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Frequency coordination control method of electric system containing wind power

A power system and frequency coordination technology, applied in wind power generation, circuit devices, AC network circuits, etc., can solve problems such as high cost, low economy, and excessive energy storage capacity allocation

Active Publication Date: 2017-08-04
武汉龙德控制科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, relying on energy storage to meet the frequency regulation requirements of the system will cause problems such as excessive energy storage capacity allocation, high cost, and low economic efficiency.

Method used

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  • Frequency coordination control method of electric system containing wind power
  • Frequency coordination control method of electric system containing wind power
  • Frequency coordination control method of electric system containing wind power

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0140] In this embodiment, the IEEE10-machine 39-node system is simulated.

[0141] (1) Parameter setting

[0142] Taking the 10-machine 39-node system as the simulation research object, its network structure is as follows: image 3 shown. For the convenience of research, it is divided into three interconnected areas Area1, Area2, and Area3, and there are four main contact lines between each area. Only Area2 contains a wind farm with a rated capacity of 1200MW, which is connected at node 30. The ultra-short-term forecast curve of wind power and the actual output curve of the wind farm are shown in Figure 4 .

[0143] Other simulation parameters are set as follows: the system reference capacity is 100MVA, the line parameters and load parameters are derived from the literature [Wang Delin. Power System Continuum Electromechanical Wave Model and Electromechanical Disturbance Propagation Research [D]. Sichuan: Southwest Jiaotong University, 2007], Generator The parameters are...

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Abstract

The invention discloses a frequency coordination control method of an electric system containing wind power. The method comprises the steps of preparing a switching plan of a deep peak regulation state of a thermal power generating unit by utilizing an ultrashort prediction result of wind power on a prediction level based on an improved frequency analysis model, and then performing frequency coordination control of the system under real-time wind power injection by utilizing the switching plan of the deep peak regulation state on a real-time level. The frequency coordination control method improves the frequency stability of the system, is applicable to an interconnected network with high wind power permeability, and has a good popularization value and a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of power system operation and control, and in particular relates to a frequency coordination control method for a power system including wind power. Background technique [0002] At present, thermal power still occupies a large proportion in my country's power structure. Among them, there are few gas-fired units with fast climbing ability, and thermal power generation mainly relies on coal-fired units with low climbing rate. Large-scale wind power grid integration may make it difficult for traditional coal-fired units to track the net load of the system and maintain the active power balance of the system, resulting in frequency deviation beyond the limit, which seriously threatens the frequency stability of the system. [0003] Aiming at the above problems, scholars at home and abroad have carried out a lot of research, and their research methods can be roughly classified into two categories: [0004] (1) ...

Claims

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Application Information

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IPC IPC(8): H02J3/46
CPCH02J3/003H02J3/46H02J2203/20Y02E10/76
Inventor 徐箭徐琪王豹雷若冰唐旭辰易先坤
Owner 武汉龙德控制科技有限公司
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