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Wind farm large-scale energy storage power station power regulation method and system

An energy storage power station and power regulation technology, applied in reactive power adjustment/elimination/compensation, wind power generation, electrical components, etc., can solve problems such as unstable wind power output, wind farm voltage fluctuations, uncontrollable predictability, etc. , to achieve the effect of stable voltage, smooth power output and full utilization

Active Publication Date: 2011-12-14
大连融慧能源科技有限公司
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AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: The present invention provides a power regulation method and system for a large-scale energy storage power station in a wind farm, which mainly solves the direct contradiction between unstable, uncontrollable and poor predictability of wind power output and power grid dispatching, and improves the resulting wind farm voltage. volatility problem

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  • Wind farm large-scale energy storage power station power regulation method and system
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  • Wind farm large-scale energy storage power station power regulation method and system

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specific Embodiment approach

[0048] The specific embodiment: the present invention will be further described below in conjunction with accompanying drawing:

[0049] The present invention provides a method for adjusting the power of a large-scale energy storage power station in a wind farm. The method includes a power smoothing active power control method and a voltage stable reactive power control method for a large-scale energy storage power station; the specific steps of the method are as follows:

[0050] Power smoothing active power control method:

[0051]Wind energy is converted into electrical energy by wind turbines, and the continuous change of wind speed causes the output power of wind turbines to P w According to the change of the frequency range of the change, the output of the wind turbine can be P w Three parts: high frequency area (1Hz and above), low frequency area (0.01Hz and below) and intermediate frequency area between them. Part of the power fluctuation in the high-frequency regi...

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Abstract

The invention relates to a control system and a control method for a large-scale energy storage power station of a wind farm, which are particularly applicable to regions with smaller capacity of power grids or greater proportion of wind power installed capacity to gross installed capacity of the power grids. By adopting the control system and the control method, the large-scale energy storage power station of the wind farm can be controlled, the voltage of the wind farm can be stabilized, the power output of a wind turbine generator or the wind farm can be smoothened, the safety of the power grid and the reliability and the flexibility in power supply in the region in which the wind farm is located can be improved and renewable energy resources can be further fully utilized.

Description

technical field [0001] The invention relates to a control system and a control method for a large-scale energy storage power station of a wind farm, and is especially suitable for areas where the capacity of a power grid is small or where the installed capacity of wind power accounts for a large proportion of the total installed capacity of the power grid. Background technique [0002] With the rapid increase of social energy demand and the increasingly prominent climate and environmental problems, countries have increased their support for renewable energy. Wind energy has developed rapidly due to its renewable, clean and pollution-free advantages, and relatively low power generation costs. Wind power The total installed capacity of units and the scale of wind farms have expanded rapidly. However, the influence of wind farms on the stability and reliability of power grid operation is becoming more and more prominent, which greatly increases the difficulty of power grid disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/32H02J3/18
CPCY02E10/766Y02E40/30Y02E10/763Y02E70/30Y02E10/76
Inventor 刘颖明王晓东姚兴佳谢洪放朱童
Owner 大连融慧能源科技有限公司
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