Wind farm scheduling method and system based on virtual power

A technology of virtual power supply and dispatching method, applied in the direction of system integration technology, information technology support system, resources, etc., can solve problems such as wind turbine power fluctuation hazards, and achieve the effect of avoiding the impact of economy and safety

Active Publication Date: 2022-02-11
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0003] In the past, for the uncertainty of wind power, the randomness of wind power was only represented by the power prediction error of the wind turbines in the wind farm, but the harm caused by the power fluctuation of the wind turbines in the wind farm was not considered

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  • Wind farm scheduling method and system based on virtual power
  • Wind farm scheduling method and system based on virtual power
  • Wind farm scheduling method and system based on virtual power

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Embodiment Construction

[0014] In the following, the present invention will be further described in detail in conjunction with the accompanying drawings and embodiments, so as to make the purpose, technical solutions and advantages of the present invention more clear. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] figure 1 A virtual power source-based wind farm scheduling method according to an embodiment of the present invention is shown. The method of this embodiment includes:

[0016] Step 101: Based on the output data of the wind turbines in the wind farm within the statistical period, divide the wind turbines into the operation category and the scheduling category

[0017] Specifically, the output data of each wind turbine in the wind farm within the statistical period can be input, and the probability distribution of the output data can be fitted through the kernel function to ob...

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Abstract

The invention discloses a wind farm dispatching method and system based on a virtual power source, which can minimize the loss of wind turbines in the wind farm, effectively improve the ability to absorb wind power and reduce the operating cost of the wind farm. The method includes: dividing the wind turbines of the operation type and the dispatching type; respectively equating the wind turbines of the operation type and the dispatching type into the operation virtual power supply and the dispatching virtual power supply, respectively establishing the dispatching models of the operation virtual power supply and the dispatching virtual power supply; The operating cost of the wind farm, the operating reserve cost, the penalty cost of wind abandonment, and the damage of the wind turbines in the wind farm are used to construct the objective function of the optimal dispatching model of the wind farm; Under the constraint of reserve capacity, solve the objective function of the optimal dispatching model of the wind farm to obtain the optimal dispatching model of the wind farm; receive the grid dispatching instruction, and set the output power of the wind turbines in the wind farm according to the optimal dispatching model of the wind farm.

Description

technical field [0001] The invention relates to the technical field of wind power dispatching, in particular to a virtual power source-based wind farm dispatching method and system. Background technique [0002] In order to control the active power of the wind farm, the wind farm needs to install an active power control system that can receive and automatically execute the active power output control signal sent by the dispatching department remotely to ensure that the maximum output power and power change rate of the wind farm do not exceed the grid dispatching agency Desired point. In the following specific cases, the wind farm should control its output active power according to dispatch instructions. For example, it is required to reduce the active power of the wind farm under grid failure or special operation mode to prevent the ultra-stable limit operation of the transmission line or the line overload to ensure the safety and stability of the power system; active powe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q50/06Y02E40/70Y04S10/50
Inventor 李茜刘贵豪张安安王嘉糯王鹏程邓发强袁进熊钰李茂银柏祥黄海涛
Owner SOUTHWEST PETROLEUM UNIV
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