Generating capacity metering system and method for wind power plant with shared main transformers constructed in stages

Abstract

The invention belongs to the technical field of wind power generation, and particularly discloses a generating capacity metering system and method for a wind power plant with shared main transformers constructed in stages. The generating capacity metering system for a wind power plant with shared main transformers constructed in stages comprises a main transformer, a switch-off meter is arranged on the high-voltage side of the main transformer, a first-stage current collection circuit and a plurality of later-stage current collection circuits are arranged on the low-voltage side of the main transformer, and an auxiliary switch-off meter is arranged between each later-stage current collection circuit and the main transformer. When the system is used, an auxiliary gateway meter does not need to be configured on the first-stage current collection line, the number of metering system devices of the whole wind power plant is small, and the system stability and economical efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a system and method for measuring the power generation of a wind farm for phased construction and sharing of main transformers. Background technique [0002] With the continuous development of wind power technology and installed capacity, wind power on-grid tariffs have also gone through bidding and approval tariffs, on-grid tariffs for local desulfurized coal-fired power plants plus grid subsidies, wind power benchmark on-grid tariffs for four types of wind energy resource areas, parity, etc. According to the stage and pricing model, the electricity price shows a downward trend as a whole. For wind farms built in phases, due to different electricity price policies for development projects in different periods, the on-grid electricity prices for projects in different phases of the same wind farm are different, and the gateway measurement method will sign...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a system and method for measuring power generation of a wind farm in which the main transformer is shared by stages, so as to solve the technical problem of high maintenance costs caused by setting auxiliary gateway metering points on each power collection line when the main transformer is shared by stages.

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