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Wind power limit penetration power optimization method and device

A technology of penetrating power and optimization method, which is applied in the direction of circuit devices, wind power generation, electrical components, etc., and can solve problems such as quantitative evaluation of system transient stability

Active Publication Date: 2017-02-08
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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Problems solved by technology

Usually based on Matlab, PS, CAD and other software to observe the swing curve of the generator rotation angle to judge whether the system can maintain synchronous operation under large disturbances, and cannot quantitatively evaluate the transient stability of the system

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  • Wind power limit penetration power optimization method and device
  • Wind power limit penetration power optimization method and device
  • Wind power limit penetration power optimization method and device

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Embodiment Construction

[0082] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0083] Before describing the embodiments according to the present invention in detail, it should be noted that the described embodiments mainly lie in the combination with the wind power limit penetration power optimization method and device components. Accordingly, pertinent system components and method steps have been indicated at appropriate places in the drawings by conventional symbols, and only details relevant to the understanding of the embodiments of the present invention have been shown so as not to cause confusion to those who would benefit from the present invention. Details that would ...

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Abstract

The invention relates to a wind power limit penetration power optimization method and device. The method includes the steps of obtaining the transient energy and critical energy at the time of grid fault removal, obtaining the transient stability index according to transient energy and critical energy, optimizing a wind power admission capacity optimization model according to the transient stability index, obtaining the wind power limit penetrating power according to the optimized wind power admission capacity optimization model, and configuring the power grid according to the obtained wind power limit penetrating power. According to the wind power limit penetration power optimization method and device, the transient energy and critical energy at the time of grid fault removal are obtained, the transient stability level and elasticity value of a power grid with blower fans can be directly quantified through transient stability index to form transient safety constraints, and the safety influence of blower fan capacity on the power grid can be directly shown. Transient safety and other constraint conditions can be comprehensively taken into consideration. Blower fan installed capacity can be maximized under the prerequisite of safe operation of a power grid, thereby reducing operation risks of the power grid.

Description

technical field [0001] The invention relates to the field of power grid security, in particular to a method and device for optimizing wind power limit penetration power. Background technique [0002] Environmental pollution and energy shortage have promoted the rapid development and wide application of wind power generation. The frequency regulation and voltage regulation characteristics of wind turbines are very different from those of traditional synchronous generators. When the system fails, the wind turbine will accelerate and oscillate in speed and active power, and at the same time, the outlet voltage of the wind farm will drop rapidly. , affecting the transient security of the power grid. The higher the penetration rate of wind power, the greater the impact on the transient security of the power grid, so it is necessary to determine the admittance capacity of wind power. The admission capacity of wind turbines refers to the maximum capacity of wind turbines that the...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/386H02J3/46H02J2203/20Y02E10/76
Inventor 白浩雷金勇唐渊史训涛谭勤学魏文潇占恺峤喻磊
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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