Offshore wind power device control method and system based on FPA-BP neural network

Abstract

The invention discloses an offshore wind power device control method based on an FPA-BP neural network, and the method comprises the steps: (1) collecting and preprocessing the data of an offshore wind power device, and building a training sample; (2) establishing an FPA-BP neural network model of the oil temperature of a gearbox, and training a BP neural network model by taking the training sample as an input quantity of an improved flower pollination algorithm; (3) obtaining a residual feature vector between the output of the BP neural network model and the real-time oil temperature of the gearbox; (4) obtaining the state of the gearbox by using the residual feature vector and a random forest algorithm; and (5) controlling the offshore wind power device according to the state of the gearbox. The invention further discloses an offshore wind power device control system based on the FPA-BP neural network. The improved flower pollination algorithm is adopted to optimize the BP neural network, and the random forest algorithm is adopted to monitor the state of the marine gearbox; and a offshore wind turbine generator participates in system frequency modulation through virtual inertia control, so that the stability of the offshore wind power device is ensured.

Description

technical field [0001] The present invention relates to a method and system for controlling an offshore wind power device, in particular to a method and system for controlling an offshore wind power device based on an FPA-BP neural network. Background technique [0002] In the context of the depletion of land resources and the increasingly serious environmental pollution, the country focuses on maintaining energy security through the development and utilization of marine resources. Among many renewable energy sources, wind energy has attracted the attention of countries all over the world because of its high utilization rate and advantages of not occupying land resources. [0003] Among the large-scale grid-connected offshore wind turbines in the world, doubly-fed wind turbines account for more than 70% of the total wind turbines. Since offshore wind power is mostly connected to the grid through flexible DC transmission, offshore wind power cannot participate in system freq...

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