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Compressor control

A compressor and controller technology, applied in engine control, gas turbine installations, mechanical equipment, etc., to solve problems such as efficiency or power output impact

Active Publication Date: 2020-08-11
SIEMWNS ENERGY GLOBAL GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Unfortunately, limiting the operating state may have further consequences, such as an impact on efficiency or power output

Method used

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Embodiment Construction

[0034] The present disclosure relates to a controller (300) for a gas turbine engine (10) including a compressor. The present disclosure also relates to a gas turbine engine, a method of controlling the gas turbine engine, and tangible non-transitory computer readable storage medium.

[0035] by context, Figure 1 to Figure 4 An engine and compressor arrangement is shown to which the features of the present disclosure may be applied. However, features of the present disclosure may also be applied in other arrangements, for example comprising different or alternative combinations of the features.

[0036] figure 1 An example of gas turbine engine 10 is shown in cross-section. Gas turbine engine 10 includes, in flow order, an inlet 12 , a compressor or compressor section 14 , a combustor section 16 , and a turbine section 18 generally arranged in flow order and generally about and in the direction of an axis of rotation 20 . . The axis of rotation may also be referred to as...

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Abstract

A controller (300) for a gas turbine engine (10) operates according to a control method. The gas turbine engine (10) comprises a compressor (14) having a casing (50) which extends along, and is centered on an operational axis (20). An array (48) of compressor blades is coupled to a rotatable engine shaft (22) which extends along the operational axis (20). A first variable guide vane (8a) is axially spaced apart from the compressor blade array (48) along the operational axis (20), wherein the first variable guide vane (8a) is rotatably mounted at a first location (202) on the casing (50), having a vane axis of rotation (121) at right angles to the operational axis (20). The first variable guide vane (8a) is coupled to an adjustment drive (154) operable to rotate the first variable guide vane (8a) about its axis of rotation (121) to a range (A-D) of angles relative to the operational axis (20). The controller (300) is operable to control the rotation of the first variable guide vane (8a)in dependence of engine shaft speed wherein over a first range (A-B) of engine shaft speed the angle of the first variable guide vane (8a) relative to the operational axis (20) decreases with increasing engine speed and over a second range (B-C) of engine shaft speeds the angle of the first variable guide vane (8a) relative to the operational axis (20) : increases with increasing engine speed.

Description

technical field [0001] The present disclosure relates to the control of a compressor. [0002] In particular, the present disclosure relates to control of compressors for gas turbine engines. Background technique [0003] A gas turbine consists of a turbine and a compressor driven by the turbine. A compressor may consist of multi-stage stator vanes that cannot rotate around an operational axis and rotor vanes that can rotate. Typically, gas turbines are subject to varying operating conditions resulting in different aerodynamic flow conditions within the compressor. [0004] In order to adapt the compressor performance to different flow regimes, it is known to provide the compressor with variable guide vanes (VGV). The variable flow vane is pivotable / rotatable about the longitudinal axis of the variable flow vane in order to adjust the orientation of the variable flow vane relative to the engine's operating axis (i.e., the direction of axial flow through the compressor). ...

Claims

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Application Information

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IPC IPC(8): F02C7/057F02C9/20
CPCF02C7/057F02C9/20F05D2270/304F01D17/162F05D2240/12F05D2240/35F05D2270/02F05D2270/101
Inventor S·克里施纳巴布
Owner SIEMWNS ENERGY GLOBAL GMBH & CO KG