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Online Calculation Method and Device for Increased Power Generation of Wind Farms Under Frequency Disturbance Conditions

A technology for wind farms and power, applied in the field of online computing, can solve the problem of inaccurate calculation of the power that can be generated by wind farms, and achieve the effect of reducing calculation errors

Active Publication Date: 2021-07-23
CHINA ELECTRIC POWER RES INST
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  • Description
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  • Application Information

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Problems solved by technology

[0007] In order to overcome the above-mentioned defects, the present invention is proposed to provide an online calculation method and device for increasing the power of the wind farm under frequency disturbance conditions, which solves or at least partially solves the technical problem of inaccurate calculation of the increasing power of the wind farm

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  • Online Calculation Method and Device for Increased Power Generation of Wind Farms Under Frequency Disturbance Conditions
  • Online Calculation Method and Device for Increased Power Generation of Wind Farms Under Frequency Disturbance Conditions
  • Online Calculation Method and Device for Increased Power Generation of Wind Farms Under Frequency Disturbance Conditions

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Embodiment Construction

[0068] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0069] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0070] The frequency modulation capability of the wind farm is mainly realized by the wind turbines. When the frequency change rate is large, in order to quickly meet the frequency chan...

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Abstract

The invention relates to the technical field of new energy access and control, and specifically provides an online calculation method and device for increasing the power of a wind farm under frequency disturbance conditions, aiming to solve the technical problem of inaccurate calculation of the increasing power of a wind farm. In the process of calculating the additional generating power of the wind farm, it is determined according to the frequency support control mode adopted when the wind turbines participate in system frequency adjustment, the support time corresponding to the frequency support control mode, and the active power of each wind turbine unit after the frequency support control mode ends. The output active power during the control period of the above-mentioned frequency support control mode, and then calculate the additional power of the wind farm; this scheme considers the active power of each wind turbine after the frequency support control mode ends, from the two perspectives of inertia response and primary frequency modulation Calculate the increaseable power of the wind farm frequency support process to reduce the calculation error of the wind farm's increaseable power.

Description

technical field [0001] The invention relates to the technical field of new energy access and control, in particular to an online calculation method and device for increasing power of a wind farm under frequency disturbance conditions. Background technique [0002] As the proportion of wind power in the power system is getting higher and higher, the impact of wind power on the safe and stable operation of the power grid is increasing, and the grid source coordination ability of wind power has also received more and more attention. The grid-connected performance has been regulated. In terms of frequency support, the power system requires wind power to have inertia response and primary frequency modulation control capabilities. The inertia response control technology mainly releases the rotor kinetic energy of the wind turbine to achieve a rapid response to the grid frequency drop. At the same time, this technology can also increase the contribution of wind power active power ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/48H02J3/38
CPCH02J3/381H02J3/48H02J2300/28Y02E10/76
Inventor 苗风麟秦世耀李少林李春彦贺敬陈子瑜张梅朱琼锋张松涛唐建芳张金平
Owner CHINA ELECTRIC POWER RES INST
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