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Charging resistor for aluminum-alloy wind power plant

A technology for charging resistors and wind farms, which is applied to resistors, resistor components, resistor installation/support, etc., and can solve problems such as large inductance, high temperature, and low resistance accuracy

Inactive Publication Date: 2013-09-18
扬州豪威机电制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional low-voltage ride-through resistors have defects such as low resistance precision, large inductance, and high temperature

Method used

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  • Charging resistor for aluminum-alloy wind power plant
  • Charging resistor for aluminum-alloy wind power plant
  • Charging resistor for aluminum-alloy wind power plant

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Embodiment Construction

[0012] like figure 1 As shown in -3, the present invention includes a support insulator base 1, a frame 2 is arranged on the support insulator base 1, and the frame 2 includes a square aluminum alloy frame body 3 arranged symmetrically on both sides and arranged between the aluminum alloy frame bodies 3 on both sides. Insulating crossbeams 4 between them, a number of resistance units 5 are fixed inside the frame 2.

[0013] The resistance unit 5 includes a square frame body 6, and several vertically arranged non-alkali untwisted glass filaments 7 are evenly arranged in the square frame body 6, and a resistance wire 8 is wound on the non-alkali non-twisted glass filament 7, and the resistance unit 5 is fixed by a fixed bolt. 9 is fixed on the insulating beam 4 of the frame, and the resistance units 5 are connected in sequence through wires 10 .

[0014] There are gaps between the resistance units 5 , and the resistance units 5 are installed on the frame 2 in an M shape.

[00...

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Abstract

The invention relates to a charging resistor for an aluminum-alloy wind power plant, which relates to the field of a power system. The charging resistor comprises a supporting insulator base, wherein a framework is arranged on the supporting insulator base and comprises two side symmetric square aluminum alloy frames and insulation crossbeams between the two side aluminum alloy frames, and a plurality of resistor units are fixed in the framework; each resistor unit comprises a square frame, a plurality of vertical alkali-free zero-twist glass fibers are uniformly distributed in each square frame, resistor wires wind the alkali-free zero-twist glass fibers, and the resistor units are fixed on the insulation crossbeams of the framework through fixed bolts and are sequentially connected with one another through conducting wires. The framework adopts a high-strength aluminum alloy material, so that the charging resistor has the advantages of good magnetic insulation performance and rapidness in heat radiation; the insulation crossbeams are arranged between the aluminum alloy frames, so that the resistor is entirely free from a closed loop, and the loop current heating can be avoided even in a wide frequency range (from 0 to 5000HZ).

Description

technical field [0001] The invention relates to the field of power systems, in particular to a charging resistor for an aluminum alloy wind farm. Background technique [0002] At present, with the increasingly widespread application of wind power projects, after the single-unit capacity and wind farm scale have increased significantly, there are relatively difficult technical bottlenecks in grid connection and grid management. Under the current situation of rapid development (installed capacity) Under the circumstances, the low voltage ride through brake resistor should be born in time, it can improve the low voltage ride through capability of the generator set, limit the large current impact caused by the grid voltage drop, protect the excitation converter, and limit the overvoltage of the rotor winding. [0003] Traditional LVRT resistors have defects such as low resistance precision, large inductance, and high temperature. Contents of the invention [0004] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C13/02H01C1/01H01C1/084
Inventor 崔博
Owner 扬州豪威机电制造有限公司
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