Offshore wind power booster station load control system and method based on hierarchical protection

Abstract

The invention relates to an offshore wind power booster station load control system and method based on hierarchical protection. The space configuration of the system comprises an in-situ layer, a station area layer and a wide area layer, the in-situ layer is in communication connection with the station area layer, and the station area layer is in communication connection with the wide area layer; the in-situ layer is provided with an intelligent in-situ protection measurement and control device, the station area layer is provided with a station area protection and load control device, the wide area layer is provided with a line overload monitoring device, and the line overload monitoring device is used for monitoring the overload state of a line; the intelligent in-situ protection measurement and control device is used for acquiring the real-time power of each fan current collection line in real time and uploading the real-time power to the station domain protection and load control device; and the station area protection and load control device is used for selecting a fan current collection circuit unit with reduced output according to the reduced output signal and the real-time power of each fan current collection circuit in combination with a control strategy table, and sending a generator tripping signal to the corresponding intelligent in-situ protection measurement and control device.

Description

technical field [0001] The invention relates to a load control system and method of an offshore wind power booster station based on hierarchical protection. Applicable to the field of offshore wind power technology. Background technique [0002] In recent years, the development of my country's offshore wind power industry has shown a trend of acceleration, and the era of bidding online for offshore wind power is coming. Offshore wind power construction costs and equipment investment are high, and it is very important to systematically reduce the cost of key equipment in offshore wind farms to improve wind power investment benefits. On the other hand, due to the intermittent and fluctuating characteristics of offshore wind power output, during periods of low load and high output of wind turbines, it is necessary to implement a strategy of precisely removing wind turbines to ensure the quantitative peak-shaving capability of the power grid, thereby improving the power grid’s ...

AI Technical Summary

Problems solved by technology

[0004] Generally speaking, the wind power load control of the offshore wind power booster station needs to be realized by adding a separate control device, and the control strategy is only limited to providing a control method for removing the offshore booster transformer, and cannot precisely control multiple wind turbines. Line control, the control strategy is not flexible enough, which is not conducive to improving the load control performance of offshore wind power, can not effectively reduce the power loss of wind farms, and the power generation efficiency of wind farms cannot be guaranteed

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