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Methods of increasing the energy efficiency of micro-hydroelectric power plants are considered in the work. A new hybrid concept of building a control system is proposed, which combines classical control laws and fuzzy logic. This makes it possible to improve the quality of the regulation of the parameters of the generated electricity regardless of changes in network operation modes and external conditions. It is shown that the use of hybrid filters will allow to increase the electromagnetic compatibility and, as a result, the energy efficiency of the system as a whole. References 12, figures 3. [ABSTRACT FROM AUTHOR]

Based on the refined mathematical model of the linear induction motor, which considers the end effects, the saturation of the magnetic field and the incomplete overlap of the inductor by the secondary element, a simulation model of the electric drive was created in the Matlab package. A simulation of the linear electric drive operation was carried out, which takes into account the effect of the input-output of the secondary element from the magnetic field of the inductor. The obtained results of the studies confirm the efficiency of the developed model and its suitability for carrying out refined modeling and synthesis of the control laws of the linear electric drive. References 12, figures 13, table 1. [ABSTRACT FROM AUTHOR]

The synthesis of a fuzzy proportional-integral-differential speed regulator of the arc stator electric drive of the rotation of the radar station antenna with combined control was carried out. The structural diagram of the fuzzy regulator was developed, the input and output linguistic variables are defined, the rule base was compiled, the dependence surfaces of the output control variable on the input coordinates are obtained. A simulation model of an electric drive in the Matlab system with a synthesized fuzzy logic regulator based on a two-phase model of an asynchronous arc-stator motor was built. Modeling of the nominal and the most difficult mode of operation of the electric drive was carried out, graphs of transient processes were obtained, which confirm its operability even under conditions of extreme loads. Refreces 9, figures 7, table 1. [ABSTRACT FROM AUTHOR]

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Copyright of Technical Electrodynamics / Tekhnichna Elektrodynamika is the property of National Academy of Sciences of Ukraine, Institute of Electrodynamics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)