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Wind-power-plant reliability modeling method

A modeling method and technology of wind farms, applied to electrical components, circuit devices, AC network circuits, etc., can solve the problems of complex failure rates of wind turbines, only considering the correlation of wind speed between wind farms, complex modeling methods of wind farms, etc. question

Inactive Publication Date: 2014-04-23
HOHAI UNIV
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Problems solved by technology

The wind farm reliability models reported in the existing literature either only consider the correlation of wind speed between wind farms or only consider the failure of wind turbines, but the wind farm modeling method that takes into account the failure rate of wind turbines is complicated and consists of different In the case of wind farms composed of different types of wind turbines, the calculation of the failure rate of wind turbines is particularly complicated

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Embodiment Construction

[0054] Below in conjunction with accompanying drawing, a kind of wind farm reliability modeling method that the present invention proposes is described in detail:

[0055] like figure 1As shown, it is a flow chart of the wind farm reliability modeling method, a wind farm reliability modeling method, including the following steps:

[0056] Step A, parameter initialization, the parameters include:

[0057] Wind speed simulation years N y ;Number of wind farms N WF ;

[0058] The number of models of different types of wind turbines contained in each wind farm, where the i-th wind farm consists of n i It is composed of different types of wind turbines, i=1,...,N WF ;

[0059] The number of wind turbines of various types in each wind farm, where the number of wind turbines of type j in the i-th wind farm is m ij ,j=1,...,n i ;

[0060] The technical parameters of the wind turbines in each wind farm, where the technical parameters of the j-th type of wind turbine in the i-t...

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Abstract

The invention proposes a wind-power-plant reliability modeling method. The method takes correlation of wind speeds between wind power plants and fault rates of wind turbine generators into consideration at the same time and through generation of related wind speeds in a simulating manner, effects of the correlation of the wind speeds between the wind power plants are taken into consideration and through binomial distribution and Monte Carlo simulation, effects of the fault rates of the wind turbine generators are taken into consideration. The reckoning-in method of the fault rates of the wind turbine generators is simple and easy to be realized through a program. A method based on linear division is used to calculate the lasting time of each equivalent state of the wind power plants so that precision of an output-power multi-state probability model of the wind power plants is improved. The wind-power-plant reliability modeling method is not only applicable to reliability modeling of wind power plants formed by combination of wind turbine generators of the same kind, but also applicable to reliability modeling of wind power plants which are formed through combination of wind turbine generators of different kinds so that reference is provided to reliability assessment of a wind power connected-grid power system through use of an analytical method and a non-sequential Monte Carlo method.

Description

technical field [0001] The invention belongs to the technical field of electric power system modeling, and in particular relates to a wind farm reliability modeling method. Background technique [0002] Under the background of the depletion of traditional primary energy, the increasingly prominent environmental problems and the policy support for the development of wind power by governments of various countries, wind power has developed rapidly in the world. Compared with the traditional power generation system, wind energy has the characteristics of intermittent and fluctuating. The increasing proportion of wind power connected to the system will bring great challenges to the safe operation of the power grid. Reliability assessment, in order to provide reference for the development planning and system operation scheduling of the power system after large-scale wind energy access. [0003] The methods of power system reliability assessment can be divided into two categories:...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06F17/50
CPCY02E60/76Y04S40/22Y02E60/00
Inventor 陈凡卫志农孙国强孙永辉杨雄袁阳陆子刚张伟刘玉娟潘春兰
Owner HOHAI UNIV
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