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Heavy-duty gas turbine generator rotor coil structure suitable for variable-frequency starting

A gas turbine generator and rotor coil technology, which is applied to the shape/style/structure of winding insulation, the shape/style/structure of winding conductors, electric components, etc. Problems with unbalanced loads, etc.

Pending Publication Date: 2020-10-27
SHANDONG QILU ELECTRIC MOTOR MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a frequency-converting Rotor Coil Structure of Heavy Gas Turbine Generator Started

Method used

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  • Heavy-duty gas turbine generator rotor coil structure suitable for variable-frequency starting
  • Heavy-duty gas turbine generator rotor coil structure suitable for variable-frequency starting
  • Heavy-duty gas turbine generator rotor coil structure suitable for variable-frequency starting

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with specific examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] refer to Figure 1-3 As shown, a heavy-duty gas turbine generator rotor coil structure suitable for variable-frequency start-up includes hollow-type excitation winding 1, squirrel-cage damping winding, slot insulation 4, turn-to-turn insulation 5 and slip layer 6; the hollow-type The field winding 1 is provided with several layers of inter-turns, and inter-turn insulation 5 is provided between two adjacent layers of turns; the squirrel-cage damping winding is arranged outside the hollow field field winding 1; the hollow field field The winding 1 and the rotor embedding slot are sealed by the slot insulation 4; a slip layer 6 is provided between the lowermost coil of the hollow excitation winding 1 and the slo...

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Abstract

The invention discloses a heavy-duty gas turbine generator rotor coil structure suitable for variable-frequency starting. The heavy-duty gas turbine generator rotor coil structure comprises a hollow excitation winding, a squirrel-cage damping winding, a slot insulator, a turn-to-turn insulator and a sliding layer, wherein the squirrel-cage damping winding is arranged outside the hollow excitationwinding; the hollow excitation winding and a rotor wire embedding groove are sealed through the slot insulator; and the sliding layer is arranged between the lowermost coil of the hollow excitation winding and the slot insulator. The heavy-duty gas turbine generator rotor coil structure is mainly suitable for a heavy-duty gas turbine generator adopting static variable-frequency starting, the starting requirement of a synchronous motor under the working condition is met, the unbalanced load bearing capacity of a unit under the generator working condition can be effectively improved, and the heavy-duty gas turbine generator rotor coil structure has good cooling performance and conductive performance, high strength and safe and reliable high-speed operation.

Description

technical field [0001] The invention relates to the technical field of large generators, in particular to a heavy-duty gas turbine generator rotor coil structure suitable for frequency conversion start. Background technique [0002] At present, heavy-duty gas turbine generator sets are mainly started by static variable frequency starter (SFC). When starting, the generator is controlled by SFC, and the generator is used as a synchronous motor. [0003] For the heavy-duty gas turbine generators started by SFC, the rotor coil structure must meet the requirements of generator excitation, provide a stable and uniform excitation magnetic field to the unit during operation, and meet the requirements for starting under the condition of synchronous motors. It is necessary and can improve the anti-negative sequence ability of the unit under the generator working condition, and at the same time, it should have good cooling air path and mechanical performance. [0004] For example, Chi...

Claims

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Application Information

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IPC IPC(8): H02K3/04H02K3/22H02K3/24H02K3/34
CPCH02K3/04H02K3/22H02K3/24H02K3/345
Inventor 于鲁闽宋术青张衍康张晓彤
Owner SHANDONG QILU ELECTRIC MOTOR MFG
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