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Power system frequency inertia for wind turbines

A technology of wind turbines and wind power systems, applied in the direction of wind motor combination, wind engine control, wind power generation, etc., can solve the problem that the wind turbine does not contribute to the frequency stability of the public system, and achieve the effect of improving the possibility

Inactive Publication Date: 2011-12-28
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in the normal configuration, wind turbines do not contribute to the frequency stability of the utility system

Method used

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  • Power system frequency inertia for wind turbines
  • Power system frequency inertia for wind turbines
  • Power system frequency inertia for wind turbines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Usually refer to figure 1 , a wind turbine system 1 operable to generate electrical power is provided. The wind turbine system 1 comprises a hub 4 with a plurality of blades 6 . The blades 6 convert the mechanical energy of the wind into a rotational torque, which is further converted by the wind turbine system 1 into electrical power. The wind turbine system 1 also includes a turbine section 2 operable to convert mechanical energy of the wind into rotational torque and a generator 18 operable to convert the rotational torque produced by the turbine section 2 into electrical power. A driveline 9 is provided to couple the turbine section 2 to a generator 18 . Wind turbine generator 18 typically includes a generator used with a full converter. In a full conversion embodiment, the wind turbine generator stator windings feed directly to the converter.

[0043] Turbine section 2 includes a turbine rotor low speed shaft 8 coupled to hub 4 . Rotational torque is transmitt...

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PUM

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Abstract

The invention relates to a wind turbine system comprising: a wind turbine operable to supply wind power to an utility system; a synchronous generator coupled to the utility system; a grid measurement device arranged for measuring the current and power that is exchanged between the synchronous generator and the utility system; a controller for adjusting the output power of the wind turbine as a function of the power and current that is measured by the grid measurement device; and a means of communication between the grid measurement device, controller and / or the wind turbine, wherein the wind turbine is configured to provide current and power to the utility system as a function of the measured power and current of the grid measurement device.

Description

technical field [0001] The present invention relates generally to the field of wind turbine generators used to generate electricity for a utility grid, and more particularly to techniques for ensuring grid compatibility of wind turbine generators, including techniques for stabilizing power during transient conditions. Background technique [0002] A wind turbine generator typically includes a wind rotor that converts wind energy into rotational motion of a turbine shaft, which in turn drives a rotor of a generator to generate electricity. [0003] Modern wind turbine generator installations typically take the form of wind farms having a plurality of wind turbine generators connected to a common wind farm electrical grid. The wind park grid is connected to the utility grid either directly or through a substation which may include a step-up transformer. [0004] Standalone wind turbines and wind farms are required to meet utility system operators' power quality requirements. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/10H02P9/42F03D7/02F03D7/04F03D9/00G05F1/67H02J3/38
CPCH02P9/42Y02E40/30F03D7/0284H02J3/386F05B2270/1033F05B2270/337F03D7/0224Y02E10/723Y02E10/725F05B2220/70642F05B2270/1032Y02E10/763H02P9/105F03D7/0272H02J3/18H02P2009/004H02P2101/15Y02E60/16Y02E70/30H02J3/30H02J2300/28H02J3/381Y02E10/72Y02E10/76H02J3/46
Inventor J.蒂斯泰德
Owner SIEMENS AG