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More accurate torque sleep formulas have been developed based on the equivalent circuit of a multicontour induction motor (IM). Methods of taking into account the saturation and skin effects on machine parameters are discussed. High order and space harmonics and their dependences on the rotor speed are also included in the analysis.

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Currently, the bulk of the information necessary for the implementation of supervisory control and the controllability of electrical equipment comes from telemechanics systems. A prerequisite for the construction of new electric power facilities or for the reconstruction of old ones is the introduction of telemechanics systems. Telemechanics systems are actively developing and improving. Initially, all of them consisted of a controlled telemechanics center that monitors and controls the system, receiving and processing analog signals from analog measuring transducers via numerous direct cable communication lines. The main disadvantages of such an organization of telemechanical systems include a large amount of connecting cables, scaling difficulties and low metrological characteristics. With the advent of digital transmitters, it became possible to transmit signals from them in digital form, which reduced the number of connecting lines and simplified the scaling and fault tolerance of systems. Now with the help of one measuring transducer it is possible to measure several parameters at once. The main measured parameters of power plants include: current strength, phase voltages, AC frequency, active, reactive and apparent power. This article describes the organization of the telemechanics and communication systems of the Astrakhan TPP-2. The analysis of the existing station power control algorithm is given. A variant of its modification is proposed. An example of the implementation of the proposed modification of the algorithm is described.