Modified Permanent Magnet Synchronous Generators for Using in Energy Supply System for Autonomous Consumer

Denis Kotin, Ilya Ivanov and Sofya Shtukkert
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Denis Kotin: Department of Electric Drive and Industry Automation, Novosibirsk State Technical University, 630073 Novosibirsk, Russia
Ilya Ivanov: Department of Electric Drive and Industry Automation, Novosibirsk State Technical University, 630073 Novosibirsk, Russia
Sofya Shtukkert: Department of Electric Drive and Industry Automation, Novosibirsk State Technical University, 630073 Novosibirsk, Russia

Energies, 2021, vol. 14, issue 21, 1-21

Abstract: In this paper, the possibility of using synchronous generators with magnetoelectric excitation for the autonomous consumers’ supply with the use of renewable energy sources is considered. To eliminate a number of the disadvantages associated with the difficulty of energy-efficient regulation of the generated parameters, such as the generated current and voltage, the use of modified multi-winding synchronous generators with permanent magnets is proposed. It allows solving the problem of controlling this type of generator. In addition, the use of this type of generator helps to increase the amount of energy generated. The authors have proposed several synchronous generators with permanent magnets of various supply network architectures: single-phase, two-phase and traditional three-phase types. This will simplify the design of architecture for several cases of consumer power supply systems. It will also help to eliminate the need to organize a balanced distribution of loads in phases to prevent accidents, damage and/or disabling of consumers themselves. Here, we considered mathematical descriptions of several types of generators that differ in their assembling, in particular, the number of phases (one-, two- and three-phase generators), the number of pairs of permanent magnet poles on the rotor, and the method of switching the generator windings among themselves. Using the developed mathematical descriptions that describe the operation of every single winding of the generator, their mathematical models were developed in the SimInTech mathematical modeling environment. The results of the mathematical modeling of these generators were presented; their interpretation for use with renewable energy sources was made; and the methods of using these generators were described. The developed mathematical descriptions of synchronous generators with permanent magnets can be used for further study of their operation. It can also help for the development of control systems and power systems for micro-grid energy complexes that use renewable energy sources to increase the energy efficiency of micro-grid systems.

Keywords: PMSM; micro-grid; SimInTech; electric machine; permanent magnet; multi-windings (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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