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Charge controller of wind turbine generator and control method thereof

A technology for wind turbines and charging controllers, which is applied in current collectors, battery circuit devices, electric vehicles, etc., can solve the problems of not using anemometers, and no wind turbine speed detection unit, so as to prevent stalls and achieve maximum Scope utilization, the effect of prolonging the service life

Inactive Publication Date: 2010-05-05
GLORYMV ELECTRONICS
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] At present, in my country's traditional off-grid wind power charging control system, due to cost considerations, no real-time anemometer is used, and the corresponding charging controller does not have a wind turbine speed detection unit.

Method used

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  • Charge controller of wind turbine generator and control method thereof
  • Charge controller of wind turbine generator and control method thereof
  • Charge controller of wind turbine generator and control method thereof

Examples

Experimental program
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Embodiment Construction

[0029] Such as figure 1 , figure 2 As shown, a charging controller for a wind-driven generator includes a rectifier circuit 1 connected to the output of the wind-driven generator. The output of the wind-driven generator is connected to three terminals U, V, and W. After the output is rectified and filtered, it is passed through an air switch K1 Connect to the charging main circuit. The output end of the rectification circuit 1 is connected to the battery pack 4 through the switch K1, the unloading circuit 2 and the BOOST boosting circuit 3, and the unloading circuit 2 and the BOOST boosting circuit 3 are also connected to the control circuit. Described control circuit comprises single-chip microcomputer 5, unloading circuit driving circuit 6, BOOST step-up control circuit 7, capture unit 8, current detection circuit 9 and is formed, and described single-chip microcomputer 5 input ports are respectively connected with capture unit 8 and current detection circuit The 9 phases...

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Abstract

The invention discloses a charge controller of a wind turbine generator and a control method thereof, and the charge controller comprises a rectifier circuit connected with the output of the wind turbine generator and is characterized in that the output end of the rectifier circuit is connected with a battery pack through a switch K1, an unloading loop and a BOOST circuit, and the unloading loop and the BOOST circuit are further connected with a control circuit. The rotational speed of a wind turbine is determined by detecting the frequency of the output voltage of the wind turbine generator, thereby rapidly and effectively protecting the wind turbine generator. The charge controller is provided with the BOOST circuit with the novel control mode, and the start and the stop of the BOOST circuit are controlled according to the detected rotational speed value of the wind turbine generator, thereby realizing the effective charge under the low wind speed condition and preventing the wind turbine generator from dragging and stopping. The maximum utilization of wind speed can be realized by the mutual coordination of the BOOST circuit and the unloading circuit. The limited-voltage and limited-current charge of batteries can be realized and the service life of the batteries can be prolonged through the intelligent control of a single chip micro-computer.

Description

technical field [0001] The invention relates to a permanent magnet wind power generator, in particular to a charging controller of the wind power generator and a control method thereof. Background technique [0002] There are two traditional wind turbine stall protection methods: 1. The charging controller judges whether the wind turbine is over-speeded by the level of the rectified voltage after the output of the wind turbine to protect it. Charging status can cause malfunction. 2. Use the yaw protection system of the wind turbine itself, that is, when the wind speed exceeds a certain value, change the windward angle of the wind turbine to protect the wind turbine. This method belongs to mechanical protection, the action is slow, and it cannot quickly and effectively protect the wind turbine. Therefore, such a traditional charge controller can easily cause stall damage of the wind turbine under harsh and changeable natural conditions. [0003] For the system supporting t...

Claims

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Application Information

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IPC IPC(8): H02J7/14
Inventor 熊才伟朱永亮
Owner GLORYMV ELECTRONICS
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