New Frontiers in Synchronous Machines
A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A: Sustainable Energy".
Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 422
Special Issue Editor
Interests: integration of renewable energy in power systems; energy efficiency, protections, condition monitoring and diagnosis of electrical machines, especially large synchronous generators
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Synchronous machines, especially medium and large generators, play a very important role in power systems. For many years, the main concern of the manufacturers of synchronous machines was the development of larger generators with complex H2 and water-cooling systems. Today, one of the main concerns in this type of large machine is the construction of larger air-cooled machines.
Currently, distributed generation represents a vast part of the power generation, and the new developments in synchronous generators have changed. The size of the generators is not the most important issue, as before. The current research lines are related with efficiency or new generator designs for renewable applications. Examples of these research lines are superconducting machines, new wind power synchronous generators with direct drive or new excitation systems, among others. The integration of a large quantity of renewable energy in power systems demands the increase of the storage pumping hydro stations and in some cases the use of synchronous condensers to improve the system stability and guarantee the short-circuit current in case of short-circuit. Therefore, the synchronous machines still have a long life ahead in power generation.
On the other hand, we have the synchronous machine used as a motor. Traditionally they have been used only for large power application (several MW) due to their better efficiency than induction machines and the control they provide of the power factor. However, it is not as easy to start synchronous motors as is the case with induction motors. The drop in prices of variable-frequency converters provoked their widespread use worldwide. This enabled the use of synchronous motors in the low-power range—mainly permanent magnets and synchronous reluctance type. The main advantage is the better efficiency in comparison to an equivalent induction motor.
Another very active research topic is condition monitoring. New techniques for signal processing, artificial intelligence, big data analysis, new sensors, wireless and real time monitoring devices, among others will be used for the control and supervision of synchronous machines.
This Special Issue will focus on all new advances related to synchronous machines, such as novel designs, new applications, condition monitoring, etc. I am writing to invite you to submit your original work to this Special Issue. I look forward to receiving your outstanding research.
Prof. Carlos Platero
Guest Editor
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Keywords
- Synchronous machines
- Synchronous generators
- Excitation control
- Monitoring and diagnosis of synchronous machines
- Synchronous motors
- Permanent magnet synchronous machines and drives Reluctance synchronous machines and drives
- Multimachine power system
- Wind-turbine-driven synchronous generators
