Summary. In this article the effective algorithm of optimization of power networks regime on voltages of nodes with controllable reactive power is offered. The results of research of calculation quality of the offered algorithm are presented.
Key words: power network, power losses, optimization of regime, algorithm of optimization, criterion function, limitations, iterative process, acceleration coefficient.