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Smooth wind-optical generated output control method based on megawatt-grade battery energy-storage power station

A technology of battery energy storage and wind and solar power generation, which is applied in the fields of battery power and battery energy management, and smooth control of wind and solar power output, to achieve the effect of smoothing the total power of wind and solar power generation, convenient and effective control, and convenient management.

Active Publication Date: 2011-10-12
许昌许继电科储能技术有限公司
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Problems solved by technology

At present, there are very few patents, documents, and technical reports on the smooth control of wind power generation output based on megawatt-scale high-power and large-capacity battery energy storage power stations, and in-depth research and exploration are needed

Method used

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  • Smooth wind-optical generated output control method based on megawatt-grade battery energy-storage power station
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  • Smooth wind-optical generated output control method based on megawatt-grade battery energy-storage power station

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. In this example, a lithium-ion battery energy storage power station is taken as an example for illustration.

[0034] Such as figure 1 As shown, the wind-storage-storage combined power generation system includes a wind farm, a photovoltaic power plant, a battery energy storage power station, and a power grid; the wind farm, photovoltaic power plant, and battery energy storage power station are respectively connected to the grid through transformers. The schematic diagram of the internal connection of the wind farm and the photovoltaic farm is omitted here; each lithium-ion battery energy storage sub-unit in the battery energy storage power station is connected to a bidirectional converter.

[0035] figure 2 It is an implementation block diagram of the total power smoothing method of wind and wind power generation based on the megawat...

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Abstract

The invention relates to a smooth wind-optical generated output control method based on a megawatt-grade battery energy-storage power station. The method comprises the following steps: A. reading, storing and managing data; B. determining the initial total power requirement according to the initial smooth target value of wind-optical power generation and the total power value of wind-optical power generation; C. calculating the initial target power value of a battery energy-storage subunit; D. calculating the initial power command corrected value of each battery energy-storage subunit in real time; E. calculating the power command value of each battery energy-storage subunit and the total power smooth target value of the wind-optical generation; and F. outputting the data. According to the invention, the smooth wind-optical generated output control method based on the megawatt-grade battery energy-storage power station is implemented through an industrial personal computer and a communication platform, the real-time effective control on the megawatt-grade battery energy-storage power station can be realized, and the purpose of controlling the smooth wind-optical generated output can be realized.

Description

technical field [0001] The invention belongs to the technical field of smart grid and energy storage and conversion, and specifically relates to a method for smoothing wind power generation output based on high-power and large-capacity energy storage power stations, which is suitable for wind power generation output smoothing and mega Battery power and battery energy management method of watt-level energy storage power station. Background technique [0002] Due to the uncertainty and instability of wind power and photovoltaic power generation, the instantaneous rise or fall of wind power generation power will cause the output power to be unstable, making the grid-connected power of wind power and photovoltaic power generation fluctuate continuously. Moreover, as the proportion of wind power and photovoltaic power generation in the grid continues to increase, the smooth control of wind power and solar power output power has attracted more and more attention. [0003] With th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46
CPCY02E10/56Y02E10/76
Inventor 李相俊惠东许守平闫涛李建林杨凯来小康
Owner 许昌许继电科储能技术有限公司
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