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Wind power plant group automatic voltage control method and system based on load balancing

A technology for automatic voltage control and wind farm cluster, applied in transmission systems, wind energy power generation, system integration technology, etc., can solve the problems of inability to meet the timeliness requirements of voltage control at the collection station, and the workload of data maintenance and calculation is large. The effect of improving the network data processing capacity and reducing the amount of data maintenance

Inactive Publication Date: 2017-06-13
STATE GRID ANHUI ELECTRIC POWER
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Problems solved by technology

[0003] In order to realize the reactive power and voltage regulation function of the wind farm collection station, it is necessary to carry out detailed modeling of the wind farms within the jurisdiction, and the workload of data maintenance and calculation is relatively large. Obviously, a single data center server can no longer meet the needs of the collection station. Timeliness Requirements for Voltage Control

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  • Wind power plant group automatic voltage control method and system based on load balancing

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing:

[0016] This load balancing-based automatic voltage control method for wind farm groups includes the following steps:

[0017] Step 1. The automatic voltage and reactive power control AVC substation servers of each wind farm perform modeling analysis on the reactive power and voltage regulation capabilities of their own wind farms, and upload the analysis results to the data center server of the wind farm cluster collection station at the same time A and data center server B; among them, the two data center servers of A and B are connected based on cross-data center two-layer technology OTV and local load balancer;

[0018] Step 2. The two data center servers of A and B described in step 1 integrate the voltage regulation capabilities of each wind farm uploaded by the AVC substation servers of each wind farm and upload them to the main network AVC control center;

[0019] S...

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Abstract

The invention relates to a wind power plant group automatic voltage control method based on load balancing. The method comprises the following steps that 1, an automatic voltage reactive power control AVC substation server of each wind power plant performs modeling analysis on the reactive power voltage regulation capability of the corresponding wind power plant, and analysis results are uploaded to a data central server A and a data central server B of a wind power plant group pooling station at the same time, wherein the two data central servers A and B are connected on the basis of a cross-data center two-layer technology OTV and a local load balancer. The method has the advantages that the wind power plants are modeled through the AVC substations of the corresponding wind power plants, the reactive power voltage regulation capability of the wind power plants is analyzed, the problem of detailed modeling in all wind power plants in an EMS system of a major network AVC control center is avoided, and the data maintenance amount of the major network AVC control center is decreased.

Description

technical field [0001] The invention relates to the field of automatic voltage control of wind farm groups, in particular to a method and system for automatic voltage control of wind farm groups based on load balancing. Background technique [0002] As the hub connecting wind farms and large power grids, the wind farm collection station is not only a substation where different wind farms gather, but also a centralized sending station for the output of each wind farm. Therefore, in view of the volatility and randomness of wind power generation, in order to ensure the stability of the large power grid when wind power is connected to the grid, it is necessary to increase the control unit of the wind farm cluster collection station: on the one hand, it can coordinate and control the wind farms connected to the station to ensure wind power output. When sending out, the grid voltage can meet the requirements; on the other hand, when the collection station loses contact with the AV...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50H04L29/08H02J3/38H02J13/00
CPCG06F30/20H02J3/386H02J13/0017H04L67/1004H04L67/12Y02E10/76Y02E40/70Y02E60/00Y04S10/12Y04S10/16
Inventor 胡晓飞汤伟杨铖
Owner STATE GRID ANHUI ELECTRIC POWER
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