Problems connected with improvement of control systems for power systems of industrial enterprises, which are most important elements of energy and fuel consumption in industry, are considered. The growth of energy and fuel cost, the increasing requirements to their saving determine the topical character of this study. The developed technical and software tools of information processing and decision making provide new capabilities for improving control. Multilevel structures of problems and control circuits, models and algorithms for their realization are proposed. The formulations of control problems, applied information and mathematical tools can be used at mechanical engineering enterprises and in other fields of industry.