Indirect rotating speed control method based on width learning

Abstract

The invention discloses an indirect rotating speed control method based on width learning. The indirect rotating speed control method comprises the following steps of acquiring effective air speed information of a unit within a certain period of time; selecting unit output data relative to the effective air speed within a corresponding period of time by using interactive information; removing dependency in the acquired unit output data and carrying out a normalizing operation to construct a training set of a width learning system; determining the structure and parameters of the width learningsystem by using the training set to obtain an air speed estimating model; and giving an effective air speed value online by the model to further calculate a rotating speed tracking error and an indirect rotating speed control expression. The method reserves the advantage that a conventional indirect rotating speed control algorithm is simple in structure, overcomes the defect that the conventionalindirect rotating speed control algorithm is relatively slow in rate of convergence, can accelerate the accelerating and decelerating performance of the unit simultaneously, improves the wind energycapturing efficiency, and is simple and feasible, low in implementation cost and few in parameter needed to be debugged. Compared with the conventional indirect rotating speed control algorithm, the capacity of the unit can be improved and the benefit of an electric field can be increased.

Description

technical field [0001] The invention relates to the technical field of wind power generator control, in particular to an indirect rotational speed control method based on width learning. Background technique [0002] In the past few decades, wind power has developed rapidly all over the world. The wind in nature has strong randomness and indirectness, resulting in great unpredictability and volatility of wind power. "Wind curtailment" is common in the wind power industry. Therefore, the commercial value of wind power needs to be further developed. Lift and dig. [0003] Maximum wind energy capture is one of the main control objectives of wind turbines and an important guarantee for the maximum economic benefits of wind farms. In order to achieve this goal, the indirect speed control algorithm is generally used in the industry. The principle of this algorithm is very simple, that is, assuming When the wind speed is a constant value, only the steady state of the system is co...

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Problems solved by technology

[0006] In order to improve the wind energy capture efficiency of the indirect speed control algorithm and solve the problems of high implementation cost and difficulty in parameter selection of existing indirect speed control methods, the present invention provides an indirect speed control method with low cost and simple control parameter debugging, which can reduce wind power The construction and operation and maintenance costs of the farm, while accelerating the acceleration and deceleration performance of the wind turbine unit, increasing the production capacity of the unit, and increasing the economic benefits of the wind farm

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