Method and device for starting control of wind generating set

Abstract

The invention discloses a method and a device for starting control of a wind generating set. The method comprises the following steps of: starting a state judgment module, adopting related data of the states and the starting of all subsystems obtained from a PLC (Programmable Logic Controller) before the wind generating set is started as input, judging that whether the starting condition is met or not; starting a state confirmation module, if the starting condition is met, triggering state switching, and entering a starting state; starting a state recording module and recording the state switching times; starting a control module, presetting the allowed state switching times in a state-switching counting period, and comparing the recording times in the period and the allowed times; starting a fault judgment module, and if the recording times are less or equal to the allowed times, directly entering a starting-state judgment module without triggering starting fault processing; and conversely, triggering starting fault processing, starting a fault processing module, and after the fault processing is finished, reentering the starting-state judgment module. The method and the device have the advantages that the starting-fault stop time and the impact to a power grid can be reduced, and the maintenance cost is reduced.

Description

technical field [0001] The present invention relates to the field of control of wind power generators, in particular to a method and device for start-up control of wind power generators. Background technique [0002] In recent years, with the continuous development of wind power generation, the installed capacity of wind farms has increased year by year, and the proportion of wind power generation has become larger and larger, and it has gradually become a conventional energy source. As the installed capacity of wind farms increases year by year, the daily maintenance work of wind turbines is also increasing, so it is necessary to reduce the failure of wind turbines as much as possible. At the same time, the downtime of wind turbine failures has an increasing impact on the power generation, and some of the failures that cause downtime can also be controlled, especially the number of starts and downtime. Due to the rapid development of wind power in the past few years, many ...

AI Technical Summary

Problems solved by technology

However, if the fan is started too frequently and connected to the grid, the grid-connected contactor will be frequently engaged and disconnected.

In this way, on the one hand, the service life of the converter will be shortened, and at the same time, it will have a certain impact and impact on the entire power grid, and it will also have a certain impact on the transmission chain of the wind turbine.

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