Method for calculating electric energy production loss caused by limited power and machine halt of wind power plant cluster

A technology for power generation and wind farms, applied in wind power generation, electrical components, circuit devices, etc., can solve problems such as difficult calculations, lack of universal applicability, large calculation errors, etc., and achieve convenient data collection, flexible methods, and accuracy high effect

Inactive Publication Date: 2017-02-01
青岛华创风能有限公司 +3
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Problems solved by technology

[0005] The invention provides a method for calculating the power generation loss of wind farm fleets due to power cuts and shutdowns, which overcomes the problems of large calculation errors, difficult calculations, and lack of universal applicability in the existing methods.

Method used

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  • Method for calculating electric energy production loss caused by limited power and machine halt of wind power plant cluster

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Embodiment

[0023] refer to figure 1 , described a kind of method for calculating wind farm fleet curtailment, shutting down loss power generation, comprises the following steps:

[0024] S1. Obtain the wind speed-power specific curve P of the wind turbine given by the wind turbine manufacturer Curve ;

[0025] S2. Determine the data collection cycle ΔM;

[0026] S3. Collect the current operating data of the wind turbine in real time, including the status, wind speed, and power of the wind turbine. When the operation status of the wind turbine is limited, it is recorded as S 限 , when the operating state of the wind turbine is shutdown, it is denoted as S 停 , to obtain the current power P of the wind turbine 当前功率 ;

[0027] If the current state of the wind turbine is S 限 , execute step S3.1,

[0028] S3.1. In each ΔM cycle, the power generation loss of a single wind turbine is ΔG=(P Curve -P 当前功率 )×ΔM÷60÷60, where the unit of ΔG is kwh, P Curve ,P 当前功率 The unit of ΔM is kw, the ...

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Abstract

The invention provides a method for calculating electric energy productionloss caused by limited power and machine halt of a wind power plant cluster. The output loss of any one wind turbine generator generated in a power-limited or machine-halt state is calculated according to an air speed-power specific curve P<Curve> of each wind turbine generator by collecting operating data of each wind turbine generator in real time, and then the electric energy production loss of the overall wind power plant is calculated. The method provided by the invention has the advantages of simple algorithm, high calculation precision, high universal applicability and the like.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a method for calculating power generation loss due to power shortage and shutdown of wind farm fleets. Background technique [0002] Due to the instability of wind power generation, limited power often occurs in the process of wind farm power generation. In the process of wind farm production, it is impossible to accurately calculate the amount of power to be generated and the actual production capacity of the wind farm. The ability to generate electricity and judge the efficiency of employees will all have a certain impact. In addition, when the fan fails, the electric field will also lose a part of the power generation, and the loss of this part of electricity will also have a certain impact on the production capacity of the electric field. [0003] At present, the output loss calculation method adopted by wind farms is mainly the calculation method o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J3/386H02J2203/20Y02E10/76
Inventor 赵明武贾春雁王松刘欣
Owner 青岛华创风能有限公司
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