In this chapter the retrospective analysis of the theory condition and practice of the interconnected multi-motor controlled electric drives is performed. Research and development in this field developed in the last third of the 20th century. In these years, virtually was created the interconnected multi-motor drives theory but the research majority in the field of interconnected electric drives with elastic-plastic and distributed connections is not realized. Now the construction principles of means and control systems for the interconnected electric drive with the help programmaticallyhardware functional modules are realized. These modules were created on the basis of new semiconductor converters and the logical controllers. In the future will develop the theoretical research and the practical applications on the basis of the fuzzy neural networks, including the control in the online modes, the sliding modes with use high-speed controllers. Development of new exact synchronization methods of the electric multi-motor drives will ensure the creation of a multi -motor direct-drive. New group of mechatronic objects will be created by the interconnected multi-motor electric drives which not only have the traditional feedbacks on speed, currents, tension etc., and also the feedbacks based on the technological variables of machines and mechanisms: torques, efforts, pressure, vibrations, expenses etc. Development and creation of adaptive systems which interconnected through a processed material or working body of electric drives with is elastoplastic links (which properties change in the course of work) is an actual problem. Considerable interest represents application of the fuzzy-regulation methods for the creation of the control systems by the nonlinear nonstationary interconnected electromechanical systems. Practical realization of the robust control methods for the multi-motor electric drives in the emergency situation or emergency modes is also the perspective direction

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In the work the developed constructive and technological diagram of the bench based on the frequency controlled electric drive of the pump set and SCADA system for experimental defining power characteristics of the hydrodynamic heaters (HDH) of liquid environments is described. Based on methods of planning a multiple-factor experiment studies have been carried pit in various HDH operating modes. Preliminary theoretical calculations of the parameters of the HDH hydraulic operating mode have been carried out in the environment of the information-graphic system, at the set of factors similar to that of the pilot studies. The mathematical dependences establishing interrelations of heating capacity and coefficient of energy transformation with the HDH constructive and operational parameters based on the pipe type reactor have been found. The results of the studies and tests have been used when developing specifications for designing and producing the HDH prototypes.

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The article discusses the specifics of developing a virtual computer simulator of energy worker and a technology for training personnel of electrical services of coal mines. The paper describes the scope and main principles of simulator systems. The proposed energy worker's simulator model is described as a dual system: "Knowledge Base subsystem + Knowledge Control subsystem". In the work, we propose to build a training center for energy workers on the basis of the simulator, automated calculation of diagrams for calculating production units' power supply, as well as instruction and knowledge assessment system. The article presents a functional diagram of a training center equipped with a virtual simulator and considers two approaches in distributing software between the server and training center clients analyzing the advantages of each approach. Moreover, the work describes the technology for training coal mine electrical services employees and proposes an algorithm for using the simulator in training and controlling knowledge of this staff focusing on the advantages of using the simulator.