A method and device for controlling the output power of a generator

A technology of output power and control method, which is applied in the field of electric power, can solve the problems of long adjustment time, many times of repeated comparisons, PID adjustment speed generator output power can not respond quickly, etc., and achieve fast adjustment speed and strong pertinence.

Active Publication Date: 2019-09-13
HEFEI WIN POWER
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Problems solved by technology

[0004] However, since PID adjustment needs repeated comparisons and judgments many times, the current output power value of the generator can be stabilized near the maximum output power value under the current wind speed. If the PID adjustment speed is too slow, the output power of the generator will not be able to respond quickly to changes in wind speed.

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  • A method and device for controlling the output power of a generator
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  • A method and device for controlling the output power of a generator

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Embodiment Construction

[0046]The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0047] An embodiment of the present invention provides a method for controlling output power of a generator, and the method is applied to a control component of a power generation system. Such as figure 1 As shown, the power generation system may include a generator, a rectification module, a DC / DC converter, a control component, a capacitor C2 and a battery BAT. Wherein, the DC / DC converter is a step-up chopper circuit, including a capacitor C1, an inductor L, a switch tube V1 and ...

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Abstract

The embodiment of the invention provides a control method and device for the output power of an electric generator, and belongs to the technical field of electric power. The method comprises the stepsthat the input voltage of a DC / DC converter at the current moment is acquired, and the comparison current is computed according to the input voltage of the DC / DC converter at the current moment and apreset comparison current computation algorithm; and when it is detected that the input current of the DC / DC converter at the current moment is larger than the comparison current, a preset pulse width modulation signal output at the current moment is adjusted into a low-level signal until a preset pulse width modulation signal of the next cycle starts. According to the control method and device,the adjusting speed of the output power of the electric generator can be higher, and the output power of the electric generator can quickly respond along with changes of the wind speed.

Description

technical field [0001] The present application relates to the field of electric power technology, in particular to a method and device for controlling the output power of a generator. Background technique [0002] A wind power generation system is a power generation system that converts wind energy into electrical energy, including a generator, a rectifier module, and a DC / DC (direct current / direct current, DC / DC) converter. The alternating current generated by the generator is rectified by the rectifier module , and then adjust the output power of the generator through the DC / DC converter. The wind speed in nature is constantly changing, and the maximum output power of the generator is different under different wind speeds. Therefore, it is necessary to adjust the output power of the generator through the generator power tracking control method, so that the output power of the generator can reach the maximum under different wind speeds. output power value. [0003] The ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/156H02P9/00H02P101/15
Inventor 张为民周一晨
Owner HEFEI WIN POWER
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