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Here, superconducting machines, which are identified with high efficiency and power intensity, seem to be the only candidate for solving the problem . Significant progress in high-temperature superconductor (HTS) wires enables MW-rated generator designs with lower volume and mass.
tem could be more ecient than DFIG system [38]. High torque density, reduced rotor thermal stress and high energy conversion eciency are the key benets of using PMSG due to the …
Excitation systems for generator fields have a certain amount of excess capacity. However, fields with ... The increase in hot spot temperature accelerates the breakdown of insulation systems …
Higher flux densities in the excitation winding window are admissible due to the better in-field performance of tape (ii) so that a higher saturation of the rotor parts (particularly the rotor yoke) are tolerable.
EXCITATION AC Excitation Systems Figure 13.38 illustrates a typical ac excitation scheme. It shows the shaft-mounted main and pilot exciters together with their brush …
Partially superconducting direct-drive wind turbine generators with high-temperature superconducting excitation winding enable an increase of the rated unit power, …
High-temperature superconducting (HTS) field windings in synchronous generators are a promising alternative to a rare-earth permanent magnet excitation. Medium-speed wind …
Axis-flux wind generators are widely used in vertical axis wind turbines given their high generator diameter-to-length and power-to-weight ratios, flexible field and winding …
Research in [16] assessed the losses, output powers, and efficiency of a WECS employing a SCAG, a double power supply, and a PMSG depending on wind velocity. The data show that the asynchronous cage …
We present key design parameters of an innovative 10 MW low-speed direct-drive superconducting generator by high-temperature superconductor coated conductors for …
Significant progress in high-temperature superconductor (HTS) wires enables MW-rated generator designs with lower volume and mass. There are many studies on superconducting high-power synchronous wind turbine generators.
The DC windings of the generator consist of 5 double pancakes, each of which has 1232 windings and a total of 12,320 windings. The geometric dimensions of the superconducting tapes constituting the windings are 12 mm × 100 μ and each tape is assumed to be covered with a 150 μm dielectric insulating material.
Medium-speed geared synchronous generators for wind turbine applications with either PM excitation or HTS excitation winding are compared for rated operation at P = 6MW, n = …
Research and development of second generation high temperature superconducting (HTS) wires and tapes in the last decade has made HTS based coils and wires a possibility which is …
Wind turbines require low-speed, high-torque generators. Such generators must be of low mass to reduce the tower mass. The tower cost is the most expensive component in …
This paper has proposed a high temperature superconducting (HTS) field-modulation double-stator (HTS-FMDS) machine with a stationary seal for low-speed and direct-drive applications. The originality of this paper lies in …
excitation system, SC support system, cryogenic cooling system ... is a new trend for above 10MW class wind generators. High temperature superconducting (HTS) machines are famous …
generator capacity and the ultra-low operation revolution for the direct-driven wind turbine generator. In our previous work, the electrical design of the basic parameters of the traditional …
There are many studies on superconducting high-power synchronous wind turbine generators. In, direct-driven wind turbine generators with HTS winding were studied in general, and their advantages were demonstrated in comparison with conventional generators. The feasibility of a 5 MW HTS wind turbine generator (WTG) was discussed in .
New developments of the wind power technologies open a wide future in the next decade. One of such developments is the novel high temperature superconducting (HTS) …
Direct drive wind turbine generators with superconducting excitation winding are studied with focus on the electromagnetic damper design. A semi‐analytical eddy current …
A conceptual structure for large-scale wind turbine generators (WTGs) with high-temperature superconductor (HTS) excitation has been proposed. A novel electrical design method for this …
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