Method for reducing power consumption rate of comprehensive field of wind farm

Abstract

The invention provides a method for reducing the power consumption rate of the comprehensive field of a wind farm, comprising a step 1 of in combination with a wind power prediction system, reducing the no-load loss power of a wind-driven generator, a 35kV current collecting line, and a box-type transformer station by changing the operation mode of equipment with a small wind season or no wind season; a step 2 of reducing SVG reactive power consumption by setting a wind farm SVG in a constant-voltage mode and timely adjusting the SVG target voltage set value and cleaning the SVG regularly; anda step 3 of in combination with the field actual temperature and according to the actual temperature change of the environment, compiling a living power consumption management method and an equipmentarea heater switching control strategy. By changing the comprehensive scheme of the operation mode of the wind farm equipment, the method reduces the power consumption and the off-grid power consumption of the comprehensive field of the wind farm in the small wind season, thereby realizing a purpose of reducing the cost and increasing the efficiency of the wind farm.

Description

technical field [0001] The invention belongs to an electric power system, and in particular relates to a method for reducing the comprehensive power consumption rate of a wind farm. Background technique [0002] Tianrun Xiaocaohu Project, Northwest Branch of Beijing Tianrun New Energy Investment Co., Ltd., has a total installed capacity of 99MW and 66 Goldwind GW66 / 1500kW units. The wind farm is located in the Xiaocaohu wind area (Sanshili wind area) in the north of Toksun County, Turpan City, Xinjiang. The wind farm is about 50 kilometers away from Toksun County, with an altitude of 273-357 meters. The annual average wind speed of the wind farm is 11.37m / s , the maximum wind speed under the standard air density is 47.17m / s, and the main wind direction is northwest wind. According to the observations in previous years, the annual wind speed change trend is larger in spring and summer, and smaller in winter. The variation trend of daily wind speed is small wind during the da...

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Problems solved by technology

[0006] The present invention aims at the problems of the prior art, in order to achieve "reducing the power consumption of the comprehensive field and realizing the goal of reducing production costs", after the special wind farm comprehensively considers the on-site influencing factors, the power consumption of the comprehensive field in the small wind season is reduced by changing the operation mode , under the premise that the power consumption of the main transformer is uncontrollable and the main transformer in our field belongs to the Turpan ground regulation and control equipment, and the ground regulation is not allowed to withdraw from operation without major hidden dangers or defects, in order to achieve the goal of cost reduction and efficiency increase, After comprehensively considering the actual factors affecting the site, special wind farms reduce the comprehensive power consumption and off-grid power consumption of wind farms in small wind seasons by changing the operation mode of fans and box-type transformers. The adjustment of the operation mode reduces the power consumption of the comprehensive field and the off-grid power, and reduces the no-load loss of equipment

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