The paper presents the results of testing and research of the characteristics of a controlled autonomous magnetoelectric synchronous generator with a magnetic shunt. Structurally, the studied generator is a modified asynchronous machine in which the rotor is made with permanent magnets and an additional system in the form of a magnetic shunt. By adjusting the winding current of the magnetic shunt, the output voltage of the generator is regulated. The following characteristics were investigated: the no-load characteristic during operation with permanent magnets and when the winding current of the magnetic shunt changes with forward and reverse polarity. Also, the external characteristic for active and active-inductive loads; the control characteristic when the load current changes at a constant generator voltage. Analysis of the obtained characteristics makes it possible to determine the limits of regulation of the external characteristic, which is ≈40 % relative to the main magnetic flux. The obtained regulation depth allows maintaining the stability of the external characteristic for power factors not exceeding 0.9, which is the usual passport value for autonomous power plants based on synchronous generators. Comparison of the data of research conducted on the experimental setup shows sufficient convergence for engineering and practical tasks. The maximum quantitative difference is 9.3 %, which suggests the adequacy of the previously developed mathematical model. The control characteristic, constructed experimentally at constant generator voltage, is the control law of the magnetic shunt winding for the studied generator. The investigated version of a synchronous generator with a magnetic shunt should be used for autonomous power plants, renewable energy systems, and autonomous power supply systems.

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mous power systems. Wind power engineering is developing particularly rapidly. Hundreds of thousands of small wind plants and thousands of large wind turbines are currently in operation worldwide. The electric generator with permanent magnets has a series of significant drawbacks. Existing generators need to be improved to overcome these deficiencies, resulting in additional investment. That could improve efficiency of such generators, but would also increase their cost and compromise their reliability. New high-performance magnetoelectric generators on permanent magnets could contribute to solve a given task.A relevant scientific and practical field is the development of new types of generators with permanent magnets. Underlying such designs is a conventional cylindrical electric

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Проведено схемотехнічне моделювання іонізаційного пробою твердого діелектрика з частковим розрядом у газовому включенні. Запропоновано декілька способів схемотехнічного моделювання пробою газового включення при частковому розряді. Встановлено, що при впливі повного грозового імпульсу напруги на діелектрик в газовому включенні виникають інтенсивні часткові розряди, як на фронті імпульсу, так і на його спаді.